Datasets:

cwinkler

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patents_green_plastics

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an apparatus and method for forming a plastic container is provided . the method includes disposing a preform into a primary mold cavity and applying pressurized air to urge the preform to conform to the shape of the primary mold cavity to form a primary article . the primary article is then permitted to shrink to a predetermined volume . the method can further include exposing the primary article to an internal vacuum to facilitate shrinking to a predetermined volume . the method further includes disposing the primary article into a second mold cavity and applying pressurized air to urge the primary article to conform to the second mold cavity to form an intermediate article . finally , at least a portion of the intermediate article is trimmed off to form a final container .

an ink jet printing method , comprising 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 comprising a support having thereon a porous image - receiving layer comprising : particles having a primary particle size of from about 7 to about 40 nm in diameter which may be aggregated up to about 300 nm ; and water insoluble , cationic , polymeric particles comprising at least about 20 mole percent of a cationic mordant moiety ; c ) loading the printer with an ink jet ink composition ; and d ) printing on the image - receiving layer using the ink jet ink composition in response to the digital data signals .

a method for the manufacture of low cost &# 34 ; oriented &# 34 ; composite molding compounds using discontinuous fibers embedded in a resin matrix . the method involves the steps of aligning discontinuous fibers by use of a strong electric field while simultaneously inserting the fibers onto a polymer substrate comprised of an uncured resin matrix . a preferred embodiment includes the incorporation of a mesh or a glass capillary array located parallel and adjacent to the polymer substrate to further ensure fiber alignment . after the fibers are attached to the uncured resin matrix , the aligned fibers are forced to lie down parallel along the surface of the polymer substrate by mechanically forcing the fibers flat . the newly formed reinforced polymer films may then be stacked with the fibers of each ply oriented to achieve the desired mechanical properties , and then cured to produce an improved composite laminate which can be machined to form a high strength shaped member .

a conveyor system comprises pairs of vertically spaced and horizontally oriented pulleys and belts that are positioned on opposite sides of a conveyor path . the belts wrap around the pulleys and engage with opposite sides of an object being conveyed by the conveyor , for example an empty plastic blow molded bottle , and convey the object along the conveyor path between the belts . a vertical adjustment mechanism quickly adjusts the vertical positioning of the pairs of pulleys and belts on each side of the conveyor path to quickly adapt the conveyor for conveying different sized objects .

the invention relates to medical devices , in particular condoms / drains , that find use in anastomosis . thus the present invention relates to these medical devices per se , to a medical kit comprising these medical devices , to the use of these medical devices , to a method for medical treatment involving application of these medical devices to an organism who is in need thereof as well as to the use of certain biocompatible , biodegradable synthetic polymers in the preparation of a medical device for the treatment of a disease or a condition which requires anastomosis . the medical devices of the present invention are typically condom shaped and are used for the protection of anastomosis . the devices comprise a tubular shaped part which is made of a biocompatible , biodegradable polymer . the devices may be applied by stapling .

novel bisphenol condensation derivatives including polyphosphorous , polyborate , polycarbonate and polysilicate products which are capped with various capping agents such as phenoxy or alkoxy compounds are efffective stabilizers for a wide spectrum of hydrocarbon polymeric materials against their thermal oxidative and photochemical degradations .

silane - functionalized ultraviolet screening agent precursors comprise compounds of the formula : ## str1 ## wherein r is ## str2 ## r 1 is c 1 - c 6 alkyl , r 2 is c 1 - c 6 alkyl or c 2 - c 6 alkanoyl , r 3 is hydrogen or c 1 - c 6 alkoxyl , x is 0 , 1 or 2 , y is 1 , 2 , or 3 and x + y = 3 . under ultraviolet radiation the compounds rearrange to the corresponding α - hydroxybenzophenones which protect substrates , especially transparent plastics , against degradation .

a stack of laminated removable transparent lenses which consists of two alternating optically clear materials in intimate contact . the materials are a plastic lens and a clear adhesive . the adhesive is uninterrupted . the lens and the adhesive have a refraction mismatch of less than 0 . 2 . the lens stack can be used as a graffiti stop . the lenses are resistant to scratching .

a system and method for preparing a plastic bag especially useful for carrying electronic products by extruding spaced apart ribs onto the interior surfaces so that the bag volume is greater , so that a greater amount of vci or anti - static material can be carried in the bag volume and providing greater surface area for outgassing of the vci into the bag interior . the ribs also facilitate insertion of items into the bag and prevent clinging of the bag interior surface to flat portions of the product carried therein .

a laminate including a substrate , an antibacterial agent - containing layer on a surface of the substrate , and a moisture triggering layer on the antibacterial agent - containing layer is provided , wherein the antibacterial agent - containing layer contains a volatile antibacterial agent , and the moisture triggering layer contains a hydrophilic polymer such as polyvinylpyrrolidone . the laminate releases a relatively larger amount of anti - bacterial agent in vapor form in a humid environment in comparison with a dry environment .

an emulsifying agent of microbiological origin is produced by an aerobic aqueous fermentation process employing corynebacterium hydrocarboclastus uwo 409 as the fermentation agent and paraffinic hydrocarbon substrate . an emulsifying agent product consists essentially of an extracellular polymer product of a fermentation process , the polymer comprising a polysaccharide component including galactose , glucose and mannose in ratio about 1 : 2 . 65 : 1 . 96 and a bound protein component .

a novel method for disposing of drill cuttings and more particularly to the process for source identification of such cuttings and the identification of value added processes for commercializing the cuttings in an economical manner . the method of recycling of oil and gas well drill cuttings as disclosed herein begins by identifying drill cuttings by location , type of earth formation and earth strata level from whence extracted , drying , coding and containerizing said cuttings by said grade , mineral type , extraction location , and geological age . uses for the recycled and graded drill cuttings include graded virgin aggregate for road construction including asphaltic cement , recyclable stone retaining walls and lawn ornaments or other applications useful in landscaping or water drainage control by mixing the dried and refined cuttings with recycled polymer .

