Datasets:

cwinkler

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patents_green_plastics

like 1

the present invention provides liver parenchymal cells having a clonal growth ability , which possesses at least one of the cell biological properties such as : presence of peroxysome ; being positive to hepatocyte - markers ; being partially positive to neoplastic hepatocyte - markers or immature hepatocyte - markers ; being positive to antibodies against the surface antigens of ovall cells ; and being partially positive to bile duct cell - markers . the present invention also provides a method for obtaining such cells and a method for subculturing such cells . with the liver parenchymal cells above , it will be possible to research in detail the process of development and differentiation , the mechanisms of growth and functional expression of hepatic cells , and to open up a new way to clalification of mechanisms or hepatoma and various other diseases and to development of therapeutic method against these disseases .

the invention provides a decomposable resin composition , which is stable at the time of use and which quickly decomposes when discarded . according to the present invention , there is provided a resin composition comprising an agent generating an acid or a base upon response to light or heat together with a hydrolyzable and biodegradable resin . the decomposable resin composition can promote decomposition of the polymer by generating an acid or a base in the resin by carrying out light irradiation and / or a heat treatment at a desired time and can control the decomposition speed of the polymer by controlling the generation amount of an acid or a base .

a device for feeding an extrusion head for plastic material includes a main extruder connected to a main die for extruding a continuous main flow of material , and an auxiliary feed mechanism associated with the main die and selectively controlled to cover the outer exit flow of the main die with a surface layer . the auxiliary feed mechanism continuously conducts two auxiliary flows , a first flow forming the surface layer and the second flow being mixed with the main flow . an invertor valve permits selective exchanging of the two auxiliary flows such that the second flow can cover the main flow and the first flow can be mixed with the main flow .

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 .

an energetic and recyclable propellant composition , which is capable of withstanding cold temperature , includes an energetic copolyurethane thermoplastic elastomer . the propellant composition can be used as a gun or rocket propellant , an explosive or in air bag gas generators .

a method for separation and recovery of polymeric beads from an antibiotic fermentation broth comprising suspending a mixture of the beads and any inherent mold from the fermentation in an aqueous solution having a specific gravity which is effective to cause the beads to form a discrete layer at or on the surface of the solution , separate and apart from the mold . the separate layer of the beads may then be easily removed from the liquid by a conventional physical methods .

an absorbable crystalline , monocentric polyaxial copolymer comprising a central carbon or nitrogen atom and at least three axes , each of which includes an amorphous flexible component adjacent and originating from the central atom and a rigid , crystallizable component extending outwardly from the amorphous , flexible component is disclosed along with the use of such copolymer in medical devices which may contain a bioactive agent . the present invention also relates to a suture , stents , stent mantles and sealing devices made from the polyaxial copolymer .

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 system and method employing at least one semiconductor device having at least one detecting region which can include , for example , a recess or opening therein , for detecting a charge representative of a component of a polymer , such as a nucleic acid strand , proximate to the detecting region , and a method for manufacturing such a semiconductor device . the system and method can thus be used for sequencing individual nucleotides or bases of ribonucleic acid or deoxyribonucleic acid . the semiconductor device includes at least two doped regions , such as two n - type regions implanted in a p - type semiconductor layer or two p - type regions implanted in an n - type semiconductor layer . the detecting region permits a current to pass between the two doped regions in response to the presence of the component of the polymer , such as a base of a dna or rna strand . the current has characteristics representative of the component of the polymer , such as characteristics representative of the detected base of the dna or rna strand .

a method of adding or removing a gas to or from a solution of the gas in a liquid involves transferring the gas between the liquid and another fluid through a membrane unit . the membrane unit includes a membrane which is substantially impermeable to the solvent and having a permeability to oxygen of at least 100 barrers ; formed from an amorphous copolymer of perfluoro - 2 , 2 - dimethyl - 1 , 3 - dioxole ; and is maintained at a temperature below the glass transition temperature of the copolymer . the fluid can be another liquid or a gas . the novel method provides very high rates of gas transmission between liquids and permits gasifying liquids without resort to sparging bubbles through the liquid . the method thus can gasify liquid with superior efficiency and without excessive agitation due to bubbling . these features result in economy of gas consumption and reduced need for gas recovery equipment , and when used in connection with a toxic or organic gaseous component , reduced requirements for additional pollution control equipment . the membrane material is resistant to fouling by liquids , and especially , by bioreactor mass . hence , the novel method can remain in service for long duration without substantially diminished performance . utilities for the novel method include purifying drinking water through ozonolysis , oxygenating bioreactors and blood ; oxidizing volatile organic compounds in water ; adding gaseous reactants to liquid chemical reactions and supplying oxygen to and removing volatile pollutants from waste water .

the present invention provides a novel biodegradable polymer compositions effecting superiority in elongation at break , izod impact strength and mold releasability which has not been obtained before the past and provides a biodegradable shrink film exceling in transparency , strength , flexibility , mold releasability and shrinkability by applying the biodegradable polymer composition to the shrink film . thus , the biodegradable polymer compositions are provided which comprise as a main component a mixture of two or more of polylactic acids , glycol / aliphatic dicarboxylic acid copolymers and polycaprolactones and these biodegradable polymer compositions are applied to shrink films .

a biocidal phosphate ester in combination with an inert inorganic or organic particulate or polymeric carrier . the biocidal - carrier composition is useful in extending the effective lifetime of the biocidal phosphate ester when incorporated into a variety of materials including plastics , fibrous materials , and solutions . applications of the disclosed carrier compounds include preparation of mildew resistant paints and plastics having extended antimicrobial properties despite extensive washing and wear of the surface .

