Datasets:

cwinkler

/

patents_green_plastics

like 1

a biodegradable microfiber absorbent comprises a substantially homogeneous mixture of at least one hydrophilic polymer and at least one biodegradable polymer . the absorbent can be prepared by an electro hydrodynamic spinning of a substantially homogeneous polymer mixture . medical dressings for burns and wounds , cavity dressings , drug delivery patches , face masks , implants , drug carriers that comprises at least one microfiber electrospun from a polymer mixture are provided . the dressings can have variable water vapor penetration characteristics and variable biodegradation times .

the present invention relating to an exothermic decomposition has , as essential components , a water absorptive polymer and / or tackifier , carbon component and / or metal chloride and features that the product is as a whole ink - like or cream - like .

this invention relates to the manufacture of flexible porous plastic irrigation and aeration pipe having an essentially uniform porosity throughout its length . the process for making the porous pipe includes volumetrically delivering to a mixing hopper for preblending thermoset polymer particles and a thermoplastic binder for the particles , preblending the components in the hopper , volumetrically feeding from the hopper the preblended components for controlled discharge into an extruder , and extruding the preblended components to produce the porous plastic pipe .

a matrix for plastic letterpress printing plates and the method of formation thereof are presented wherein the matrix material prior to molding is thicker than the desired molded matrix . the &# 34 ; non - printing &# 34 ; areas of the matrix are compressed to at least seventy percent of the density of the compressed &# 34 ; printing areas &# 34 ; in forming the matrix , and the matrix may then be ground to desired thickness to obtain desired heat transfer characteristics .

a sanitary slider valve shown specifically as a rotary carousel diaphragm valve which has a thermoplastic elastomeric diaphragm integrally molded to form the multiple sealing ports of the rotor / stator interface is described . ports or grooves molded into the face of the elastomeric diaphragm are positioned to sealably engage grooves or ports in the stator face , and to form sanitary elastomeric tubular ducts leading through the body of the rotor or of the stator , terminating as elastomeric flanges . these flanges permit direct connection to sanitary flared piping flanges within the carousel which lead to and from multiple columns or other solid phase bed segments , or to sanitary flared piping flanges connecting the stator to piping interconnecting the multiple carousel columns to each other and to external supply and collection lines . sanitary operation is made operable by energized flexible diaphragm wiping lip seals which maintain fluid - tight sealing engagement with the opposing face even when the rotor is lifted off the stator far enough to permit cross flushing of the port sealing faces with sanitizing fluid . the valve permits sanitary operation of advanced chromatographic separations of biopharmaceuticals , including simulated moving bed chromatography .

a bag for receiving refuse may comprise a bag body , the bag body including an inside surface , an outside surface , and a rim defining a mouth . the bag may further comprise a first strip of material disposed on the inside surface of the bag body proximate the rim . the bag has an integrated polymer liner layer and is formed of a pair of valley folds and a pair of mountain folds .

a lipid or other hydrophobic or amphiphilic compound is integrated into a polymeric matrix for drug delivery to alter drug release kinetics . in embodiments where the drug is water soluble , the drug is released over longer periods of time as compared to release from the polymeric matrix not incorporating the hydrophobic compound into the polymeric material . in contrast to methods in which a surfactant or lipid is added as an excipient , the hydrophobic compound is actually integrated into the polymeric matrix , thereby modifying the diffusion of water into the microparticle and diffusion of solubilized drug out of the matrix . the integrated hydrophobic compound also prolongs degradation of hydrolytically unstable polymers forming the matrix , further delaying release of encapsulated drug .

the invention provides compounds of formula : and salts thereof , wherein x and y have any of the values defined herein . the compounds inhibit bacterial rna polymerase , inhibit bacterial growth , and have applications in , analysis of rna polymerase structure and function , control of bacterial gene expression , control of bacterial growth , antibacterial chemistry , antibacterial therapy , and drug discovery .

localized delivery of 1 , 25 d 3 directly to a target area using biodegradable polymeric matrices maximizes the efficacy of this drug while minimizing systemic exposure and toxicity . anticalcemic analogs of 1 , 25 d 3 have also been incorporated into controlled release polymer formulations to achieve efficacious intracranial concentrations of 1 , 25 d 3 analogs for the treatment of intracranial tumors as well as neurodegenerative disorders such as alzheimer &# 39 ; s disease as well as to maximize the efficacy of these analogs in the treatment of systemic malignancies . the therapeutic efficacy of these formulations was demonstrated through a variety of studies in vitro and in vivo . hybrid analogs of 1 , 25 d 3 were incorporated into biodegradable polymer wafers composed of a polyanhydride copolymer of 1 , 3 - bispropane and sebacic acid in a 20 : 80 molar ratio . in addition to providing improved treatments for malignancies and neurodegenerative disorders . the spatial localization and high reproducibility of this controlled delivery methodology presents a unique opportunity to study in vivo the poorly understood mechanisms of 1 , 25 d 3 &# 39 ; s antiangiogenic , antiproliferative , and transcriptional regulating activities .

the invention concerns a process for producing corrugated board , wherein a biopolymer latex adhesive is used as the corrugating adhesive . the biopolymer latex adhesive can be obtained by extruding a plasticized biopolymer , especially starch , in the presence of a crosslinking agent such as glyoxal . the preparation of the latex adhesive and its application in corrugating operation do not require a gelatinization step , nor the use of caustic soda or borax .

the invention relates a powder material consisting of coated particles for a powder - based rapid generative prototyping methods , in particular by compressing a 3d binder . said powder material consists of individual plastic , metal and / or ceramic particles and / or granules . a coating essentially consists of an adhesive agent which can be activated by a liquid binder , light or laser light , and of sinterable or glass - forming fine - grained material . said invention also relates to a method for compressing 3d binder with the aid of an organic solvent having a water content less than 45 % and to sintered bodies , in particular for moulding or precision mechanical engineering , which are fixed to each other by sintering or glass formation from a fine grained material .

