Datasets:

cwinkler

/

patents_green_plastics

like 1

a non - invasive injectable composition that contains type i collagen , an osteogenic growth factor , such as a bone morphogenetic protein and a reverse thermo - sensitive biodegradable polymer such as poloxamer 407 in an aqueous vehicle . the formulation can be administered non - invasively , e . g ., by injection , thus circumventing limitations of many currently marketed bone - inducing products . the injectable osteogenic formulation effectively induces bone formation at the desired locale . this injectable suspension could be used with bioresorbable bone mineral composites and / or glycosaminoglycans to mold as putty and / slab as bone graft substitute implants to induce new bone formation in fracture healing and spine fusion procedures .

there is disclosed a glass - based container having at least a portion of its external surface coated after the annealing of the glass with a protective , decorable , water - removable , organic polymeric film which can be removed by an aqueous medium such that the annealed glass container base can be recovered , recycled , and reused .

described are molds , dies and forming tools comprising : a ) a heat exchanging body support member ; and b ) within the support member , a molding cavity portion formed by thermal spraying metallic particles to a desired configuration in the support member . also described are methods of making a mold , die or forming tool comprising the steps of : a ) providing a body support member having a controlled and designed porosity which permits the enhancement of the heat transfer ability of said mold , die or forming tool ; b ) configuring a surface of the support member to a desired cavity ; and c ) spraying particles to the configured cavity in the support member , thereby producing a mold , die or forming tool . preferably , the materials of construction are metallic and are applied by thermal plasma spraying . the particles may also be ceramics , metal matrix composites , ceramic matrix composites , thermoplastic resins , thermoset resins , and composites based thereupon . the controlled porosity of the body of the mold , die and / or forming tool is as important as the use of thermal spray to subsequently form the cavity .

a method of replacing an acl with a graft . the method provides for the drilling bone tunnels in a femur and a tibia . a replacement graft is provided having first and second ends . a biodegradable composite screw is provided . the screw is made from a biodegradable polymer and a bioceramic or a bioglass . at least one end of the graft is secured in a bone tunnel using the biodegradable composite screw .

a method for building a three - dimensional part , the method comprising providing a printed three - dimensional part and support structure , where the support structure comprises at least two polymers having different glass transition temperatures . the method also comprises annealing the three - dimensional part .

a method for fabricating a mold includes the steps of forming a photo - polymerizable resin layer between a master substrate and a transparent mold substrate , wherein a first pattern is formed on the master substrate ; solidifying the resin layer by exposing the resin layer to a uv light through the transparent mold substrate ; and forming a mold having a second pattern by separating the resin layer from the master substrate , wherein the second pattern is in a form of a recess on the resin layer at a portion corresponding to the first pattern and the resin layer being engaged with the mold substrate .

fixturing for repair of automobile radiators is disclosed , usable for recoring of either brass or plastic tank radiators , including clamping gates providing parallel rails adjustably spaced to receive the radiator header with an air cylinder exerting clamping pressure on the tank top . the radiator sits atop the rails of a first set of clamping gates when resoldering conventional tanks and is recessed between the rails of a second set of clamping gates which are alternatively installed for decrimping and crimping of the header tabs of plastic tank radiators . decrimping and crimping hand tools of special configuration are also disclosed , cooperating with the rails during use .

a method for preparing a biodegradable polymeric micellar composition using liquid polyethylene glycol as a phase separation medium . the present invention also provides an efficient method to effectively incorporate a hydrophobic drug into a polymeric micelle in a polyethylene glycol separating medium .

compositions and methods for producing colored replicas are described . a method includes : combining a polymerizable varnish and a dye to form a composition , wherein the dye is substantially dissolved in the composition ; and replicating a surface topography with the composition . the compositions and methods provide advantages in that surface topography is replicated in a color tinted polymer matrix with enhanced overall cost effectiveness .

plastics articles with continuous reinforcement strands are normally produced by pultrusion . pultrusion methods are known for producing straight or curved plastics profiles . it has not hitherto been possible for reinforced plastics articles of more complex form to be produced by pultrusion methods . the invention provides a pultrusion method in which a part of a curved plastics article serves , together with a mold , for the pultrusion of a reinforced plastics article . in this way , it is possible for complex plastics articles , for example a plastics pipe , to be produced by pultrusion .

a packaging container is provided for shipping and the like that includes reinforced corners that utilizes rigid metal or plastic inserts housed in an internal , or external receiving slot .

a flexible sachet for transporting bio - pharmaceutical liquids with a volume of 50 liters or more , of the bellows type , assumes when filled a substantially parallelepiped shape . it comprises a bottom wall , a top wall and four lateral walls . it is made of a single laminated film with three or more layers , the innermost layer being a plastics material layer that can be heat welded and is biocompatible with the media transported . a method of manufacturing the sachet is also disclosed .

electrophotographic photoconductor including a conductive substrate ; and a photosensitive layer provided on the conductive substrate and including at least a charge generation material ; a charge transport material ; and a resin binder including a copolymer polyarylate resin represented by general formula below : and manufacturing method therefore . good images with less cracking occurrence are obtained during recycling of a photosensitive drum and peripheral members thereof that includes the electrophotographic photoconductor , and also when a liquid development process is employed .

a carton made of paperboard designed to contain and display round cylindrical articles and hold them in angular position to prevent slippage and rotation which would move the front of the cylindrical article out of registration with the display opening in the front of the carton . the invention may be in the form of a single blank which is folded to form a carton or a two piece blank and insert which folds the cylindrical article against an area covered with a substance such as hot melt adhesive or expanded polymer coating which is soft and provides a friction surface in contact with the cylindrical article .

an improved pry - off closure cap is described . the cap has a composite structure comprising a metal cover disc held in a molded plastic ring . the plastic ring has an inner groove for retaining the metal cover and container engaging means consisting of either spaced lugs or a continuous bead positioned on a depending skirt portion of the ring and positioned below the cover retaining groove .