a controlled release composition of biologically active materials is prepared by reacting a biologically active agent , aqueous polyhydroxy polymer , inorganic salt , and optional filler , drying the product and then grinding the product to the desire particle size . the product is then used , for example , for controlling pests .

a facial tissue system for the purpose of eliminating the spread of bacteria when sneezing or blowing nose into a tissue . the facial tissue system has a two - sided design ; a soft textile side , and an eco - safe plastic durable side ; however , the tissue remains flushable and septic safe . the eco - safe plastic side provides strength to the structure of the tissue in order to prevent tears and mucus pass - through during usage while also being ecological .

a coupling disc for a belt retractor of a vehicle safety belt comprises a coupling catch which is pivotally mounted on the coupling disc so as to be movable between a position of rest and a coupling position . the coupling catch and the coupling disc are formed in one piece from plastic .

a method for reducing the part - to - part cycle time of quick plastic forming and superplastic forming of a metallic sheet alloy into an automotive sheet metal component by locally modifying a die surface to control friction which militates against undesirable necking and thinning .

antiabrasion curved section made of reinforced curved plastic material and comprising in at least one of a lower portion and an upper portion in antiabrasion material . a plurality of antiabrasion sections are produced inside a profiled mold having a plurality of grooves in which is arranged the antiabrasion material of the lower faces . reinforced filaments impregnated with a stabilizable resin are supplied to the mold and , finally , the antiabrasion material of the upper faces is applied . the mold is wound on a mandrel and the plastic material is stabilized before removing the mold sections which form a unitary assembly dividable particulary during the stranding of arm rings .

a one piece disposable bacteria / virus filter is suited for all lung tests . the 31 / 2 &# 34 ; outside diameter embodiment has a low 70 cc dead space and a low 0 . 60 mm h 2 o / liter / second airflow at 12 liters per second . the 4 &# 34 ; outside diameter embodiment has a low 70 cc dead space and a low 0 . 45 cm h 2 o / liter / second airflow at 12 liters per second . each embodiment has two plastic body halves ; each having fins or pins or crosshairs to support the central area of the filtrete ® internal filter mounted therebetween .

water unstable bioadhesive compositions comprising an aqueous plasticiser , a cross - linking agent , a copolymer of a hydrophilic unsaturated water soluble firt monomer a hydrophobic unsaturated water - soluble second monomer , characterised in that they have : a water activity of from 0 . 4 to 0 . 9 ; an elastic modulus at 1 rad / s of from 700 to 15 , 000 pa ; an elastic modulus at 100 rad / s of from 20000 to 40 , 000 pa ; a viscous modulus at 1 rad / s of from 400 to 14 , 000 pa ; a viscous modulus at 100 rad / s of from 1000 to 35 , 000 pa ; wherein the viscous modulus is less than the elastic modulus in frequency range of from 1 to 100 rad / s ; amd wound dressings made from them .

the invention relates to a block copolymer containing : a ) hydrophobic biodegradable polymer ; b ) a hydrophilic polymer and c ) at least one reactive group for covalent binding of a surface - modifying substance d ) to the hydrophilic polymer b ). the invention relates to shaped bodies consisting of the block copolymer and to their utilization , particularly as carriers for tissue culture and active substances and for controlled release and targeted administration of active substances .

the present invention is related to a multi - layered thermoplastic elastomer foam . due to a specific formulation of the multi - layered tpe foam , adjacent layers of said tpe foam can be perfectly adhered to each other without adhesive or thermocompression after foaming . the present invention is also related to a specific process for forming a multi - layered foam .

an exterior autobody part of reinforced plastic intended to be mounted on a motor vehicle . the expression “ exterior autobody part ” refers to the autobody part being entirely or partly visible when the motor vehicle is viewed from the outside . furthermore , the invention relates to a method and an arrangement for forming such an exterior autobody part . the exterior autobody part according to the invention comprises a number of functional layers , including load - bearing layer and surface layer , intended to provide the properties which are required for the application , and is characterized in that load - bearing layers comprise fiber - reinforced thermoplastic which forms internal cavities and / or that one or several recesses has / have been created in surface layers and load - bearing layers and that surface layers and load - bearing layers together with cavities and / or recesses thereby provide a load - bearing material structure . examples of properties essential for the application are low weight , high stiffness , and durability , recyclability and visual properties . the invention can be applied within the field of externally visible motor vehicle parts , for example boot lids and wind deflectors .

process for cleaning metal machine parts caked with thermoplastic polymers and apparatus for carrying out said process . the process consists in placing the parts caked with polymers inside an autoclave and in striking them with a stream of overheated steam . the stream mixes with the vaporized polymer residues produced by the thermal decomposition and hydrolysis of the polymers that are initially present on the parts and is conveyed outside the autoclave together with the vaporized residues . the stream containing vaporized polymer residues that leaves the autoclave is then subjected to condensation and the pollutants elimination .

a process for preparing a silicon carbide foam by impregnating a polyurethane foam with a suspension of silicon powder in an organic resin , heating progressively to polymerize the resin , heating further to carbonize the polyurethane foam and resin , and finally further heating to carburize the silicon contained in the resin suspension by means of carbon obtained from the carbonization of the foam and resin . the foam obtained is characterized by high macroporosity and a mesoporosity which is variable according to the carburizing temperature .

a method for forming a tamper - resistant envelope formed of a thermoplastic resin comprises two opposing panels having respective bottom and side wall edges bonded together to form a pocket therebetween . the top of the pocket is open for inserting an item into the pocket . each panel has an edge portion adjacent the opening . a bead of pressure - sensitive adhesive is applied adjacent the edge portions , and the bead is heat - seal bonded to the thermoplastic edge portion . the edge portions can be brought together to bring the adhesive beads into contact to close the opening . by heat - seal bonding the adhesive beads to the thermoplastic edge portions , the pressure - sensitive adhesive is less susceptible to being opened by supercooling .

