Datasets:

cwinkler

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patents_green_plastics

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fibers of a biocompatible , biodegradable or non - biodegradable , synthetic polymer are provided , and are formed into a three - dimensional scaffold . the fibers of the scaffold may have a branched configuration extending outwardly from a central stem . the fibers provide sufficient surface area to permit attachment to the scaffold in vitro of an amount of cells effective to produce functional vascularized organ tissue in vivo . fibers of the scaffold are spaced apart such that the maximum distance over which diffusion of nutrients and gases must occur through a mass of cells attached to the fibers is between 200 and 300 microns . the diffusion provides free exchange of nutrients , gases and waste to and from cells proliferating throughout the scaffold in an amount effective to maintain cell viability throughout the scaffold in the absence of vascularization . cells derived from vascularized organ tissue are attached in vitro to the surface of the fibers uniformly throughout the scaffold and the cells are grown on the scaffold in a nutrient solution in vitro to form a cell - scaffold composition . growth factors , compounds stimulating angiogenesis and immunomodulators may be provided in the cell - scaffold composition and the fibers may have a coating to enhance cell attachment . the cell - scaffold composition is implanted in a host at a location having adequate vascularization to allow growth of blood vessels into the cell - scaffold composition . combinations of cell - scaffold compositions containing different cell populations may be implanted .

a cylindrical switch has one or more passages which open onto a lateral cylindrical surface of the switch . the switch is capable of being tightly received in a cylindrical hole in a hot plate and of being selectively orientated so that the passages are angularly in line with or offset from two or more channels in the hot plate which open onto the hole in order to selectively permit , interrupt or divert the flow of molten plastics material between the aforesaid channels . the switch incorporates a circuit for a cooling fluid .

the invention relates to material compositions comprising adult stem cells obtained from exocrine gland tissue and a supporting matrix having the shape of a thread structure and / or of a net . the supporting matrix preferably consists of a plastic material which is physiologically acceptable and degradable in the body . the material compositions of the invention are in particular suited for use in regenerative medicine , e . g . for regeneration of injured or damaged myocard tissue .

in a process for upgrading cleaned used plastic material to be reclaimed , all steps are performed in a continuous way so as to extrude continuously the plastic material to provide elongated strands thereof , cutting the strands continuously as they are supplied by extrusion to convert them into pellets . then , the pellets are fed without any intermediate storage to a continuous crystallizer in a stream of hot gas to heat the pellets to crystallizing temperature .

a method of manufacturing an automotive reflector comprising a series of steps . a thin plastic film having a backing material is thermoformed into the rough shape of the reflector . the thermoformed film is called a pre - form . the pre - form has a concave surface and a convex surface . the backing material forms the convex surface . the pre - form is placed within an injection molding press with the concave surface juxtaposed a mold core . molten reinforced plastic material is injected into the mold adjacent to the backing material . the plastic material heats and fuses to the backing material to form a reflector . after the plastic material has cooled , the reflector is removed from the injection mold as a finished reflector .

the invention relates to a composition comprising a thermoplastic polymer and wood fiber composite that can be used in the form of a linear extrudate or thermoplastic pellet to manufacture structural members . the polymer , the fiber or both can be modified to increase compatibility . the wood fiber composite structural members can be manufactured in an extrusion process or an injection molding process . the linear extrudate or pellet can have a cross - section of any arbitrary shape , or can be a regular geometric . the pellet can have a cross - section shape having a volume of at least about 12 mm 3 . preferably the pellet is a right cylindrical pellet having a minimum radius of about 1 . 5 mm and a minimum length of 1 mm weighing at least 14 mg . the invention also relates to an environmentally sensitive recycle of waste streams . the polymer and wood fiber composite contains an intentional recycle of a waste stream comprising polymer flakes or particles or wood fiber . the waste stream can comprises , in addition to polymer such as polyvinyl chloride or wood fiber , adhesive , paint , preservative , or other chemical stream common in the wood - window or door manufacturing process , or mixtures thereof . the initial mixing step before extrusion of the composite material insures substantial mixing and melt contact between molten polymer and wood fiber . the extruded pellet comprises a consistent proportion of polymer , wood fiber and water . during the extrusion , water is removed intentionally to dry the material to a maximum water content of less than about 10 wt -% based on the pellet weight . to make a structural unit , the pellet is introduced into an extruder or injection molding apparatus wherein , under conditions of temperature and pressure , the composite pellet material is shaped into a useful cross - section . alternatively , the extruded thermoplastic mass , in the form of a elongated linear extrudate without a pelletizing step , can be immediately directed after formation into an extruder or injection molding apparatus .

a thermally printable commercially functional cash register tape produced from a thin machine direction oriented , heat stabilized , multi - layer , coextruded thermoplastic film is described . this thermoplastic tape replaces the currently used paper cash register tape . it will accept printing , has sufficient machine direction stiffness and sufficiently reduced surface electrical charges to function in conventional commercial cash register printers . the thermoplastic tape is much thinner than the conventional paper tape so a roll of the plastic register tape contains about 4 . 7 times the paper length of a typical cash register roll .

a system and method for gasification of a feedstock in a subterranean formation to produce syngas is described . an injection well is completed in the formation to inject an oxidant , provide an ignition source and convey the feedstock that includes water and one or more of a biomass , waste plastic , coal , bitumen and petcoke . volatized hydrocarbons and gaseous reaction products are simultaneously withdrawn from a producer well from the subterranean formation to the surface . this syngas product is treated at the surface for power generation or conversion to transportation fuels and / or plastics . this method provides a low capital cost gasification unit which is capable of processing a variety of feedstock mixtures .

improved implantable microstimulators are covered with a biocompatible polymeric coating in order to provide increased strength to the capsule and to capture fragments of the microstimulator should it become mechanically disrupted . such coating also makes the microstimulator safer and easier to handle . the coating may include one or more diffusible chemical agents that are released in a controlled manner into the surrounding tissue . the chemical agents , such as trophic factors , antibiotics , hormones , neurotransmitters and other pharmaceutical substances , are selected to produce desired physiological effects , to aid , support or to supplement the effects of the electrical stimulation . further , microstimulators in accordance with the invention provide systems that prevent and / or treat various disorders associated with prolonged inactivity , confinement or immobilization of one or more muscles . such disorders include pressure ulcers , venous emboli , autonomic dysreflexia , sensorimotor spasticity and muscle atrophy . the microstimulator systems include external control for controlling the operation of the microstimulators . the control includes memory for programming preferred stimulation patterns for later activation by the patient or caregiver .

