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the water purification cartridge treats water with a halogen liberated from halogenated hydantoinyl resins and polymers , resulting in the safe , complete , and economical purification of non - potable water at low flow rates typically found in gravity feed filtration systems and in systems with low water pressures of less than about 1 psig . the cartridge of the invention purifies non - potable water of bacteria , viruses , and some protozoans without the need for additional power sources or risk to the consumer for exposure to chemicals that have been identified to have harmful , long - term effects . the cartridge described herein enables a gravity fed water purification system by combining the cartridge with conventional filters , such as porous diatomaceous earthen ceramic water filters or activated carbon filters packed either with granular activated carbon or block .

the invention discloses materials that adsorb readily to the surfaces of body tissues in situ and provide a steric barrier between such tissues , so that tissue adhesions , which typically form following surgical procedures , are minimized . these materials contain a polymer of hydrophilic molecules such as polyethylene glycol bound to a polymer that spontaneously adsorbs to biological tissue such as phenylboronic acid . the peg - pba co - polymer can be formed in a variety of geometries . the materials can also be used to coat prosthetics and other implants .

the invention relates to a method for producing extruded profiled elements from an elastomer material . in said method , the extruded profiled element is formed from the elastomer material in a first step , the extruded profiled element is entirely or partly surrounded by a thermoplastic material , the elastomer material that is surrounded by the thermoplastic material is cured , and the thermoplastic material is finally removed again once the elastomer material has been cured .

double cartridges for two - component compounds manufactured in one piece by injection molding have separate reservoir cylinders . discharge channels starting from each cylinder space are separated in a common orifice by two wall sections which start from separate cylinder walls and are brought in duplicate up to the channel end ; in addition , the channels receive a separate closure inserted axially from the outside . the one - piece connection at the orifice occurs either by an end - face web between the wall sections or through circumferential sections of an orifice ring embracing the channels . as a result , the diffusion paths in the plastic material of the cartridge are extremely long . yet the advantages of the one - piece double cartridge with respect to manufacture and handling are preserved . a variant with longitudinally bored closure remaining in the orifice is described , which forms together with a rotatable slide element a seal intended for opening and closing .

a method and apparatus for forming a vertical tubular form fill package feeding the film vertically downwardly over a spout , pressing the outer lateral edges of the film together between pressure rollers , feeding joined strips of plastic zipper consisting of interlocking elements and attaching webs between the outer edges of the film and the spout , positioning guide bars on either side of the zipper between the zipper webs and sealing bars outwardly of the guide bars with the sealing bars simultaneously forming a fin seal at the outer edge and joining the zipper webs to the inner surfaces of the film between the fin seal and the spout and thereafter cross - cutting and sealing to form packages enclosing contents dropped through the spout .

the present invention provides an antistatic resin - made chain for article conveyance capable of exhibiting a stable antistatic effect even in a dry or low - humidity environmental atmosphere or the like , keeping the antistatic effect through washings of the resin - made chain , and being subjected to horizontal recycling while maintaining the antistatic effect . the antistatic resin - made chain for article conveyance 1 may be formed endlessly by connecting a number of links with top plate 2 through connecting pins 8 . the link with top plate 2 may be made of plastics by integral molding of a synthetic resin material , at least one high - molecular weight antistatic agent , and , optionally , at least one sliding agent .

an improved system for attaching price tags to garments and other joining applications , in which individual fasteners are severed from fastener stock having a continuous , elongated plastic side member joined to a plurality of space - apart filaments . the fastener stock is advanced to a transfer site along a feed axis which is parallel to and proximate the axis of the needle through which severed fasteners are dispensed . a knife is mounted on a support slide which is slideable transversely to the feed axis , such support slide being urged toward the feed axis to cause the knife to sever an individual fastener from the fastener stock . a transfer slide engages a portion of the side member which becomes a t - bar of the severed fastener , and urges it toward the needle axis . the transfer slide is yieldably coupled to the support slide to permit the transfer slide to lag behind the knife until severing occurs . the support slide may comprise a primary slide , and the transfer member a secondary slide coupled to the primary slide by a compression spring .

an integrated maglev system consists of permanent or preferably superconducting vehicle - mounted magnets which interact with both active and induced track - based currents . the magnets on the vehicle which are used for propulsion serve the dual purpose of realizing both levitation and lateral stabilization . the contribution offered by this invention is that it is able to provide propulsion , levitation , and guidance using a single type of track - based coil interacting with a singular type of magnetic field which is affixed to the vehicle . the realization of multiple functions with a single coil reduces the cost and enhances the efficiency of this maglev system . in the main embodiment of this invention , propulsion currents are injected into brushes sliding along brush contact surfaces on the rail , series winding further eliminates the intermediate brushes leaving only the leading set of brushes and the trailing set . motion induced currents in the coils realize both the necessary levitation and guidance forces for the vehicle . the propulsion system is a linear dc motor and requires no power handling along the track . necessary operating power can either be carried on the vehicle or collected by a third rail pickup system . all coils in the track are supported by a reinforced recycled plastic matrix or similar material .

a phosphorescent vehicle part identification accessory comprising an article of molded plastic having formed therewith a phosphorescent compound adapted for glowing for a period of time following exposure to light energy . the phosphorescent article is secured to the vehicle in a location thereon for receiving illumination from other vehicles and external light sources and providing a decaying glow therefrom . the phosphorescent article may comprise a vehicle wheel valve stem cap , a strip , or a tab adapted for positioning about a vehicle keyhole .

in certain instances high shear rates , such as when a fracturing fluid is pumped downhole , tend to degrade the viscosity of low polymer guars in low salinity environments . in the past in order to improve guar efficacy a delayed cross - linker such as ulexite or colemanite , both boron ores , was added . recently it is been found that by adding a weak base , the overall viscosity of the guar was enhanced . the fracturing fluid typically includes a base fluid , in this case low salinity water , a gelling agent , a delayed crosslinker , a weak base , and other additives useful for treating a well such as friction reducers , buffering agents , clay control agents , biocides , scale inhibitors , chelating agents , gel - breakers , oxygen scavengers , antifoamers , crosslinkers , wax inhibitors , corrosion inhibitors , de - emulsifiers , foaming agents , or tracers .

a difference in pressure is generated between the two sides of a filter medium so that the liquid charged with biopolymers , for instance xanthan , that is fed through the inlet goes through the filter medium , wherein the biopolymers are retained by the filter medium . as opposed to crossflow filtration , the main direction of movement of the liquid is determined by the difference in transmembrane pressure . a cathode is arranged under the filter membrane . a membrane serving as anode is arranged on the opposite side of the process chamber . an electrical field is built up between the electrodes . due to the fact that the biopolymer components carry a negative surface charge , a force moving in the direction of the anode , and , hence , against the main direction of movement of the liquid , impinges upon said components in the electrical field , whereby the concentration of biopolymers is reduced in the surroundings of the filter medium and filtration speed is increased . a surprising , additional effect is that the electrical field leads to reinforced coagulation tendency of the biopolymers which further favors filtration by the formation of agglomerates .

absorbable polyester fibers , braids , and surgical meshes with prolonged strength retention have been developed . these devices are preferably derived from biocompatible copolymers or homopolymers of 4 - hydroxybutyrate . these devices provide a wider range of in vivo strength retention properties than are currently available , and could offer additional benefits such as anti - adhesion properties , reduced risks of infection or other post - operative problems resulting from absorption and eventual elimination of the device , and competitive cost . the devices may also be particularly suitable for use in pediatric populations where their absorption should not hinder growth , and provide in all patient populations wound healing with long - term mechanical stability . the devices may additionally be combined with autologous , allogenic and / or xenogenic tissues to provide implants with improved mechanical , biological and handling properties .