a process of welding plastic vials and closure suitable for sterile filling operations is disclosed . following a mechanical seal , a heated die is used to fuse the container and closure into a hermetic seal capable of use in the pharmaceutical industry .

in accordance with one aspect of the invention , a material , such as a plastic film , is used to separate independent food elements . the independent food elements and the separation material are packaged together using a unifying outer package . at a point in time when the customer decides to eat the food , the outer package is opened and the film that separates the different food elements is removed , either manually or automatically . this marks the first point in time that the separate elements come into contact with each other . therefore , the food product is maintained at the highest level of integrity until the time of usage by the customer . methods and a machine for layering the contents of the packages so as to form a completed assembly for the packaged elements is also described .

the present invention provides a liquid spray gun with several improved features , including a molded polymeric possibly disposable body assembly through which passes liquid sprayed by the spray gun that is manually releasable from a metal platform portion of the spray gun through which air is fed to passageways through the body assembly to spray the liquid ; non - cylindrical air passageways on air horns that provide improved shape and uniformity for the wide elongate stream of liquid formed by the spray gun , and an air cap portion of the body assembly mounted for manual rotation on a nozzle portion of the body assembly between positions defined by stops and retained at those positions by friction .

a removable utility fluid bottle cover is provided for covering a refillable fluid reservoir bottle that has a dual function , releasable element subassembly with an inwardly facing surface fastened to the bottle cover and an opposing outwardly facing surface being adapted for receiving at least one exterior detachable accessory fixture subassembly for improving a fluid reservoir bottle aesthetics , for adding additional shelf storage space , and for bottle transfer portability . the removable utility fluid bottle cover is designed to flexibly cover a standard five - gallon , refillable fluid reservoir bottle while the bottle is in use as a personal potable water supply or as a flammable gas utility supply that is supplemental to the common municipality - provided utility sink tap water source or building flammable gas source . the removable utility fluid bottle cover enhances the plain standard plastic bottle aesthetics by facially enclosing the exterior unremarkable plastic surface of the fluid reservoir bottle , affords visual fluid level observation , and provides supplemental handy storage space .

a pharmaceutically - active polymeric compound of the general formula , y - m - link b wherein x is a coupled biological coupling agent of the general formula bio - link a - bio wherein bio is a biologically active agent fragment or precursor thereof linked to link a through a hydrolysable covalent bond ; and link a is a coupled central flexible linear first segment of & lt ; 2000 theoretical molecular weight linked to each of said bio fragments ; y is link b - oligo ; wherein link b is a coupled second segment linking one oligo to another oligo and an oligo to x or precursor thereof ; and oligo is a short length of polymer segment having a molecular weight of less than 5 , 000 and comprising less than 100 monomeric repeating units ; m is 1 - 40 ; and n is selected from 2 - 50 . the compounds are useful as biomaterials , particularly , providing antibacterial activity in vivo . also provided are biological coupling agents useful as intermediates in the preparation of the pharmaceutically - active polymeric compounds .

thermoplastic granules are finished by blending thermoplastic granules with additive material to form a masterblend ; intensively mixing the masterblend with additional thermoplastic granules under conditions to increase the temperature of the thermoplastic to its softening temperature and to increase the bulk density of the granules ; and withdrawing and cooling the mixture to form free flowing granules containing additives thereon or therein .

the disclosure describes a method to fabricate nanostructures containing isotropically distributed , interconnected pores having cross - sectional diameters in the nanometer and angstrom range by integrating the steps of attriting precursor nanometer - sized particulate materials , desorbing the exposed surfaces of the attrited nanoparticulates , adsorbing a surfactant on 25 - 50 % of the desorbed surfaces and dispersing the surfactant - coated nanoparticulates in an organic matrix to form a homogeneous thermoplastic compound from which green nanostructures are formed , dewaxed and sintered to the desired degree of microporosity .

a method and system for organic polymer synthesis utilizing flow through reaction vessels . a chemical plug is introduced selectively into reaction vessels that are inactive . reactions continue in other reaction vessels . the chemical plug may be removed after reactions in the other reaction vessels have been completed . all reaction vessels are under a pressure differential which , with the use of the chemical plug , remains uniform .

an emergency trunk release handle for an automobile displays the graphics explaining the use and function of the handle by cutting out the material from the handle . forming the emergency release handle from a phosphorescent plastic material that can be formed by a molding process , such as injection molding , the cut - out graphics show as darkened areas , when viewed in the dark confines of an automobile trunk , to provide a high degree of visibility for the graphics . the graphics are also visible when seen against the dark carpet in the interior of an opened trunk cavity . the formation of the graphics is accomplished by coring the mold in the configuration of the desired graphics and by forming the plastic material in the mold around the cores . the resultant handle structure is thus formed in a cost effective manner that reduces the process failure potential during the manufacturing of the handle .

a cyclonic comminuting device includes a set of shearing plates that is adaptable to any colloid mill for improved efficiency and effectiveness in the production of all commodities including , but not limited to , asphalt or bitumen modification , tar , plastics , polymers , cosmetic processing and foods processing . the set of shearing plates includes a set of concave cutting edges . the set of concave cutting edges is applied to radial teeth of a rotor plate and / or a stator plate of the set of shearing plates forming a cyclonic flow pattern of a commodity as the commodity is passed through the comminuting device . the resulting turbulence created by the intersecting concave cutting edges on the rotor plate and the stator plate increases the effective hydraulic shear generated by the rotor plate and the stator plate resulting in greater particle pulverization and resulting in higher quality emulsions with reduced cost of materials required for production .