the present invention is an implantable cable and a process to manufacture said implantable cable . the cable is composed of a biocompatible fluoropolymer , in which biocompatible conductor wires are embedded . the entire cable is heat treated at various stages to ensure the wires are securely embedded . the cable is then undulated to enhance its pliability and flexibility . further treatment activates the outer surface of the cable , following which it may be encapsulated in silicone .

this invention relates to medical technique and more particularly it relates to biodestructive materials used to manufacture elements for fixation of bone fragments . said material contains a matrix of non - toxic polymer resolvable in the body consisting of hydrophilic and hydrophobic repeat units , and a reinforcing component of non - toxic fibres or threads resolvable in the body . the matrix polymer is preferably a copolymer of methyl methacrylate and n - vinyl pyrrolidone , and the reinforcing component is preferably fibre or threads of polyamide and oxycellulose . said material can be used in medicine for fixation of bone fragments in fractures or injuries of bones .

barrier / sealer compositions impart at least biostatic activity to porous substrates , particularly architectural building materials , such as wood products , providing extended protection against the development of damaging fungi , such as mold , mildew and yeasts , as well as bacterial infestation . the protective sealer compositions comprise at least one antimicrobial agent , such as a fungicide and a film forming combination comprising a continuous film forming polymer and a water repellent compound . the spectrum of activity can also be potentiated to impart expanded biocidal activity to effectively kill and clean infected porous substrates and extend the useful life expectancy of architectural building materials by the introduction of other additives , including peroxide and antibacterial quaternary ammonium compounds .

the invention provides a molded valve leaflet containing a molded biopolymer having fibrils and cells within the molded biopolymer , wherein the fibrils of the molded biopolymer have commisure - to - commisure alignment . the invention also provides a valve equivalent containing a plurality of molded valve leaflets that are connected to a base , wherein the molded valve leaflets include a molded biopolymer having fibrils and cells within the molded biopolymer , wherein the fibrils of the molded biopolymer have commisure - to - commisure alignment .

an extrusion system for extruding a layer of a plastic or rubber material onto a work piece without having to continuously adjust the extrusion system during the “ set - up ” mode to “ full - run ” mode , wherein the extruded layer exhibits a predetermined cross - section size and a uniform wall gauge concentricity .

a degradable polyester stent is disclosed , which includes a polyester composite , wherein the polyester composite is produced from a biodegradable polyester and a metal - based material . a method of preparing the degradable polyester stent is also disclosed . the method can improve the mechanical properties of the biodegradable copolymer stent and can achieve the radiopacity of the main body and the overall of the stent .

a method for bonding two dvd halves which are so held at a distance as to form a gap therebetween , includes introducing into the gap an adhesive and spreading the adhesive across both disc halves . the invention is characterized by introducing the adhesive via a central opening of the dvd by means of e . g . l - shaped metering needles which are pivotally guided in a central pin that engages the central opening , or flexible plastic needles which are slidably guided in a guide tube . through introduction of the adhesive via the central opening enables a flow to the outside , without interference from the metering needles , when the dvd halves rotate . there is no buildup of adhesive in front of the metering needle . the bonding process can be carried out without interruption of the application of adhesive until the spin - off has concluded .

a novel asymmetric filter membrane , and process for making is disclosed in several exemplary versions . the membrane structure is physically robust and suitable for use in a wide variety of applications . the support membrane is may be comprised of material such as a porous silicon or a silicon oxide , and the separation membrane may be comprised of material such as a polymer , zeolite film , or silicon oxide . the process relies on steps adapted from the microelectronics industry .

a technique is disclosed for recapturing and recycling biomolecule reagents . the technique may be applied in a range of settings , including biopolymer synthesis , sequencing , and so forth . biomolecule reagents such as nucleotides and oligonucleotides used to process nucleic acids , which may be marked with fluorescent tags , carry blocking agents , and so forth , are introduced to samples in a sample container . after the desired reaction occurs with some of the biomolecule reagents , such as some of the nucleotides or oligonucleotides , the effluent stream is processed to recapture unreacted biomolecule reagents . these may be separated from other reaction components , and recycled into the same or a different sample container . the recaptured biomolecule reagents may be mixed with additional biomolecule reagents prior to reintroduction to the same or different samples .

a biocompatible coating , such as for a fiber , for solid phase microextraction of a small molecule of interest from a matrix , with the coating having an extraction phase including spme particles having pores dimensioned to absorb the small molecule of interest from the matrix and a biocompatible polymer being a polyacrylonitrile or a co - polymer of polyacrylonitrile that completely covers the spme particles and homogeneously distributing the spme particles therein and having reduced adsorption of proteins or macromolecules onto the spme particles and allowing the spme particles to extract the small molecule of interest from the matrix .

a humane whip for use in horse racing comprises an elongate self - supporting spine of glass fibre , carbon fibre or the like , surrounded by an outer flexible sleeve of rubber or soft plastics material . shock - absorbing members are disposed between the inner spine and the surrounding sleeve , and may comprise internal ribs on the sleeve and the air trapped between the spine and sleeve . the soft flexible sleeve has a reinforcing layer which inhibits stretching of the sleeve at least in the longitudinal direction . the tips of both the inner spine and the outer sleeve are each formed with an enlarged bulb .

a scraper for a scraper chain conveyor , having a top web , on which a chain attachment region for connecting the scraper to a scraper chain is configured , and having scraper wings for guiding the scraper on side profiles and bottom of a scraper chain conveyor . in order to provide scrapers with which a higher conveying output or a reduction of the drive output to be installed can be achieved , and which also enable a worn or defective scraper to be changed below ground , it is provided according to the invention that the scraper wings consist of a holding portion anchored to the metallic top web and a plastics sliding insert which can be releasably fastened to the holding portion . for the sliding inserts and their retention , various embodiments are proposed .