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

the invention includes apparatus for and process of forming a plurality of plastic mounting envelopes from continuous plastic sheet material through cutting the plastic and bead sealing the margins by providing a high energy source to sever the plastic and bond the marginal edge of said plastic without physical contact . the invention also includes said plastic envelopes to serve as mounts and protectors for receiving flat paper objects such as stamps , letters , etc .

a process for producing plastic / wood fiber composite foamed structures includes the steps of pre - drying wood fiber filler ; mixing it with plastic to form a mixture ; feeding the mixture into an extruder ; introducing and mixing a blowing agent ; subject the mixture to high shear forces and extruding the mixture to produce a plastic / wood fiber composite foamed structure . the filler has a degradation temperature and an active volatization temperature . during the pre - drying step the temperature is maintained below the degradation temperature . during the mixing step the mixing temperature is maintained below the active volatilizing temperature . during the introducing and mixing step a blowing agent is introduced into the plastic / wood fiber mixture and is mixed therewith to produce a plastic / wood fiber / gas mixture . during the subjecting step the plastic / wood fiber / gas mixture is subjected to high shear forces in the presence of high pressures and the temperature is maintained below an active volatilizing temperature .

a continuous flow polymer filtration apparatus for replacing dirty filters in an extruder includes a reciprocating slide member secured within a slide channel transverse to a bore . the slide channel has a sealing region adjacent to the bore . the slide member houses two filter assemblies for filtering polymer . each filter assembly comprises at least one filter element which has a width that is less than the width of the sealing region and the distance between the filter assemblies is less than the width of the bore . the slide member is capable of positioning either filter assembly in line with the bore without interrupting the fluid flow of the polymer as well as positioning either filter assembly off - line in order to replace the off - line filter assembly .

filling material for percolating filters used in the biological treatment of fluids are provided with strips which are made of plastic and are connected to one another via a transversely directed holding web . the strips are arranged one above the other in a plurality of layers in order to increase the strip density . in the filling material according to the invention , the strips are provided with different cross - sections over their length . for example , the strips may be reduced in width in regions adjacent to their connection to the holding web . as a result , the strips can be arranged in one layer with an increased strip density .

a sensor guided needle to be used for the delivery of medication or placement of indwelling catheters , angiocatheters , spinal or epidural catheters , central lines , arterial lines , intraneoplastic , pediatric lines . the needle is comprised of an outer metal sheath with a biocompatible inner core containing sensor or signal elements . the measurements collected by the sensors are analyzed by a control unit to determine tissue type and possibly tissue state . this information can be utilized to track the progress of the needle and determine safe placement in the patient

a roller assembly for use in gravity roller and power roller conveyors , especially those used in sanitary applications such as for food processing and the like . the roller assembly prevents contaminants from entrapment within the roller or associated parts and may be repeatedly washed or steam cleaned without corrosion or degradation . preferably , wear - resistant , corrosion - resistant , organic , polymeric plastic , bearing inserts are axially and rotationally retained by retaining means within openings in the opposite ends of a corrosion - resistant roller . at least one of the roller end opening or the insert at each end includes a bottom wall closing off the roller interior and providing a thrust resisting surface . preferably , the inserts receive stainless steel support shafts which have rounded ends engaging the bottom wall to resist axial thrust on the roller . in the preferred form , the bearing inserts have curved , shaft - engaging surfaces to facilitate and maintain low - drag , rotational support even when the roller is deflected during loaded operation .

a process for preparing solid perfluorocarbon polymer supports permitting uniform and secure attachment of perfluorocarbon - substituted ligands or binders to carriers is provided utilizing pretreatment of the carriers with water miscible organic solvents .

a pultrusion apparatus for manufacturing a fiber - reinforced plastic article having a non - linear shape includes a mold configured to receive a partially cured fiber - reinforced plastic article and to form the partially - cured fiber - reinforced plastic article into a spirally wound shape . a drive mechanism is coupled to the mold and configured to rotate the mold such that the fiber - reinforced plastic article is taken up on the mold . an energy source is operatively associated with the mold and positioned so that the partially cured fiber - reinforced plastic article is cured in a spirally wound shape as the article is taken up on the longitudinally extending mold . the pultrusion apparatus allows for continuously shaping a non - linear fiber - reinforced plastic article , obviating the need for any of the work to be done by hand , which may be labor intensive , not as highly reproducible , and potentially contaminating .

the present invention is a container assembly that includes an inner tube formed from a plastic that is substantially inert to bodily fluids and an outer tube that is formed from a different plastic . collectively , the container assembly is useful for providing an effective barrier against gas and water permeability in the assembly and for extending the shelf - life of the container assembly , especially when used for blood collection . the inner container is spaced from the outer container at most locations . however , the inner container includes an enlarged top configured to engage the outer container . the enlarged top has a roughened outer surface to permit an escape of air from the space between the containers .

an inkjet printer includes a plastic platen and a structural member extending upward from the base of the printer . the printing surface is supported by the upper surface of the structural member . this surface is held flat to within very tight tolerances . the bottom of the platen printing surface is retained against this surface so that it conforms to the shape of this surface structural member to create a substantially flat printing surface .

the invention relates to methods for the formation of hydrogels by the intensive mixing of aqueous compositions containing copolymers of opposite chirality . such hydrogels may he bioresorbable and are useful for medical applications within mammalian bodies .

the invention provides a decomposable resin composition which is stable at the using time and quickly decomposed when being discarded . according to the present invention , there is provided a resin composition comprising an agent generating an acid or a base by light or heat together with a hydrolyzable and biodegradable resin . the decomposable resin composition can promote decomposition of the polymer by generating an acid or a base in the resin by carrying out light irradiation and / or heat treatment at a desired time and can control the decomposition speed of the polymer by controlling the generation amount of an acid or a base .

the invention relates to a chemical apparatus that produces solid - state polymerization , with heat exchanger for reaction chamber or reactants located therein . the apparatus recycles waste pet bottles and produce high quality pet pellets essentially free of contamination . the apparatus comprises an insulated housing or frame to receive small amounts of empty single serve plastic water bottles , with a movable lid to allow insertion of the bottles . the bottles are heated to the melting point , and a slow velocity fan on top of the lid to distribute heat inside the reactor . the tray inside the lower housing has cavities to hold the bottles , and several oval shaped molds at a lower level to receive the melt by gravity . these molds allow stationary cooling of the melted polymer , where it solidifies forming robust crystallized pellets . the apparatus relates to a countertop appliance intended for domestic use .

a pick - up truck tailgate protector assembly includes a sheet - like plastic panel having a plurality of corrugations formed integrally therein . a plurality of curved appendages extend from the lower extremity of the panel for resiliently engaging the lower pivoted edge of a vehicular tailgate . the panel includes an upper extremity having an l - shaped bead extending the length thereof . the bead is fixedly captured in an extruded aluminum channel . the channel includes an integral uncinate member for covering the upper swinging edge of the tailgate .