radical anions for use in the fragmentation of positively charged biopolymer ions by means of electron transfer are produced from substances previously unknown for use as etd production substances . the inventive substances produce radical anions that lead to electron transfer dissociations with a high yield of fragment ions . the substances have high volatility that allows them to be kept in unheated containers outside the vacuum system and transported into the vacuum system to an in vacuum electron attachment ion source via unheated lines and low molecular weights that allow the measurement of even very light fragment ions . in one embodiment , a suitable substance is 1 - 3 - 5 - 7 - cyclooctatetraene .

an ink jet printing method having the steps of : a ) providing an ink jet printer that is responsive to digital data signals ; b ) loading the printer with an ink jet recording element having a support having thereon an image - receiving layer of porous polymeric particles in a polymeric binder , the porous polymeric particles being prepared in the presence of an anionic or ationic dispersant , and the image - receiving layer containing a surfactant having a charge opposite to that of the dispersant used to make the porous polymeric particles , the surfactant being present in an amount from about 0 . 04 parts to about 0 . 30 parts by weight of the dispersant ; c ) loading the printer with an ink jet ink composition ; and d ) printing on the ink jet recording element using the ink jet ink composition in response to the digital data signals .

selective insect neonicotinoids is a class of pesticide active ingredients that share some characteristics in their chemical structures and bind to the nachr acetylcholine receptors . formulation of such compounds in oil suspension or oil dispersion is challenging due to their electrostatic interactions of the heteroatoms in oily media , that lead to irreversible flocculation or diminished homogeneicity and bleeding of such oil dispersions . imidacloprid , thiamethoxam , thiachloprid , nitenpyram , acetamiprid , clothianidin and dinetofuran and derivatives thereof with nachr binding ability are successfully formulated in oil suspension with the use of certain copolymeric anionic fatty - acid based dispersants , sorbitan derivatives , ionic surfactants , other non - ionic surfactants and inorganic polyvalent cationic salt dispersed in the oil . the formulations this way produced show excellent storage stability properties regarding physiochemical parameters , including stability of the neonicotinoid active ingredient , reduced bleeding , and complete redispersibility . further , they show excellent biological efficacy due to the reduced and homogeneous particle size below 2 μm when diluted — emulsified — in water .

a system for recovering vapor , such as residual isobutane , from powder , such as polyethylene powder , comprises surge vessel and a two - compartment purge column . the polymer passes through the surge vessel by means of valves such as ball valves on the inlet and outlet of the surge vessel . hot vapor , such as isobutane , is used to strip a large portion of the residual isobutane from the polyethylene in the top section of the purge column . part of the isobutane leaving the column goes to a hydrocarbon recovery section and part is heated and recycled as the stripping medium . in the bottom section , nitrogen is used to strip the remaining isobutane from the polymer . an analyzer controller sensing nitrogen in the isobutane stream to recovery controls pressure in the bottom section by manipulating a valve in the nitrogen off - gas line form the bottom section to control the nitrogen content of the isobutane stream being recycled as stripping medium .

a multifunctional bopp cigarette packaging film comprises an upper layer , a middle - upper layer , a middle layer , a middle - lower layer and a lower layer . the upper layer is a binary copolymerized polypropylene surface layer , both the middle - upper layer and the middle - lower layer are homopolymerized polypropylene antibacterial agent layers , the middle layer is a homopolymerized polypropylene stiffening agent layer , the lower layer is a binary copolymerized polypropylene bottom surface layer . also disclosed is a manufacturing method for the multifunctional bopp cigarette packaging film . the packaging film acts as an effective barrier , has slip property and relatively low moisture permeability as well as low cost , and is suitable for a high - speed packing machine .

a degradable polymer network obtained by adding from 0 . 2 to 10 parts by weight of a foaming agent to 100 parts by weight of a polylactic acid - base resin composition comprising from 80 to 100 % by weight of polylactic acid or a lactic acid - hydroxycarboxylic acid copolymer and from 0 to 20 % by weight of a plasticizer , conducting melt - foaming extrusion of resulting mixture , and opening the foam cells in the extrudate . the high polymer network is characterized in suitable flexibility and hydrolyzability and thus useful as a material for absorbing oils and body fluids , screens for sunlight , heat - insulating materials , filter media and packaging materials ; and does not accumulate as industrial wastes because of hydrolyzability in the natural environment , even though abandoned after use .

the present invention is a unitary piece block formed of polymers by a single injection molding step which are assembled into a recreational vehicle leveler . the invention ramp provides four sets of four connectors at a top of a floor plate , which are adapted to interlock in cavity structures formed within a cavity on the underside of the block . two adjacent blocks are secured together by applying to their top surfaces the securing cavity structure of an underside of a third such block . such blocks can be stacked in an interlocking manner to reduce storage space .

the present invention relates to a process for preparing , by condensation , copolymers having polyamide blocks and polyether blocks in which polyamide blocks having dicarboxylic chain ends are mixed with : a polyether having two oh chain ends , and a polyol having at least 3 oh functions . the copolymers have a higher molecular weight , higher mechanical properties , remain linear or only weakly branched . the multifunctionality of the polyol is only used for kinetic aspects . as regards the process , there is a reduction of cycle time , reduced technical requirements on the catalyst and vacuum system and a reduction of degradation which means a better colour stability . the invention also relates to these copolymers having polyamide blocks and polyether blocks and comprising in its chain the residues of a polyol having at least 3 oh functions .

an improvement in a light therapy device including multiple light - emitting diodes positioned in a handheld portable device is disclosed . where the housing and the leds are configured to have direct contact with the skin or tissue of the user without any intermediary materials , and light the surface and underlying layers of tissue for photodynamic stimulation of the cells . two iterations of the device utilize light known to have a bactericidal effect in the case or acne or rosacea . the devices are fabricated from an injection molded plastic housing . the housing contains an arrangement of 36 - 72 leds on a circuit board in an arrangement to provide even lighting over the skin or tissue surface .

provided is a method for preparing vinyl chloride with acetylene and dichlorethane for large - scale industrial production . acetylene , dichlorethane vapor and hydrogen chloride gas at a molar ratio of 1 :: are mixed ; the raw mixed gas is preheated ; the preheated raw mixed gas passes through a reactor containing a catalyst and reacts ; the resultant mixed gas is cooled to 30 - 50 ° c . and pressurized to 0 . 4 - 1 . 0 mpa , and then cooled to ambient temperature , and further frozen to − 25 - 15 ° c . for liquefaction isolation , and unliquefied gas is recycled and reused ; liquefied liquid is sent to a rectifying tower for rectification , and vinyl chloride monomers meeting polymerization requirements are obtained . the present invention has the advantages of eliminating mercury contamination completely , simplifying the reactor structure , recycling hydrogen chloride and acetylene , reducing waterwash process , avoiding mass production of waste acid and improving utilization of chlorine .