the present invention relates to a method of fabricating a rod of composite material from a fiber preform comprising a certain number of primary fiber plies connected together by links allowing plies to slide relative to one another while the preform is being shaped , the preform including a central portion for constituting the body of the rod and including two opposite side portions , together with extensions for forming lugs of the rod , which method includes the step of shaping the fiber preform so as to give it a hollow shape while keeping the two opposite side portions spaced apart so as to give the fiber preform an open profile in its central portion , followed by injecting resin and causing it to polymerize .

disclosed are oligonucleotides useful in methods for determining whether a sample contains borrelia afzelii , a spirochete which is a causative agent of lyme disease in humans . these oligonucleotides , which have nucleotide sequences derived from a coding segment of the gene encoding the p24 gene for the outer surface protein of borrelia afzelii , are useful as forward and reverse primers for a polymerase chain reaction using nucleic acids from a biological sample as templates , and as probes for detecting any resultant amplicon . detection of an amplicon indicates the sample contains borrelia afzelii . real - time pcr and detection using florescence resonance energy transfer is disclosed .

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

an apparatus and method for producing porous polymer particles is disclosed . the apparatus includes a rotating atomizer wheel onto which a uniform thin layer of a polymer may be applied via a distributor , followed by the movement of the polymer to the periphery of the wheel due to centrifugal force and the subsequent release of free flying particles at the periphery of the wheel . the apparatus further includes a catch tray to collect the porous polymer particles produced and an enclosure defining a partition between an interior environment and an exterior environment of the apparatus . the enclosure includes an aperture allowing a gaseous exchange between the interior and exterior environments .

a compound includes a polymer where the polymer includes a pendant dioxirane moiety . cost - effective , facilitated generation of a polymer including a pendant dioxirane moiety allows for the compound to be disposable or be easily recycled . the compound can be used in air purification and liquid purification to not only remove particulate matter , but also to destroy microorganisms and remove volatile organic compounds .

the test kit includes a substrate and , welded or bonded thereto , a plastic sheet having blisters . one of the blisters is shaped as a siphon . the other blisters act as reaction vessels and also serve to receive and store a reagent . the test kit may contain a test strip in one of the blisters . the test kit is particularly suited for carrying out immunological tests , whereby the siphon markedly facilitates the procedure during the washing step .

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 polymerization 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 .

assembly for the continuous plasticising and filtration of materials . the materials include polymers in the pasty , viscous , or molten state , visco - elastic products and proteoleaginous products . the assembly includes two modules , a plasticising module and a degassing and filtration module . a stator accommodates a floating screw and , in succession , a feed zone receiving the material to be plasticised , a homogenization zone , a degassing zone , a zone for the filtration of the non - molten material , and a zone for the outlet of the plasticised material . the portions of the stator which correspond to the various zones are provided with temperature regulating means , formed of a condenser , a heating device , and an annular chamber .

a concentration of cationic polymer is able to floc algae cells in about 30 minutes compared to the 30 + hours for the cells to flocculate and settle without additives . the addition of the polymer requires less than 1 wt % polymer to complete the algae floc and does not require large amounts of energy to perform or extra processing steps to recover the flocculent .

a material adapted for use as a stationary phase in chromatographic processes for adsorbing metal ions , comprising : a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon .

a pallet - type skid support for portable structures such as for washstands and commodes . it is made from polymeric material that is abrasion resistant and resistant to moisture and rot , in contrast to wooden pallets . it includes runners that are separably attached to the platform . the platform and runners are conveniently manufactured by the rotational molding process . indicators of runner wear may be provided .

a kit and method for using the kit to make a water - based consumer product containing oil - soluble materials . the kit includes an ampoule containing an anhydrous concentrate including a polymer dispersed with a binding agent containing a surfactant , and zero or more oil soluble ingredients . the polymer preparation preferably is between about 8 % and about 50 % by weight of the concentrate , and the polymer preparation is configured to be between preferably about 1 % and about 5 %, by weight , of the consumer product . the method may include the steps of opening the ampoule , depositing the contents of the ampoule into a container , adding a predetermined amount of water to the container , closing the container , and agitating the container for a predetermined amount of time . the ampoule preferably is airtight and opaque , preventing degradation of the active ingredients within the ampoule .

the present invention relates to a method for removing biopolymer aggregates and viruses from a fluid . in a first step , the biopolymer aggregates are selectively removed by filtration through a porous , polyamide - comprising shaped body having a native surface . in a second step , the biopolymer aggregate - free fluid is filtered through at least one suitable virus - retentive membrane .

a decorative molding for motor vehicles , such as automobiles , for concealing the space between a body panel and an adjacent translucent member such as a window , a windshield , or a lamp cover , and also to minimize leakage of noise , water and dirt . the molding is an elongated polymeric member having a generally cylindrical foam strip which is continuously placed against a portion of the molding and bonded thereto , the strip thus providing a resilient seal for the molding when used between the body panel and the adjacent translucent member .

an ink jet printing method , comprising the steps of : a ) providing an ink jet 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 polymer containing at least one ethylenically unsaturated monomer containing a trialkylammonium salt , each trialkylammonium salt containing at least one alkyl group having greater than 8 carbon atoms ; c ) loading the printer with an ink jet ink composition comprising water , a humectant , and a water - soluble anionic dye ; and d ) printing on the image - receiving layer using the ink jet ink in response to the digital data signals .

methods are disclosed for preparing novel biodegradable cross - linked nanoparticles based on covalently cross - linking modifications of hyaluronic acid . the final products of the present invention are stable in aqueous media , and may be used as detergents and as additives for pharmaceutical compositions for drug delivery , dna carrier system and other applications . the nanoparticles made from the biopolymers of the present invention may also be used in controlled release applications , super - absorbent materials as well as biomaterials like enzyme immobilization .