a method of forming a relief pattern on the surface of a substrate comprises the steps of providing a substrate , coating a thin layer of polymeric material onto the substrate , drying the polymeric material to leave residual lateral stress within the material , bringing a patterned stamp into contact with the polymeric material and applying pressure to the stamp such that the polymeric material ruptures patternwise and dewets at the surface of the substrate to form openings in the polymeric layer according to the pattern on the stamp .

rubbery polymers made by anionic polymerization can be coupled with tin halides or silicon halides to improve the characteristics of the rubber for use in some applications , such as tire treads . in cases where the rubbery polymer was synthesized utilizing a polar modifier it is difficult to attain a high level of coupling . this invention is based upon the unexpected finding that coupling efficiency can be significantly improved by conducting the coupling reaction in the presence of a lithium salt of a saturated aliphatic alcohol , such as lithium t - amylate . this invention discloses a process for coupling a living rubbery polymer that comprises reacting the living rubbery polymer with coupling agent selected from the group consisting of tin halides and silicon halides in the presence of a lithium salt of a saturated aliphatic alcohol . the lithium salt of the saturated aliphatic alcohol can be added immediately prior to the coupling reaction or it can be present throughout the polymerization and coupling process . lithium t - amylate reacts with water to form t - amyl alcohol during steam stripping . since t - amyl alcohol forms an azeotrope with hexane , it co - distills with hexane and can contaminate recycle feed streams . this problem of recycle stream contamination can be solved by using metal salts of cyclic alcohols that do not co - distill with hexane or form compounds during steam stripping which co - distill with hexane . thus , the use of metal salts of cyclic alcohols is preferred for this reason and because they are considered to be environmentally safe .

the present disclosure is directed to a roof lining for a vehicle and a manufacturing method thereof , and in particular , to the roof lining for a vehicle using a composite material having basalt fibers mixed into a thermoplastic resin as a substrate . the resulting roof lining can be lightweight , have enhanced sound absorbency and increased heat insulating properties . due to the use of basalt fibers , which do not coat incinerator walls like glass fibers do , the roof lining is more easily recycled .

a mold for making a sandal having an injected molded sole comprises a last for receiving an upper , a ring , and a sole plate . the last , ring and sole plate form a sealed cavity where the sole is formed in response to plastic material being injected into the sealed cavity . the injected plastic material has tendencies to adhere to portions of the upper on a portion of the last forming a wall of the sealed cavity and remain in the cavity as the last is removed from the cavity . the portion of the last forming the sealed cavity wall includes an ear extending into the cavity for overcoming the tendency of the injected plastic material to remain in the cavity . the ear frictionally engages an interior surface of the sole to pull the sole from the cavity as the last is being removed from the cavity .

in a method for forming reclosable packages on a conventional form - fill - and - seal machines , first and second interlocking members are fed toward and longitudinally parallel to the filling tube thereof in an uninterlocked condition . a thermoplastic film is wrapped around the filling tube enclosing the first and second interlocking members , and the lateral edges of the film are bonded together to form a longitudinal seam . at least one of the first and second interlocking members is attached by a heat sealing bar to the inside of the tube so formed from the thermoplastic film . a fold is formed in the tube between the first and second interlocking members to bring the members into a facing relationship , and the members are then interlocked with one another . at intervals , transverse seams are formed to produce individual reclosable packages , which may also be separated from one another . the packages are filled with product during the course of their manufacture . the filling tube may taper inwardly so that the fold can be formed and the interlocking members interlocked as a space of increasing width forms between a forming guide and the inwardly tapering filling tube .

a tube construction for providing releasably interlocking fastener strips to be attached to the surface of film for bags including an elongate thin plastic tube having a range of gauges from 0 . 0015 inch to 0 . 005 inch with at least six shaped plastic profiles projecting from the surface of the tube and integral therewith being formed by the same extrusion process with one - half of the number of profiles being female and the other half being male profiles , and the male and female profiles shaped and sized so as to be capable of releasably interlocking with each other and with the film between the profiles having a distance no greater than 2 inches , and said film being longitudinally severable between profiles to provide fastener strips for laminating onto the surface of a plastic film to be converted into reclosable plastic bags .

a thermoforming device heats a plastic film to a substantially uniform temperature , in order to impart a curved shape to said film . the device includes a chamber , the internal pressure of which is variable and which is closed by the film , a system for measuring a sag in the film arranged outside the chamber and opposite said film , and a system for heating the film . the heating system includes a hot air blowing unit which is suitable for producing a hot airflow flowing parallel to the film between two opposite edges of said film .

a kitchen tool has a work end of plastic molded to a reinforced plastic handle . the reinforcement is completely encapsulated in the kitchen tool which has a smooth uninterrupted outer surface . a method of making the tool also is enclosed .

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

a wastewater treatment process elicits microorganisms to convert a waste stream / organic resource to intracellular biopolymer polyhydroxyalkanoate . the process includes waste stream / organic resource composition feed criteria , configuration coupled with operational parameters , and pha - laden biomass separation and stabilization . a waste stream / organic resource capable of producing enhanced levels of pha may be selected based on a combination of criteria , which may include short chain fatty acid concentration , protein concentration , polysaccharides concentration , and total suspended solids concentration . the waste stream is introduced into an aeration basin upon a specific configuration and operated under various parameter combinations for selecting / enriching microorganisms capable of producing pha . the pha - laden biomass is separated and stabilized for downstream pha related product beneficial uses . the present process achieves concurrent wastewater treatment and pha production , where pha level otherwise could not be obtained .

a continuously operating press for the production of particle boards , fiber boards and similar wood boards and plastic boards comprises the combination of the following features : a ) the press beams comprise individual beams of different lengths which can be connected to one another and are made up of web plates and ribs connecting the latter , the upper individual modules being suspended on two i - section girders which represent the length of the press and which take the pretensioning forces of the steel belts , while the lower press beam rests on two i - section girders anchored in the foundation ; b ) the two press beams are connected positively by tiebars that can be pivoted out and / or replaced quickly ; and c ) the cylinder - piston arrangements of one row are arranged between the tiebars and the heating platens together with their supporting crossmembers and supporting bodies or supporting strips in such a way that they can be introduced into and removed from the pressing zone after the release of some of the tiebars .