a medical device provided with at least a partial surface coating of a thermoplastic copolymer of tetrafluoroethylene and perfluoroalkylvinylether that is free of cross - linking monomers and curing agents . the fluoropolymer coating is preferably an amorphous thermoplastic , is highly inert and biocompatible , has elastomeric characteristics that provide desirable mechanical properties such as good flexibility and durability . these characteristics allow the coating to be considered “ functionally transparent ” because it withstands mechanical deformations required for the assembly , deployment , expansion , and placement of medical devices , without any adverse effect on the mechanical and biological functionality of the coated device . further , its inertness , derived from the perfluorocarbon structure , contributes to its functionally transparent nature . the coating can be provided with various liquid or solid additives , can be loaded with large quantities of additives including a wide range of therapeutic agents , and has excellent drug elution characteristics when elutable additives are used . the desirable mechanical characteristics are surprising given the absence of cross - linking monomers and curing agents that would otherwise render such materials inadequately biocompatible . the perfluoroalkylvinylether may be perfluoromethylvinylether , perfluoroethylvinylether or perfluoropropylvinylether .

biodegradable anionic polymers are disclosed which include recurring polymeric subunits preferably made up of dicarboxylic monomers such as maleic anhydride , itaconic anhydride or citraconic anhydride . free radical polymerization is used in the synthesis of the polymers . the polymers may be complexed with ions and / or mixed with fertilizers or seeds to yield agriculturally useful compositions . the preferred products of the invention may be applied foliarly or to the earth adjacent growing plants in order to enhance nutrient uptake by the plants .

a packaging article for protectively storing perishable paper products that includes protective materials that protect the packaging article and its contents from any of a number of threats including water damage , fire damage , mold , insects , bacteria , fungi and theft . the packaging article comprises a bottom wall , side walls and a closure that surround and define an interior cavity in which the paper products are stored or transported . each of the bottom wall , side walls and closure are made from a plurality of layers . protective materials are applied to one or more of the bottom wall , side walls and closures by either impregnating a paper or cardboard with a suitable chemical , applying a film thereover , spraying a coating thereover or sandwiching the protective material between two adjacent layers . suitable chemicals that produce the desired properties include , but are not limited to wax , oil , plastic , polybrominated diphenyl ether , polybrominated biphenyl , brominated cyclohydrocarbons , boric acid and hydrogen peroxide . a radio frequency identification tag may also be received within the wall of the packaging article to protect the same against theft .

a belt for conveying elements in provided wherein the belt comprises a compressible layer attached to the top surface of the belt . preferably the compressible layer is resiliently deformable to cushion the impact of items on the belt . the belt preferably is a link belt and the top surface of the belt comprises a bonding layer for adhering the compressible element to the belt . the bonding layer may be a thermoplastic urethane that is heat fusible with the compressible layer to adhere the compressible layer to the belt .

aqueous solutions of polysaccharide biopolymers , e . g ., xanthomonas / carbohydrate fermentation worts , are heat treated for more than 5 , but less than 60 minutes , at a ph ranging from 3 . 5 to 6 . 2 , to improve the viscosifying , filterability and injectability properties thereof , and are well adapted , e . g ., for secondary and tertiary hydrocarbon recovery by waterflooding therewith .

an injection molding die for an injection molding machine is capable of injecting a plurality of plastic components or one plastic component and a gas or liquid , selectively or simultaneously . the molding die includes a die base with a die channel which slidably receives a sleeve element . an injection aperture in the die channel can be closed or opened by the sleeve element . a pin channel in the sleeve element receives a closing pin which is fixed to the die base . a passage opening in the sleeve element can be closed or opened by relative movement between the sleeve element and the closing pin . a lever arrangement extends laterally from the sleeve element for moving the sleeve element in the die channel .

the present application discloses a method and apparatus for purging oxygen from a sealed container interior and a purge substance used in such method . the method is exemplified herein in an improved batch process and apparatus for the thermal decomposition of hydrocarbon containing material in a sealed reactor interior . according to the present invention the improved batch process may comprise , 1 ) loading the hydrocarbon containing material into and sealing the reactor , 2 ) purging or expelling oxygen from said reactor , and 3 ) heating said reactor to a predetermined temperature so as to obtain decomposition products , the improvement residing in the purging step including loading the reactor with an oxyphilic solution prior to sealing and heating the interior of the sealed reactor to a predetermined temperature to induce the oxyphilic solution to drive oxygen out of the interior of the container through said gas evacuation component . the purge substance may be for example , an oxyphilic solution as described herein . using the method of the present invention , material such as rubber , vinyl - polymers , styrene - polymers , ethylene - polymers , synthetic fibers , domestic waste , biomedical waste , animal waste and vegetation or any other type of hydrocarbon containing material and mixtures thereof may be efficiently processed .

a coated plastic container provides for low permeability to gases and vapors . a method and system for coating plastic containers includes applying a thin inorganic oxide layer to the external surface of the containers with plasma - assisted vacuum vapor deposition . for example , the coating can include silica which is bonded to the external surface of the container . this coating is flexible and be can be applied regardless of the container &# 39 ; s internal pressure or lack thereof . the coating firmly adheres to the container and possess an enhanced gas barrier effect after pressurization even when the coating is scratched , fractured , flexed and / or stretched . moreover , this gas barrier enhancement will be substantially unaffected by filling of the container . a method of recycling coated plastic containers and a method and system for packaging a beverage using the coated containers are also disclosed .

articles produced from hydrophobic polymers are surface - coated with thin films of starch in order to render the surfaces hydrophilic . the thin coatings form on the surfaces of plastic objects when the objects are placed in contact with hot , aqueous solutions of starch . these starch coatings are adherent to the hydrophobic plastic surfaces under both wet and dry conditions , and they permit the surfaces to be uniformly wet with water . the coatings may be rendered even more adherent when wet by graft polymerizing the starch with a synthetic monomer . resultant products have the potential for improved biocompatibility , improved compatibility with hydrophilic reagents , reduced build - up of electrostatic charge , reduced blocking , reduced friction , improved absorption of water - based dyes , and improved adhesion properties . the starch coatings are non - toxic , inexpensive and biodegradable .

presented are a device and a method to produce helical coils from a filament , preferably consisting of plastic . a rotatable winding spindle and an associated filament - shaping device are provided to wind up the filament in a helical pattern , whereby the winding spindle extends beyond the filament - shaping device in the feed direction of the filament to be wound up . viewed in the feed direction of the filament to be wound onto the winding spindle , a pressing device is provided downstream of the filament - shaping device that presses the filament against the winding spindle and is designed to generate a predominantly adequate friction contact between the filament and the winding spindle so that the rotation of the winding spindle essentially takes along the filament into the winding direction .

a detergent composition comprising an alkaline metal hydroxide , an alkaline metal salt of l - aspartic - n , n - diacetic acid , optionally a scale inhibitor and / or an alkaline metal salt of gluconic acid . this detergent composition is used for removing soils , stains and other contaminants adhering to or deposited on the surfaces of glass , plastics , metals , etc ., specifically the hard surfaces of , for example , containers for foodstuffs such as drinks and process foods , container boxes , piping of food production equipment , tanks , sterilizing plates , plate heat exchangers , filling machines and the like , by such means as soaking the parts to be cleaned in a cleaning solution , circulating a cleaning solution in the facilities to be cleaned , or spraying a cleaning solution over the surfaces to be cleaned . this detergent composition has excellent cleaning performance and excellent biodegradability .

a method for preparing a laminate coronary stent comprising : providing a stent framework ; and depositing a plurality of layers on said stent framework to form said laminate coronary stent ; wherein at least one of said layers comprises a bioabsorbable polymer .

biodegradable novelty packages , which can take the shape of eggs , for example , are useful for containing small toys , candy or the like . such small toys , candy and the like are often hidden in petroleum - based plastic eggs for children &# 39 ; s amusement . biodegradable novelty packages as described herein are formed of a biodegradable resin , such as a biodegradable thermoplastic .