a method of forming a metal - thermoplastic polymer - metal laminate into a desired shape comprising the steps of : heating a metal - thermoplastic polymer - metal laminate to a temperature exceeding the melting temperature of the thermoplastic polymer ; forming the heated laminate into a desired shape ; and cooling the formed laminate . a method of making a cassette comprising the steps of : providing a front panel and a back panel with at least the front panel formed from a shaped metal - thermoplastic polymer - metal laminate ; joining the panels so that a cavity exists between them ; positioning at least one intensifying screen between the panels , the screen adapted to contact an x - ray film placed in the cassette , such that the shaped laminate panel presses the screen and film in intimate contact ; wherein the metal - thermoplastic polymer - metal laminate panel is formed into a desired shape by the steps of : heating a metal - thermoplastic polymer - metal laminate to a temperature exceeding the melting temperature of the thermoplastic polymer ; forming the heated laminate into a desired shape ; and cooling the formed laminate .

a sterile package of weldable plastic foil , has a sealing welding seam , joining two mutually opposite portions of said foil , interrupted by a disc shaped valve element of gas pervious material disposed between said portions and defining at least one through hole .

an inner ring is fitted on one - end side of an inner shaft and fixed to the inner shaft by caulking . during the caulking , the inner shaft is supported by a caulking receiving jig . a receiving section to which the jig is in contact is provided at a position near the one - end side of the inner shaft , for example , at a position nearer to the inner ring than a raceway section formed on the outer periphery on the other side of the inner shaft . as a result , a caulking load acting from a caulking jig on the inner shaft plastically deforms only a desired portion .

a taping knife which includes a blade with an elongated handle secured to the blade . the plastic handle includes a durable inner member and a grippable outer core . the hollow inner member is formed from adjoining member halves which have an inner structural support network of ribs . the handle component parts sealably interlock and are secured together upon formation of the outer grippable core whose material flows into certain ribbed network compartments and secures the interlocking parts together .

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 .

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 .

active decompression to prevent melt drool from a mold or runner system is achieved through the selective coupling and de - coupling of an injection piston to a plunger . following successive injection and hold phases of an injection molding process , the runner and channel system is partially de - compressed by drawing back together , over a short distance , the plunger and the injection pressure as one unit . the injection piston is then mechanically de - coupled from the plunger , with the injection piston withdrawn to essentially its final shot position , but minus a customary packing distance . plastic melt , extruded into a shooting pot positioned in front of the plunger , is permitted to push the plunger backwards , but now with minimal work expenditure . when the plunger again contacts the injection piston , melt pressure now causes both units to be moved back to reach a final shot size volume . finally , the injection piston drives the plunger forward to eject melt accumulated within the shooting pot .

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 process for preparing assymetric polyvinylidene fluoride microporous membranes using novel pore forming agents of an ammonium salt which is a non - solvent for the polymeric casting solution ; such agents for example being ammonium hydroxide , ammonium chloride and the like .

a traversed package is formed from a tape which is slit from a laminate composed of a metallic foil layer and a dielectric insulating layer of plastic film , with a longitudinal edge or edges thereof folded back against the surface of the tape . the packaged tape can be applied to twisting conductors in a cabling process either helically or longitudinally with the folded edge or edges preventing the foil layer from electrical contact with adjacent conductors or shields .

a gas bag module for a vehicle occupant restraint device comprises a gas bag and a discharge arrangement in fluid connection with said gas bag . the discharge arrangement has a discharge opening , through which gas can escape from the gas bag , and at least one element made of an electrically activatable polymer actuator to expose and / or alter the discharge opening upon activation of said polymer actuator .

a process is provided for making thermoplastic - composites from recycled thermoplastics together with phosphogypsum waste by - product from the phosphate fertilizer wet process or , in an equally preferred embodiment with fluorogypsum waste by - product from fluorine production wet process to produce lumber profiles . the process involves admixing phosphogypsum and / or fluorogypsum waste byproduct and / or flue gas desulfurization gypsum and / or crude gypsum and / or calcined gypsum with thermoplastics and a functionalized compound with or without coupling agents to produce a filled thermoplastic - composite composition , and melt processing the composition to produce a filled thermoplastic - composite article . the articles are preferably in the form of railroad cross ties or construction articles such as common lumber profiles , panels , tiles , poles , utility poles , crossarms for utility poles , roofing tiles , pipeline skids , pilings , marine fender - piles , bulkheads , revetments , and are useful for constructing various structures , such as oilfield board roads and equipment mats . the process avoids the accumulation of undesired phosphogypsum / fluorogypsum “ stacks ” and provides environmentally friendly useful products which require no chemical preservatives to prevent insect infestation or decay from the elements . tailings from ore processing can also be used as a filler .

application of carbon fiber reinforced polymer structures to metal vehicle wheels is effective in reducing the mass of the wheel while retaining suitable stiffness in the wheel structure . for maximum effect the reinforced polymer structure and the metal wheel must operate cooperatively . because of the wide range of operating temperatures experienced by wheels and the large difference in coefficient of thermal expansion between metals and carbon fiber reinforced composites attachment of the polymer structure to the wheel by adhesive alone is problematical . however a wheel with an effective and durable reinforcement may be fabricated by confining , through mechanical interference , the reinforced polymer in a cavity in or on the spoke and by preheating the wheel before curing the polymer .

a method of molding a plastic part comprising supporting first and second mold sections so as to define a mold cavity , placing a flexible sheet over the second mold section , and forming a vacuum chamber utilizing the flexible sheet with at least the second mold section being in the vacuum chamber . air passages are provided between the flexible sheet and the second mold section . the air pressure within the vacuum chamber is reduced to less than ambient to create differential pressure across the flexible sheet to hold the second mold section in position . plastic material is pumped into the mold cavity . after the plastic sets , the second mold section is removed .

a microfluidic system , particularly suited as a cell culture system , is provided having a single monolithic biocompatible substrate with both a surface having an ordered array of nano - scale elements required for plasmonic response monitoring and a network of microchannels for precisely controlling cellular environment . the system has the additional advantages of low - volume consumption , rapid low - cost fabrication of molds with easily interchangeable microfluidic channel layouts , amenability to mass production , and in situ label - free real - time detection of cellular response , viability , behavior and biomolecular binding using plasmonic techniques . a ratio of greater than 0 . 2 between the cross - sectional dimension and the spacing distance of the nano - scale elements is useful for plasmonic response monitoring . a process for producing such a system involves fabrication of a master mold containing the nano - scale elements etched into a hard substrate , and the micro - scale and meso - scale features , such as channels and chambers , provided in a soft membrane bonded to the hard substrate . a stamp may be created by setting a settable liquid polymer or metal placed in the master mold and then the features of the intended device transferred to a polymeric substrate using the stamp .