efficient processes have been developed for the cost effective functionalization of polyhedral oligomeric silsesquioxane - silanols and for the manufacture of polyfunctional polyhedral oligomeric silsesquioxanes . the processes utilize the action of bases or acids on silane coupling agents . the preferred process utilizes base to promote the silylation of poss - silanols of the formula n sio 1 . 0 ) m ] σ # with silane coupling agents to form poss species with functionalized incompletely condensed nanostructures n sio 1 . 0 ) m ] σ # or functionalized completely condensed nanostructures n 1 ] σ # . the process can alternately be conducted with acids . a second process utilizes base to alkylate poss - silanols with functionalized alkyl halides . a third related process utilizes base to react with silane coupling agents to form polyfunctional , fully condensed poss species of formula n ] σ # . this process can also alternately be conducted under acidic conditions . each of the processes result in new poss compositions that can undergo additional desirable chemical reactions or which are directly suitable for polymerization or grafting into polymeric materials . poss frameworks containing silanol and other reactive functionalities suitable for polymerizations have previously been described as valuable co - monomers in polymerizations and as feed - stocks for the preparation of a diverse number of chemical agents that are useful in polymeric materials in biological applications , and for the modification of surfaces .

a method of treating a patient suffering with a viral infection by administering to the patient an effective anti - viral amount of a composite molecular active substance group , which is produced by the process comprising : preparing lignin units by carrying out an extraction in an aqueous media under weakly acidic or alkaline conditions of wood or wood - like materials and / or plant - cell cultures and separating - off the resultant insoluble solids ; preparing lignoid units by carrying out an aqueous alkaline extraction at a ph of 7 to 14 of starting materials selected from the group consisting of wood - incarbonization products and bioconverted wood - like materials and separating - off the resultant alkali - insoluble solids ; and preparing a water - soluble mixed polymer by reacting the lignin units from step with the lignoid units from step , under aqueous alkaline isolating by ultrafiltration a low molecular weight fraction having a molecular weight of no more than 3000 daltons of the mixed polymer , taking a cut between 15 to 40 kilodaltons and discarding the resultant residue , and treating the resultant solution with an h + cation exchanger at a ph of 3 to 7 .

a knife to be mounted in an oscillating tool for cutting through the adhesive that fastens a window pane in place , especially in a motor vehicle . to reduce the risk of damage to its edge and to the window frame or other areas of the vehicle body , the knife has a rest made out of a soft material , especially plastic , associated with at least one side of the blade .

a plastic disruption and homogenization device . the device has rotor that is axially disposed within a stator . the stator and the rotor have several teeth to aid the disruption and homogenization process . the device consists of plastic material that allows the rotor to rotate smoothly without the use of bearings .

a dual use repeat builder assembly comprising a multiply inner sleeve with a bond layer surrounding its outer diameter for securing a compressible foam layer to the outer surface of the inner sleeve . a hard foam core is formed around the compressible foam layer using a mold cavity . after curing , the mold is removed and the ends of the hard foam core are machined creating cavity regions at each end . a notch insert is positioned at one or both of the cavity ends . a polymeric resin is poured into the cavities to form end caps . the outer surface of the hard foam and the end caps is machined to produce a smooth surface . an outer sleeve is mounted onto the hard foam core using compressed air with a resulting interference fit between the outer sleeve and the hard foam layer . location of the end caps are such that holes can later be drilled through the wall thickness to convert the repeat builder to a bridge mandrel to enable mounting of thin sleeves to its outer surface . after extended use and wear , the outer sleeve can be removed by expanding it with air and replacing it with a new outer sleeve thus extending the useful life of the unit and / or modifying its outer diameter .

a food package is provided that includes a rigid plastic base tray having a plurality of compartments and being covered by a flexible film which is air tightly sealed to flanges of the tray to hermetically seal the respective compartments . the tray is constructed and arranged to stand - up on at least one of its four sides .

a process is disclosed for producing plastic materials by providing a biology based feedstock and reacting the biology based feedstock to form a feedstock capable of reaction to form the plastic material , wherein the plastic material is selected from polystyrene and polyethylene terephthalate .

peg and related polymer derivatives having weak , hydrolytically unstable linkages near the reactive end of the polymer are provided for conjugation to drugs , including proteins , enzymes , small molecules , and others . these derivatives provide a sufficient circulation period for a drug - peg conjugate and then for hydrolytic breakdown of the conjugate and release of the bound molecule . in some cases , drugs that previously had reduced activity when permanently coupled to peg can have therapeutically suitable activity when coupled to a degradable peg in accordance with the invention . the peg of the invention can be used to impart water solubility , size , slow rate of kidney clearance , and reduced immunogenicity to the conjugate . controlled hydrolytic release of the bound molecule in the aqueous environment can then enhance the drug delivery system .

the present disclosure relates to a process for recycling aqueous sludge and / or waste , comprising : adding , in a dry process cement production line , the aqueous sludge and / or waste into a raw material or into a vertical mill simultaneously with the raw material , and mixing and grinding the raw material and the aqueous sludge and / or waste in the vertical mill to prepare a raw material powder containing the aqueous sludge and / or waste , wherein the water content in the resulting mixture is adjusted to be within the range from 3 % to 15 % by weight , so that the comprehensive water content and material plasticity of the mixture in the vertical mill can be adjusted , and then calcining the obtained raw material powder containing the aqueous sludge and / or waste into cement clinker by a conventional means ; or mixing and grinding coal briquettes and the aqueous sludge and / or waste to prepare pulverized coal containing the sludge and / or waste , so that the water content and plasticity of the coal can be adjusted and combustion performance of the coal can be improved , wherein the adding amount of the aqueous sludge and / or waste range from 1 % to 30 % by weight of the coal briquettes . the present disclosure also provides a cement raw material powder and a pulverized coal prepared by said process .

a package is disclosed containing a picture postcard and a utilitarian item , both the postcard and the telephone card bearing the same illustration . the package is of transparent plastic for simultaneous viewing of both the postcard and the utilitarian item . the postcard can be removed and mailed the same as any souvenir card and the utilitarian item can be separately employed and / or displayed .

a durable erosion control blanket featuring a novel synthetic fiber filler is disclosed . the erosion control blanket of the present invention addresses the need for a particularly resilient erosion control blanket through the use of a post - consumer , crimped , polyester fiber filler material . in one embodiment , the post - consumer fiber material is of polyethylene terephthalate readily available in post - consumer form from the recycling of soda bottles . in short , a preferred filler material for the blanket of the present invention would utilize recycled soda bottle material which has been converted into a crimped , highly - resilient fibrous filler . it is , thus , possible to achieve the desired physical and mechanical properties in the erosion control blanket of the present invention while conserving natural resources to some extent by using a readily available post - consumer polymer material .