a method treats an article and more specifically an aircraft surface in order to prevent icing and to provide a coating that emits very low volatile organic compounds during application and setting . icing on critical aircraft surfaces creates dangerous conditions that impair the stability of the aircraft . the specific areas are referred to as “ cold - soak ” conditions and some areas on the “ leading edges ” of the wings . the invention eliminates icing on these surfaces . ice will not form on the surface of certain polymer coatings with low surface energy such as teflon . this is a consequence of the high contact angle between the water droplet and the surface that establishes a non - wetting surface . the invention implements such coatings and a deposition process . the coating may be used for other objects such as automobiles , consumer products , such as refrigerators , stoves , etc .

several novel pha polymer compositions produced using biological systems include monomers such as 3 - hydroxybutyrate , 3 - hydroxypropionate , 2 - hydroxybutyrate , 3 - hydroxyvalerate , 4 - hydroxybutyrate , 4 - hydroxyvalerate and 5 - hydroxyvalerate . these pha compositions can readily be extended to incorporate additional monomers including , for example , 3 - hydroxyhexanoate , 4 - hydroxyhexanoate , 6 - hydroxyhexanoate or other longer chain 3 - hydroxyacids containing seven or more carbons . this can be accomplished by taking natural pha producers and mutating through chemical or transposon mutagenesis to delete or inactivate genes encoding undesirable activities . alternatively , the strains can be genetically engineered to express only those enzymes required for the production of the desired polymer composition . methods for genetically engineering pha producing microbes are widely known in the art . these polymers have a variety of uses in medical , industrial and other commercial areas .

a method and a device for operating a calendar machine for plastic melts , the machine comprising a downstream roll conveyor , the position of the roll conveyor being oriented in relation to a position of a roll of the calendar machine .

a self supporting curved laminate product resulting from curving of a planar precursor , wherein the planar precursor is a self supporting laminate of two sheets of an acrylic thermoplastic , or of sheets including an acrylic thermoplastic , spaced by , but attaching to , an interposed thermoset polyester system , and wherein curving has involved heating of the laminate sufficient to allow its curving without any substantial degradation of the lamination or its component layers .

a master cylinder having a reservoir and a cylinder formed from a single piece of molded plastic . a sight gauge is molded into a sidewall of the reservoir to permit the level of hydraulic fluid to be checked without removing the reservoir &# 39 ; s cap . a vent hole and a replenishing hole permit hydraulic fluid to flow between the reservoir and the cylinder . a baffle is provided to deflect “ geysers ” that can occur during brake bleeding when hydraulic fluid is forced up through the replenishing port . in the preferred embodiment , the baffle includes an upright portion that is used to retain a float in alignment with the sight gauge .

the invention is based on the discovery that injectable and nucleic acid - compatible polymeric compositions and formulations can be structurally designed to regulate nucleic acid activity or gene expression in vivo , for example , by controlling the bioavailability of the nucleic acid via modulation of the biodegradability and crosslink density of the network formed by the components of the formulation . the polymeric network encases the nucleic acid , not only controlling the release of the dna , but also providing protection from degradation . the invention described herein improves upon prior modes of gene delivery , in that gene expression can be regulated by modulation of a polymeric network formed by combination of at least two water - soluble components capable of reacting with one another . the nucleic acid of interest is incorporated into the network to be released in a sustained manner to achieve level and duration of activity or expression needed .

the present invention concerns biodegradable linear polyester urethanes as well as biodegradable crosslinked polyester urethanes issuing from the linear polyester urethanes in such a way that they are crosslinked by diisocyanate bridges . by varying the degree of crosslinking it is possible to adjust the physical , chemical and biological properties in the crosslinked polyester urethane as defined by the invention in a targeted manner . in particular , it is possible to vary the rate of biodegradation of said crosslinked polyester urethane because the biological degradation takes place at a slower rate as the degree of crosslinking increases . furthermore , the object of the invention is a method of producing the polyester urethanes as defined by the invention , as well as its application in the form of sheets or foils , shaped rubber articles , containers , packaging materials , in the field of galenic pharmacy ; and in the form of adhesives and adhesive tapes and the like . furthermore , the invention relates to polymer blends containing the polyester urethanes as defined by the invention .

a powder adhesive composition for bonding an elastomer to metals or other rigid substrates comprising a powdered film forming polymer having a liquefaction temperature above room temperature and is capable of forming rubber tearing bonds between an elastomer and a substrate . the adhesive composition is shelf stable and free flowing at room temperature to allow for ease of storage and electrostatic spray application , yet melts or flows at elevated temperatures to form a film on a coated substrate prior to elastomer bonding .

concentrated alkali metal hydroxide substantially free of alkali metal halide and other impurities is produced by the electrolysis of an alkali metal halide solution in an electrolytic cell having a dimensionally stable anode and a metal cathode separated by an electrically conductive stable selectively permeable hydrated cation ion - exchange membrane film of a fluorinated copolymer having pendant sulfonic acid groups or derivatives of such groups . the membrane film is capable of use at high temperatures and under severely corrosive chemical conditions for extended periods without degradation .

a method of production and composition of a humic substances - based topical gel that contains a high concentration of polymerized humic substances in the form of polyelectrolyte - enhanced biopolymers , allowing for targeted application of gel to skin . a method of production consists of selection of humic substances containing material , extraction of humic substances from the material , polymerization of humic substances , and further processing for product preservation . such humic substances based material may be derived from brown coal , such as leonardite or lignite , or peat . an extraction technique for extraction of the humic substances is an alkali extraction method . such a resulting composition may contain sodium silicate as a gelling agent for ease of application , and in some embodiments a preservative or combination of preservatives for shelf life . such a humic substances - based topic gel is water soluble , allowing for in - home application and ability to discard through washing down a household drain .