tissue engineering is a growing field where new materials are being developed for implantation into the body . one important area involves bone graft materials to replace areas of bone lost to trauma or disease . traditionally , graft material may be harvested from the bone of the individual receiving the graft material . however , this requires an additional surgery and additional recovery . bone also may be taken from others , or even cadavers , but this introduces biocompatibility problems as well as the risk of disease transfer . ideally , a biocompatible material is sought that will act as a filler with appropriate mechanical strength , encourage bone healing , and degrade to allow new bone ingrowth without the risk of disease transfer . the present invention is a new composite bone graft material made from biocompatible poly and nano - sized hydroxyapatite particles exposed on its surface using a gas foaming particle leaching method . a further embodiment of this invention involves coating this plga / hydroxyapatite biomaterial with an adherent , fast , uniform coating of a mineral such as apatite . the plga polymer portion of the composite provides sufficient mechanical strength to replace bone and is degradable over time to allow new bone tissue ingrowth . the incorporated hydroxyapatite particles increase the composite material &# 39 ; s osteogenic properties by providing sites for tissue attachment and propagation . finally , a uniform coating of mineral apatite on the surface of this novel biomaterial composite further enhances its osteogenic qualities .

nanoporous polymers with gyroid nanochannels can be fabricated from the self - assembly of degradable block copolymer , polystyrene - b - poly , followed by the hydrolysis of plla blocks . a well - defined nanohybrid material with sio 2 gyroid nanostructure in a ps matrix can be obtained using the nanoporous ps as a template for the sol - gel reaction . after subsequent uv degradation of the ps matrix , a highly porous inorganic gyroid network remains , yielding a single - component material with an exceptionally low refractive index .

a corrugated , thin walled plastic tank is ideally suited for subterranean storage and transmission of sewage and other materials . the tank has a bottom wall which terminates in a peripheral edge disposed in a horizontal plane . a corrugated , peripheral wall extends upward from the peripheral edge to an apex area . the corrguations of the peripheral wall include alternating crown and root portions . a peripheral rib extending circumferentially around the peripheral wall is defined by a plurality of rib portions which are disposed in the root portions of the corrugations . each rib portion has a rib outer portion which is substantially flush with the adjoining crown portions and rib side portions which extend from the rib outer portion into the adjacent root portion . an indentation area is formed by enlarging one of the root portions . an annular sleeve depends from the indentation area into the interior of the tank to provide a fluid access with the interior of the tank . an annular rim is disposed in the apex area surrounding another opening for providing access to the interior of the tank .

the invention relates to a novel biodegradable material prepared from pha and pla polymers , which can be used for manufacturing a blended product of pha and pla , and which can have accelerated biodegradation in a microorganic environment . the new product can be used for producing films , containers for solids and liquids , rigid or flexible packages , long - filament and short - fibre weaving , knitting and nonwoven fabrics , and composite products of fabrics , films and other materials by thermal forming , injection moulding or melt spinning . these blends also can have a long shelf life in a clean environment .

an improved drop dispenser for use with a closed compressible container , which dispenser is comprised of a small diameter tubular dispenser member of a resilient plastic material deformed at the free end thereof to provide a normally closed , integral valve - like arrangement , which valve - like arrangement is pressure actuated and partially opens when pressure within the container increases .

a new class of solid solvents selected from adipamides , bisacetamides , biscarbamates , and dibenzamides has been found effective to reduce the melt viscosity of certain block copolymers while not substantially adversely affecting the mechanical properties of the block copolymer when both block copolymer and solid solvent are below their melt temperature . the block copolymers can be polyether - polyurethane block copolymers , polyester - polyurethane block copolymers , polyester - polyether block copolymers , polyamide polyether , or polyamide polyester . the combination is especially useful as an adhesive , as the adhesive component for fabric laminates or as the adhesive for seam sealing tapes .

the invention relates to a multi - layered thermoplastic container 1 opened by the partial peeling back of a multi - layer top 6 which has been heat - sealed onto the edge 3 of the container 1 including a peeling tab 7 . the peeling tab 7 has a scalloped area cut into its edge 3 in such a way as to delimit a grip cavity which is open toward the side of the top 6 and of the edge 3 , and , facing the area where the internal sheet 9 of the top 6 and the internal layer 4 of the container 1 meet . the intermediate sheet 10 has a tearing edge enabling the internal sheet 9 to be torn .

methods and techniques to increase the reliability of detecting virus infections , particularly lymphotropism , to eliminate false negative reactions in testing blood for the presence of lymphotropic viruses during enzyme immunoassay and polymerase chain reaction testing , and to better detect viruses with lymphotropism in biological materials having a concentration of virus particles lower than the sensitivity threshold of existing eia and pcr methods , thereby making the techniques of the present invention more reliable .

a nitrile - containing material is bonded to the surface of a rubber substrate in order to increase the wettability of the surface . a rubber substrate is placed in the afterglow region of an electrodeless glow - discharge chamber . a nitrile - containing material such as an acrylonitrile monomer is introduced into the chamber , causing the monomer to polymerize and bond to the surface of the rubber substrate . in one embodiment , the surface of the rubber is etched with sulfuric acid prior to bonding the nitrile - containing material to the surface .

the shelf liner is a multi - layered thermoplastic composite sheet of consistent thickness , with a non - slip bottom side and a decorative top side . a decorative top sheet is fused to a top surface of a substrate layer . the substrate layer comprises a nonwoven fabric or material that is coated on both sides , and can be fully impregnated , with a foamed plasticized polyvinyl chloride . the foamed plasticized polyvinyl chloride coating on the bottom side of the substrate layer gives the shelf liner a non - slip characteristic . an interlayer of polyvinyl chloride plastisol is disposed between the top sheet and the substrate to enhance the fused bonding of the layers . a bottom surface of the substrate layer may be fully or partly covered with a bottom coating to modify the non - slip nature of the shelf liner .

the present invention relates to development of paint , plaster , cement and plastic construction materials containing silver , zinc and copper metal ion - charged zeolite . the new construction materials are antimicrobial and prevent microorganism growth and reproduction of fungi , yeasts and bacteria . the product , made from construction materials containing metallic ion - exchanged zeolite , provides hygiene by preventing microbial contamination in areas and surfaces for a long time . furthermore , lifespan of the materials produced with this technology is longer since they will be protected from biological deterioration , corrosion and decays .