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 method is disclosed for sealing or closing off the open end of a multilayered tubular structure , especially one having a barrier or low - gas permeable layer , whereby the integrity of said barrier layer is maintained . the method gives rise to a multilayered parison structure which comprises a cylindrical body having a body wall , an open portion terminating at one end thereof and a bottom wall at the opposite end of said body , said body and bottom walls being composed of a plurality of layers bonded together , all the layers of said bottom wall extending fully inwardly in contacting and overlapping relationship with like layers along the longitudinal axis of said cylindrical body , and a balancing member attached to said bottom wall , said member being composed of a single layer material forced therefrom while in a plastic state .

the present invention discloses a drug delivery system comprising at least one hydrophobic matrix and at least one pharmaceutically active compound . the hydrophobic matrix comprises at least one hydrophobic solid component and at least one hydrophobic liquid component . the pharmaceutically active compound may comprise a biological cell or a biopolymer . the hydrophobic matrix conserves the activity of and protects the functionality of the biological cell or biopolymer in hostile environment , at elevated temperature , cold temperatures or a combination thereof . the present invention also discloses the use of the drug delivery system in a kit for diagnostic or analytical purposes . additionally , the present invention discloses the use of the drug delivery system to deliver the pharmaceutically active compound to a subject who has or is suspected of having a pathophysiological condition .

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

the invention provides a lenticular lens type three - dimensional image display device and a method of fabricating the device without a need for a clear plastic substrate transposed between the image and lenticular lenses . the device can be obtained by directly printing curable coatings onto the image , making them particularly well suited for volume production . the combination the image printing and application of curable coatings process can be joined together to conduct the single pass - process . the single pass - process allows for flexibility of the printing only selective areas of the substrate . moreover , this process allows the device to be recyclable .

a method for manufacturing a stress - resistant part made of a composite material , wherein the composite material is forced to flow in a channel belonging to a mold and delimited by a selectively heated wall , the fibers of the composite material assuming a statistically preferential orientation by means of the flow . the composite material comprises a thermosetting resin , the flow of this material in the channel and the heating of the wall of the channel are concomitant , and the temperature of the channel and the flow velocity of the composite material in the channel are determined with respect to each other so that the composite material flowing in this channel forms a fluid line , the mean cross - section of which decreases during the flow of this material in said channel due to the polymerization of the resin .

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

disclosed is a method for the production of thermoplastic polymer dispersions , using a reaction vessel with a first volume and a secondary volume , wherein a first stirrer is located and operative in said first volume and a secondary stirrer is located and operative in said secondary volume , wherein the first volume is at least 20 times larger than the secondary volume , wherein the stirrers in both volumes are able to handle viscosities above of or equal to 1000 mpas , including the steps of a .) loading the first volume of the vessel with an initial amount of polymer and optionally water and optionally alkaline ; b .) heating the vessel externally to a target process temperature in the range of 80 - 300 ° c . ; c .) operating the first stirrer in the first volume for at least half an hour at a speed of in the range of 10 - 100 rpm ; d .) addition of water and optionally alkaline to the first volume ; e .) connection of the secondary volume to the first volume and operating the secondary stirrer in the secondary volume at a speed of above 1000 rpm and recycling the reaction product through said secondary stirrer while keeping the operating temperature essentially constant during a timespan in excess of the recycle ratio3 of the primary and the secondary mixer to form the dispersion . furthermore disclosed is a dispersion as obtainable using such a method and a reaction vessel for carrying out such a method .

apparatus provided for reducing the volume of trash generated from plastic bottles and containers whether destined for landfill or not . the apparatus includes a shredder mounted within an aesthetically pleasing and functionally suggestive beverage bottle shaped housing . a chute with a plunger is provided which forces the plastic bottles against blades rotated on a substantially horizontally mounted disk with a fan for directing the shredded particles into a duct for transport to a bin within the bottle shaped housing . a pan structure is provided to collect any fluid remaining in the bottles being shredded and directed via a duct to the bin .

a method of encapsulating and sterilizing waste material is disclosed . medical waste is deposited inside of a mold . when full , the mold is charged with plastic and one of several reactants . the mold is then heated while rotated biaxially . the heat simultaneously sterilizes the waste and causes the charging materials to expand and envelop the waste , encapsulating it . the mold is then cooled while spinning biaxially , forming a hollow brick of solidified , encapsulated material in the mold . the brick of material is removed and pulverized into granules . the pulverized material is separated and readied for recycling .

a method of addressing and driving an electrode array includes the step of addressing one or more electrodes within the array using a plurality of row and column lines . in one aspect of the method , a value corresponding to a voltage is stored in a local memory associated with each electrode . the addressed electrodes are then driven at the voltages corresponding to the stored values . in another aspect of the method , a driving element associated with each addressed electrode is selectively coupled with a voltage line so as to charge the electrode with the voltage on the voltage line . the device and methods may be used in the synthesis of biopolymers such as oligonucleotides and peptides .

a method of making an inorganic slurry , forming the inorganic slurry into a useful article and method of removing the solvent medium from the formed article . the slurry contains an inorganic powder , water , dispersant , thermally gelable polymeric binder and optionally a plasticizer . the method comprises admixing the inorganic powder , water and dispersant to form a blend . the blend is a ball milled , heated , and admixed with a thermally gelable polymeric binder to form a slurry mixture , then the mixture is cooled . the slurry mixture can be extruded to form useful articles , such as metal or ceramic tapes . additionally , the invention is also a method of final shaping and removing solvents from the formed article . a heated calendar roll stack assembly is used to rapidly remove the solvent from the article . when sintered , the resulting article is very dense and exhibits substantially no voids .

a polymeric powder coating composition which comprises : polymeric powder coating resin and at least one low molecular weight copolymer salt having a degree of saponification neutralization upto 100 %. the powder coating composition may be applied to articles using conventional techniques . processes for producing the polymeric powder coating compostiions , and articles comprising the same are also disclosed .

