Abstract: A medical material and a medical device comprising an aromatic vinyl compound/&agr;-olefin random copolymer according to the present invention, are materials which contain substantially no chlorine and which have not only excellent flexibility, transparency and proper resilience but also radiation resistance and biocompatibility, and they are hence advantageously used especially in the medical field.

Abstract: A bladder shell for inflatable balls having at least a pair of layers of compounded synthetic latex and compounded natural rubber latex or at least a layer of blended synthetic latex and natural rubber latex compounded with anti-oxidant, activators, accelerators, thickening and wetting agents, stabilizers etc. to form a low air permeability and high bounce bladder shell having thickness of between 0.25 mm to 3.0 mm.

Abstract: A nonbleeding bias charging member having an outer layer on a supporting substrate with fluorinated carbon and zinc oxide dispersed in the outer layer material, where bleeding of contaminants to imaging members is decreased or eliminated.

Abstract: The present invention relates to laminated membranes formed by multi-layer processing techniques including alternating layers of thermoplastic urethane and a copolymer of ethylene and vinyl alcohol. The membranes are characterized in that hydrogen bonds are formed between the layers of thermoplastic urethane and the copolymer of ethylene and vinyl alcohol. The membranes are characterized in that hydrogen bonds are formed between the layers of thermoplastic urethane and the copolymer of ethylene and vinyl alcohol.

Abstract: By achieving an extruded, foamed core formed from plastic material peripherally surrounded and integrally bonded with a cooperating synthetic, plastic, extruded, outer layer, a unique, multi-component, multi-layer synthetic closure is provided which may be employed as a bottle closure or stopper for any desired product, whether the product is a liquid, a viscous material, or a solid distributed in a bottle or container and dispensed through the open portal of the container neck. The present invention achieves a mass producible, resilient, synthetic bottle closure which is employable for any desired bottle, including wine. By employing the present invention, a multi-component or multi-layer synthetic closure is attained which possesses physical properties substantially equal to or better than the physical properties found in cork material, which has caused such cork material to be the principal closure material for wine bottles.

Abstract: An article, particularly a glove or condom, of polyisoprene that is cross-linked with a curing package that comprises diisopropyl xanthogen or xanthogen disulfide. The glove or condom surface is smooth, continuous and defect-free as viewed with a scanning electron microscope. The articles demonstrate improved latex stability over polyisoprene articles currently in use.

Abstract: The present invention relates to a resin composition comprising 5 to 60 parts by weight of a polyphenylene ether resin and 40 to 95 parts by weight of a crystalline polypropylene resin, and further containing a hydrogenation product of an aromatic vinyl compound-conjugated diene copolymer in an amount of 1 to 30 parts by weight based on 100 parts by weight of said polyphenylene ether resin and crystalline polypropylene resin combined, said crystalline polypropylene resin forming a continuous phase while said polyphenylene ether resin forming a disperse phase, the ratio of the weighted average inter-particle-wall distance (Lw) to the added average inter-particle-wall distance (Ln) of said disperse phase, Lw/Ln, being 1.0 to 3.0.

Abstract: A multilayer automotive hose includes an innermost layer of elastomer material, and a separate outermost layer of elastomer material, each including between about 40% and about 80% vinylacetate by weight in a copolymer. The elastomer layers are formed by an extrusion process. The vinylacetate is copolymerized with polyethylene. Each of the elastomer layers has a fully saturated backbone. As a result, each of the innermost and outermost layers is a non-thermoplastic elastomer.

Abstract: The present invention is related to a two-side treated formed rubber article having a polymer coating on the outer surface; and a chlorinated inner surface. It is also related to a process for making gloves using a polymer as a mold release and anti-blocking agent on the outside of the glove, and a chlorination of the glove inside surface. The rubber article can be formed as a powder-free glove.

Abstract: Method of molding flexible polymeric envelopes, the mold useful therefor, and the products that are produced by such a method. The essence of this process is the ability to injection mold the polymeric envelopes, cure or dry them on the mold core, and in spite of the small opening left by the molding process as compared to the size of the large core, eject the molded product without splitting or tearing the product in the process of demolding using gas injection to expand the molded product.