process and device for cooling a tubular sleeve produced by hot extrusion - blowing of a thermoplastic material through an annular die . in the process , a stream of primary air is flowed under pressure substantially parallel to and spaced from the tubular sleeve and reaches the tubular sleeve at a second stage . the stream of primary air induces a stream of secondary air which flows substantially parallel and proximate to the tubular sleeve at a first stage and whose flow is substantially laminar over most of its path . the device includes a first cylindrical sleeve member that , in combination with the tubular sleeve , defines a secondary air flow space . a second cyclindrical sleeve member and the first sleeve member define a primary air flow space therebetween . a cylindrical ring disposed proximate to the annular die directs air into the secondary air flow space . a source of pressurized air is in flow communication with the primary air flow space .

a decorative laminate surface layer composition is prepared by selectively applying dissimilar thermoset or thermoplastic polymers to a decorative laminate facing sheet to achieve a brillant visual or pearlescent appearance .

the invention relates to water - insoluble , bacteriophobic and optionally cell proliferation - inhibiting polymers obtainable by free - radical polymerization of at least one monomer of the general formula r — a , in which r is an aliphatically unsaturated organic radical with the valence a , a is a carboxyl group — cooh , sulfuric acid group — oso 2 oh , sulfonic acid group — so 3 h , phosphoric acid group — opo 2 , phosphonic acid group — po 2 , phosphorous acid group — op 2 , a phenolic hydroxyl group or a salt of one of the groups , and a is 1 , 2 or 3 , with the proviso that , if the monomer of the formula i contains a carboxyl group — cooh or a carboxylate group , either this monomer contains at least one further radical a having a different one of the definitions specified for a , or at least one further monomer of the formula i is also used in which a has a different one of the definitions specified for a ; and at least one other aliphatically unsaturated monomer , wherein the polymers are useful for forming bacteriophobic or cell proliferation - inhibiting articles .

honeycomb extrudate is made by extruding a plasticized ceramic - forming batch material to form a length of wet honeycomb extrudate , transferring the extrudate to a support tray , and transferring the tray and extrudate to a dryer , the tray being capable of contactingly supporting greater than one - third of the circumferential surface of the wet extrudate . the extrudate is subject to reduced handling damage , e . g . from forces of gravitational and / or lateral acceleration arising during transfer .

polyurethane article black colorants which comprise a novel blue polymeric anthraquinone colorant , rather than the previous standard polymeric triphenylmethane blue - type colorants are provided . such a novel blend of colorants to produce black colorations within the target polyurethane foams exhibits very low color degradation within polyurethane foams , primarily due to the stability and resiliency of the novel anthraquinone - based polymeric colorant in the presence of high isocyanate levels , as well as large amounts of reactive tertiary amines . a black colorant comprising such a novel blue polymeric colorant , as well as polyurethane foams comprising such a novel black coloring agent and methods of producing such foams are all contemplated within this invention .

an alternating copolymer comprising a backbone of residues of a maleic anhydride derivative and those of a compound containing vinylic unsaturation , which also comprises residues of an active compound containing a nucleophilic group , bound to the backbone by a residue of the nucleophilic group , including such a copolymer comprising residues of an active compound containing an alcohol , thiol or amine group . the chemical and biological properties of actives , such as protease inhibitors , neurotransmitter drugs , and other small molecule active drugs , are enhanced , and new applications enabled . also , artefacts , including a solid medical implant device , dressing or scaffold or a fluid adhesive or medicinal composition comprising such a polymer , and a method of use of such a polymer , including a method for the treatment or prophylaxis of wounds .

an in situ film - forming methyl acetate - based solution of at least one absorbable , segmented block copolymer with amorphous and semi - crystalline segments contains at least one bioactive agent which exhibits antimicrobial , anti - inflammatory , antiviral , anesthetic , hemostatic , and / or antineoplastic activity . the absorbable polymers can be a polyaxial copolyester , polyether - ester and polyether - ester urethane . the solution can be applied onto animal and human skin or accessible body cavities to prevent or treat one or more disorders preventable or treatable by the bioactive agent therein .

a machine for making plastic bags from plastic film utilizes a rotatable drum having an adjustable diameter . the drum is constructed of a plurality of slats and includes a gear mechanism adapted for infinite variation of the drum diameter between a first smaller diameter and second larger diameter . a sealing blanket is provided for the drum and is automatically adjusted for different drum diameters to provide proper tension of the film as it passes around the expandable drum . the gear mechanism is operated manually or automatically by a motor mounted in the drum and can alter the drum diameter while the machine is running . a chill roll , a rotary handle hole punching unit , a perforator / cutter station and phase variators are also included . when the machine is used to make bags having printed material thereon , a comparator unit may also be used . the comparator unit uses an electric eye adjacent the drum to determine the spacing between activated sealing bars and an optical reader to determine the spacing between printing on the film . a mocroprocessor system compares these measured spacings to a preselected spacing interval . the microprocessor system activates the drum motor to adjust the spacing between heat seals and printed matter on the bag . the machine checks spacing on an ongoing basis to maintain proper spacing .

a bicycle stand is disclosed for supporting a bicycle or bicycles in an upright position . the bicycle stand comprises a molded or formed plastic body comprising either a hollow container with a flat undersurface and a fill - plug and cap on the upper surface or a seat surrounding the perimeter of the base of the stand with receptacles for ballast on the upper surface . the hollow container or receptacles are capable for receiving and containing a ballast material , such as sand , water , decorative stone , earth or cement . the stand is provided on its upper surface with one or more grooves of appropriate dimension for receiving the wheel of a bicycle or wheels of a plurality of bicycles .

a one - piece razor handle molded from resilient plastic has spaced - apart opposing side walls joined at an intermediate location by a neck . the walls diverge upwardly from the neck into upper portions for gripping a blade cartridge , and extend downwardly to a spacer that extends between the lower portions of the wall . the lower portions of the walls , between the neck and spacer , are resiliently squeezable . the neck acts as a fulcrum so that the upper portions pivot outwardly as the lower portions are squeezed inwardly . a base joins the bottoms of the walls extending past the spacer .

a riddle is provided with a molded plastic rim having integral upper and lower thickened flanges and a screen with a downwardly extending peripheral edge that is received within a recess in the lower flange and wherein the recess is so configured , arranged and dimensioned to accept cement deposited therein for positively locking the screen to the lower flange of the rim .