the present invention relates to a biochip comprising an electrode having a titania coating layer on its surface ; an organic coupler comprising two or more carboxylic acid groups and capable of transporting electrons ; and bioactive molecules , wherein the organic coupler is covalently bonded to a hydroxyl group of titania on the electrode surface through one carboxylic acid group , and to the bioactive molecules through other one or more carboxylic acid groups , a method for analyzing target molecules using the biochip , a method for diagnosing the development of diseases using the biochip , an electrode provided with a titania coating layer on its surface to which an organic coupler , comprising 2 or more carboxylic acid groups and capable of transporting electrons , is bound , wherein the organic coupler is covalently bonded to a hydroxyl group of titania on the electrode surface through one carboxylic acid group , and a method for preparing the electrode provided with a mesoporous titania coating layer , the method comprising coating a mixed solution of a titania precursor and a template polymer on the top of the electrode , and calcinating the coated electrode under an air flow condition .

a mixing and processing apparatus for plastic melt is equipped with a separately drivable gear pump as a delivery unit . in order to avoid material deposits between the mixing and processing apparatus and the delivery pump , the gear pump is directly mounted at the outlet end of the mixing and processing apparatus , such as an extruder , so that the plastic melt is directly fed axially into the suction space of the gear pump . cleaning operations after shutdown or in the case of change of material are eliminated due to this direct transfer without dead space .

the present invention refers to new microspheres including pancreatic enzymes , pharmaceutical compositions containing them , and a process to obtain them . the process here described doesn &# 39 ; t involve the use of solvents and proves to be remarkably shorter and efficient than the producing methods of the prior arts . the microspheres obtained , including one or more pancreatic enzymes , one or more hydrophilic low - melting polymers and eventual excipients , have an high enzymatic activity , bio - availability and stability .

disclosed is nanocoupling of a polymer onto a surface of a metal substrate for improving coating adhesion of the polymer on the metal substrate , and in vivo stability and durability of the polymer . in accordance with the present invention , the polymers can be grafted via a chemical bonding on the surface of the metal substrate by the nanocoupling , by which adhesion , biocompatibility and durability of a polymer - coated layer which is to be formed later on the metal substrate were remarkably improved ; therefore , the nanocoupling according to the present invention can be applied to surface modification of a metal implant , such as stents , mechanical valves , and an articular , a spinal , a dental and an orthopedic implants .

a wheeled storage box / cargo carrier used to transport small watercraft of the type including sailboards , canoes , and small sailboats comprising a storage container and detachable components . the carrier of the present invention may be pulled by hand , and a bicycle towing clamp enables the user to pull the carrier by bicycle . large semi - pneumatic wheels permit the user to maneuver the carrier in locations that are otherwise inaccessible by motorized vehicles , such as through soft sand and over rough terrain . all of the components of the carrier are detachable and may be stored within said storage container . the storage container , in turn , is storable within or upon the watercraft . most of the components of the present invention are fabricated of plastic or non - ferrous metals to reduce the detrimental effects of corrosion .

the present invention relates to the use of 3 - dimensional synthetic or animal - derived bioscaffolds as substrates for the improved growth and differentiation of hps ; these scaffolds being adapted for use in conjunction with existing cell culture lab plastic - ware . more specifically , it relates to the seeding of these scaffolds , either alone or in conjunction with various biologic matrix coatings , with hps cells for the improved differentiation of said hps cells into hepatocyte or hepatocyte - like cell types . the invention also relates to the seeding of partially - differentiated hepatocyte progenitors onto scaffolds for further differentiation into more mature hepatocyte - cell types .

a flap - type pressure relief valve particularly intended for relieving overpressure conditions in a vehicle passenger compartment includes a frame having an integral peripheral sealing gasket that is formed on the frame by being injection molded directly thereto . the frame is molded from a relatively rigid plastic and the gasket is molded from a plastic that is significantly more resilient and flexible but selected to permanently bond to the plastic of the frame when brought into contact therewith under injection molding conditions .

a tubular intraluminal prosthesis includes a ptfe or eptfe tubular structure such as a graft , and a tubular diametrically deformable stent circumferentially surrounding the tubular structure . the diametrically deformable stent includes a polymeric coating which allows for attachment to the tubular graft structure and enhances the biocompatibility and integrity of the composite prosthesis .

a concentric coaxial cutting machine which cuts cylinders , cylindroids or cones using a chain saw from a single larger object such as a wood tree trunk , a block of ice or a block of plastic . an embodiment of the invention comprises a transverse support member having directly or indirectly mounted thereon ; a headstock member including ; a headstock spindle member mounted to said headstock member including ; a drive spindle rotationally mounted to said headstock spindle member and adapted to rotationally retain one end of an object to be centrically cut ; a tailstock member including ; a tailstock spindle member mounted to said tailstock member including ; a tailstock spindle rotationally mounted to said tailstock spindle member and adapted to retain an opposite end of the object ; a drive assembly in rotational communication with the drive spindle and adapted to rotate said drive spindle around a common axis with said tailstock spindle ; and , a first chain saw variably aligned at an angle to said common axis and adapted to concentrically cut the object from at least the opposite end .

a decorated article is disclosed which has a uniform color tone and which is excellent in heat resistance and humidity resistance which can be produced by preparing a base material , a surface of which is composed of an overlay , by injection molding or the like , the overlay having a wood material layer , a first side of the wood material layer constituting a surface of the overlay ; providing a thermosetting coloring layer comprising at least one thermosetting resin , or a modified resin thereof , selected from the group of urethane resins , epoxy resins , amino - alkyd resins , and acrylic resins on the first side of the wood material layer ; and laminating the surface of the thermosetting coloring layer with a thermoplastic resin sheet by a glue , and carrying out hot - pressing . the thermosetting coloring layer 15 may be formed by laminating a coloring layer 15 a and a sealing layer 15 b in that order .