a new biodegradable polymer composed by polylactic acid and vitamin e is disclosedα . this polymer shows a high degree of haemocompatibility compared to the original polymer and is a good candidate as coating material of different biomaterials .

a golf club head having a sole plate and hosel integral piece is disclosed herein . the integral piece may be composed of a metal material for with a golf club head having a composite body . the integral piece also improves the consistency of the loft and lie parameters of a golf club bead . the hosel may be formed with the sole plate , or the hosel may be connected to the sole plate . the integral piece may also have a polymer sleeve thereabout to assist in reducing the stress at the tip end of a shaft inserted into the hosel .

in a plastic pipe joining system a plastic sleeve is provided to extend on both sides beyond the region of contact or closest approach to one another of pipes to be joined with the sleeve being fused to both pipes , the sleeve heated to curie temperature of high mu material excited by an externally generated high frequency magnetic field . the heater may be embedded in the sleeve and the sleeve may also be employed with end caps that extended over the sleeve , the end caps and sleeve being fused to one another and the pipes by heaters carried by the end caps or the sleeve . an external heater may also be employed which in conjuction with shaped end members provides the sleeve with beveled or tapered edges to enhance the ability of the sleeve to withstand cracking .

a slewing device having a quickly adjustable drive is available for inserting and cutting cross wires in automated equipment for the prefabrication of building panels . the device includes a bridge that may be selectively tilted to planes transverse to the line of conveyance of the panels supported by a bank of electronically - controlled electric motor drives . each drive motor operates a corresponding device for pulling at least one metal wire so as to push and insert the wire at substantially any angle through a layer of plastic material sandwiched between sheets of wire netting to form the panel after passing through coaxial cutting devices for trimming the wire after its insertion .

a beverage brewer having a cartridge for placement of a disposable single use filter basket filled with beverage grounds . the filter basket includes a plastic frame having a bottom , a plurality of ribs , and a top rim that define a plurality of openings covered by a non - woven or woven plastic filter material . the basket filled with beverage grounds is enclosed with a film cover . the inlet probe of the brewer pierces the cover and admits a heated liquid into the beverage grounds , and creates a brewed beverage that flows through the filter material and exits an opening in a bottom portion of the cartridge .

a chemically modified and activated , hydroxyl - group - containing , natural or synthetic , polymeric solid body surface is disclosed , as well as a process for the activation of such solid body surfaces by means of organo - silanes and , if necessary , homo - or heterobifunctional reagent . the surfaces are used for the stable , simple and economical binding of proteins , nucleic acids , low - molecular ligands , cells , microorganisms and other biological materials , in biology , biotechnology and medicine .

a portable object prepared by casting a substantially transparent , water insoluble , chemically setting plastic into a shaped mold . while in the liquid state , items of the following types are embedded : mummified tissue from a deceased or living biological subject , an epitaph , memorabilia , and a label describing the biological content and purpose of the tissue . the four types of embedded items enclosed together in a single object accord with the definition of a tomb . mummified tissue protected from water , air , illumination , and bacterial action preserve the genome of the subject and provide a potential for resurrection of a biological subject by anticipating future innovation in genetic engineering and somatic cell cloning . portable tombs may be prepared ante mortem as well as post mortem . multiple equivalent tombs may be made for one individual . multiple individuals may be entombed in a single portable object . a portable tomb consumes no land , makes visitation travel unnecessary , and may multiply entomb a single individual , or singly entomb multiple individuals .

the process comprises : preparing a fine dispersion of droplets or particles which contain , or are formed , of a chemical or biologically active substance in a phase comprised of a solvent and a non solvent of the polymer forming the coating and , optionally , a surfactant or suspending agent ; preparing a phase which contains the coat - forming polymer dissolved in a miscible solvent in any relationship with the prior dispersion , mixing both phases continuously while maintaining constant the relationship between the phases and the mixture volume , and simultaneously spraying the resultant mixture in an evaporation system with temperature and vacuum conditions which provide for the instantaneous evaporation of the solvent from the polymer , causing the deposition of the polymer around the particles or droplets . applications to pharmacy , medicine , cosmetics , veterinary , chemical industry , agriculture are discussed .

a simple , portable carrier for a non - rigid container such as a plastic bag or sack that permits container to remain open for filling with articles or materials while serving as a carrying handle , especially suitable for highway crew members cleaning debris over long stretches of roadway . device is comprised of a rigid member such as a hollow rod , snug - fitting end caps , and end cap retaining bands . a segment of the open end of container is entrapped at each end of rigid member and held in place by friction between end caps and each end of rigid member . the device is reusable and is small enough to be carried in a pocket or on a belt loop .

a disposable , corn dispensing device comprising a rigid , shatterproof plastic housing defining an internal cord holding cavity of substantially cylindrical shape . a spool having two circular flange portions connected by a stem portion is provided to be received within the cylindrical cavity of the housing and to freely rotate therein . the spool is retained within the cavity , and a predetermined length of high strength , small diameter test cord is machine - wound in dense - packed fashion thereon . an end of the cord passes through the housing and is accessible for use .

a double belt press having a first , lower circulating plastic belt and a second , upper circulating plastic belt . the plastic belts have a first , low flexural strength , and a product gap is formed between facing strands of the plastic belts for forming a plate - like product . a first circulating lower steel belt and a second circulating upper steel belt are provided and have a second flexural strength which is high in comparison to the flexural strength of the plastic belts . a forming section is formed between the facing strands of the steel belts , which forms part of the product gap . the first , lower steel belt runs parallel and bears against a rear face of the first plastic belt in the forming section during operation , and the second upper steel belt runs parallel and bears against a rear face of the second plastic belt in the forming section during operation .