there is disclosed a method for the ammonia saturation of wood to impart flexibility thereto which includes the step of sealing the surfaces of ammonia - saturated wood with a polymeric film which has limited or no permeability to either or both ammonia and water vapor . preferably , the polymeric film is flexible so the working of the wood product by bending , twisting , embossing , molding , etc . will not destroy the film . the polymeric film should also be soluble in a selected solvent , thereby permitting its removal after the wood has been formed in a final , desired shape to permit water vapor to re - establish crosslinking of the cellulose chains and restore its natural , rigid condition .

a folder made from a roll of folder material stock . the folder has a front flap having a first top edge and a first width , and a rear flap connected to said front flap by a folder bottom , the rear flap having a second top edge and a second width . a slip - resistant portion is disposed on at least one of the flaps near said first or second top edge . the folder material stock comprises paper and a polymer material . a method of making the folder includes the steps of providing folder material stock comprising polymeric material , providing embossing dies in spaced , operable , mating relationship , positioning the folder material stock appropriately in the embossing dies , applying force to at least one of the embossing dies so as to decrease the spaced relationship , and deforming the folder material stock .

a method for making biocompatible polymeric matrices , particularly polymeric particles , that have functional groups on the surface thereof are provided . the method comprises : providing a biocompatible base polymer ; providing a surface - active , functional polymer , hereinafter referred to as an “ safp ”; entangling chains of the base polymer with chains of the safp , both of which are in a mobile state ; and then demobilizing the base polymer chains to form a polymeric particle or matrix having a specific geometry . polymeric particles having functional groups on the surface thereof are also provided . the particles comprise a biocompatible base polymer and an safp . the safp comprises one or more interactive regions for physically cross - linking with the base polymer , and one or more hydrophilic regions . the particles have a core region and an outer region having a an outer surface . the core region contains a plurality of biocompatible base polymer chains . the outer region of the particle contains a plurality of biocompatible base polymer chains and the interactive regions of the safp . the hydrophilic functional region or regions of the safp chains extend from the surface of the particle when the particle is placed in an aqueous solution .

the invention relates to a laminated fabric heater element , heater and a process for manufacturing the heater element and heater . the heater comprises an electrically conductive fabric layer attached to bus bars , is sandwiched between two thermoplastic films forming a heater assembly . in the process making the heater element or heater , the layers of the heater assembly by consolidating the layers of films and fabric into a single sheet heater without the use of adhesive resins . the heater can be made of variable geometry , electrical supply voltage and power , and can withstand more mechanical , chemical , ultraviolet radiation and other environmental stresses than prior art heaters .

a chromatography solid support which is prepared by immersing a microporous inorganic substrate in a radiation - polymerizable monomer and subjecting said monomer to high energy radiation to produce a radiation - induced polymerization of the polymerizable monomer is disclosed .

a cutting tool for forming a hole in the wall of a plastic pipe has a body portion defined by a rear grasp portion and by a frontal portion . the frontal portion is provided at one end with a through going vertical passage which accommodates the cutting element therein and guides the cutting element . a frontal portion of the body has a mounting pin and the body has an upper compartment with a spring . a pressure handle enables pivotal displacement thereof between an erected position and a depressed position which enables forceable displacement of the cutting element from an uppermost position to a lowermost position and vice versa .

the invention relates to a device for producing hollow bodies from thermoplastic material in which web - or strip - type preforms of plasticized plastics material are shaped in a multi - part tool which forms a mold nest , with two outer molds and a central mold which perform opening and closing movements with respect to one another . the central mold is provided with at least one device for receiving and manipulating components to be fastened in the interior of the hollow body by means of a material and / or form - fitting joint . prior to the fastening of the components to the inner wall of the hollow body to be produced , the components are heated by means of a radiant heating device . the radiant heating device is advantageously integrated in the central mold of the tool .

in the brake booster known in the prior art , the partition wall comprises a metal disc supported by a control hub made of a plastic material . the force exerted on the partition wall is transmitted through the hub to a force transmitting member actuating a master brake cylinder . according to the present invention the hub is composed of a metal sleeve transmitting the forces and a guiding neck of plastic material including all air guiding channels of the control valve disposed therein . this guiding neck can be manufactured much easier and can be made of a plastic material of just sufficient strength to meet the reduced force transmitting requirements .

a multi - function process is described for the separation of cellulose fibers from the other constituents of lignocellulosic biomass such as found in trees , grasses , agricultural waste , and waste paper with application in the preparation of feedstocks for use in the manufacture of paper , plastics , ethanol , and other chemicals . this process minimizes waste disposal problems since it uses only steam , water , and oxygen at elevated temperature in the range of 180 ° c . to 240 ° c . for 1 to 10 minutes plus a small amount of chemical reagents to maintain ph in the range 8 to 13 . an energy recuperation function is important to the economic viability of the process .

there is disclosed apparatus for incorporation in conventional bottle capping or bottle filling and capping machines to improve the handling of plastic bottles with pre - threaded screw caps and with a three dimensional bottom surface commonly employed and referred to as a petaloid shape . the normal flat table surface on which bottles rest while the cap is being screwed on is replaced with a surface having upstanding , radially - arranged fingers positioned to extend into all or most of the spaces between the lobes in the bottom of the petaloid bottle at each bottle capping station and form a nest for such bottles . generally conventional bottle receiver and guide elements cause the bottles to assume a position substantially upright and coaxial with the center of the array of fingers for the particular bottle capping station . one embodiment of the apparatus includes a depression in the table surface to receive the bottom of a petaloid bottle and the fingers are located in that depression . other embodiments of the apparatus have a generally flat surface except for the upstanding fingers . most embodiments of the apparatus have no moving parts as such , but one embodiment has depressible , spring - loaded fingers to facilitate entrance and exit of the bottom of the bottle from the nest of fingers . the apparatus serves to prevent rotation of bottles as the screw caps are tightened without knives or pins engaging the top of the bottle as heretofore commonly employed .

the invention pertains to a method for treating foamed plastic particles 32 that are present in pourable form , as well as a device for carrying out the method . the invention is characterized by the fact that the foamed plastic particles 32 are reduced in volume in an evacuated environment and then introduced into a mold 10 , 34 , 46 , 52 , 56 , in which the foamed plastic particles 32 are subsequently restored toward their original outer shape in a non - evacuated environment .