a preformed web and a method of producing dunnage units from the preformed web . the web is an elongate flattened thermoplastic tube having an inflation edge and an opposite edge . the tube includes spaced transverse seals that define sides of pouches . in one embodiment , the web is configured such that a gap forms between each pair of adjacent pouches when the pouches are inflated . in one embodiment , an inflation edge of the web comprises a frangible connection that allows the inflation edge to be broken by an unsharpened object .

the present invention comprises a method of providing a polymeric based compost bag formed with a relatively high percentage of thermal oxidative degradation catalyst , such as a transition metal salt , and , preferably , a process stabilizer . the stabilizer permits the use of high levels of the thermal oxidative degradation catalyst without the risk of premature accelerated degradation during manufacturing and storing . according to the present invention , the compost bags are packaged in containers which are impervious to gases and vapors thus depriving the pro - oxidant of the oxygen necessary to degrade the polymer . the package may also provide a barrier to the loss of stabilizer during storage . also disclosed is a kit for the disposal of waste .

a kit for forming a bioerodible composition is provided with a first aliquot portion of a reaction mixture having an aldehydic polymer solution , and a second aliquot portion of a reaction mixture having solids which include a cross - linking hydrazide . when mixed , the first and second aliquot portions of the reaction mixture react at a ph of 4 to 6 to form a solidified bioerodible composition within about 1 to about 10 minutes , to form a hydrazide cross - linked aldehydic polymer matrix . the bioerodable composition may be usefully employed to seal and / or treat wounds .

a container closure assembly and method for providing same . the container has an access opening and a container rim surrounding the access opening . a plastic cap covers the access opening and includes an upper portion , a skirt depending from the upper portion and circumferentially covering the container rim , and a tamper ring depending from said skirt , wherein the tamper ring is preferably connected to the skirt by a plurality of tabs separated by open portions , whereby the tamper ring is disengaged from the skirt by twisting the cap and breaking the tabs . the tabs comprise a crystallized , brittle portion , whereby breaking the tabs is facilitated .

empirically determined models allow the predetermination of the accurate amount and quality of modified zeolite required to produce textile articles having a specific degree of antibacterial activity in accordance with the requirements for particular applications . equations accurately predict the relationship between the amount and spatial orientation of modified - zeolite - containing polymers or fibers and the desired degree of antibacterial activity .

a preferred embodiment of the present invention provides a method and system for building cost - efficient biocompatible hydrogel constructs using stereolithography . hydrogel constructs may be used in , for example , multi - lumen nerve regeneration conduits and other tissue engineering scaffolds with embedded channel architecture that facilitate tissue regeneration through possible incorporation of precisely located bioactive agents , cells , and other desired inert and / or active chemical agents and devices . another preferred embodiment of the present invention provides a method of fabricating a hydrogel construct comprising : solidifying a first solution into a first construct layer with a first energy dosage using stereolithography , the first solution comprising : a first polymer ; and a first photoinitiator , wherein the first polymer and first photoinitiator are of a first concentration .

catalysts useful for epoxidizing olefins are disclosed . the catalysts comprise a vinylpyridine polymer and a titanium zeolite . preferably , the vinylpyridine polymer encapsulates the titanium zeolite . the catalysts are easy to prepare and use , they are easy to recover and reuse , and they convert olefins to epoxides in good yields with high selectivity . surprisingly , ring - opening reactions that form glycol or glycol ether by - products are minimized by using the vinylpyridine polymer - containing catalysts . the catalysts are valuable for making propylene oxide from propylene and hydrogen peroxide . vinylpyridine polymer - encapsulated transition metals and their use to produce hydrogen peroxide from hydrogen and oxygen is also disclosed .

a process for producing a highly uniaxially oriented film is disclosed , comprising supporting a composition comprising two or more liquid crystal monomers displaying a nematic or smectic state and having a polymerizable functional group in the molecule thereof and a photopolymerization initiator on or between a support or supports having been subjected to orientation , and irradiating said composition with radiation while maintaining said composition in a liquid crystal state to cause polymerization of said composition . the resulting film is free from pinholes , strain or unevenness and is excellent in optical transparency .

a bio - compatible and bioresorbable stent is disclosed that is intended to restore or maintain patency following surgical procedures , traumatic injury or stricture formation . the stent is composed of a blend of at least two polymers that is either extruded as a monofilament then woven into a braid - like embodiment , or injection molded or extruded as a tube with fenestrations in the wall . methods for manufacturing the stent are also disclosed .

an automatic razor blade sharpener simultaneously sharpens and sanitizes multiple edges of a spring - loaded disposable razor blade cartridge without edge overheating by lubricated gentle contact of the blade edges with a moving rubber or polymeric compliant belt that is motor driven . the disposable razor blade handle is set in a cradle aperture , which is spring loaded against the moving belt . a sanitizing and lubricating liquid is dispersed from a container between the razor blade edges and the moving belt forms a thin liquid layer on the belt surface . the liquid layer is illuminated by transversely located light illuminator and the reflected light is received by a transversely located sensor . deep grooves in the blade cutting edge reduce this reflection , indicating an overly worn blade . the absence of reflection actuates an led , informing the user that the thin liquid film has evaporated or spilled out , or that the container lacks a sufficient quantity of sanitizing and lubricating liquid .

this invention relates to an air conveyor for conveying articles with a collar and a head arranged above that , in particular plastic bottles along a conveyor channel having two carrying strips arranged along the conveyor channel on which the articles are conveyed by suspending them from the collars , and having a head space having inclined side walls formed above the carrying strips . air nozzles , which act upon the heads of the articles , are provided in the inclined side walls . this counteracts a tendency of the articles to become tilted or jammed together .