a shaped panel and method of manufacture thereof comprises an open - cell core having multiple cells with cell walls extending perpendicularly to the opposite sides of the core . linerboard covers one or both sides of the core with thermoplastic resin being provided as adhesive between the core and the one or more linerboards . the resulting sandwich structure is heated and shaped in a mold .

an agent and method for treating biodegradable synthetic yarns fabricated from a polymer comprising lactic acid as a main component , which enable improved lubricity , cohesion , etc . to be so imparted to the biodegradable synthetic yarns that the yarns can be prevented from fuzzing and breaking at every step from spinning to down - stream step , especially at a false twisting step and improved in terms of bulkiness , providing yarns having improved mechanical properties in a stable manner . the agent of the invention comprises 0 . 1 to 30 weight % of a specific functional agent , and a lubricant and a surfactant in the total amount of 70 weight % or greater , and has a friction coefficient in the range of 0 . 04 to 0 . 35 .

a non - metallic element system is provided as part of a downhole tool that can effectively seal or pack - off an annulus under elevated temperatures . the element system can also resist high differential pressures without sacrificing performance or suffering mechanical degradation , and is considerably faster to drill - up than a conventional element system . in one aspect , the composite material comprises an epoxy blend reinforced with glass fibers stacked layer upon layer at about 30 to about 70 degrees . in another aspect , a mandrel is formed of a non - metallic polymeric composite material . a downhole tool , such as a bridge plug , frac - plug , or packer , is also provided . the tool comprises a support ring having one or more wedges , an expansion ring , and a sealing member positioned with the expansion ring .

low molecular weight polypelptides with chemokine activity were conjugated to water - soluble polymers and retain biological activity . these conjugated chemokines demonstrate enhanced and unexpected biological properties when compared to unconjugated chemokines .

the instant invention involves the use of a combination of preparatory steps in conjunction with mass spectroscopy and time - of - flight detection procedures to maximize the diversity of biopolymers which are verifiable within a particular sample . the cohort of biopolymers verified within such a sample is then viewed with reference to their ability to evidence at least one particular disease state ; thereby enabling a diagnostician to gain the ability to characterize either the presence or absence of at least one disease state relative to recognition of the presence and / or the absence of the biopolymer .

delivering nitric oxide to a treatment site , such as in the area of an implanted stent , over a period of hours or days is desirable ; however , the storage and release of nitric oxide in medically - relevant situations and amounts is a challenge , in part due to the gaseous nature of nitric oxide and its instability in the presence of oxygen . the present invention provides a method of preparing compositions of matter , particularly those comprising nanotubules , containing nitric oxide or gases with nitric oxide - like biological activity , where the gas is non - covalently bound to the composition . these compositions allow for the storage of nitric oxide or a related gas , followed by controlled release of the gas . compositions disclosed in the present invention include polymers , articles , pills , capsules , and medical devices .

the present invention relates to polymeric compositions useful in the manufacture of biocompatible medical devices . more particularly , the present invention relates to certain cationic monomers capable of polymerization to form polymeric compositions having desirable physical characteristics useful in the manufacture of ophthalmic devices . such properties include the ability to extract the polymerized medical devices with water . this avoids the use of organic solvents as is typical in the art . the polymeric compositions comprise polymerized cationic hydrophilic siloxanyl monomers prepared by the process disclosed herein .

the invention provides a method and formulation for cleaning a soiled substrate , the method comprising the treatment of the moistened substrate with a formulation comprising a multiplicity of polymeric particles , wherein the polymeric particles comprise at least one antimicrobial agent . preferably , the substrate is wetted so as to achieve a substrate to water ratio of between 1 : 0 . 1 to 1 : 5 w / w . optionally , the formulation additionally comprises at least one additional cleaning agent and , in this embodiment , it is preferred that the polymeric particles are mixed with the at least one additional cleaning agent . preferably , the additional cleaning material comprises a surfactant , which most preferably has detergent properties . most preferably , the substrate comprises a textile fibre . typically , the polymeric particles comprise particles of polyester or nylon , most preferably in the form of beads . the results obtained are very much in line with those observed when carrying out conventional aqueous cleaning processes and the method provides the significant advantage that the use of antimicrobial agents in or on the polymer bead greatly improves the overall hygiene in the washing machine by preventing mould and bacterial growth on the polymer particle surfaces , particularly at low temperatures .

a body panel includes a hood portion configured to extend over and across a vehicle front compartment , and two fender portions . a unitary , one - piece inner panel and a unitary , one - piece outer panel cooperate to define the hood portion and the two fender portions . the inner panel and the outer panel comprise a substantial portion of a vehicle body front end , replacing the multitude of inner panels , outer panels , and reinforcements in a prior art vehicle body . the body panel preferably functions as a load - bearing vehicle frame portion , reducing or eliminating prior art vehicle frame components . a method of manufacturing the body panel includes forming an inner panel and an outer panel using superplastic forming , quick plastic forming , or sheet hydroforming , and connecting the inner panel and the outer panel .

the present invention is directed to a method for preparing particulate carriers for olefin polymerization procatalysts in which : a heated melt of a complex compound is provided having the formula i mgcl . sub . 2 . nroh . med in which roh is a lower aliphatic alcohol , ed is an electron donor , n is 1 to 6 and m is 0 to 1 , the heated melt is fed to a nozzle atomizing it , the melt to be atomized is sprayed from the nozzle into a chamber , where it is distributed in the form of an atomized melt and then solidified to from fine carrier particles and the fine carrier particles are recovered . during this process an electric charge is fed into the melt to be atomized or which has been atomized , which decreases the surface tension of the solidified melt and prevents the agglomeration of the formed droplets . the charge can be achieved by arranging in connection with the nozzle an electrode , which together with , for example , the grounded melt , forms a static electric couple .

a base thermoplastic film , has a coextruded or coated heat seal layer formed from a polymer blend which provides good peel - apart heat seals . when the film is sealed to itself , the seal opens by separation at the original seal surface without film tear , or by delamination of the sealant material from the primary base film substrate without the formation of strands extending between the two base film . the heat seal layer which may be on one or both sides of the base layer comprises a ternary blend of a random ethylene - propylene copolymer , a butene polymer and a low density polyethylene . the films are cast , and oriented in the solid state up to about two times in the machine direction and six times or more in the transverse direction to give films having good dead - fold and water vapor transmission rate characteristics making them highly suited for packaging , particularly for dry foods .

a procedure for the production of a modified acrylic sheet with high impact resistance , of the type in which a prepolymerization is done of a mix of monomers with a polymer of dissolved dienic monomers . the procedure is done in batches at low temperatures without there being a separation of the polymer of dienic monomers from the rest of the mix . the procedure facilitates obtaining a modified acrylic sheet with high impact resistance whose transmittance is kept after being subjected to an accelerated degradation , and whose impact properties are not reduced more than 50 % after said accelerated degradation .

an iron - based powder composition for powder metallurgy excellent in flowability and compactibility is produced in accordance with a method comprising the steps of : adding to iron - based and alloying powders , for a primary mixing , a surface treatment agent , and in addition , for a secondary mixing , a fatty acid amide and at least one lubricant , wherein the lubricant has a melting point higher than that of the fatty acid amide and can be a thermoplastic resin , a thermoplastic elastomer , and inorganic or organic compounds having a layered crystal structure ; heating and stirring up a mixture after the secondary mixing at a temperature above a melting point of the fatty acid amide to melt the fatty acid amide ; cooling , while mixing , the mixture subjected to the heating and stirring process so that the alloying powder and a lubricant having a melting point higher than the fatty acid amide adhere to a surface of the iron base powder subjected to the surface treatment by an adhesive force of the melt ; and adding at the time of the cooling , for a tertiary mixing , a metallic soap and at least one thermoplastic resin or thermoplastic elastomer powders and inorganic or organic compounds having layered crystal structure . the mixture is heated to about 423k and loaded into a die for compaction .