the assembly comprises first and second tracks of extruded polyvinyl chloride plastic which , when interfaced , become a hinged clamp . when snapped or clamped together , the tracks tighten and securely clamp fabrics of varying weights . by providing relatively elongated tracks , the installation of the fabric is greatly facilitated in that extended marginal edges of the fabric can be clamped in a single clamping motion . there is no need for a special tool requiring successive stuffing of the fabric into a biased slot and the labor and time involved therewith .

a reusable and collapsible container having a collapsed configuration for storage and shipment and an assembled configuration for containing a product . the container is formed from a polymeric sheet and has substantially flat panels , hinges connecting adjacent panels , and releasable fasteners on at least some of the panels for holding the panels in an assembled configuration . the sheet has opposing walls separated by longitudinally extending webs . a portion of the hinges cross the longitudinally extending webs and are formed by hot compression of at least one wall of the sheet . another portion of the hinges are longitudinally extending and are formed by cold compression of at least one wall of the sheet .

a ceramic fiber band that can fulfill a plurality of functions in connection with the injection and / or extrusion process of an injection molding or extrusion apparatus , thereby reducing overall energy costs and creating a safer working environment . the ceramic band , being an insulator and having heating and / or cooling elements with a faster response contained therein , exert the desired heating / cooling effect upon the barrel portion of the injection / extrusion machine thereby raising , lowering , or maintaining the temperature of the fluid plastic compound passing through the barrel .

a film of biodegradable polylactic acid polymers and copolymers are produced by biaxially orienting single and multilayer extrusions . the film and sheets are stiff , have excellent optical properties and show excellent retained folding and creasing properties making them especially desirable for the production of folded box like containers . the surface layer of the film and sheet may be heat sealable or modified with a particle to give improved coefficient of friction , blocking resistance , reduced static generation , improved winding and improved package formation on packaging machines .

a flexible tube and pump dispenser for lotions and the like including a flexible plastic tube having a first end and a second end . the tube includes an integral rigid finish at one end which has a radial flange and a radially inwardly extending wall . the flange has an opening therethrough . a pump dispenser having a plunger and an axial body extends through the opening in the sealing flange of the finish . the axial body of the pump dispenser has a flange engaging the flange of the finish . the flange on the body is held in position engaging the wall on the finish .

the present invention relates to photosensitive compositions containing polynorbornene polymers and certain additives that are useful for forming microelectronic and / or optoelectronic devices and assemblies thereof , and more specifically to compositions encompassing pnbs and certain hindered phenols as additives which are resistant to thermo - oxidative chain degradation .

a method and apparatus for injection blow molding hollow plastic articles characterized by increased capacity due to back - to - back operations or stack molding and a rapid and efficient operating cycle . the process and apparatus includes back - to - back injection mold stations , back - to - back blow mold stations located on each side of and adjacent said injection mold stations in side - by - side relationship therewith , back - to - back ejection stations located adjacent each of said blow mold stations in side - by - side relationship , and blow cores cooperating with said injection stations and blow stations , wherein the operation of said cores is facilitated by an overlapping cycle .

biologically active heteropolymeric protein composed of a plurality of subunits , each subunit being synthesized by a cell having an expression vector heterologous dna encoding the subunit .

a molding apparatus and method for the combined manufacturing and filling of plastic containers in a one step process . the molding apparatus and method utilize a mold having an inner cavity with surfaces presenting hydrophobic properties thereby enabling a resultant container to have flawless appearance .

the present invention is directed towards the synthesis of polymeric drug delivery compositions which would address some of the important and difficult to realize aspects of polymer based drug delivery systems by being , biocompatible , stable , capable of achieving desired drug loading , and safe from accidental release while being non - toxic , easy to fabricate and safe for the environment .

process for the preparation of a porous , pure silica which is particularly suitable as a catalyst support for a chromium - oxide catalyst used in polymerizing of olefins . the process comprises the steps of converting a silicon - halogen compound to a silica and then admixing with water to form a silica gel . the gel is then spray - dried to achieve the required particle size and pore volume . the silica can then be made into a catalyst by placing on the support a chromium compound and then heating in a non - reducing atmosphere .

an apparatus and method to adjust the dimensions of thermoplastic components following passage of the component through final processing in a fixture . the invention particularly relates to an apparatus for maintaining product tolerances on thermoplastic components that have undergone post - form extrusion . in addition , the invention relates to a method for maintaining product tolerances on post - form extruded thermoplastic materials .

radiation - crosslinked , biodrgradable , synthetic hydrogels and their use in various applications , including certain medical applications wherein the hydrogel are implanted on or in the body of a human or animal patient . radiation - crosslinked , biodrgradable , synthetic hydrogels of this invention may be prepared by irradiating monomers or polymers , some or which are biodegradable or which contain biodegradable units or subunits . specific medical applications of these radiation - crosslinked , biodrgradable , synthetic hydrogels include applicatins wherein the hydrogel is used for hemostasis , tissue augmentation , tissue engineering , embolization , closure of vascular punctures or wounds and other medical applications .

a surfboard leash apparatus is disclosed . the surf leash apparatus includes a cuff for attaching to a limb of a surfer , the cuff having an inner surface , the inner surface of the cuff having a pattern of compressible grips disposed thereon . the surf leash further includes an attachment mechanism for attaching to a surfboard , and a leash cord connected between the cuff and the attachment mechanism . the leash cord includes an elastic fiber rope core having a predetermined amount of stretch , and an extruded thermoplastic urethane cord surrounding the elastic fiber rope core . the extruded thermoplastic urethane cord has an elasticity corresponding to the predetermined amount of stretch of the elastic fiber rope .

new ampholyte biomaterial compounds containing ampholyte moieties are synthesized and integrated into polymeric assemblies to provide hydrophilic polymers exhibiting improved biocompatibility , haemocompatibility , hydrophilicity non - thrombogenicity , anti - bacterial ability , and mechanical strength , as well as suitability as a drug delivery platform .