the invention relates to a closure cap which is preferably produced according to a plastic injection moulding method and provided with a closure stopper which can be placed on a neck opening which is also preferably made of plastic , said neck opening being that of a bottle container . the closure cap is provided with a bottom and the closure stopper is formed on the inner side of the cap bottom opposite the neck opening . in order to create a functionally secure stopper , said closure stopper is arranged on a plane in a parallel position with regard to the cap bottom such that it can pivot in relation thereto .

the invention relates to component parts comprised of at least two alternating layers comprising a polyphenylene ether - containing molded piece and an elastomeric thermoplastic block copolymer of the type a - b - a , wherewith a represents a styrene block and b a soft phase block ; and a method of manufacturing the same .

a process for producing polymer - supported metal nanoparticles involves confinement of metal nanoparticles in polymeric nanotubes or nanosheets in an aqueous environment using hydrophobic reactants . metal nanoparticles supported in the polymeric nanotubes or nanosheets are substantially monodisperse and have an average particle size of 4 nm or less . the polymer - supported metal nanoparticles are useful in fuel cells , sensors , bioanalysis , biological labeling or semi - conductors , especially as catalysts .

a rigid , durable construction material is described along with a method for making the material . the material is particularly characterized by having a specific , textured surface which can resemble stucco and which can be reproduced exactly any desired number of times . the unique surface charactistics of the invention are obtained by preparing a reusable mold which is obtained by a reverse casting of a polymeric gel onto a cellular foam surface . the construction material of the invention is essentially a laminated , rigid backing having a polymeric surface with the desired texture obtained by casting onto the reusable mold .

a molded polymeric container generally symmetric about a vertical axis includes at least two rows of panels disposed circumferentially around the body , the panels having central portions that are sufficiently flexible to be dimensionally responsive to changes in pressure within the container . at least one row of the panels has a margin having a horizontal width exceeding the vertical height , thus being laterally elongate with a height / width aspect ratio of less than one . the pressure responsive central portion of each laterally elongate panel is a smooth outwardly projecting dome from a peripheral root of a generally radially projecting wall defining the margins of circumferential rings and posts separating the panels . the outwardly projection domes of the laterally elongate panels can have a variety of shapes .

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

a cleaning apparatus capable of sufficiently removing foreign matters such as coating or labels from surfaces of crushed pieces of the collected polymeric mold product is provided . the cleaning apparatus includes a cleaning bath provided with a rotary shaft extending in the longitudinal direction and having a water supply port , a drainage port as well as an introduction port and a discharging port for polymeric pieces , screw sections having a screw provided on the rotary shaft and flow - path restricting sections having stationary plates standing upright from the inner surface of the cleaning bath to restricting the advancement of water caused by the screw , wherein at least part of a surface of the stationary plate is roughened .

a food container for shipping and displaying food items is provided . the food container is made up of a base container having an upper perimeter portion that is configured to be closed using a label seal . the label seal replaces a lid or cover and enables a significant reduction in the amount of plastics used in food containers of this type . the label seal is adhesively applied to the upper perimeter portion of the based contained and is cut to size to the same perimeter edge of the container . a tamper evident feature can be integrated into the label seal technology disclosed herein .

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 .

process for a worm extruder or continuous kneader to produce either a degasses paste or plastic composition is disclosed . a mixture of either solid or liquid organic peroxides in the paste or plastic composition having evaporable constituents are introduced into the device , homogenized and degassed by exposing the mixture to a degassing passage of the extruder . the mixture has a free surface which is more than 40 % of the cross - section of the degassing passage and the minimum gas passage cross - section of the return delivery device amounts to at least about 0 . 1 times the degassing passage cross - section .

the invention relates to a composition comprising a 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 and 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 .

applicant has proposed a combination of the subretinal and epiretinal methods by placing the electronics external to the eye , entering the eye through the pars plana and the piercing the retina from inside the eye to stimulate subreintally . the present invention is an improved electrode array for subretinal stimulation . a hard polymer such as polyimide is biocompatible and strong for supporting an electrode array and supporting traces in a thin flex circuit array . in the present invention applicant takes advantage of the sharp nature of thin polyimide making a point on the end of the electrode array . this allows the flexible circuit electrode array to be both electrode array and surgical tool to cut the retinal and slide the array under the retina in a single action .

a membrane - electrode assembly includes a catalyst layer formed on both sides of a polymer electrolyte membrane , a platinum - metal alloy catalyst included in the catalyst layer , wherein the alloy catalyst shows a diffraction peak in a 110 plane at a degree of 2q = 30 − 35 in the measurement of x - ray diffraction . the alloy catalyst has an excellent stability due to the compact crystal lattice structure of the catalyst , and it incurs low production costs and has sensitive reactivity .

apparatus and method for removing an ink image from a plastic substrate , particularly a plastic container such as a cup , are provided . a solvent capable of solvating the ink image is utilized in order to de - ink articles so that they can be recycled and re - imprinted thereby reducing waste associated with printing line start up . as the articles may be intended for use with food and beverage products , a safe and non - toxic solvent may be selected . however , to ensure that the article is not contaminated with foreign materials prior to human use , the de - inked article may undergo a rinse and drying operation to remove solvent residues and uv light treatment to eliminate any harmful microorganisms that may be present on the article &# 39 ; s surfaces .

the present invention is directed to a paint color sample display device for the illustration of paint colors and a method for making such a color display device . the color display device may be a color fan deck which displays color on each side of the blades of the fan deck . the fan blades include a painted polymeric film laminated to both sides of a base paper to form a painted film / base paper / painted film laminate for the fan blades .

an endotoxin binding material affixed to a support is disclosed . one embodiment is a matrix material capable of binding endotoxins and comprising a polar , water - insoluble , high molecular weight polymer support to which is attached groups which adsorb endotoxin molecules . the groups comprise bifunctional aliphatic molecules , one end of which is bound to the support , the other end of which is bound to an aryl molecule . the invention has utility in the removal of endotoxins from biological fluids and other solutions and for concentrating endotoxins so that they may be subsequently detected and quantified .