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 .

thermoplastic structural components utilized within building construction as permanent formwork . the components formed with openings along a length which serve to allow concrete to flow from one form to adjacent forms . thus , filling the components forming a surrounding wall of a building . the openings allow for air circulation within components forming a roof assembly . the components are co - extruded with a protective skin along outer surfaces thereof . grooves are provided along the length of the component for mating with interlocking flanges of a box connector . planar spaced walls are provided within each component and have a series of openings along a length thereof .

fluoropolymers , specifically polyvinylidene fluoride polymers stabilized against color degradation due to high thermal exposure . the fluoropolymers are produced with free - radical initiators in the presence of surfactants containing acid end groups . the fluoropolymer resins are melt processed into final articles at high temperatures , above the melting point of the polymer . while the fluoropolymer is stable , residual acid surfactant causes discoloration during thermal processing . stabilization is achieved by the addition of small amounts of ammonium or phosphonium cations to the fluoropolymer composition . it is believed the cations react with any residual acid to form a less reactive salt . these salts do not adversely affect the color of a melt processed product . the phosphonium or ammonium ions can be added to the fluoropolymer at any point from the polymerization step up to the thermal processing step . a preferred family of salts are quaternary alkyl ammonium halides .

the invention relates to a biodegradable halogen - free flame retardants composition used for fire - safety and prevention , that limits and extinguishes fires by means of increased resistance to ignition , slowing down burning rates and the rate of heat , smoke and toxic gas release from polymers with different physical and chemical properties and structure , such as textiles , wooden materials , paper , cardboard , corrugated board , leather , cellular polystyrene , foamed polyurethane , and items made of them . the composition according to the invention contains orthophosphoric acid , urea , triethanolamine , ammonia water , polydimethylsiloxane , surfactant , which may be anionic , cationic , amphoteric , non - ionic or mixtures thereof and water .

a biocompatible polymeric composition for cross - linking in - situ in a wound is disclosed comprising 1 ) one or more polyanionic polymers such as alginates or hyaluronates , able to be cross - linked the surface of the wound and 2 ) one or more polycationic polymers such as chitosan or deae - dextran , that assists in the solidification process as well as speeds up hemostasis without the need for applying pressure . the biocompatible polymeric composition may further comprise a cross - linking agent such as aqueous calcium chloride . the invention encompasses an initial polymeric composition , the solidified matrix cross - linked and integrated at the wound site , including the methods of using , applying , and cross - linking the composition .

biodegradable and resorbable polymer pouches are described for use with cardiac rhythm management devices and other implantable medical devices , i . e ., a pouch , covering , or other receptacle capable of encasing , surrounding and / or holding the crm or other imd for the purpose of securing it in position , inhibiting or reducing bacterial growth , providing pain relief and / or inhibiting scarring or fibrosis on or around the crm or other imd . optionally , the biodegradable and resorbable pouches of the invention include one or more drugs in the polymer matrix to provide prophylactic effects and alleviate side effects or complications associated with the surgery or implantation of the crm or other imd .

the present invention relates to a halogen - free , multilayered heat shrink film comprising a core layer comprising a copolymer of ethylene or propylene with an alpha olefin and the core having an upper and lower surface , a skin layer on the upper surface of the core layer , wherein the skin layer comprises a polyolefin or polyolefin blend and a printable layer on the lower surface of the core layer , wherein the shrinkage of the film is at least about 30 %. the invention also relates to articles , including cylindrical articles such as batteries . the films have good shrinkage and avoids end puckering . additionally , the films are printable , even with gravure printing . the films and labels produced thereform may be applied at high speeds and have good heat stability .

a method of separating a polymer from a biomass containing the polymer , includes contacting the biomass with a solvent system , the solvent system including a solvent for the polymer and a precipitant for the polymer , to provide a residual biomass and a solution that includes the polymer , the solvent for the polymer and the precipitant for the polymer ; and applying a centrifugal force to the solution and residual biomass to separate at least some of the solution from the residual biomass ; where , the polymer is a polyhydroxyalkanoate ; the precipitant comprises at least one alkane ; the solvent for the polymer is selected from the group consisting of ketones , esters and alcohols and combinations thereof ; and the biomass comprises a slurry of the biomass and water .

a method and apparatus for fusing a pour spout to the surrounding surface of a lid or container during the molding process . during molding the hot molten plastic of the lid or container contacts . a relatively thick rim portion at the bottom of the pour spout to meet the thick rim portion and create fusing during the cooling of the mold . the pour spout has a flexible section to permit a portion of the fused pour spout to be moved between collapsed and extended positions .

an improved golf ball injection process and mold uses electrically driven part ejection mechanisms as actuators to control retractable core pins that support a preformed core in a spherical mold cavity . the electrically driven , actuator controlled pins can be precisely and independently controlled in both the upper and lower mold segments to achieve the desired positioning and velocities in the vertical axis , with varying degrees of pinch to hold the spherical core inserts . the forward and retract position of the core pins , as well as the ability to profile pin velocities , can be easily adjusted by the molding machine &# 39 ; s computer process controller without changing mechanical stops internal to the mold . the sequence timing can be set so that the core insert can be suspended and encapsulated by plastic with varying timing , allowing for the core insert to be shifted during the molding process .

disclosed are methods of diagnosis of a pathogen - associated disease . these methods comprise : providing a biological sample from a human subject ; determining presence , absence and / or quantity of a bacterial pathogen , a viral pathogen , or a combination thereof , by a pathogen culture , a serum antibody detection test , a pathogen antigen detection test , a pathogen dna and / or rna detection test , or a combination thereof ; determining in the sample , expression levels of at least one endogenous gene in which aberrant expression levels are associated with infection with a pathogen , by a microarray hybridization assay , rna - seq assay , polymerase chain reaction assay , a lamp assay , a ligase chain reaction assay , a southern , northern , or western blot assay , an elisa or a combination thereof . the subject can be diagnosed with the disease if the subject comprises the pathogen and an aberrant level of expression of an endogenous gene .

a miniaturized temperature - zone flow reactor , used for thermally controlled biochemical or molecular - biological processes , especially polymerase chain reaction enables more efficient reactions by providing at least one closed flow path which is divided into three partial paths with the reactor having three substrate chips which are made of a material having a high heat conductivity , and which have defined channel sections that are spaced apart relative to each other , and are connected by a connecting chip made of a poor heat - conductive material . the substrate chips are maintained at different temperatures by various means , including the use of controlling heating elements in contact with the chips .

a temperature control system for a hot nozzle is used in a runner - less molding process of a plastic by an injection molding machine . the control system includes first and second temperature detecting devices for detecting the temperature of the hot nozzle at the front end of the hot nozzle and at a position upstream of the front end , respectively . control signal outputting units compare the temperature detected by the first and second temperature detecting devices with a first set temperature and a second set temperature , respectively . based on the temperature differences , first and second control signals corresponding to the temperature differences are calculated and are outputted from the control signal outputting units to a power supply unit which is connected to a power source for regulating the power for heating the hot nozzle . a switch is connected between the control signal outputting units and the power supply unit and is operable to selectively supply either one of the first and second temperature control signals to the power supply unit according to the molding cycle .