a skin layer for covering a dash panel structure in overlying relation to an air bag cushion assembly . the skin layer is of a multi - layered construction including a top layer of virgin polymeric material forming a show surface of controlled predefined color across the vehicle dash panel and an underlying layer of regrind material formed from the scraps of material generated during molding and trimming of the dash panel covers . a tear seam may be scored across the underside of the skin extending into the underlying layer of recycled material in a desired break - out pattern for the air bag cushion . the skin layer may be disposed across an underlying layer of foam which in turn is disposed across a supporting panel structure .

a plastic container includes an upper portion having a mouth defining an opening into the container . a shoulder region extends from the upper portion . a sidewall portion extends between the shoulder region and a base portion . the base portion closes off an end of the container . a vacuum panel region defined in part by at least two vacuum panels . each of the vacuum panels are movable to accommodate vacuum forces generated within the container resulting from heating and cooling of its contents . the vacuum panel region occupies an area outboard of the sidewall portion .

this invention provides an adhesion binder for binding fluorinated polymers , for example pvdf , with incompatible polymers such as polyamides . the binder is a polymer a which has glutarimide , acid , anhydric and acrylate units , and is useful for the production of fuel hoses . when mixed with a fluorinated polymer such as pvdf , copolymer a acts both as a binder and as a barrier .

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 .

a form - retaining container made of synthetic plastic material and apparatus for its manufacture in which a plastic material is fed in liquid state onto a male member to provide a layer on the male member constituting a blank for the container . the layer is cooled to prevent crystallization of the material . the thus cooled blank is placed into a mold cavity having an interior configuration corresponding to the desired outer shape of the container to be produced . the layer is inflated into conformity with the mold cavity . the configuration of the mold cavity is such that the blank undergoes biaxial stretching in a middle region of the container by at least 1 . 5 times while the mouth and part of the bottom of the container will be formed by biaxially stretching the blank less than 1 . 5 times . the inflated blank is then heated until curing is completed and then the blank is removed from the mold .

the present invention provides for polymeric stabilizers which are the acid - catalyzed reaction product of a phenolic compound or a ring substituted aromatic compound and an olefin polymer containing either terminal unsaturation and / or pendant unsaturation along the polymer chain . these stabilizers are readily compatiable with olefin polymer and copolymer matrixes and offer good protection of the matrix polymer against one or more of heat , oxygen , ultra violet or radiation degradation . other advantages include low volatilization as well as low tendency to migrate from the polymer matrix .

a guide catheter includes a tubular section formed of a shape memory polymer that can transform dynamically between first and second states or conditions , or among three states or conditions , to provide a wide range of properties of the guide catheter as desired during delivery of the guide catheter through the vasculature to a target site , and removal of the guide catheter from the target site and vasculature . the states or conditions of the shape memory polymer be dynamically changed to vary properties of the tubular section such as stiffness , flexibility , shape , or biodegradability , which can be controlled by exposure of the shape memory polymer to temperature changes , electric fields , magnetic fields , wavelengths of light , and chemical solutions .

a chemical seal for isolating the liquid phase of a contained liquid from the vapor phase present in the container headspace comprises a chemically impregnated gel formed by mixing a biopolymer gel , a high molecular weight polymer and chemical impregnants with water to form a gel - forming aqueous solution which is applied to the surface of the contained liquid and allowed to solidify thereby forming a mechanically stable , chemically impregnated gel seal in intimate contact with the contained liquid .

a pair of plastic containers are compressed intermediate a pair of jaws and rf energy is applied as a function of the change in impedance of the melting plastic between the jaws to sterilize with heat the plastic intermediate the pair of jaws and to form a sterile rupturable membrane encircled by a seal to permit fluid communication on demand between the containers upon rupture of the membrane . the use of rf energy to heat bipolar plastic material both sterilizes the plastic material and welds the plastic material at a proper temperature to form the rupturable membrane without the use of any instrumentation indicative of temperature or other control parameters .

vascular biomaterial structures may be coated with a plasma - induced layer on their surface . vascular biomaterial structures may include cardiovascular devices such as heart valves , stents , vascular graphs , and the like . devices coated with a plasma polymerized coating may show reduced amounts of undesirable coagulation of blood at the surface of the device . a reduced amount of thrombosis may be observed for such plasma coated medical devices .

a dual damascene process for forming conductive interconnects on an integrated circuit die . the process includes providing a layer of porous , ultra low - k dielectric material in which a via opening is subsequently formed . a thermally degradable polymeric material is applied to the side wall sidewalls of the opening such that the porogen material penetrates deeply into the porous ulk dielectric material . once a conductive material has been provided with the opening and polished back by means of chemical mechanical polishing , the complete structure is subjected to a curing step to cause the porogen material with the ulk dielectric layer to decompose and evaporate , thereby restoring the porosity of the dielectric layer . attached are a marked - up copy of the originally filed specification and a clean substitute specification in accordance with 37 c . f . r . §§ 1 . 121 and 1 . 125 . applicant respectfully submits that the substitute specification contains no new matter .

a preferred novel breaker - crosslinker - polymer complex and a method for using the complex in a fracturing fluid to fracture a subterranean formation that surrounds a well bore by pumping the fluid to a desired location within the well bore under sufficient pressure to fracture the surrounding subterranean formation . the complex may be maintained in a substantially non - reactive state by maintaining specific conditions of ph and temperature , until a time at which the fluid is in place in the well bore and the desired fracture is completed . once the fracture is completed , the specific conditions at which the complex is inactive are no longer maintained . when the conditions change sufficiently , the complex becomes active and the breaker begins to catalyze polymer degradation causing the fracturing fluid to become sufficiently fluid to be pumped from the subterranean formation to the well surface .