apparatuses and methods for simultaneously extruding two lengths of plastic tubing wherein each of said lengths includes alternate axial sections of materials having different characteristics . the apparatus includes two extruders which feed plastic extrudate to a dual die head having first and second dies for forming tubular lengths . valves are operatively associated with each extruder for selectively feeding plastic extrudate from each extruder to either of the dies . the valves are intermittently operated so that during one cycle extrudate from the first extruder is fed to the first die and extrudate from the second extruder is fed to the second die , and during alternate cycles extrudate from the first extruder is fed to the second die and extrudate from the second extruder is fed to the first die . a cooling tank receives the tubular length from the dies for setting the plastic material . a take - off mechanism is associated with each die for pulling the tubular extrudate from the die and through the cooling tank . tubular extrusions having axial sections of different lengths may be made by setting the extruders to run at different speeds and programming the take - off mechanisms to intermittently operate at different speeds so that each take - off mechanism will operate at a faster speed when the faster - operating extruder is feeding into the die with which the take - off mechanism is associated and at a slower speed when the slower - operating extruder is feeding into that die .

a dilatation balloon is fabricated according to a process that forms cavities and indentations in the balloon and / or catheter sections . a length of tubing is axially elongated and radially expanded in a form to provide the requisite biaxial orientation and strength . then , an excimer laser or another type of laser or mechanical material removal tool is used to remove the polymeric material , virtually without thermal effects . cavities in the sleeve sections of the balloon are defined and if desired , indentations in the cone sections are defined . material removal , particularly near the balloon sleeves enables a thinner , more flexible bonding area between the catheter shaft and the balloon . further , the indentations along the cone sections enables tighter wrapping of the balloon for a reduced delivery profile . rigidity near the sleeves is reduced for better maneuverability of the catheter in tortuous passageways .

bioprosthetic devices include an exterior biological tissue member which at least partly defines a cavity , and a proteinaceous biopolymer which fills the cavity , and intercalates and is chemically bound to the tissue of the surrounding biological tissue member . in preferred forms . the bioprosthetic device is a bioprosthetic vertebral disc having a fibrillar outer annulus which surrounds and defines an interior cavity and is formed by removal of at least a substantial portion of the natural gelatinous core therefrom . the cavity defined by the fibrillar outer annulus may then be filled with a flowable proteinaceous biopolymer . preferably , the proteinaceous biopolymer is a liquid mixture comprised of human or animal - derived protein material and a di - or polyaldehyde , which are allowed to react in situ to form a cross - linked biopolymer within the cavity . the liquid mixture may be formed in advance of being introduced into the cavity , or may be formed simultaneously during introduction into the cavity .

a razor cartridge is provided with a skin engaging structure at the cap and / or guard surface of the razor cartridge . the skin engaging structure has an array of closely spaced elongated protrusions integrally formed with a substrate . in use , the protrusions produce a pleasant tactile sensation tending to reduce shaving discomfort . the protrusions are formed by closely packed molded flexible filaments that can be less than 0 . 25 mm wide and have spacing between adjacent protrusions less than 0 . 2 mm . the protrusions can have a density greater than 5 protrusions per mm 2 . the skin engaging structure can be molded from e . g . an olefin polymer . the substrate can be integrally formed with a housing of the razor cartridge .

disclosed are micronized hydrophilic systems of highly concentrated , cross - linked biopolymers . the system is created by combining a biopolymer with a cross - linking agent under mechanical kneading and allowing the biopolymer to undergo a cross - linking process followed by purification , drying and milling . the resulting micronized biopolymer system has an increased biopolymer concentration and increased longevity within the body .

this invention pertains to a sustained release complex of one or more peptides , one or more proteins or a combination thereof immobilized on an absorbable polymer microparticle optionally having an absorbable polymer coating . the microparticle complex of this invention comprises a peptide and / or protein which have at least one amino group and / or at least one carboxyl group per molecule and a solid absorbable polyester microparticle having surface and subsurface carboxylic group or amino groups in sufficient amounts to bind the peptide and / or protein so that the immobilized peptide or protein represent 0 . 1 % to 30 % of the total mass of the microparticle complex . the microparticle complex with immobilized peptide and / or protein are optionally further encased individually or in groups with an absorbable polymer to control , further , the release of the immobilized peptide and / or protein . to control the release of the immobilized peptide and / or protein even further , the encased microparticles can be incorporated into a composition with an absorbable gel - forming liquid that transforms to a flexible gel or semi - solid upon contacting water in the biologic environment .

freeform , additive manufacturing equipment , processes and products , including residential , commercial and other buildings . a movable extruder places extrudate that solidifies in open space to create “ scaffolding ” or “ skeletons ” of buildings and other products . elongated extrudate elements are fused to each other or connected by other means to form a cellular structure . filler material such as polymeric insulating foam may simultaneously or thereafter be placed within the cellular structure to contribute desired strength , rigidity , insulative , barrier or other properties . finish materials may also be applied .

the invention relates to nanoparticles of polyoxyethylenated derivatives , having a size of less than 1 micrometer , for the administration of pharmaceutically - or cosmetically - active ingredients . the inventive nanoparticles comprise a biodegradable polymer , a polyoxyethylene - derived block copolymer and at least one pharmaceutically - or cosmetically - active ingredient . the invention further relates to the method of obtaining the aforementioned nanoparticles and to compositions containing same .

the present invention is a method of coating a substrate . first , a layer of liquid polymeric coating having a pigment and a solvent is applied to the substrate . an ultrasonic acoustic source is then provided and operated at a frequency of from about above 40 khz to provide an acoustic pressure field and an it acoustic pressure of above 190 db and directing the main lobe of the acoustic pressure field toward the layer of liquid polymeric coating . this acoustic pressure field reduces the gradient in and smoothes any uneven surface features in the liquid polymeric coating .

an apparatus and method of handling flexible foldable materials , particularly thermoplastic film webs , continuously fed from a supply by continuously moving input nip rolls to a dancer including a roll mounted for movement transversely to its central axis . intermittently moving draw rolls intermittently advance material from the dancer roll . the dancer roll is reciprocated in coordination with the intermittent advancement so as to decouple the translational inertia of the dancer roll from the material . a flexible belt also simultaneously rotates the dancer roll so as to decouple rotational inertia of the roll from the length of material . the dancer may be driven by a cam in common with a work station reciprocating against the material fed from the dancer .

a method for treating a subterranean wellbore . more specifically , a method for removing wellbore solids . a first , polymer containing fluid is placed in the solids bed . a second , viscosifying fluid is then placed into the solids bed thereby agitating the solids in the bed and causing the formation of a gel capsules when mixed with the biopolymer fluid . these gel capsules are capable of trapping or entraining the agitated solids . the gel capsules typically have a relatively high volume and a relatively low density , thereby making their removal from the wellbore easier .

a method of preparing an oligomeric or polymeric compound in a liquid solution is disclosed which consists of reacting a michael donor compound with a michael acceptor compound in the presence of a first catalyst and a group ia and / or group iia metal ion catalyst .