a dampening water composition which is inexpensive and which does not contaminate working environment as well as exterior environment wherein the dampening water composition comprising water , a ph buffering agent , a water - soluble polymer and n - propyl alcohol , wherein at least a portion of the water - soluble polymer comprises pullulan .

organisms are provided which express enzymes such as glycerol dehydratase , diol dehydratase , acyl - coa transferase , acyl - coa synthetase β - ketothiolase , acetoacetyl - coa reductase , pha synthase , glycerol - 3 - phosphate dehydrogenase and glycerol - 3 - phosphatase , which are useful for the production of phas . in some cases one or more of these genes are native to the host organism and the remainder are provided from transgenes . these organisms produce poly homopolymers or co - polymers incorporating 3 - hydroxypropionate or 3 - hydroxyvalerate monomers wherein the 3 - hydroxypropionate and 3 - hydroxyvalreate units are derived from the enzyme catalysed conversion of diols . suitable diols that can be used include 1 , 2 - propanediol , 1 , 3 propanediol and glycerol . biochemical pathways for obtaining the glycerol from normal cellular metabolites are also described . the pha polymers are readily recovered and industrially useful as polymers or as starting materials for a range of chemical intermediates including 1 , 3 - propanediol , 3 - hydroxypropionaldehyde , acrylics , malonic acid , esters and amines .

the present disclosure relates to a system comprising preformed screed elements , which can be made of any suitable material , but is particularly adapted to being formed from a cementitious material . alternative materials from which the screed elements can be formed include plastic , ceramic , clay and composite materials , such as fiber - reinforced materials . advantageously , the screed elements of the system can be formed from a recycled material including but not limited to recycled glass , polypropylene , recycled aggregate in a cementitious matrix , asphalt - based materials or any other suitable durable material .

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 .

methods for producing bioplastics from biogas include techniques for the production of phb using a dirty biogas as both a power source for the process and as feedstock . biogas is split into two streams , one for energy to drive the process , another as feedstock . advantageously , the techniques may be implemented off the power grid with no dependence upon agricultural products for feedstock .

a method and system for controlling dissolved oxygen levels in a secondary treatment system of a wastewater treatment facility that can employ a membrane bioreactor in which oxygen introduction into mixed liquor is controlled to prevent bulking and minimize generation of extra cellular polymeric substances . the control is exercised by insuring that dissolved oxygen levels within the mixed liquor do not fall below a minimum system level at which microorganism stress would occur . this is done by setting a minimum dissolved oxygen level control point equal to a sum of the minimum system level and an adjustment factor determined on the basis of oxygen uptake rate and time delays inherent in sensing oxygen levels and changes thereof within the mixed liquor . the minimum system dissolved oxygen level can be continually calculated on the basis of an inferred food to mass ratio that would vary with sensed mixed liquor suspended solids .

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

a reusable bottle holder for holding and manipulating a plastic bottle typically for soft drinks such as two and three liter , and proposed , four liter , bottles . the bottle holder has a partial annulus flexible neck locking portion for snap - locking onto the annular neck of the bottle immediately adjacent and below a neck flange . the handle also has an attached partial annulus member attached to it for partially encircling and securing the lower side wall portion of the bottle . while the neck locking portion of the handle is integrally fixed to the handle portion , the lower side wall securing , annular member is fixed to the handle by complementary male and female fittings to facilitate packing and shipping of the handle member .

preservative systems which may be incorporated into aqueous compositions for the daily cleaning of silicone copolymer and soft contact lenses are provided . the preservative system includes trimethoprim , a salt of edta and an adjuvant bactericide that is either sorbic acid or ascorbic acid . one suitable cleaning composition which incorporates the preservative system includes three types of detergents . the cleaning composition is effective in removing both proteins and lipids from the surfaces of soft contact lenses and aids in preventing deposits from forming and binding to the lenses .

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 .

a method is disclosed for enhancing the yield strength and density of polyethylene terephthalate and other similar thermoplastic materials which are susceptible to strain hardening . in the method , the plastic material is thermally conditioned to a temperature within a range conducive to molecular orientation , and then is mechanically conditioned by stretching in a first direction to a length at least about 2 . 6 to 2 . 75 times the original length . thereafter , the plastic material is stretched in a second direction , with strain hardening and strain - induced crystallization increasing drastically substantially immediately upon the initiation of the second stretching operation due to the mechanical conditioning by elongation during the first stretch . the invention is particularly suitable for forming blow molded containers , where a blowable parison or preform is first stretched along its longitudinal axis to the critical length and is then extensively strain hardened while being blown to the configuration of the container .

a method of accelerating the breakdown of phenolic resin bonded cores by means of adding a basic salt of alkali metals in powder form to phenolic resin coated sand is disclosed . the basic salt is selected from the group consisting of alkali metal carbonates , bicarbonates and organic acid salts , and mixtures thereof , and is microcapsulated with plastic .

a fuel cell having a polymer electrolyte membrane containing fluorine atoms distributed along the polymer chains , and metal conductors and / or catalysts . the cell is protected from metal ion degradation of cell components , especially the polymer electrolyte , by a metal ion sequestering or chelating agent fixed in the cell or flowing through the cell . in a preferred embodiment , the metal ion - sequestering agent comprises a suitable number of metal ion - binding molecular crown moieties attached to polymer constituents in the electrolyte membrane or in electrodes .

processes for the batch production of rubber - based compositions capable of being shaped and shaped articles made thereof . they include a step of high intensity mixing cured rubber particles with other selected compounds into a closed mixing chamber provided on a high intensity mixer including a central shaft having mixing blades . through high speed rotation of the shaft , blade tip speed above about 20 meter / s are obtained to intensively mix and thermokinetically heat the batch of mixable material , whose temperature is continuously monitored . discharge of the batch from the mixing chamber takes place when the temperature is considered to have reached a reference value ensuring a substantially uniform mix of the rubber material and added compounds , to produce the rubber - based composition . according to a first preferred embodiment , cured rubber is fed into the mixing chamber with a resinous material , and discharge occurs at a temperature ensuring a substantially uniform mix of the rubber material in a matrix of resinous material to produce the rubber - based composition , which can be then shaped without any further heating . according to a second preferred embodiment , a curing agent is added to the cured rubber particles , and the batch is discharged from the mixing chamber when the temperature reaches a reference value ensuring a substantially uniform mix of the cured rubber material with the curing agent without causing a significant further curing , to produce a rubber - based composition capable of being heat - shaped . other preferred embodiments using a reactive polymeric binding agent and a bonding agent are described .