a formable composite sheet for material containment and transfer is provided which comprises a first plastic or rubber sheet layer , a second plastic or rubber sheet layer , and a metal layer between the first plastic or rubber sheet layer and the second plastic or rubber sheet layer , wherein the metal layer has a plurality of open areas formed therein . a process for making the formable composite sheet is also provided .

a spinal implant for rigid fixation of at least two vertebrae of a pine has at least one support member configured for attachment to the vertebrae and is comprised of a bio - compatible polymer composite . a plurality of fasteners attach the support members to the vertebrae . a predefined standard selection of such bio - compatible implant components ore provided so as to define support members which conform to the specific anatomical structure of the patient &# 39 ; s spine without being modified .

a plastic lid for closing a container neck opening according to one embodiment of the present invention comprises a lid body surrounded by an annular rim , the annular rim defining a gasket channel having an open portion at one end opening toward the container neck opening and including a closed base at an opposite end . the annular rim defines a pair of raised annular beads positioned adjacent the open portion of the channel for capturing a gasket received within the gasket channel . the corresponding gasket may be either a preformed gasket that is inserted into the channel or a foamed - in - place gasket that is formed in the gasket channel . no pretreatment of the lid is required for the installed gasket to be retained in the gasket channel .

the invention relates to an injection molding method for the production of a complex , high optical quality light - diffusing molded item . the molding material used comprises a matrix made of polymethylacrylate and spherical plastic particles whose particle size ranges from 1 - 24 μm and the concentration thereof ranges from 0 . 05 - 30 wt .-% in relation to the weight of the polymethylacrylate . the spherical particles exhibit a refractive index differential in relation to the polymethylacrylate matrix of 0 . 01 0 . 2 .

a composite sail is provided which is fabricated from a series of panels each of which is joined to an adjacent panel . the individual panels comprise laminates of two outer layers between which is an inner layer comprising a weft - free warp of strands of a stretch resistant polymer aligned substantially in the direction of the longitudinal dimension of the panel . one of the outer layers can itself be a laminate of at least two layers of material between which is disposed a non - woven , force - bearing thread material aligned along the principal stress lines experienced by the panel when incorporated in the sail . in a particular embodiment one outer layer is comprised of a plurality of individual segments joined together along abutting edges , each of the segments being formed from a reinforced sheet having a layer of weft - free warp of strands of a stretch resistant polymer . the individual segments in the panel may have differing strand denier density the segments in the leech of the sail having greater such density than those in the luff .

the present disclosure relates to a new polymerisation process in which ethylenically unsaturated monomers are polymerised by a living radical polymerisation process in the presence of an initiator and a catalyst . polymers produced by this new process are also thought to be novel and may be used to derivatise biological molecules to improve their efficacy as therapeutic treatments . a preferred polymer is of formula the polymers are particularly suitable for derivatising proteins , such as interferon - α .

a heat - shrinkable , wrap around sleeve is formed of a cross - linked corrugated layer of polyolefin extending between two cross - linked layers of homogeneous plastic material with an elongation at least equal to that of the corrugated polyolefin layer . preferably , the corrugations extend at an angle , which is preferably a right angle , to the longitudinal edges of the sleeve and in the direction of stretching of the sleeve prior to it being heat - shrunk onto the joint .

disclosed is a bioactive polymer comprising an effective biocidal amount of moieties derived from pyrithione and having the formula ## str1 ## wherein r 1 , r 2 and r 3 are individually selected from hydrogen and alkyl groups having from 1 to 4 carbon atoms ; and pt represents the pyrithione moiety which is defined as ## str2 ## wherein r 4 , r 5 , r 6 and r 7 are individually selected from hydrogen and , a lower alkyl group having from 1 to about 8 carbon atoms , a lower alkoxy group having from 1 to about 8 carbon atoms , a nitro group and a halo group .

an electrical connection structure that is able to electrically connect wiring to a biopolymer , a production method of the electrical connection structure , and an electric wiring method which is able to perform wiring on a nanometer - scale . a first aspect of the production method of the present invention uses a carbon nanotube as an electrode , and makes the carbon nanotube contact the biopolymer . a second aspect of the production method applies electric current between the electrode and the biopolymer of the first aspect . the electrical connection structure of the present invention comprises at least the electrode formed by the carbon nanotube and the biopolymer , wherein the electrode is in contact with the biopolymer . in the electric wiring method of the present invention , the electrode formed by the carbon nanotube contacts the biopolymer to complete an electrical connection .

apparatus for forming and fibrillating a molten polymeric film into nanofibers consisting of a plurality of two - phase flow spinning nozzles arranged in a substantially liner array each nozzle into nanofibers including one or more first input orifices for a process gas ; one or more second input orifices for a polymer melt ; a flow channel including two or more channel walls and a monotonically decreasing flow area wherein the process gas and polymer melt are combined into a stratified two phase flow with the polymer melt formed into a film on one or more of the channel walls ; and one or more channel exit openings , each exit opening including an edge at which the process gas reaches sonic velocity or less and where the edge is configured to fibrillate the polymeric film into a stream of nanofibers .

a card or insert having a plurality of recesses for a sample preparation device , the card containing cast - in - place composite and / or non - filled structures which are useful as sorptive or reactive media or for size - based separations . any particular card size or configuration can be used , and the inclusion of a large amount of adsorptive particles in polymer is achieved while still maintaining the membrane three dimensional structure . in a first preferred embodiment , the composite structures comprise particles entrapped within a porous polymeric substrate , and are cast in - place into a plurality of recesses in an insert for a multi - well sample preparation device , thereby providing an effective platform for high throughput micromass handling . with the appropriate selection of particle chemistry , virtually any separation or purification operation can be conducted in multiplicity , including selective bind / elute chromatography operations , on sample mass loads less than 1 microgram in volumes of a few microliters , as well as larger mass loads and volumes . manufacturing flexibility and high throughput is achieved . the card can be configured for direct analysis of bound sample without elution .