the present invention relates to the development of a hyaluronic acid and hyaluronic acid hybrid nanoparticle systems for the administration of active molecules , peptides , dna and / or other hydrophilic or hydrophobic molecules , the composition of hyaluronic acid and hyaluronic acid hybrid nanoparticle systems , and the procedure for their development and use . these nanoparticles are made up of hyaluronic acid in salt form , preferentially the sodium salt of the polymers or hybridized with magnetic fe particles . the nanoparticles are basically from natural polymers , biocompatibles and biodegradables . the nanoparticles allow the controlled release of the active molecules they transport and their orientation towards the target tissues . the present invention teaches a procedure to elaborate particles of hyaluronic acid with a diameter less than 180 nm ., that incorporate an active ingredient , independent of its hydrophilic or hydrophobic nature . procedures to produce the particles are described . the present invention will be useful in methods of transdermal drug delivery using hyaluronic acid nanoparticles , among other uses .

the present invention provides a novel biomass plastic . the biomass plastic of the present invention is an alternative to polyethylene terephthalate and is composed of an adhesive polymeric substance . the biomass plastic is obtained by a production method including the steps of : culturing a microorganism mixture composed of bacillus subtilis , bacillus pumilus , and bacillus thuringiensis at 30 to 50 ° c . for 12 hours to 4 days in an environment including starch and silicic acid or a silicate acceptable in microbial culture ; subsequently adding corynebacterium glutamicum thereto and culturing it at 30 to 50 ° c . for 12 hours to 4 days ; and collecting the adhesive polymeric substance from culture obtained .

a method for linking strongly negatively charged biological macromolecules like deoxyribonucleic acid , ribonucleic acid and glycosaminoglycans to plastic substrates , comprising contacting the macromolecules and the plastics with a non chaotropic solution containing a salt in an amount of at least 20 % of its saturation concentration , or having a ph below the pka of the charged groups of the macromolecules to be linked . also disclosed are the products of the method , in particular a microtiter plate with plastic wells coated with the negatively charged non - proteinaceous macrobiomolecules .

apparatus for applying a reactant gas to an extrudable polymer , as , for example , a carbonate resin having the phenolic hydrogen end atoms replaced by stress corrodant preventive groups which are halohydrocarbon groups or a silane groups or the hydrogen end atoms replaced by a capping group having fluorescent properties to provide ultraviolet light and stress corrosive protection . the apparatus includes a heatable extruder barrel having a receiving end communicating with said polymer supply containing means and a discharge end for communication with an extrusion die , an extruder screw rotatably mounted in the barrel for moving a supply of non - fused polymer from the receiving end through the barrel for heating to fusion temperature therein and to the discharge end thereof for passage therefrom through the extrusion die , an annular reactant gas inlet communicating with the interior periphery of the barrel at a position between the receiving and discharge ends thereof upstream from the position therein wherein the polymer reaches its fusion temperature , and an annular reactant by - product gas vent communicating with the interior periphery of the barrel at a position downstream of the reactant gas inlet .

disclosed is a process for the production of a shaped article from a thermoplastic resinous material , comprising the steps of heat plastifying the thermoplastic material ; injecting the heat - plastified plastic material into a forming tool having a first shape configuration and at least one parting plane , to form a pre - form of the thermoplastic material ; subjecting the thermoplastic material pre - form in the forming tool to a cooling phase ; providing at least a partially new second shape configuration to the forming tool containing the pre - form ; and during the cooling phase subjecting the pre - form in the forming tool having the second shape configuration to at least one pressure treatment under elevated pressure to produce a shaped article . also disclosed are several embodiments of apparatus for carrying out the process .

a process for compression molding a fiber reinforced thermoplastic resin article that includes subjecting the fiber reinforced resin material to heat and pressure to form the article , then directionally cooling the mold sequentially from bottom to top to provide a thermal gradient suitable for creating directional solidification of the material .

a power - operated tool is fitted with a drive , whose driving shaft can , by means of a connecting coupling whose actuation depends on the reaction torque , be coupled with a driven shaft . the connecting coupling first interrupts transfer of the torque to the driven shaft , so that , in spite of the running drive , no torque can be transferred to the driving shaft . immediately afterwards , the drive is disconnected . as a result of this sequence of disconnections , the motor , which continues running , can no longer have any influence on the work in progress so that the fastener being tightened does not reach the point of plastic deformation .

accurately and uniformly cooling a preformed plastic sheet that is formed at elevated temperature in an elongated plastic sheet die , using upper , middle and lower vertically arranged cylindrical cooling rolls closely spaced to one another to engage the sheet between them , and providing one or more auxiliary cooling rolls connected to provide additional cooling for the sheet .

a process and medium are disclosed for the lyophilization of red blood cells which comprises the use of solutions including monosaccharide hexoses and pentoses , and / or biocompatible polymers to permit the reconstitution of viable red blood cells .

a microwavable container useful in the microwave heating of items , particularly foodstuffs , comprises readily separable components . an outer shell which will remain relatively cool and , therefore , capable of being handled , is flexibly hinged to an inner shell capable of sustaining high temperatures . the inner shell rotatably folds about the flexible hinge in such a way that it is arranged in a substantially spaced relation to the outer shell and is releasably secured to the outer shell . the outer shell is made of a first microwavable polymeric material . the inner shell is made of a second microwavable polymeric material which is different from the first microwavable polymeric material . a consumer may heat a food product in the inner shell of the present invention without risking contact with that inner shell when the inner shell becomes hot . after use , the components are readily separable for separate recycling processes .

a process for the preparation of vinyl chloride homopolymer and copolymer pulverulent powders suitable for the preparation of plastisols with improved rheological properties , comprising polymerizing to form a vinyl chloride homopolymer or copolymer latex and drying said latex by atomization , the temperature at which the latex to be subjected to drying by atomization is employed being at least equal to 40 ° c . and being lower than the degradation temperature of said homopolymer or copolymer , and the resultant vinyl chloride polymer pulverulent powders .

a machine for the production of a web with individually wrapped drinking straws from two separate plastic films is disclosed . the machine includes a rotatable drum around which one of the plastic films is led and simultaneously given a corrugated form . the drinking straws are thereafter placed one by one in the recesses in the corrugated form and the second plastic film is applied and heat - sealed to said corrugated first film so that the drinking straws are completely enclosed in air - tight packages .

an apparatus for palletizing and wrapping a load of material which may be irregularly shaped solid articles ; liquid or flowable granules comprising a support base and an open upstanding framework adapted to form a volume to be at least partially filled with articles , wherein said framework provides a formwork for plastic film wrapped there around at least on its vertical periphery .

paraffin alkylation using solid , particulate catalyst is carried out by preparing an alkane - catalyst mixture in a wash zone , passing the alkane - catalyst mixture to a plug flow reactor where a minor amount of olefin is introduced to contact the alkane - catalyst mixture and react to form alkylate and the alkane - catalyst - alkylate mixture is passed through the reactor with a minimum of back mixing to restrict the reaction of alkylate with olefin , thus substantially preventing polymerization . the alkane - catalyst - alkylate mixture , substantially free of olefin is passed to a disengaging zone where the liquid is removed and the solid particulate catalyst is recovered and returned to the wash zone for recycle . the alkane is present in the reactor in sufficient molar excess to react substantially all of the olefin . any unreacted isoalkane is recycled to the reactor with make - up isoalkane added to maintain the molar excess . the preferred catalyst is an acid washed silica treated with antimony pentafluoride and more preferably treated with alkane at low temperature , e . g . - 30 ° to - 160 ° c .