a low specific gravity thermosetting resin composition of high fluidization with excellent mechanical properties , and methods for preparing the same , wherein a thermosetting resin composition for outer plastic panel of an automobile is modified in that a part of the inorganic filler is replaced with a low specific gravity filler , and the type of a filler and a thickener are altered from those compounds normally used for car panels . the are light - weight . the process prevents the degradation of the low specific gravity filler which can normally occur under a general compacting pressure . the composition has superior plasticity even when press forming under a low pressure .

a sprayable composition and a method of protecting material with the composition is disclosed . the composition comprises a bulking / setting material , a water soluble polymer and water to provide a cover layer which , after spraying , is tough , flexible and water - repellent . other materials such as clay , fibrous material , a foam producing agent and a hardening retarder can be included in the composition . the composition is effective as a cover layer over material such as soil , refuse at a dump site , stockpiled material , a temporary cover for remediation sites , or tire piles .

a two - stage sealed magnetic filter continuously removes magnetic and non - magnetic contaminants from liquid process streams . elongated non - magnetic holder sleeves encasing magnet bars attract magnetic contaminants while a screen cylinder captures non - magnetic contaminants . the magnet bars are accessible without having to open the interior of the housing to the environment . thus , during maintenance , removing the magnet bars from the holder sleeves releases the magnetic contaminants that have adhered to the holder sleeves into the screen cylinder which partially encloses the holder sleeves . contaminants are flushed out of the magnetic filter without exposing workers to potentially hazardous substances . polymeric sludge occluded with iron compounds can be effectively removed from streams in refineries and chemical plants . the iron compounds are formed from carbon steel which is prevalent in plant machinery and that corrodes in the presence of acidic contaminants .

an endboard for supporting a roll of material is provided . the endboard consists of a substantially rigid member that is sized and shaped to receive and support the roll of material . the endboard is molded from a mixture of plastic and sawdust . the combination of plastic and sawdust provides improved loading bearing strength and allows for support of heavy rolls of material without requiring the roll to support itself on its face . the endboard design thus prevents damage to the rolled material stored in horizontal fashion . in a preferred embodiment , the endboard has a series of elongated substantially parallel recessed portions that are vertically aligned and at least partially define vertical ribbed portions . the recessed portions and ribbed portions thus reduce the amount of material needed for construction of the endboards , while maintaining the structural integrity thereof .

the present invention relates to protein - coated micro - crystals and their method of preparation . the protein - coated micro - crystals may find particular application in preparing enzymes for use as biocatalysts ; preparation of therapeutic proteins for use in pharmaceutical formulations ; production of cleansing agents comprising enzymes ; production of paints , varnishes , coatings , films and the like comprising proteins which impart protective and / or antifouling properties ; production of films , polymers , inks , coatings , electrodes and / or optical materials comprising proteins for diagnostic kits and / or biosensor applications ; use of proteins for studies of molecular recognition , molecular binding and inhibitor binding in non - aqueous media ; and preparation of protein based food additives .

a substrate for retaining a particulate packing medium within a chromatography column is disclosed . the substrate is formed from a polymer material and positionable to retain the packing medium within the column . the polymer has pores sized to retain the packing medium within the column but allow fluid , such as transport liquid or carrier gas to pass through . a method of forming the substrate within the column is also disclosed . the method includes placing a polymer precursor into the column and then polymerizing it to form the substrate .

articles constructed of a plurality of scuffed sheets have improved sheet - to - sheet bond strength and surfaces with high coefficients of friction . articles constructed out of three scuffed sheets include exterior intumescent polymeric surfaces resisting the spread of combustion flames and insulating the interior surfaces from the high temperature of fire . articles include electronic apparatus sending an emergency 911 call to a remote monitoring station . articles are advantageously reinforced with optional rigidifying structures without article modification . members are joined with snap together features providing an assembled article . articles include handles for ergonomic manipulation by workers . articles include elements amenably receiving unitization accessories . the article improvements are demonstrated in the form of industrial platforms , particularly material handling pallets .

a family of carboxylic acid group containing fluorene / fluorenon copolymers is disclosed as binders of silicon particles in the fabrication of negative electrodes for use with lithium ion batteries . these binders enable the use of silicon as an electrode material as they significantly improve the cycle - ability of silicon by preventing electrode degradation over time . in particular , these polymers , which become conductive on first charge , bind to the silicon particles of the electrode , are flexible so as to better accommodate the expansion and contraction of the electrode during charge / discharge , and being conductive promote the flow battery current .

the present invention relates to the recycling by depolymerisation through thermolysis . a method and installation for depolymerisation through efficient thermolysis for recycling is provided that allow the production of light hydrocarbons having high quality and being free of impurities and contaminants . this objective is achieved by methods and installations where either the secondary products of the process are re - fed to supply energy for the main recycling process or are refined to manufacture final usable and saleable products . therefore , the use of the energy content of the starting materials is maximised by assuring their full utilisation , minimising the environmental harm while an energetically autonomous installation is provided . all the components of the waste or starting material may be recycled , by physico - chemical means , and no additional contaminant waste is produced .

a method for preparing synthetic polymerized resins for ion exchange , namely , carboxylic cationites , which are suitable as sorbents for preparative separation and purification of biologically active compounds by low pressure liquid chromatography . the directional polymerization conditions enable such cationites to be prepared with polymeric structures which can be used for the separation of macromolecules , such as proteins , with high molecular mass from various microbiological raw materials and physiological liquids . depending upon the embodiment of the method of manufacture according to the present invention , the resultant carboxylic cationites are obtained in one of three forms : a swollen block , if no pre - polymerization or dispersion stages are performed ; and , if such stages are performed , depending upon the dispersion conditions , the resultant structures can be either irregular particles or spherical granules .

biomedical materials are encapsulated in ionically crosslinked polymer capsules , preferably alginate microcapsules . the alginate capsules are then subjected , in a liquid vehicle , to an ethylenically unsaturated monomer and an initiator , to induce polymerization of the unsaturated monomer and therey enhance the strength of the capsule wall . the microcapsules can be after - treated with , for example , polysine and alginate to reduce their tendency to elicit an immune response if implanted in an animal . the invention extends to the microcapsules and also to a method of treating or preventing medical conditions in an animal particularly a human , by implanting microcapsule containing biomedical material in the animal .