the invention relates to a method for using spinel pigments to increase the infrared heat - up rates of thermoplastic resins and specifically polyester bottle resins . in particular , the method comprises adding spinel pigments to polymerized resins to increase the reheat rates of the resulting polyester pre - forms . when uniformly distributed , these spinel pigments absorb applied energy and thereupon transfer the energy to the polyester .

a method for recycling polymeric materials , including a mechanical separation step , a first density separation step , an intensive cleaning step , and a second density separation step is described . additional separation steps , such as a third density separation step , and optionally a fourth density separation step . further less essential steps such as wetting , grinding , air flow separation , drying , electrostatic sorting and optional sorting steps may also be carried out to achieve optimized and refined separation . polymeric materials from refuse or crushed motor vehicles may thus be separated , and polyethylene , polypropylene , polystyrene and acrylonitrile - butadiene - styrene resins may be recycled .]

disclosed are medical prosthetic device or medical implants which exhibit improved biocompatibility . the devices or implants include a metal material , e . g ., titanium , in which the metal surfaces are coated with a corresponding hydride material that contains one or more biomolecule substance . the biomolecule substance may contain one or more biologically active molecules , e . g ., bio - adhesives , biopolymers , blood proteins , enzymes , extracellular matrix proteins , extracellular matrix biomolecules , growth factors and hormones , peptide hormones , deoxyribonucleic acids , ribonucleic acids , receptors , inhibitors , drugs , biologically active anions and cations ; vitamins ; adenosine monophosphate , adenosine diphosphate or adenosine triphosphate , marker biomolecules , amino acids , fatty acids , nucleotides , or sugars .

a granulator for comminuting plastic web scrap has features that allow it to also granulate three dimensional objects . the granulator has a pair of nip rollers mounted above a cutter assembly for drawing the web into the cutter assembly . the nip rollers have grabbing devices for grabbing three dimensional objects when they fall onto the rollers , for shredding the objects and forcing them between the rollers . in one embodiment , the grabbing device consists of a groove formed in the surface of at least one of the rollers . the groove has a sharp - edged trailing surface that grabs the article . in another embodiment , the grabbing device consists of a protruding finger that grabs the article . to provide clearance , a circumferential slot is located in the other roller for receiving the finger .

the invention relates to a sealing element comprising at least 20 - 60 wt % of pvc resin , and 20 - 45 wt % of a biobased plasticizer .

methods are disclosed for making a base of a spa apparatus to resemble artificial rocks and wood . in one embodiment , the method is comprised of the following steps : making a mold in which its inner surface has the shape and surface texture of a rock or wood ; placing a first structure on the inner surface of the mold , the first structure being operative to prevent warping of the base ; spraying polymer on the mold ; allowing the polymer to harden ; and removing the hardened polymer from the mold , the hardened polymer having substantially the shape and surface texture of rock or wood .

the invention relates to the use of biodegradable graft copolymers producible in the presence of empirically determined quantities of water from polyvinyl alcohols with a degree of saponification of 88 to 99 . 5 mol . % by an acid catalysed acetalisation and / or transacetylisation reaction with carbohydrates containing carbonyl groups or presumptive carbonyl groups , in which the degree of acetqalisation , expressed in carbonyl equivalents per 100 vinyl alcohol equivalents , is between 0 . 2 and 20 , and preferably between 1 and 10 , as a plasticiser for the thermoplaticisation of starch and / or starch mixtures .

disclosed is an exhaust gas treating system having an exhaust gas treating apparatus for carbon dioxide capture process which additionally removes harmful substances remaining in the gas discharged from the existing flue - gas desulfurization process by using separation membrane so as to efficiently carry out the carbon dioxide capture process . the exhaust gas treating system using polymer membrane , comprises a carbon dioxide capture equipment for capturing carbon dioxide from the exhaust gas of a boiler , a flue - gas denitrification equipment placed between the boiler and the carbon dioxide capture equipment , a dust - collecting equipment and a flue - gas desulfurization equipment .

this invention relates to biomineral - based cements incorporating biopolymer carriers for the site specific introduction of natural or synthetic compounds that influence bone repair and / or patient recovery . the invention further relates to methods for producing such biphasic calcium phosphate cements for drug delivery .

the present invention proposes the development of technology in the domain of targeted therapy and local drug delivery to the affected area of the tumor . the invention relates to surface modification nano -/ micro - containers , which are sensitive to acidic environment , elevated temperature , redox potential as well as the application of external applied magnetic field . these nano -/ micro - containers are made suitable to be able to carry drugs , such as antibiotics , anti - cancer , cytostatic and antimicrobials and their release will be carried to the patient tissue due to the prevailing conditions . the composition of nano -/ miocro - containers based on organic and inorganic polymers which exhibit sensitivity to the aforementioned conditions . the adjustment is carried out through the surface with aminosilanes or amino acids as ligands or small molecules such maleamide molecules which can undergo nucleophilic addition and further binding of targeting molecule .

a cable with recyclable covering , particularly for transporting or distributing medium or high voltage energy , in which at least one covering layer is based on thermoplastic polymer material comprising a propylene homopolymer or a copolymer of propylene with ethylene or an α - olefin other than propylene in mixture with a dielectric liquid . the cable of the invention possesses superior mechanical and electrical properties , including high dielectric strength , in particular enabling it to be used at high operating temperature .

collapsible container comprising a base , front and rear upwardly extending sections interconnected by a plurality of longitudinal members defining side sections and pivotally attached to said upwardly extending sections . the longitudinal members are pivotable from open position to collapsed position so that the front section closes upon said rear section . the former position is secured by stop means attached to the base portion and positioned to bear against the lower portions of generally u - shaped handle member pivotally attached to the uppermost of the longitudinal members to stabilize the container in open position . the longitudinal members are preferably of approximately convex cross section , opening downwardly to facilitate nesting and intromission of said members on rotation of said side sections to collapsed condition . the longitudinal members are preferably constructed of flexible resilient material such as plastic . in a preferred embodiment , the longitudinal members are resiliently , detachably secured to channel members provided on said front and rear sections .

the present invention relates to the composition and preparation of composite films which exhibit low oxygen and flavor / aroma transmission rates . the film comprises a silane resin coated on a plastic substrate . the silane resin is formed from the mixture of a silane solution , an acrylate , a solvent , and optionally , either an additive , water or both . this invention teaches that a variety of silane solutions and acrylates may be mixed with different solvents to achieve the desired oxygen and flavor / aroma barrier characteristics .