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 .

in applications involving interleaving membranes with separators , for bioreactors , dialyzers , and membrane filters and the like , shrinkage of the separator , preferably made of polypropylene , polyamides , or polyethylene terephthlate fiber web , is avoided , and the need for the use of exotic and expensive fluorinated hydrocarbon polymer materials for such separators is avoided by subjecting the separator to untensioned heating at temperatures of from about b 120 l degrees c ., up to a temperature less than the glass transition or melting temperature of the polymer web under wet steam at a pressure of from about 1 . 0 to about 2 . 0 atmospheres for a time of at least about 20 minutes .

there is disclosed printing apparatus composed essentially of molded plastics material which has relatively few parts , is easy to manufacture and maintain , and is lightweight and portable . the apparatus is illustrated as being of the table top type which can print both standard type tags and labels , string tags and pin tickets . the apparatus has a print head operable in conjunction with an impression control device , a feed finger assembly with a registration adjustment , a simple drive arrangement operated by a cam with a single cam path , and a reel positionable at different attitudes , and the construction of the apparatus is readily adaptable to both manually operated and motorized versions .

a molded body may comprise a thermoplastic matrix comprising a first polymeric material , a second polymeric material distributed in the thermoplastic matrix , and a third polymeric material enveloped by the second polymeric material . the first polymeric material , the second polymeric material , and the third polymeric material are compounded together . the first polymeric material may have a first molecular weight and a first polarity . the second polymeric material may have a second molecular weight different from the first molecular weight and a second polarity different from the first polarity . the third polymeric material may comprise a recycled material .

a method and apparatus for manufacturing recloseable plastic bags with engageable mating profiles where the bags are provided open for the consumer . the profiles are initially provided in the fully engaged condition within an elongate , longitudinally cut tube . the profiles are then periodically fused , tacked , or attached together at the approximate locations where the tube is to be cut into bags . upon tacking , the profiles are pulled apart by frictionally engaging an area on the outside of the film , near the profiles , and between the tacks . the film is then forced away from the profiles , which at least partially pulls one profile from the other . thereafter , the tube may be cut and sealed into bags as would otherwise normally occur .

a tool for use in stretching or elongating an axle ring so that it may be removed from an associated axle . a lever with an elongated nose impacts against a narrow band across the width of the axle ring and produces a peening or plastic flow action to elongate the ring . the tool includes means for locating itself on the axle to properly position the nose both axially and radially .

a method for coating laminate and composite wood products with a polymer coating . the method includes providing a wood substrate consisting of an engineered or composite wood product , applying a flowable but thixotropic polymer coating material to the surface of the substrate , distributing the polymer coating material evenly across the surface of the wood substrate to create a continuous smooth surface , and allowing the polymer coating material to bond to the surface of the wood substrate to form a hard smooth surface over the wood substrate surface .

a durable one - piece plastic container having a bottom , upwardly extending cylindrical sidewalls and a rim extending circumferentially around the top of the cylindrical side wall . the side wall is interspersed with gussets and flutes providing support for the side wall . the flutes run over the edge of the bottom of the container forming handles . on the top of the container there are primary and secondary rims forming a 360 degree continuous handle surrounding the entire container perimeter for easy lifting of the container .

a method of terminating , under emergency conditions , an olefin polymerization reaction conducted in the presence of a transitioned metal based catalyst in a gas phase reactor by using a recycle gas from the reactor or a feed stream to the reactor to operate an expander associated with a circulator which maintains fluidized conditions in the reactor while introducing a kill gas into the reactor to terminate the reaction .

the invention relates to a method for pre - cleaning parts made of plastic as part of a recycling process , wherein foreign bodies to be removed adhere to the parts , in particular for removing foreign bodies on parts made of plastic , preferably for removing labels , dirt , etc . on used plastic bottles , said method being characterized in that the foreign bodies are removed from the parts by mechanically loading the parts . a device for applying the method is characterized by a housing having a chamber for accommodating the parts , means for mechanically acting upon the parts and means for separating the foreign bodies released from the parts and for discharging the foreign bodies and parts onto separate paths being provided in the chamber .

polymeric hydrocarbons having reactive borane groups at chain ends or in the polymer chain are described . these types of polymers can be used as intermediate materials for preparing a broad range of polymers which have functional groups located at both ends of the polymer chain . the process of preparing the borane - containing polymers involves metathesis degradation of the polymer at the double bond locations in the backbone and simultaneous functionalization of the broken chain ends by borane monomers . depending on the nature of the borane monomer , the location of boron atoms can be controlled to be at either the chain ends or in the polymer backbone . the concentration of boron in the resulting polymer is related to the reaction time and the mole ratio between borane monomer and the double bonds in the starting hydrocarbon polymer . in turn , the borane groups are interconvertible to various functional groups , such as oh , nh 2 , and halides , under mild reaction conditions . overall , the chemistry is very general and is applicable to most hydrocarbon polymers . a wide variety of telechelic polymers are obtained .

a microbial system is provided for selective plugging of permeable regions of a subterranean formation , for use in conjunction with injection of surfactant - containing foams . bacteria indigenous to the target formation are isolated , and selected for ability to degrade the surfactant of interest . small , non - adherent ultramicrobacteria , or umb , are prepared from the selected culture by starvation . the umb and the surfactant - containing foam are then injected into the target formation . the surfactant allows the foam to penetrate into the formation . the umb then revive to their vegetative state , degrade the surfactant and produce exopolymer , thus plugging the formation .

bioactive agents are embedded in a cross - linked dextran and coated with a bioresorbable polymer . when implanted in a mammal , the coated cross - linked dextran composition produces controlled release of the embedded bioactive agent .

a clamping frame for a plastic sheet thermoforming apparatus and which is designed for gripping and retaining the peripheral edge of the plastic sheet . the frame includes a pair of pivotally interconnected jaws which are pivoted between open and closed positions by an air cylinder actuator . the actuator is mounted to one of the jaws , and the operative pressurized air is fed to and removed from the actuator via fluid delivery lines which are located within the interior of the jaw to which the actuator is mounted . external air hoses are thereby avoided , and the air streams which flow through the jaw have a cooling effect .

a prosthetic heart valve of the bi - leaflet type is provided that includes an annular structure comprised of biocompatible plastic and a pair of bearing blocks and a pair of leaflets equipped with ear - like projections that are all comprised of pyrolytic carbon . the leaflets associate pivotably with the bearing blocks , and , with the bearing blocks and the leaflets being initially held in a connected relationship , the annular structure is molded and formed about perimeter portions of the bearing blocks . the valve has a simple structure , yet is durable and reliable .

the present invention provides a ballast circuit and method for fabricating the same for multi - electrode corona discharge arrays . the circuit includes a conductive plastic material and at least one corona electrode protruding from the conductive plastic material . the distance between the plastic material and the corona electrode varies and controls the electrical resistance and determines the voltage breakdown of the circuit . additionally , a particle collection surface may preferably be located within the conductive plastic material or preferably be separated from the material depending on the circuit design and configuration .