two members , at least one member being permeable to ultraviolet radiation are glued together by means of a photopolymerizable substance deposited in layer form on and exposed to radiation through the permeable member . this substance comprises various vinyl monomers , soluble reactive polymers and a photosensitive catalyst , whereby at least one of the monomers or reactive polymers has a thi - irane cycle as part of its structure .

novel membranes comprising various polymers containing heterocyclic nitrogen groups are described . these membranes are usefully employed in electrochemical sensors , such as amperometric biosensors . more particularly , these membranes effectively regulate a flux of analyte to a measurement electrode in an electrochemical sensor , thereby improving the functioning of the electrochemical sensor over a significant range of analyte concentrations . electrochemical sensors equipped with such membranes are also described .

an extrusion die , particularly for double - walled corrugated thermoplastic pipes , including an extrusion head , a nozzle , two concentric hollow mandrels carrying die lips and an additional cooled and vacuumed mandrel . the vacuum is maintained between the latter and the inner wall of the pipe to prevent retraction of the wall from the mandrel until the wall is set .

a visor includes a polymeric core divided in halves in a clamshell - type configuration in which adjacent the hinged junction of each half there is provided a slot extending inwardly from an edge of the core to define a clip recess . the core includes an aperture extending inwardly from one end of the core and spanning across opposite sides of the edges of the clip recess for receiving and holding a pin inserted from an end of the core . the pin is inserted while a cylindrical roller sleeve is positioned in the recess to hold the sleeve in the recess .

the present invention relates to an apparatus for monitoring the progress of membrane fouling that occurs on pores as well as on the surface of a membrane by means of variations of zeta potential of a hollow - fiber membrane according to time passage of filtration of a suspension , wherein colloid particles , biopolymers and other inorganic particles are dispersed , and the method thereof . moreover , the present invention also relates to a method to identify the effect of concentration polarization layer and cake layer which can vary according to the axial position of a hollow - fiber and the developing progress of a membrane fouling by measuring the position - dependent zeta potential of the hollow - fiber membrane .

a photochromic polyurethane laminate that is constructed to solve certain manufacturing difficulties involved in the production of plastic photochromic lenses is disclosed . the photochromic laminate includes at least two layers of a resinous material and a photochromic polyurethane layer that is interspersed between the two resinous layers and which contains photochromic compounds . the polyurethane layer is formed by curing a mixture of a solid thermoplastic polyurethane , at least one isocyanate prepolymer , at least one photochromic compound , and a stabilizing system .

theft - resistant product packaging includes a front shell having a matrix of cut - resistant strands disposed within or adjacent to a plastic substrate , and a back cover secured to and disposed relative to the front shell so as to form a cavity configured to contain a product therebetween . the cut - resistant strands may be formed of metal , fiber or fabric forming a matrix of cut - resistant strands which are overlayed , weaved or twisted with respect to one another . the cut - resistant strands may be disposed in a grid so as to form squares , rectangles , diamonds or parallelograms which are welded , glued or bound at the points of intersection

a high performance thermoplastic hose useful as a power steering hose , the high performance thermoplastic hose comprising a high performance engineering thermoplastic such as polyurethane and a chlorine - containing polyolefin such as chlorinated polyethylene , chlorinated polypropylene , chlorinated copolymers containing ethylene and propylene , chlorosulfonated polyethylene , chlorosulfonated polypropylene , chlorosulfonated copolymers of ethylene and propylene or mixture thereof , is disclosed . also disclosed are a method for manufacturing the high performance thermoplastic hose , and a thermoplastic vulcanizate capable of resisting chemical attack and withstanding temperatures up to about 300 ° f .

devices for cross - welding or cross - separating welding plastic films are used in a manner known per se in machines for producing bags , said devices comprising a welding roller and a heated welder terminal which can be moved reciprocally and between which the plastic films are guided for welding . according to the invention , the welding roller is covered by a continuous belt .

disclosed is a biodegradable composition characterized by compounding yeast and biodegradable plastic at a particular proportion . the purpose is to provide a biodegradable composition having very good biodegradability and additional fertilizer effect , making good use of the characteristics of yeast .

a method for controlling the temperature of injection molding machines using cross - linking polymers and molding die units using plastics . each unit is equipped with at least one cooling channel for circulating a temperature controlling medium therethrough . the temperature of the exhausted medium is compared to a desired value and the circulation of the medium is adjusted accordingly . the method includes the steps of calculating the heat dissipation within a cycle and presetting the desired heat dissipation , prior to the start of temperature control . the temperature of the exhausted medium and the feed medium are continuously measured . the heat content value wrg of the unit is determined once the unit reaches thermal equilibrium . the value wrg is stored in a subsequent cycle as a desired value based on the difference between the temperature of the exhausted medium and the feed medium during a reference cycle . the desired value is compared with the instantaneous actual value measured during all subsequent cycles . a correction value is determined based on the deviation of the heat content from the reference cycle . the temperature control impulses trigger at point z 1 and terminate at z 2 at the latest . events z 1 and z 2 are preset signals from the unit sequence controller .

a method and apparatus for the automatic filling of plastic bags with , for example , elastic , soft and deformable contents . in order to provide for the automatic handling of empty bags without intermediate , especially manual , steps , the invention provides that the empty bags are attached by extending flaps to a plastic carrier web across a tear line . the apparatus of the invention places a quantity of goods into the bag by means of an axially moving filling piston which passes between spreadable jaws that hold the bag open . the continued motion of the filling piston eventually exerts a force sufficient to cause fracture along the tear line and separation of the filled bag from the flap which stays attached to the carrier web . the piston then moves the filled bag into position for sealing . a number of embodiments is presented .