the invention includes a microbe - mitigating architectural barrier that includes a barrier forming material , and at least one biocide . the barrier forming material may be a bitumen product , an elastomeric polymer and combinations thereof . the microbe - mitigating architectural barrier may be formed by applying an emulsion composition directly to an architectural surface , or may be pre - formed and adhered or otherwise secured to the architectural surface in the form of a sheet or film . the invention also includes architectural assemblies and / or building envelopes that include the microbe - mitigating barrier . related methods encompassed within the invention include a method of preparing an architectural barrier that includes : preparing an emulsion that comprises a barrier forming material chosen from a bitumen product , an elastomeric polymer and combinations thereof , and at least one biocide , applying the emulsion to at least one architectural surface , and drying and / and or curing the emulsion to form a barrier .

a container which includes a thermoformed or injection molded rigid or semi - rigid plastic body and a metal end seamed upon and closing one open end of the body . critical shaping of the plastic container body permits seaming a conventional metal end upon the body with conventional seaming techniques and tooling .

copper - lined laminates are formed by galvanically depositing a copper layer on a portion of at least one of two endless press bands arranged to define a reaction zone between two generally parallel sides thereof . after depositing of the copper layer , the press bands are moved through the reaction zone and resin impregnated plastic webs are also moved between the press bands in the reaction zone to form a laminated structure which is then stripped from the press bands to form the copper - lined laminates .

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 solder structure comprising a radially - curved exterior surface enclosing a predetermined - sized cavity used for flexibly joining together at predetermined conductive contact points two planar elements having dissimilar properties . by assembling the two planar elements in a tiered arrangement , one planar element having an annular conductive pad and the other planar element having either a corresponding annular or circular conductive pad , separated by a spherical solder compound comprised of solder and a fluxing agent , a hollow solder structure can be created during a melting and subsequent cooling of the solder compound . the plasticity / resiliency characteristics of the resulting hollow solder structure absorbs lateral movement of the two planar elements relative to each other without degradation of the solder joint .

this invention is related to the use of polyurethane based polymer as a drug delivery device to deliver biologically active compounds at a constant rate for an extended period of time and methods of manufactures thereof . the device is very biocompatible and biostable , and is useful as an implant in patients for the delivery of appropriate bioactive substances to tissues or organs . the drug delivery device for releasing one or more drugs at controlled rates for an extended period of time to produce local or systemic pharmacological effects comprises : 1 . a reservoir , said reservoir comprising ; 2 . at least one active ingredient ; and , optionally , 3 . at least one pharmaceutically acceptable carrier ; a polyurethane based polymer completely surrounding the reservoir .

the invention relates to a storage head for a blow moulding machine for discontinuous manufacture of multi - layer co - extruded and blow - moulded hollow bodies made of thermoplastic . to improve the product quality and to increase the throughput , each distributor element is designed as a spiral channel distributor which distributes the individual molten plastic streams uniformly at the periphery . the ejector consists of at least two concentric tubular pieces and the peripherally distributed plastic streams issue from the front face of the ejector and unite to form a single multi - layer flexible plastic tube in the storage space in the storage head housing below the ejector .

a coating material with a primer layer , a middle layer and a surface layer and its method of application which includes the steps : spraying the primer layer material onto an article ; spraying or brushing the middle layer material with a first color until satisfactorily coated ; repeating step with the middle layer material having a second color and allowing drying ; and spraying the surface layer material of pu imitation porcelain material and allow drying to obtain the article with superior imitation ceramic effect . the present invention can be applied to any plastic and poly articles , therefore reducing the exploitation and use of organic soil and natural resources for producing ceramic articles . since the material used is biodegradable , therefore effectively decreasing the level of pollution and damages to the environment and hence lessening the health hazards to human .

a method of coating implantable open lattice metallic stent prosthesis is disclosed which includes sequentially applying a plurality of relatively thin outer layers of a coating composition comprising a solvent mixture of uncured polymeric silicone material and crosslinker and finely divided biologically active species , possibly of controlled average particle size , to form a coating on each stent surface . the coatings are cured in situ and the coated , cured prosthesis are sterilized in a step that includes preferred pretreatment with argon gas plasma and exposure to gamma radiation electron beam , ethylene oxide , steam .

the invention relates to a process for crosslinking aromatic polymers containing radiation - sensitive methylene groups by exposing the polymers to ionizing radiation thereby causing crosslinking of the polymers through the methylene groups . crosslinked polymers are resistant to most organic solvents such as acetone , alcohols , hydrocarbons , methylene , chloride , chloroform , and other halogenated hydrocarbon , to common fuels and to hydraulic fluids in contrast to readily soluble uncrosslinked polymers . in addition , the degree of crosslinking of the polymers depends upon the percentage of the connecting groups which are methylene which ranges from 5 to 50 % and preferably from 25 to 50 % of the connecting groups and is also controlled by the level of irradiation which ranges from 25 to 1000 mrads and preferably from 25 to 250 mrads . the temperature of the reaction conditions ranges from 25 ° to 200 ° c . and preferably at or slightly above the glass transition temperature of the polymer . the crosslinked polymers are generally more resistant to degradation at elevated temperatures such as greater than 150 ° c ., have a reduced tendency to creep under load and show no significant embrittlement of parts fabricated from the polymers .

myelodysplastic syndromes display both hematological and biological heterogeneity with variable leukemia potential . to determine whether micrornas expression offers diagnostic discrimination or influences malignant potential in mds , bone marrow mirna expression was investigated from prognostically distinct mds subsets using a microarray platform . after background subtraction and normalization , data were analyzed indicating thirteen mirna signature with statistically significant differential expression , including down - regulation of members of a leukemia associated mirna family . a unique signature consisting of 10 mirnas was closely associated with international prognostic scoring system risk category permitting discrimination between lower and higher risk disease . selective overexpression of mirna - 181 family members was detected in higher risk mds , indicating pathogenetic overlap with acute myeloid leukemia . analysis of mirna expression profile offers diagnostic utility , and provides pathogenetic and prognostic discimination in mds .

a method of producing copper powder is provided that uses electrolytic cuprous oxide as the starting material for the production of copper powder suitable for a conductive filler whose particles have an average particle diameter of not greater than 1 μm or even not greater than 0 . 5 μm and are of uniform size . in one aspect , the method comprises a step of mixing cuprous oxide with a reducing agent in a liquor in which a protective colloid is present and to which a water - soluble copper salt has been added and in another aspect comprises a step of reducing a water - soluble copper salt in a liquor in which a protective colloid is present , thereby forming a slurry , and a step of reducing cuprous oxide in the presence of the slurry . as the water - soluble copper salt can be used , for example , 0 . 1 - 20 moles of a monovalent copper salt such as cuprous chloride per 100 moles of the cuprous oxide . as the protective colloid can be used 1 - 40 parts by mass of a water - soluble polymer per 100 parts by mass of the cuprous oxide .