phenolic n - imides are provided which are useful as antioxidant stabilizers for organic materials , including a large variety of synthetic polymers , typically subject to thermooxidative degradation . the antioxidant effectiveness of the phenolic n - imide stabilizers is enhanced by the deactivating potential of the amido - imide moiety towards metals or metal ions that frequently contaminate polymer compositions and serve to catalyze thermal degradation .

polymers capable of reversibly complexing carbon dioxide and other acid gases and a method of producing such polymers are disclosed . in a preferred embodiment , the present polymers incorporate amine groups capable of reversibly complexing carbon dioxide to produce an environmentally safe foamed polymer product . because the reaction of an amine and co 2 is a reversible reaction , and because the amines are incorporated into the polymer backbone , the foamed polymers can be reverted to foamable polymers simply by collection , washing , granulating , and re - exposure to co 2 . the polymers are environmentally desirable as carbon dioxide is non - toxic and is easily isolated from the atmosphere . moreover , the process recycles the gas continually , rather than generating new gases .

the present invention provides a resilient absorbent foam containing starch , a superabsorbent material and a plasticizer . the absorbent foam is highly absorbent , dimensionally stable , resilient and flexible as well as biodegradable and flushable . additionally provided is an absorbent foam comprising starch and a plasticizer , which is highly resilient and flexible . the present invention also provides an absorbent article containing the resilient absorbent foam .

dioxetane compounds reactable with an enzyme to release optically detectable eneregy are disclosed . these compounds have the formula : ## str1 ## wherein t is a cycloalkyl group or a fused polycyclo - alkylidene group bonded to the dioxetane ring through a spiro linkage ; y is a fluorescent chromophore capable of absorbing energy to form an excited energy state from which it emits optically detectable energy to return to its original energy state ; x is hydrogen or an alkyl , aryl , aralkyl , alkaryl , heteroalkyl , heteroaryl , cycloalkyl or cycloheteroalkyl group , or an enzyme - cleavable group containing a bond cleavable by an enzyme to yield an electron - rich moiety bonded to the dioxetane ring , z is hydrogen , hydroxyl or an enzyme - cleavable group containing a bond cleavable by an enzyme to yield an electron - rich moiety bonded to the dioxetane ring , at least one of x and z being an enzyme - cleavable group , and t also includes a substituent which enhances the solubility of the dioxetane in aqueous solution , or a substituent which facilitates bonding of the dioxetane to a membrane , film , bead , polymer or polymerizable group , or a substituent which enhances the kinetics of the dioxetane enzyme degradation .

a material that can be applied as implants designed to artificially replace or augment the cornea , such as an artificial cornea , corneal onlay , or corneal inlay is provided . the artificial corneal implant has a double network hydrogel with a first network interpenetrated with a second network . the first network and the second network are based on biocompatible polymers . at least one of the network polymers is based on a hydrophilic polymer . the artificial cornea or implant has epithelialization promoting biomolecules that are covalently linked to the surface of the double network hydrogel using an azide - active - ester chemical linker . corneal epithelial cells or cornea - derived cells are adhered to the biomolecules . the double network has a physiologic diffusion coefficient to allow passage of nutrients to the adhered cells .

a granulator primarily intended for in situ use in combination with an injection molding machine such that plastic scrap such as sprues and runners generated in such formation of plastic parts may be granulated thereby . the granulator is adapted for disposition within the confines of the injection molding machine and particularly within the drop out area thereof . a pair of rails guide the granulator in such drop out area and enable it to be laterally withdrawn to one side of the molding machine for repair , parts changes , cleaning and the like . the specific construction of the granulator includes a pair of meshed paddle rolls serving as a combination metering and feed device and removal means to remove granulated material to that end of the granulator disposed proximal said one side of the machine so as to enable efficient and quiet in situ granulation of plastic scrap generated from the injection molding procedure in a manner heitherto unattainable .

high productivity polarizing lens that is impact - resistant , and is not prone to warping or iridescent patterning and other color irregularities . polarizing lens includes a polarizing sheet in which a pair of protective films and is laminated on both sides of a polarizing film , and a lens base material layer integrally bonded on a rear side of the polarizing sheet , the lens base material layer being composed of polyurethane . manufacturable by : bending the polarizing sheet at a predetermined curvature ; fitting the polarizing sheet in a mold recessed with a cavity contoured to correspond to the bent polarizing sheet so that its front side runs along the cavity ; and filling and injection - molding thermoplastic polyurethane into the mold in which the polarizing sheet has been fit , to form the lens base material layer on the polarizing sheet rear side .

a continuous , uninterrupted two - step treatment process capable of forming nanometer scale physical structures on the surface of articles fabricated from metallic , ceramic , glass , or plastic materials , and then depositing a thin conformal coating on the nanostructured surface such that the physical structures previously produced are neither masked nor are the dimensions of the physical structures substantially altered . in an additional embodiment , a thicker coating can be grown from the thin conformal coating which itself can be nanostructured as it is deposited . in this case adhesion of the thicker coating is not dependent upon the use of conventional surface pretreatments such as machining , chemical etching , or abrasive blasting . surface texturing may be performed by ion beam sputtering , and ion assisted coating forms the thin conformal coating , and thicker coating if desired . the treatment process is useful for improving the mechanical , catalytic , chemical , or biological activity of the surfaces so treated . the process thus has application on industrial machinery and equipment of all types , engines of all types , manufacturing tooling and wear parts of all types , and medical equipment and prostheses .

a blow - molded plastics bottle having a neck , a side wall and a base , includes an internal spider attached to the side wall of the bottle . the spider and the side wall are formed from biaxially - oriented plastics such that the strength of the bottle is increased and such that the bottle resists the pressures caused by the contents thereof .

a polymer blend that contains a polymer of fluorinated monomers and another biocompatible polymer . the polymer blend can form a coating on a medical device . the medical device can be used for treat , prevent or ameliorate a medical condition .