the instant invention involves the use of a combination of preparatory steps in conjunction with mass spectroscopy and time - of - flight detection procedures to maximize the diversity of biopolymers which are verifiable within a particular sample . the cohort of biopolymers verified within such a sample is then viewed with reference to their ability to evidence at least one particular disease state ; thereby enabling a diagnostician to gain the ability to characterize either the presence or absence of at least one disease state relative to recognition of the presence and / or the absence of the biopolymer .

methods are disclosed in which a micelle is stabilized against degradation upon dilution . the micelle comprises molecules of a block polymer having a hydrophobic block and a hydrophilic block . the hydrophobic block forms a core of the micelle with corona from the hydrophilic block . the methods for stabilizing the core are by chemically cross - linking , incorporating a hydrophobic oil in the core to render it more hydrophobic and stable , and incorporating a cross - linked interpenetrating network of a stimuli - responsive hydrogel into the core . the hydrogel is responsive to any stimuli , but preferably temperature or ph . a substance such as , drugs , can be incorporated into the dense inner core of the micelles . when subjected to ultrasound , the micelles release the substance , and then reversibly revert to a stable dense core and re - encapsulating the substance when the ultrasound is turned off . by pulsing the ultrasound , it is therefore , to controllably release the substance in a pulsed manner corresponding to the ultrasound signal .

the invention is directed to a method of making carboxylated cellulose fibers whose fiber strength and degree of polymerization is not significantly sacrificed . the method involves the use of cyclic nitroxide free radical compounds as a primary oxidant and a hypohalite salt as a secondary oxidant in an aqueous environment . preferably the oxidized cellulose is then stabilized against d . p . loss in alkaline environments and color reversion with a reducing agent such as sodium borohydride . alternatively it may be treated with an oxidant such as sodium chlorite . the method results in a high percentage of carboxyl groups located at the fiber surface . the product is especially useful as a papermaking fiber where it contributes strength and has a higher attraction for cationic additives . the product is also useful as an additive to recycled fiber to increase strength . the method can be used to improve properties of either virgin or recycled fiber . it does not require high α - cellulose fiber but is suitable for regular market pulps .

a roller body having a shaft formed from a first thermoplastic material and defining at least one roller . the shaft is a single component injection - molded shaft . a casing at least partially encases the roller and is formed from a second thermoplastic material different from the first thermoplastic material . the casing is bonded to the roller by an injection - molding process .

in various aspects and embodiments , the present disclosure relates to the manner in which precursor materials are provided to processing equipment and , more specifically , to the manner in which precursor materials of organic polymers are delivered to systems for forming and , in some embodiments , depositing the organic polymers . in one aspect , the disclosure relates to precursor supplies , which comprise vehicles , such as binders , supports and cartridges , for delivering a precursor material to a material processing system , such as a deposition system or other processing equipment . in another aspect , the disclosure relates to material processing systems with which the precursor supplies are configured to be used . methods for preparing precursor supplies , using precursor supplies , providing process control , and recycling precursor supplies are also disclosed .

bioactive agents are delivered to a body site in need of the same by providing a first aliquot portion of a reaction mixture which includes an aldehydic polymer solution , and a second aliquot portion of a reaction which includes a cross - linking hydrazide and a bioactive agent . the first and second aliquot portions may be mixed to form the reaction mixture thereof . the thus formed reaction mixture may then be installed at the body site whereby the reaction mixture is allowed to solidify in situ within about 1 to 10 minutes into a reaction product comprised of a hydrazide cross - linked oxidized aldehydic polymer matrix with the bioactive agent entrapped therein .

the instant invention involves the use of a combination of preparatory steps in conjunction with mass spectroscopy and time - of - flight detection procedures to maximize the diversity of biopolymers which are verifiable within a particular sample . the cohort of biopolymers verified within such a sample is then viewed with reference to their ability to evidence at least one particular disease state ; thereby enabling a diagnostician to gain the ability to characterize either the presence or absence of said at least one disease state relative to recognition of the presence and / or the absence of said biopolymer , predict disease risk assessment , and develop therapeutic avenues against said disease .

articles produced from hydrophobic polymers are surface - coated with thin films of starch in order to render the surfaces hydrophilic . the thin coatings form on the surfaces of plastic objects when the objects are placed in contact with hot , aqueous solutions of starch . these starch coatings are extremely adherent to the hydrophobic plastic surfaces under both wet and dry conditions , and they permit the surfaces to be uniformly wet with water . resultant products have improved biocompatibility , improved compatibility with hydrophilic reagents , reduced build - up of electrostatic charge , reduced blocking , reduced friction , improved absorption of water - based dyes , and improved adhesion properties . the starch coatings are non - toxic , inexpensive and biodegradable .

a manually operated trigger sprayer is constructed with a reduced number of parts and in a novel manner in which all of the component parts of the sprayer are constructed of a plastic material . the construction of the trigger sprayer replaces the conventional metal coil spring in the pump chamber with a pair of plastic springs having inverted u - shaped configurations that are integral with the piston rod and are positioned outside the pump chamber . constructing all of the sprayer parts of a plastic material enables a cost efficient recycling of the parts , which does not require disassembling the parts to remove a metal spring .

a dual constituent container includes a compartment for liquids and an elongate inwardly directed recess open to the container exterior and isolated from the compartment . the container is formed by blow molding , using a mold that incorporates a shaping feature projected longitudinally into the mold cavity . the shaping feature incorporates an arrangement of longitudinal channels having a channel width such that when a thermoplastic preform is expanded into contact with the mold cavity walls and the shaping feature , portions of the expanded preform span the channels and cooperate with the channels to provide passages that accommodate pressurized air to facilitate separation of the expanded preform from the shaping feature . the same portions of the expanded preform can partially protrude into the channels , thus to form longitudinal ribs along the recess which aid in frictionally holding a secondary constituent .

an integrally molded plastic device for supporting and storing elongated strands such as decorative light strings , the frame comprising integral cord winding members , cooperatively aligned hook and slot - containing members , electrical plug retention members , and a centrally disposed handgrip member .

a once - a - day controlled release diltiazem formulation is described which includes : from 20 to 50 % by weight of enteric polymeric membrane coated pellets comprising a polymer membrane coated core which comprises a biologically inert core which is coated with a first layer which consists essentially of diltiazem and a polymeric binder ; and a second layer which comprises a membrane comprising a ph dependent polymeric material ; and from 50 % to 80 % by weight of delayed pulse polymeric membrane coated pellets comprising a polymeric membrane coated core which comprises a biologically inert core which is coated with a first layer which consists essentially of diltiazem and a polymeric binder and a second layer which comprises a polymeric membrane which will substantially maintain its integrity in the varying ph conditions of the gastrointestinal tract but is permeable to diltiazem ; and a unit dose containment system .

a thermal dye transfer assemblage comprising : a dye - donor element comprising a support having thereon sequentially repeating dye layer patches of a dye dispersed in a polymeric binder , at least one of the dye patches containing a pendant basic - substituted dye having the formula : a -. sub . m wherein : a represents a thermally transferable dye residue , l represents a divalent linking group , b represents a basic substituent , and m represents an integer of from 1 to 3 ; and a dye - receiving element comprising a support having thereon a polymeric dye image - receiving layer , the dye - receiving element being in a superposed relationship with the dye - donor element so that the dye layer is in contact with the polymeric dye image - receiving layer , the polymeric dye image - receiving layer containing a hydrated transition metal or metalloid salt of a strong acid .