Abstract: The present invention relates to a multi-layer hose for automobile cooling systems which comprises at least two layers of inner layer and outer layer wherein: (1) the material for inner layer is a composition which contains a polymer containing a carboxyl group and/or its derivative group in the molecule and a dynamically crosslinked olefin thermoplastic elastomer, the content of the polymer containing a carboxyl group and/or its derivative group thereof in the molecule being 5-50% by weight based on the total weight of the composition and (2) the material for outer layer comprises a polyamide thermoplastic resin.

Abstract: This invention relates to olefin polymers particularly suited to satisfying the dielectric properties required in electrical device use. The olefin polymers can be prepared by contacting polymerizable olefin monomers with catalyst complexes of Group 3-11 metal cations and noncoordinating or weakly coordinating anion compounds bound directly to the surfaces of finely divided substrate particles or to polymer chains capable of effective suspension or solvation in polymerization solvents or diluents under solution polymerization conditions. Thus, the invention includes polyolefin products prepared by the invention processes, particularly ethylene-containing copolymers, having insignificant levels of mobile, negatively charged particles as detectable by Time of Flight SIMS.

Abstract: A hose of a laminated structure which comprises a rubber layer composed of a rubber composition, and a laminate comprising a metal foil and a resin, the rubber composition comprising:

Abstract: Powder-free natural rubber and synthetic elastomer gloves having an inner coating of a cross-linked polyurethane impregnated with silicone and their method of manufacture are described. The gloves exhibit good grippability, good donnability as measured by their wet and dry coefficient of friction, tensile strength, elongation to break and stress at 500% modulus.

Abstract: The invention provides a flexible plastic formulation capable of being extruded, blow-molded, ethylene oxide and radiation sterilized. The plastic formulation of the invention comprises: a) from about 60 to about 94 percent by weight of a copolymer consisting essentially of ethylene and vinyl acetate units; b) from about 5 to about 25 percent by weight of a block copolymer, the block copolymer consisting essentially of a central block copolymer molecule including generally equal proportions of ethylene and butylene units, and terminal blocks of polystyrene; and c) from about 1 to about 15 percent by weight of an ultra-low density polyethylene material. The plastic formulations of the invention are useful in the manufacture of blood bags, tubing and the like.

Abstract: Thermoplastic compositions comprising a bulk polymer, an additive, and a compatibilizer/emulsifier/surfactant (CES) are described. The bulk polymer comprises an alkylene terephthalate or naphthalate polyester such as polyethylene terephthalate. The additive comprises an amorphous or substantially amorphous co-polymer of ethylene and a co-monomer that forms polar portions, such as methacrylate, butylacrylate, ethyl acrylate, or ethylhexyl methacrylate. The CES comprises a co-polymer or ter-polymer of ethylene and a glycidyl acrylate or maleic anhydride, and optionally an acrylate such as methacrylate, ethylacrylate, propylacrylate, butylacrylate, ethylhexylacrylate, or mixtures thereof. The thermoplastic compositions of the present invention exhibit improved molding properties, high dimensional stability, high temperature resistance, and are particularly useful in food-grade applications such as dual-ovenable containers.

Abstract: A rubber laminate in which a rubber layer (1) containing the following rubber composition (A) is adhered by vulcanization to a rubber layer (2) containing another rubber composition (B). Rubber composition (A): Composition comprising 100 parts by weight of a mixture and 0.1 to 15 parts by weight of a peroxide crosslinking agent admixed therewith, the mixture comprising 5 to 95 wt. % of a peroxide-crosslinkable fluororubber containing vinylidene fluoride copolymerized therein in a proportion of 45 to 88 mole % and having a number average molecular weight of 20,000 to 200,000, and 95 to 5 wt. % of an acrylic rubber containing 0.1 to 1.5 wt. % of a polyfunctional monomer copolymerized therein and having a functional group rendering the acrylic rubber peroxide-cocrosslinkable with the fluororubber and a functional group effecting the copolymerization of the monomer with an acrylic ester.