a biodegradable polymer is provided for use in providing syringeable , in - situ forming , solid biodegradable implants for animals . the polymer is placed into the animal in liquid form and cures to form the implant in - situ . a thermoplastic system to form said implant comprises the steps of dissolving a non - reactive polymer in biocompatible solvent to form a liquid , placing the liquid within the animal , and allowing the solvent to dissipate to produce the implant . an alternative , thermosetting system comprises mixing together effective amounts of a liquid acrylic ester terminated , biodegradable prepolymer and a curing agent , placing the liquid mixture within an animal and allowing the prepolymer to cure to form the implant . both systems provide a syringeable , solid biodegradable delivery system by the addition of an effective level of biologically active agent to the liquid before injection into the body .

the present invention provides a novel method for forming hook elements directly on a fabric substrate . in the method of present invention , melted plastic material is injected into cavities of a molding roll ; excessive plastic material is scraped from a peripheral surface of the molding roll with a scrapper ; a web of fabric substrate is bonded to the hooks molded in the cavities through a thermo - pressing process by using a thermo - pressing roll ; and the combined hooks and fabric substrate is cooled and removed from the molding roll to form a fabric material with a hook strap . the present invention also provides an apparatus for performing the method of the present invention .

a method introduces additives into flowing or fluidised media . the spatially predetermined position of the additives in the flowing material , also called fluid bed , is obtained by controlling the pulsating injection , the introduction and exact dosing of additives , that is hardeners , dyes , gas producers and softener for instance , into a liquid plastic stream or metal stream for instance , or the fluid bed of bulk material , such as powder , granules and pellets , is carried out by means of an injector . the invention is used in melting units , in hot channel systems , in tools , componens of tools and injection moulding machines , extruders , injection moulding , pelleting , burner and injection arrangements . the nozzle needle of at least one nozzle , respectively , is variable and highly precisely moved for the introduction by means of a device and in such a way that additive is dosed exactly in relation to the volume flow of the medium and that a pulsating stream is injected into the medium flowing past , by means of at least one well - aimed nozzle opening . the additives are dosed by means of a pressure that can be variably adjusted by pulse width and pulse frequency . the desired homogenous distribution is obtained by the penetrating injection jet during compounding .

a sustained release parenteral composition comprising an admixture of at least one drug to be delivered in a therapeutically effective amount and a bioabsorbable lactone polymer containing one or more lactone monomers that is a liquid at body temperature , provided in an amount effective to sustain or extend the release rate of the drug and a method for administering said composition to an animal .

multiple poly layer interlayers that can be used in multiple layer glass panel type applications that require a high level of impact protection , for example in hurricane protection applications or in bullet proof glass applications . this effect is achieved by forming a poly interlayer that has a relatively stiff poly inner layer disposed between two relatively soft outer poly layers , where the stiffness difference is achieved by a plasticizer differential that is achieved at least in substantial part by a residual hydroxyl content difference among the poly layers .

novel bioartificial hydrogels consisting of a three - dimensional crosslinked mixture of : a bifunctionalized polyethylene oxide , activated with an activating agent , dissolved in an aqueous solution ; and albumin type protein . the novel hydrogels are based on the crosslinking of albumin type protein of various sources including , for example , bovine serum albumin , lactalbumin or ovalbumin , with a bifunctionalyzed polyethylene oxide , most preferably polyethylene glycol , or a mixture of bifunctionalyzed polyethylene oxides preferably polyethylene glycol , of various molecular masses , dissolved in aqueous solution in adequate proportions . also provided is a method and conditions for preparing the novel hydrogels . also divulged are a variety of biomedical applications for the novel hydrogels . additionally , it has been found that the mechanical properties of the novel hydrogels can be improved by adding to the casting solution unreactive polyethylen glycol or other inert polymer of high molecular masses . in general terms the novel hydrogels possess advantageous properties such as shape retention and shape memory , high water content based on the dry weight of the hydrogel ), good mechanical and optical properties .

the present invention discloses a process for manufacturing monovinylaromatic compounds containing an elastomer to provide increased toughness and strength . one particular embodiment of the invention discloses a process for manufacturing high impact polystyrene wherein styrene monomer containing a dissolved polybutadiene rubber is flowed into an elongated upflow stirred reactor containing three reaction zones , wherein the styrene and rubber are polymerized past the inversion point , then discharged to at least one additional reactor to continue their conversion to polymer .

apparatus including an extruder , a die member and a vacuum device connected in series . the vacuum device includes a chamber and a device at at least the outlet thereof to air - tightly seal the chamber around the extruded mass of foamed thermoplastic resin . the air - shielding or sealing device is an annular tube which is inflatable radially inwardly having a flexible inner face which seals around the extruded mass . a durable , abrasion - resistant , flexible protective sheet can be interposed between the mass and the tube .

current chemotherapeutic approaches for cancer are in part limited by the inability of drugs to destroy neoplastic cells within poorly vascularized compartments of tumors . we have here systematically assessed anaerobic bacteria for their capacity to grow expansively within avascutar compartments of transplanted tumors . among 26 different strains tested , one appeared particularly promising . we created a strain of c . novyi devoid of its lethal toxin and showed that intravenously injected c . novyi - nt spores germinated within the avascular regions of tumors in mice and destroyed surrounding viable tumor cells . when c . novyi - nt spores were administered together with conventional chemotherapeutic drugs , extensive hemorrhagic necrosis of tumors often developed within 24 hours , resulting in significant and prolonged anti - tumor effects . this strategy , called combination bacteriolytic therapy , has the potential to add a valuablle dimension to the treatment of cancer .

a labeler for labeling plastic containers in the blow mold in a rotary blow molder , with a blow wheel having arranged thereon a plurality of blow molds with a lowerable blow mold bottom , and at least one label dispenser used for providing tubular labels . the blow mold bottom is implemented such that a label can be introduced via the blow mold bottom into the blow mold before the blowing process takes place , which facilitates a spatial separation of the label supply from the feeder star wheel of the blow wheel and allows a substantially simultaneous insertion of the label and of the preform .