a hemostatic biocidal dressing includes pro - coagulant and biocidal agents providing a physical barrier to bleeding as well as chemical action to promote blood coagulation and thereby arrest coverage . at the same time , biocidal properties of the dressing prevent the introduction of infected agents and the establishment of infection within wounded tissue . a silverized textile provides biocidal action while a granulated hemostatic agent disposed within interstitial regions between polymer fibers provides coagulating action .

an adhesive dispensing die module for mounting on a manifold incudes a die body having formed therein polymer and air flow passages , and a valve for selectively closing the polymer flow passage and a die tip or die nozzle detachably mounted on the die body . the die tip or die nozzle is secured to the die body by a pair of clamping members depending from the die body and adapted to engage die tip or die nozzle therebetween . the clamping members can selectively be moved toward one another to clampingly secure the die tip or die nozzle therebetween or moved away from one another to release the die tip or die nozzle , permitting it to be replaced without the need to remove the die module from the manifold .

the invention relates to a strain of enterococcus mundtii having probiotic qualities . the strain of e . mundtii produces an antimicrobial peptide which exhibits antimicrobial activity against a broad range of bacteria . the invention also provides an isolated nucleotide sequence which codes for the antimicrobial peptide . another aspect of the invention relates to a process for the production of a peptide of the invention which comprises cultivating enterococcus mundtii strain st4sa in a nutrient medium under micro - aerophilic conditions at a temperature of between 100 c . and 45 ° c ., until a recoverable quantity of said peptide is produced , and recovering said peptide . the isolated peptide of the invention may be used as an antimicrobial agent in a liquid formulation or a gel formulation as a topical treatment and may also be used as an antimicrobial agent following encapsulation in a polymer .

the disclosure relates to a method and apparatus for the application of zipper segments to opposite sides of a flat , form cut cardboard , paper or plastic card using double - sided adhesive tape . the card receives double - sided tape , and then zipper profiles are secured to the double - sided tape . alternately , the zipper profiles and double - sided tape may be joined together and then applied to the card . the card is then folded and used for the packing of pieces of chewing gum or similar applications .

reclosable bags , plastic film for making the bags , and a method and apparatus for making the bags are disclosed . the bag has a reclosable fastener connected to a single wall of the bag , and the film has a reclosable fastener connected to one side thereof which does not require attachment to any other portion of the film when making a bag . the fastener has a tamper - proof member attached thereto to indicate if the bag has been previously opened . the film can be wound into a roll suitable for use on conventional bag making machines including form , fill , and seal machines or a chain of coilable reclosable bags can be produced therefrom since the fasteners are connected to the web preferably transversely to the bags longitudinal formation axis . the method and apparatus for making the film includes supplying a continuous web of bag making material , feeding from a coil of continuous fastener material enough fastener material to make a single fastener , positioning , cutting , and attaching the fastener to the film , with a plurality of fasteners attached thereon .

a type of liquid chromatographic stationary phase and preparation method thereof , the bonding terminal of the chromatographic stationary phase is zwitterionic functional group . the preparation method includes the following steps , alkenyl or alkynyl silane is bonded onto the surface of silica based on the horizontal polymerization approach to obtain alkenyl - or alkynyl - modified silica . then the thiol click reaction with zwitterionic compound containing thiol group is performed to obtain the zwitterionic hydrophilic interaction chromatographic stationary phase . the present stationary phase possesses both zwitterionic characteristics and excellent hydrophilicity . it can be widely applied in the separation of variety of samples .

provided is a method for enhancing the production of polyhydroxyalkanoic acid from microorganism strains by disrupting a gene associated with the production of an exobiopolymer in the pseudomonas strain to redirect the carbon flux toward the production of the polyhydroxyalkanoic acid , thereby enhancing the production of the polyhydroxyalkanoic acid .

a priorly used drop wire having a single layer of pvc insulating compound , containing a relatively - expensive epoxy additive , extruded over a spaced pair of conductors , having relatively rough surfaces , is replaced with drop wire having less - costly , relatively - smooth , drawn , conductors onto which spaced , unplasticized particles of pvc resin are coated and the portions of the particles contacting the surfaces of the conductors are melted , caused to undergo controlled degradation and adhere to the surface of the conductor , and thus form a relatively - stable , texturized , discontinuous coating of adhesion sites on the surfaces of the conductors with interdispersed portions of the surfaces being exposed . over the precoated conductors , a composition containing a plasticized pvc resin may be extruded to form an insulating covering having a relatively - stable , controlled - degree of adhesion to the adhesion sites and the interdispersed , exposed surfaces of the conductors . a precoated metallic member having a texturized , discontinuous coating of degradated , unplasticized plastic adhesion sites formed on selected portions of the surface of the metallic member may be used as an article of manufacture onto which an adherent coating of compound containing plasticized plastic may be molded to make other items such as plastic - coated fencing material or aluminum siding .

apparatus for injection molding plastic parts . the method includes the step of melting and pressurizing plastic material , directing the molten pressurized plastic material into passages leading to a mold , a selectively opening shut - off valve disposed along the passages , selectively closing the shut - off valve after a predetermined amount of molten pressurized plastic material has entered the mold and cooling the predetermined amount of molten pressurized plastic material in the mold to form a part . the apparatus includes an extruder providing pressurized molten plastic material , a mold adjacent the extruder , passages interconnecting the extruder with the mold , and a selectively operable shut - off valve disposed along the passage .

a valve gate system for an injection molding machine , having a valve gate unit configured to be in contact with a manifold of an injection molding machine for delivering a molten plastic flow from a hot runner system to an injection chamber . the valve gate unit has a valve pin for controlling the flow of the molten plastic from a hot runner system to an injection chamber and an activating unit coupled with the valve gate unit . the activating unit is configured to be mounted external to a mold unit that houses the injection chamber . in addition , the activating unit has an element that extends through the mold unit to engage the valve pin , so as to control the molten plastic flow from a runner system to an injection chamber .

the invention is an adjustable container holder assembly that attaches to the sidewall of a pickup box above the fender well , for holding one or more liquid containers . the adjustable container holder assembly is best suited for square jugs with the opening and handle on the top , where such jugs are fabricated from plastic . the container holder assembly holds the containers above the bed of the box in an area that is of limited use due to obstruction by the fender wells . the placement of the container holder assembly adjacent to the sidewall provides easy access to the containers from outside the pickup box . the rack also protects the containers from damage by other implements that are often transported in the box bed of the pickup truck .

a method for producing a composite construction element is disclosed . in one embodiment , the method includes the steps of : a ) providing a composite construction element , which comprises a thermoplastic core layer between two fiber - reinforced thermoplastic cover layers ; b ) providing one or more interruptions in a fiber - reinforced thermoplastic cover layer of the panel ; c ) positioning a fiber - reinforced thermoplastic reinforcing layer over and / or near the interruption ; d ) deforming at least the edges situated along the interruption and , if desired , the thermoplastic reinforcing layer , preferably while simultaneously locally compacting the core layer , so that a thermoplastic construction element having a recess which is delimited by fiber - reinforced thermoplastic walls is obtained .

a sterilization process that preserves the mechanical properties of dilatation balloons and balloon catheters manufactured from polymers susceptible to the degradation reactions induced by ionizing radiation . the advantages of the sterilization process contemplated by this invention results from a reduced oxygen environment during sterilization , thereby preventing the degeneration process initiated in polymers during irradiation . additionally , a balloon or balloon dilatation catheter sterilized by the process of the invention is provided .