a plastic janitorial x - frame cart which is stable when in the closed position . the cart contains a circular rotator which allows the unit to take advantage of the symmetry of legs . further the unit contains a bottom tray with elevated ends .

a tissue marker formed of a biodegradable polymer having drug - delivery capabilities is combined with a sealant that encapsulates the tissue marker and which serves to help anchor the tissue marker against migration . the sealant is delivered to a site in dehydrated form and moisture inherent in tissue at the site expands the sealant . the expanded sealant is formed of a hydrogel and is therefore more compatible to the surrounding tissue than the material of the tissue marker . the sealant and the tissue marker are both bioabsorbed over time .

a decorated strip of coated , heat - shrinkable , plastic sheet material is placed in a spiral slot formed in a silicone rubber mold . the spiral slot is defined by a spiral wall having a uniform wall thickness . upon heating in an oven , the material shrinks , forming a resiliently expansible arc - shaped band that can be worn as a bracelet or wristband .

nanocrystalline cellulose is employed as the cross - linker and reinforcement domain for developing nanocomposite hydrogels possessing high strength and improved diffusion property ; the resulting nanocomposite hydrogels are shown to have high mechanical properties , reversible swelling ability , and are biodegradable and biocompatible ; the approach relies on free radical polymerization to form the hydrogels using a variety of hydrophilic vinyl monomers . these hydrogels are suitable for developing highly absorbent hygiene products , as well as for applications in medicine , engineering materials and sensors .

the invention relates to a variable - volume bottle made from pet and having an elastically deformable and plastic - deformation - resistant bellows structure , which allows the volume of the bottle to be adjusted according to the degree to which the peripheral annular folds are folded . the invention comprises one or more sectors without peripheral annular folds , intended for identification labels .

non - invasive methods have been developed for the measurement of no levels in a variety of fluid media , e . g ., body fluids . the present invention embraces the use of a semi - permeable vessel wherein said vessel contains an no reacting substance to trap no diffusing thereinto , and a simple physical or chemical detection method to measure the levels of the end products . since no is a neutral gas molecule , it is capable of diffusing freely across a wide range of biocompatible polymer membranes which exhibit a high permeability to no and other neutral gas molecules , such as o 2 and co 2 , but which are not permeable to charged molecules , such as no 3 - or no 2 - . the latter two compounds are ubiquitously present in body fluids and often interfere with the measurement of no levels . the permeability of selected membranes to no , but not to no 3 - or no 2 - , makes it possible for the bags employed in the practice of the invention to selectively collect no , even in the presence of potentially competing species . the simple , easy and non - invasive methods of the invention will find a variety of uses , e . g ., for diagnosis and monitoring of no overproduction that has been associated with many inflammatory and infectious diseases .

a gram - negative bacterial strain , pseudomonas putida tx2 , was isolated from farmland , which had received frequent applications of a various pesticides and surfactants . this strain was demonstrated to have the capacity to grow on alkylphenol polyethoxylates or alkylphenol as sole source of carbon and energy . the metabolic activity of this strain can be applied in the degradation of organic polymers containing ethoxylate units , alkylphenol and alkylphenol derivatives .

a securing structure for a light emitting element at a surface of a shell - like accessory and a manufacturing method for the securing structure are provided . according to an appearance of a handmade accessory , a mold , a positioning tenon and an adapter body are provided . the adapter body is supported and secured by combining the positioning tenon at the mold . with repeated applying operations , a plastic cementing agent is applied at an outer round surface of the adapter body to provide a combining effect . the mold and the positioning tenon are removed after the plastic cementing agent is set and shaped . thus , using an axis and structure support of the adapter body , the light emitting grain installed is capable of securing an angular position of its optical axis as well as enhancing the combining strength .

modified polystyrenes are described which are catalysts for the conversion of organic isocyanates to the corresponding carbodiimides . the modified polystyrenes are characterized by the presence of recurring units of the formula : ## str1 ## r 1 and r 2 are hydrocarbyl which is free of substituents reactive with isocyanate groups , r 3 is hydrogen , chloro or methyl , r 4 is hydrogen or methyl , and n is 0 or 1 . the use of the above polymers to catalyze the formation of carbodiimides from organic isocyanates is also disclosed .

novel membranes comprising various polymers containing heterocyclic nitrogen groups are described . these membranes are usefully employed in electrochemical sensors , such as amperometric biosensors . more particularly , these membranes effectively regulate a flux of analyte to a measurement electrode in an electrochemical sensor , thereby improving the functioning of the electrochemical sensor over a significant range of analyte concentrations . electrochemical sensors equipped with such membranes are also described .

the invention relates to chewing gum comprising at least two different biodegradable polymers . according to the invention , a chewing gum comprising at least two different biodegradable polymers exhibits an improved texture prior to any adding of for example softeners . it has been realized that the desired chewing gum texture properties , contrary to every expectation and any prior art disclosures , may be actually be obtained when combining biodegradable chewing gum polymers , for example in the gum base or in the final gum .

an improved chemical pressure vessel for storage , shipping and pressurized dispensing of fluid chemicals is formed with a seamless fluoropolymer inner liner permanently encapsulated within a metallic overpack . to protect the liner from the heat of welding during encapsulation of the overpack around the liner , the liner is formed with recessed indentation immediately adjacent the weld area . the indentation retains a sacrificial layer of fluoropolymer to ensure that the heat of welding will not affect the liner itself . in addition , the overpack is formed with a protective flange or &# 34 ; puddle plate &# 34 ; in the area of the weld to ensure that there is adequate isolation of the weld puddle from the fluoropolymer liner . the fact that the liner is seamless and permanently encapsulated within the overpack eliminates the need for periodic disassembly of the vessel for inspection of seams for possible leakage .