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 .

an organizer for take - out menus comprises a plastic folder of a size conveniently held in one hand and stored in a kitchen drawer or like area . the folder is made of multiple layers that provide pockets for permanent insert cards that stiffen the folder and , optionally , provide decorative and / or informational data , and pockets for receiving take - out menus of various sizes and configurations in a manner that displays such menus for quick identification , retrieval , reference and return .

an iontophoretic structure for medical devices is provided that uses controlled electrical current derived from two dissimilar galvanic materials to drive oligodynamic metal ions into solution to kill bacteria on and near the device to which the structure is affixed . in one embodiment , a first galvanic material separated from a second galvanic material by a resistive material produces an anti - bacterial current flow when placed in contact with an electrolytic fluid . in another embodiment , a cylindrical elastomeric catheter incorporates a first and a second galvanic material separated by a resistive material which controls a current flow between the galvanic materials when the catheter is immersed in an electrolytic fluid . the galvanic materials can be dissimilar metal powders embedded in a conductive polymer substrate that forms an iontophoretic composite material , or dissimilar metals arranged in layers separated by a resistive layer . in yet another embodiment , the iontophoretic composite material is configured as an infection control sleeve that covers a portion of an ordinary catheter or cannula . methods of protecting implantable medical devices and body structures with the iontophoretic structures are also provided .

a method of treating or ameliorating an indication of mucosal or adjacent tissue comprising periodically applying to mucosa at or adjacent to disease affected tissue a rinse comprising : an effective amount of appropriate composition of herbal bioactive comprising active of one or more of sambucus nigra , centella asiatica or echinacea purpurea ; an antimicrobially effective amount of a quaternary ammonium surfactant ; and optionally a polymer or mixture of polymers effective to coat said tissue and entrap said extract .

a composite vehicle body panel includes a fiber reinforced plastic panel and a steel flange disposed in the fiber reinforced plastic panel and having an edge protruding outward from the fiber reinforced plastic panel beyond an outer edge of the fiber reinforced plastic panel . the composite vehicle body panel can be used in vehicle structures manufactured on standard vehicle productions lines , thereby easing vehicle manufacturing , improving productivity , and providing increased rigidity to the vehicle bodies . a method of manufacturing the composite vehicle body panel and a vehicle structure using the panel are also provided .

a thermally insulated disposable container for pizzas , pies or other round , flat food items is formed of a unitary sheet of plastic foam material with lower and upper sections each formed with a round flat member and a drafted side wall . an integral , flexible hinge connects a portion of the rim of each of the upper and lower sections , so that the sections can be closed with the pizza or other food item contained inside . tabs which extend from the side walls of the container carry a velcro or similar filament pile engaging material to permit the upper and lower sections to be releasably close to one another by the tabs and the engaging materials . in one version , radial ribs in the lower section divide the same into wedge - shaped compartments so that pie wedges of different types of pies can be kept segregated from one another .

a chemical composition including a moiety comprising a quencher , a tethering element , and a ligand that associates with and quenches a fluorescent polymer is disclosed . when an analyte sample is introduced , the ligand binds to a target biological agent if it is present , thereby causing the qtl molecule to separate from the fluorescent polymer resulting in an increase in detected fluorescence . the same chemistry is advantageously employed in a competitive assay . an electric field can also be applied to separate the qtl molecule from the fluorescent polymer . a method for detecting targets for these methods are also disclosed .

a novel peg apparatus adapted for mounting onto various axles types . the device provides either fixed or roller action as preferred by the user . the roller action affords enhanced operating performance and safety in terms of end user satisfaction in each area of potential use . the peg includes an outer sheath made of one of a number of an industrial grade plastic which rotates around the threaded , fixed , mandrel and glides over various surfaces or , which may be locked in a static position to provide a skidding , or “ grinding ” effect .

the invention relates to a dynamic mold seal for use in a method of molding apparatus to mold a polymeric frame or gasket onto the periphery of a glass sheet . the seal and method are preferably utilized to form a vehicle window .

an aircraft conveyor system comprising an aircraft including an aircraft cargo storage bay ; and a roller mounted within the aircraft cargo storage bay , the roller including a one - piece integral body having a cylindrical shape , the entirety of the body being made solely out of a single piece of polymeric material , said body having a length extending from a first outermost end to a second outermost end and a diameter and a first and second exterior shoulders at the ends , said body including an aperture extending longitudinally along and through the center of said body from the first outermost end to the second outermost end , the aperture sized to rotatably receive an axle therethrough , the axle being for mounting the roller within the aircraft cargo storage bay , wherein the roller has a burn rate of less than 4 . 0 inches per minute .

random block copolymers having the formula : ## str1 ## wherein r 1 is -- ch ═ ch -- or j , in which j is zero or an integer from one to eight ; r 2 is selected from hydrogen , straight and branched alkyl and alkylaryl groups containing up to 18 carbon atoms and derivatives or biologically and pharmaceutically active compounds covalently bonded to said copolymer ; each r 3 is independently an alkylene group containing up to 4 carbon atoms ; y is an integer between about 5 and about 3000 ; and f is the percent molar fraction of alkylene oxide in the copolymer and ranges between about 1 and about 99 mole percent . implantable medical devices and drug delivery implants containing the random block copolymers are also disclosed , along with methods for drug delivery and for preventing the formation of adhesions between injured tissues employing the random block copolymers . polyarylate random block copolymers are also described .

an ink jet printing process , having the steps of : a ) providing an ink jet printer that is responsive to digital data signals ; b ) loading the printer with an ink jet recording element having a support having thereon in order : i ) at least one porous , ink carrier liquid receptive layer ; ii ) a fusible , porous dye - trapping layer of fusible polymeric particles , a binder , and a dye mordant ; and iii ) a fusible , porous ink - transporting layer of fusible , polymeric particles and a film - forming , hydrophobic binder ; c ) loading the printer with an ink jet ink compositions ; and d ) printing on the image - receiving layer using the ink jet ink in response to the digital data signals .

an impact protection reinforcing element has at least one outer surface which is conformed to the contour of a surface of at least one vehicle body part in such a way that it may be positioned with extensive contact against the body part in the area of complementary construction and connected firmly to the body part . provision is made for the impact protection reinforcing element to be formed of a fiber / plastics composite . a method of producing the impact protection reinforcing element uses an injection molding process .

an ink jet printing method , comprising the steps of : a ) providing an inkjet printer that is responsive to digital data signals ; b ) loading the printer with ink - receptive elements comprising a support having thereon an image - receiving layer comprising a cationic , water - dispersible , quaternized imidazole - containing polymer ; c ) loading the printer with an inkjet ink composition comprising water , a humectant , and a water soluble anionic dye ; and d ) printing on said image - receiving layer using said ink jet ink in response to said digital data signals .

a cutting tool incorporates a body terminating in cutting edges distal from a chuck mount and having an axial bore for reduced mass to raise from a steel or carbide blank into a cylindrical pipe forming the hollow bore prior to grinding of the cutting edges . filling of the bore with a light polymer to further absorb vibration can also be employed .