a moldable polymeric compound containing about 50 to 99 weight percent of a polyvinyl alcohol and about 1 to 50 weight percent of an oxa acid plasticizer , suitable for molding biodegradable and water dispersible objects such as tampon applicators .

for producing a plastic film having a plastic fastener , with male and female interlockable profiles , and accessory strips , such as ribs and strips , in preparation of a reclosable plastic bag , there is provided a first forming die which extrudes the accessory strips , a separate second forming die which extrudes the fastener , a pair of nip rolls for press - bonding the accessory strips onto the surface of the film being fed in the vicinity of the first forming die , and a bonding roll for receiving the film with press - bonded accessory strips and the fastener from the second forming die placed onto the film surface such that the fastener is bonded to the surface of the film at the bonding roll by virtue of heat .

the present invention relates to methods for functionalizing a surface , comprising exposing a surface of a polymeric material to an atmospheric pressure glow plasma discharge , wherein exposure to the plasma discharge functionalizes the surface of the polymeric material . the present invention further provides for methods for functionalizing a polymeric material , wherein the functionalized surface has conjugated thereto bioactive agents . the present invention is also directed to compositions comprising a functionalized surface with attached bioactive agents .

new anti - reflective or fill compositions having improved flow properties are provided . the compositions comprise a styrene - allyl alcohol polymer and preferably at least one other polymer in addition to the styrene - allyl alcohol polymer . the inventive compositions can be used to protect contact or via holes from degradation during subsequent etching in the dual damascene process . the inventive compositions can also be applied to substrates to form anti - reflective coating layers having high etch rates which minimize or prevent reflection during subsequent photoresist exposure and developing .

composite membranes that exhibit long - term resistance to biofouling comprise a porous support and a crosslinked polyamide discriminating layer having an external surface , the discriminating layer comprising a branched poly polymer attached to its external surface . the branched pao polymer typically has the structure of a molecular comb or brush , and is made by polymerization of a pao macromonomer of the following formula : ro — n — o ] m — v in which r is hydrogen or a c 1 - 20 aliphatic or aromatic group , v is any group containing a polymerizable site , each r ′ is independently hydrogen or a short chain alkyl group , n is an integer of 1 - 6 , and m is an integer of 1 to about 200 . the α end group can be either polymerized or copolymerized .

an injection mold apparatus for forming molded plastic articles comprising a polymer supply source ; a mold cavity ; conduit connecting the mold cavity and the supply source ; an injection assembly for injecting molten polymer into the mold cavity and a gate valve associated with the conduit and having an elongate central passage terminating in an outlet orifice and a needle positioned in skewed relationship with the elongate central passage and selectively insertable into the orifice in a closed position and retractable from the orifice and the elongate central passage to provide an unrestricted polymer flow in an open position .

a method and apparatus for the attachment of plastic outer body panels to automotive vehicle subframes including positioning a cup within apertures in the subframe , applying a thixotropic heat curable plastic / adhesive to the cup , heat curing the plastic / adhesive in situ while forming a blind aperture in the plastic / adhesive , and securing the body panel to the subframe through threaded insertion of a fastener into the blind aperture .

to provide a material monitoring system for biomass plastic from its source , information , such as weight , mass , or volume , in each nth node is transmitted at prescribed in and out timings to a central management server . based on the information , the management server carries out monitoring of the original material &# 39 ; s mass or volume which is presently onsite at the nth node . while material distribution elements will in reality branch off and become complex , the total quantity of the original material which the management server manages does not change . should an error arise in a change in the total quantity of the original material which the management server manages , it will be possible to suspect an illicit event and to investigate the cause thereof based on the management information .

the process of this invention can be utilized to stabilize tin - coupled rubbery polymers . it is particularly useful for stabilizing rubbery polymers that do not contain bound styrene . this invention more specifically discloses a process for improving the stability of a tin - coupled rubbery polymer which comprises adding 0 . 1 phr to about 4 phr of styrene to a living rubbery polymer to produce a styrene capped rubbery polymer , adding a tin halide to the styrene capped living rubbery polymer to produce the tin - coupled rubbery polymer , and optionally , adding a tertiary chelating alkyl 1 , 2 - ethylene diamine or a metal salt of a cyclic alcohol to the tin - coupled rubbery polymer . the use of metal salts of cyclic alcohols is preferred because they do not lead to recycle stream contamination . this is because cyclic alcohols do not co - distill with hexane or form compounds during steam - stripping which co - distill with hexane . in other words , the boiling points of these metal salts of cyclic alcohols are very high , so they do not co - distill with hexane and contaminate recycle streams . additionally , metal salts of cyclic alcohols are considered to be environmentally safe . in fact , sodium mentholate is used as a food additive .

a press for moldinig thermoplastic , thermosetting , polyurethane polymeric articles comprises three workstations arranged side by side and including a central molding station and two lateral stations for cooling and extracting molded articles . two molds are rigidly connected to one another and controlled by a transfer pusher which alternately moves the molds from the molding station to either of the cooling and extraction stations . a first presser at the central molding station applies a closure pressure necessary for the material injection , while auxiliary presser arranged in each station applies a reduced secondary pressure to the molds at the end of the injection step , during the translatory motion of the mold and during the cooling step .

a method for producing an opaque polymeric film comprises : extruding a base layer comprising a polymeric matrix and at least one cavitating agent ; coextruding at least one additional layer on at least one side of the base layer ; cooling the coextruded multi - layer film ; and then orienting the film in at least the machine direction ; wherein at least said base layer contains a syndiotactic polystyrene polymer , and wherein said syndiotactic polystyrene polymer is in the form of solid , non - hollow particles during the orienting step .

biodegradable polymeric therapeutic implant materials incorporating bioactive ceramics such as bioglass ® ceramic are provided . these implants provide increased mechanical properties and ph control , enabling the use of these materials to design porous and nonporous therapeutic implants used as cell scaffolds for healing of tissue defects or fixation devices , having desired degradation times , mechanical properties , elasticity and biocompatibility .