a dmfc system which realizes appropriate temperature management on a methanol aqueous solution and on a dmfc with consideration given to the activity of methanol oxidation reaction between electrodes and suppression of degradation of solid polymer films . the fuel cell system according to the present invention comprises : a fuel cell which generates electric power by using liquid fuel ; a fuel feed unit which feeds the liquid fuel to the fuel cell ; an emission recovery unit which recovers emissions from the fuel cell ; and a heat medium feed unit which feeds a heat medium for cooling the emissions to the emission recovery unit . here , the heat medium cools the fuel cell .

a frame member is extruded from a composite material including plastic and wood fiber . a plastic end cap is sonically welded to a cut end of the frame member despite the presence of wood fiber at the interface .

a low cost moisture curable sealer and adhesive composition containing a polymer having reactive silyl groups and a bituminous material and having many advantages over conventional moisture cure sealer compositions , including greater elastomeric properties , improved flexibility and pliability , lower durometer , faster and deeper cure , low temperature cure . the composition is also free of carcinogens such as coal tar , toxic isocyanates , and volatile solvents .

this invention describes photopolymer printing plate developing solvents comprising diisopropylbenzene , alone or in combination with one or more co - solvents . compared with solvents of the prior art , the developing solvents of the present invention have lower toxicity , higher flash points , a milder and more pleasant odor , increased resistance to thermal decomposition , higher solvency , faster dry time , and pose reduced threat to the environment . the solvents of the present invention can exhibit azeotropic - like properties resulting in improved recycling characteristics and reduced drying times . also , the solvents of the present invention exhibit a degree of selective solvency towards non - crosslinked photopolymers vs . crosslinked photopolymers that is not seen in solvents of the prior art .

the present invention relates to a bioreactor including at least one reactor vessel in form of a plastic bag , a tray for holding said at least one bag , a rocking device for limited rocking motions of the tray around a rocking axis . according to the invention the bioreactor comprises a device for enabling swinging of the tray around a second axis parallel to and distanced from the rocking axis .

the present invention relates to a poly copolymer having an ion exchange group , particularly a positive ion exchange group , a method for manufacturing the same , and use thereof . in the poly copolymer having the ion exchange group according to the present invention , physical characteristics , ion exchanging ability , metal ion adsorption ability and a processability are excellent , and thus the copolymer can be molded in various shapes and can be extensively applied to various fields such as recovering of organic metal , air purification , catalysts , water treatment , medical fields and separating of proteins .

the present invention relates to an apparatus for monitoring the progress of membrane fouling that occurs on pores as well as on the surface of a membrane by means of variations of zeta potential of a hollow - fiber membrane according to time passage of filtration of a suspension , wherein colloid particles , biopolymers and other inorganic particles are dispersed , and the method thereof . moreover , the present invention also relates to a method to identify the effect of concentration polarization layer and cake layer which can vary according to the axial position of a hollow - fiber and the developing progress of a membrane fouling by measuring the position - dependent zeta potential of the hollow - fiber membrane .

polymer - metal ion composites and methods are provided for reversibly binding target compounds using such composites . broadly , the composites comprise an amorphous polymer matrix having a plurality of channels with metal ion - ligand complexes immobilized therein . the composites are formed by polymerizing a polymeric moiety with a metal complex template in the presence of a solvent . the template is formed of a metal ion having a ligand bonded thereto as well as to polymer matrix . the metal ion and ligand are selected to yield a composite having a particular chemical and / or physical environment around the metal sites , depending upon the desired end use . preferred metal ions include ions of the transition metals . the composites can be contacted with target compounds for reversibly binding the compounds . exemplary compounds include those selected from the group consisting of oxygen , carbon monoxide , carbon dioxide , compounds having an atom of p , s , or n , and mixtures thereof . the compound can be released from the composites at the desired time and location by heating the compound - containing composite .

a closure is provided for a water bottle of the type used in conjunction with a water fountain . the closure comprises a body having an open feed cylinder and a sealing cap which is movable between a sealing position and an open position and is adapted to seal the feed cylinder when in a sealing position . the sealing cap is biased towards a sealing position by biasing means which preferably comprise a plastics spring that anchors the sealing cap to the body . the form of the spring and the arrangement of the sealing cap and the feed cylinder are such as to minimize and compensate for creep in the plastics material of the spring in use of the closure to ensure resealing of the feed cylinder if and when the water bottle is removed from the water fountain .

a device for blowing , with the aid of a pressurized fluid , containers from thermoplastic blanks closed in a blow mold including a nozzle whose end is functionally and sealingly connected to the neck of the blank and includes several solenoid valves for selectively connecting the nozzle to the source of a moderately pressurized pre - blowing fluid , to the source of a highly - pressurized blowing fluid and to an exhaust for discharging the pre - blowing / blowing fluid , respectively . the inventive device also includes a body which is mechanically associated with the nozzle , incorporates at least one reception area for receiving a solenoid valve and is selectively connectable to the nozzle .

a beverage package having a blow molded plastic container of a single resin that is filled with a beverage product and sealed . the sealed container is wrapped in an oxygen barrier film to prevent oxygen from contacting the container and permeating through the container wall and thereby spoiling the beverage . the wrap is separable from the container before the beverage is consumed resulting in two separate , single material components for easy recycling . the molded container includes an upright side wall having a recessed groove sized to receive and store a telescoping straw for use in drinking the contents of the container .

a reclosable plastic film bag and the method of making the same with the bag having opposed side walls , pressure closable separable opposed rib and groove fastener elements on confronting faces of the top for closing the bag , plastic film above the fastener elements hermetically closing the bag top , lines of tear perforation through the film to tear off the top and perforation sealing strips attached to the surface of the film preventing the passage of air through the perforations .

a press - formed plastic coated paperboard tray is hermetically sealed by applying a hot melt or wax to indentations formed in a flange of the tray at the corners of the tray . a film cover is then adhered to the tray over the flange and the hot melt or wax filling the indentations in the corner of the flange of the tray provides a hermetic seal for the interior of the tray and its contents , such as sterilized medical instruments , and precludes leakage of liquids housed within the tray .