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

an optical fiber connector can be easily and quickly assembled by mounting the end of an optical fiber in a thermoplastic adhesive that is heated to a viscosity of between 1000 and 10 , 000 cp , has an adhesion - to - glass value of at least 10n , and a shore d hardness of at least 60 at 20 ° c . the optical fiber connector lends itself to mass - production techniques and can be reused by heating to liquify the thermoplastic adhesive .

formulations and methods for treating wounds utilizing these formulations are disclosed . the formulations accelerate wound healing by providing a unique serum - free cellular nutrient medium that supports wound healing of mammalian skin in the absence of protein growth factors . the protein - free composition contains physiological levels of a retinoid compound . this retinoid - containing composition enhances epidermal wound healing of both normal acute and chronic wounds by stimulating the growth of the adult epidermal keratinocytes without the need of any protein growth factors . the wound healing active composition may be used in combination with a topical wound gel preparation including both proteinaceous and non - proteinaceous biopolymers and hydrogels .

a method for restoring and reusing railroad ties and the resulting product are disclosed . according to the method , otherwise spent wooden ties are sorted as to their apparent suitability for providing a core for reuse . those found unsuitable are discarded , while those found to be suitable are milled or trimmed about their dimensions to define a suitable core . that core is banded about a transverse perimeter and then submitted to a reaction injection molding process by which urethane or other suitable polymers impregnate the various voids , holes and cracks in the core , bond with the bands , and define a finish unit having the overall size and configuration of previously known railroad ties . the encapsulated product is then capped or plugged at the ends to ensure that the resulting product is impervious to penetration by the environment .

an external grid device for an automotive vehicle , including a flexible plastic sieve , and a meshing that is thinner than that of the grid , provided along an internal face of the grid .

the present invention provides a method and reagent composition for attachment of target molecules onto the surface of a substrate , such as microwell plates , tubes , beads , microscope slides , silicon wafers or membranes . in one embodiment , the method and composition are used to immobilize nucleic acid probes onto plastic materials such as microwell plates , e . g ., for use in hybridization assays . in a preferred embodiment , the method and composition are adapted for use with substantially flat surfaces , such as those provided by microscope slides and other plastic , silicon hydride , or organosilane - pretreated glass or silicone slide support surfaces . the reagent composition can then be used to attach a target molecule such as a biomolecule which in turn can be used for specific binding reactions .

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

a closure cap for infusion and transfusion bottles having a rim cap which grips around a rim neck of a bottle and has a cutout which is closed by a plastic lid so that an annular zone of the plastic lid grips below the edge of the cutout to obtain a tightly sealed attachment of the lid this attachment can nevertheless be lifted off with relatively little force due to a radially extending intended - bend line of the plastic lid formed by a thinning of the material .

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

a process for embossing flexible polymeric substrates in a dielectric heating press having a platen and a design fixture by placing an insulating blanket of a composite sheet structure between the substrate being embossed and the platen of the press and embossing the substrate ; wherein the composite sheet structure is an aromatic polyamide fabric coated on both sides with a 2 - 30 mil thick layer of a fluorosilicone rubber and having a dielectric constant of about 4 - 8 and a dissipation factor of about 0 . 015 - 0 . 030 ; the polymeric substrates generally are laminates of thermoplastic polyurethane form / short napped synthetic velour fabric used as upholstery for automobiles and trucks .

the invention provides polymer particles that are obtainable by a method selected from emulsion methods , diffusion methods and evaporation methods carried out in the presence of surface - engineering surfactant which is one or more polymer that displays a lower critical solution temperature , in aqueous media , that is between 10 to 90 ° c ., this polymer being the polymerisation product of one or more monomer selected from polymerisable alkyleneglycol acrylate monomers and polymerisable alkyleneglycol methacrylate monomers . the polymer particles can be used in controlled release applications , such as flavour release applications , fragrance release applications and biomedical applications . the invention also provides a cell support matrix comprising the polymer particles .

polymeric formulations which contain aqueous dispersions of acrylic monomers and copolymers and modified polyethylene terephthalate resin are disclosed which are useful as a coating system or treatment for imparting water , oil and grease resistance to underlying cellulosic substrates . the formulations do not contain any fluorochemicals , polyethylene or wax . moreover , the formulations provide water , oil and grease resistance properties that are an improvement in the art to known coatings and treatments which contain polyethylene and or wax for water , oil and grease resistance . these coatings can also impart improved anti - wicking properties over the existing art . these formulations have interest as they contain components that are permitted to come into direct contact with food products . therefore , the formulations of the present invention are ideal for use as coatings for paper and paperboard , including paper packaging such as that utilized in food wrappers , food containers , food receptacles , etc . in addition , because these formulations do not contain fluorochemicals , polyethylene or wax the resulting paper products can be recycled and repulped .

a hydrogel - metal assembly is provided . an intervening polymer network is used to bond together a water - swollen hydrogel layer and a biocompatible surface - modified metallic layer . the hydrogel layer is a water - swollen hydrogel layer of at least two interpenetrating polymers . the surface of the biocompatible surface - modified metallic layer is surface - modified with an inorganic material . the intervening polymer network has been chemically grafted to the inorganic material of the biocompatible surface - modified metallic layer through bi - functional linker molecules . the intervening polymer network is further physically or chemically cross - linked with the polymers of the water - swollen hydrogel . the hydrogel - metal assembly can be adapted to form a medical device , medical implant , an artificial implant , an orthopedic implant , or at least as part of a joint . the hydrogel - metal assembly is attractive for use as such implants or devices due to its characteristics such as , for example , low coefficient of friction , impact - absorption capacity or strength , and / or biocompatibility .

this application provides , among other things , novel aqueous oral care compositions useful for combining and delivering poorly compatible ingredients , for example to deliver effective levels of cationic antibacterial agents in combination with anionic polymers that protect against erosion and staining , by addition of a stabilizing amount of a polyamine , e . g ., lysine , and methods for making and using the same .

a carrier for transportation of a plurality of bottles comprising a rigid rectangular frame enclosing a plurality of generally hexagonal forms , each form provided with a plastic liner for supporting a bottle while transporting the same through a bottle washing machine .