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

j - 1 which is a strain of cyanobacteria is used to form and excrete a material useful as an emulsifying agent for forming emulsions of hydrocarbons and oils in liquids such as water . method of separating and culturing the cyanobacteria under conditions necessary to achieve a maximum formation and excretion of the emulsifying agent into solution . method of purifying and separating excreted as well as intracellular material from cyanobacteria . method of removing stains with a material excreted by cyanobacteria , and particularly strain j - 1 . method of effecting the secondary recovery of petroleum through the use of a material excreted by cyanobacteria , and particularly strain j - 1 . extracellular polymeric material which is greater than 200 , 000 daltons in molecular weight , and contains sugar , fatty acid , and protein moieties , and amide , carboxylic and amino groups .

this invention relates to implantable porous prostheses for use as bone or hard tissue replacements anywhere in the body . the porous implants comprise loose , individual polymeric particles of a specified size , coated with a hydrophilic material and barium sulfate particles . the prostheses are biologically compatible in the body and promote bone and tissue ingrowth and attachment . this invention also relates to a method for producing the novel prosthetic devices disclosed herein .

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

an apparatus and method are disclosed for cutting a cylindrical plastic bottle into two sections , providing the open end of one section with an externally threaded collar and the open end of the other section with an internally threaded collar , and threadedly engaging the two sections into a storage container .

a flexible electronic device is made up of nanostructures . specifically , the device includes a flexible substrate , a film of nanostructures in contact with the flexible substrate , a first conducting element in contact with the film of nanostructures , and a second conducting element in contact with the film of nanostructures . the nanostructures may comprise nanotubes , such as carbon nanotubes disposed along the flexible substrate , such as an organic or polymer substrate . the first and second conductive elements may serve as electrical terminals , or as a source and drain . in addition , the electronic device may include a gate electrode that is in proximity to the nanotubes and not in electrical contact with the nanotubes . in this configuration , the device can operate as a transistor or a fet . the device may also be operated in a resistive mode as a chemical sensor .

this invention deals with an absorbable , gel - forming composition for multifaceted prevention of post - operative surgical adhesion through a plurality of physico - pharmacological modes , comprising a solution of one or more bioactive compounds in a liquid copolymeric vehicle made by end - grafting one or more cyclic monomer onto a polyalkylene glycol . more specifically , the bioactive drugs can display one or more pharmacological activity associated with antiangiogenic , antineoplastic , anti - inflammatory , and anti - proliferative effects .

the present invention describes novel , cost - effective and rapid processes suitable for degradation and recycling of specially designed plastics , which are defined as instantly degradable synthetic polymeric plastics having the characteristics and properties of conventional forms of plastics . these novel plastic products are made from a variety of compositions of polymers and their compatible nontoxic modifiers . the resulting novel instant degradable plastic products retain latent solubility properties which are triggered upon mild chemical processes of the present invention , thus enabling cost effective and facile recycling of plastic refuge .

water - resistant , thermoplastic starch materials which are processable into environmentally safe , thermoplastically produced products and cast sheets . they consist of starch acyl compounds , obtainable from high amylose starches and their derivatives , and of plasticizers , which have a gelatinizing effect , and preferably , a dissolution property resulting in brilliant transparence and , as can be proved , are biodegradable .

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 .

a microbe - inhibiting compound is incorporated into a biodegradable polymer composition , most preferably , a starch - based polymer , to inhibit microbial growth and to attenuate the biodegradation of the polymer composition . such a composition is used to manufacture any of a number of articles , particularly those that come in contact with foods such as foam containers and fruit shock absorber nets as well as packing materials such as loose fill pellets .

convoluted tubing of thermoplastic resin is made by extruding the resin as a molten tubular extrudate , feeding said extrudate into the interior of a rotating tubular member which has a helical thread in the interior of said member , the spiral thread having a deformation zone receiving the extrudate and a cooling zone downstream from the deformation zone . a vacuum can be used to force the extrudate against the spiral thread in the deformation zone to spirally convolute the extrudate . the rotation of the tubular member causes the resultant convoluted tubing to engage the spiral thread in the cooling zone for conveyance through such zone . apparatus comprising the rotating tubular member with the interior thread for forming the convoluted tubing is provided .

a method for homogeneously assaying biopolymer bonding includes obtaining signals from a test sample before , during and / or after the application of stimulus to the test sample and correlating the signals . the signals , whose magnitude correlate with binding affinity , can be , for example , electrical conductance and / or fluorescent intensity . the stimulus can be , for example , electric voltage and / or laser radiation . preferably , different types of signals are measured and compared so as to enhance the reliability of the assay .

a biologically active agent - containing composition is prepared by reacting an aqueous emulsion or dispersion of a suitable biologically active agent and an optional filler in an aqueous solution or gel of a polyhydroxy polymer and an inorganic salt , with a boric acid or boric acid derivative until an insolubilized matrix phase is formed having entrapped therein uniformly dispersed , discontinuous domains of said agent and an optional aqueous phase that can be separated from the matrix phase by decanting , filtration , or the like ; the product is then dried and ground to the desired particle size . the composition is applied to the soil or plants where the biologically active agent is slow released for controlling pests .