Abstract: A bale of elastomer composite is formed of elastomer and filler, the bale having a void volume of at least 3%. In another aspect, a container is provided, at least a portion of the container being occupied by elastomer composite pieces of elastomer and filler, wherein the occupied portion of the container has a void volume of at least 3%.

Abstract: Porous polymers having a plurality of openings or chambers that are highly convoluted, with each chamber being defined by multiple, thin, flat partitions are produced by a new gel enhanced phase separation technique. In a preferred embodiment, a second solvent is added to a polymer solution, the second solvent causing the solution to gel. The gel can then be shaped as needed. Subsequent solvent extraction leaves the porous polymeric body of defined shape. The porous polymers have utility as medical prostheses, the porosity permitting ingrowth of neighboring tissue. The present technique also enhances shape-making capability, for example, of bifurcated vascular grafts, which feature a common entrance region but two or more exit regions.

Abstract: The present invention broadly comprises a construction material constructed from a plurality of flexible strips, the strips are helically wound upon one another to form a cylindrical pole. The pole may incorporate bolts, nails, screws and polymers for securing the flexible strips to one another. The construction material is generally constructed from discarded tires and may comprise a utility pole, a guardrail, a signpost and may be suitable for many other construction applications.

Abstract: A bladder shell for inflatable balls having at least a pair of layers of compounded synthetic latex and compounded natural rubber latex or at least a layer of blended synthetic latex and natural rubber latex compounded with anti-oxidant, activators, accelerators, thickening and wetting agents, stabilizers etc. to form a low air permeability and high bounce bladder shell having thickness of between 0.25 mm to 3.0 mm. The present invention also defines a process for the preparation of the bladder shell comprising formation of at least a layer of natural rubber latex and a synthetic latex each. The process of the present invention comprises dipping the former in not only a natural rubber latex bath but also in the synthetic latex bath. In an another embodiment, the process comprises dipping the former in the bath comprising blended natural rubber latex and synthetic latex.

Abstract: A composition which provides gas, flavor, and aroma barrier to substrates, where the composition is formed by mixing an ethylenically unsaturated acid, a bis-silane and a polyamine.

Abstract: A peelable, heat-sealable foil for closing containers, for example cups, of synthetic plastics material, in particular polystyrene, consists of one single, biaxially oriented layer of impact-resistant polystyrene, in admixture with a styrene-butadiene-double-blockcopolymer.

Abstract: A multilayer plastic pipe comprising at least three layers, which in turn comprise at least two different polymers, which are a polymer A (barrier layer polymer), which is a particularly good barrier against permeation of the medium to be carried through the pipes embedded in a polymer B (sheathing polymer) in the form of at least one layer which is interrupted at least once by a fillet of polymer B.

Abstract: The invention includes a process of preparing a coupled polymer comprising heating an admixture containing (1) at least one polyolefin comprising ethylene and optionally at least one comonomer which is selected from alpha olefins having at least 3 carbon atoms, dienes and combinations thereof said polyolefin having a molecular weight distribution of less than or equal to about 3 and (2) a coupling amount at least one poly(sulfonyl azide) to at least the decomposition temperature of the poly(sulfonyl azide) for a period sufficient for decomposition of at least about 80 weight percent of the poly(sulfonyl azide) and sufficient to result in a coupled polymer; particularly where the polyolefin is the product of polymerization of ethylene and optionally at least one other alpha-olefin in the presence of a single site catalyst (transition metal like Va or Cr, metallocene or constrained geometry). The amount of poly(sulfonyl azide) is preferably from about 0.01 to about 5 weight percent of the polyolefin.

Abstract: Coextruded, intumescent fire-protection strips jacketed on three sides, obtained by coextruding an intumescent composition composed of a thermoplastic elastomer with a processing temperature of not more than 250° C. selected from the class consisting of block copolymers and uncrosslinked thermoplastic polyolefins, sulfuric-acid-treated graphite, flame retardant, and an inorganic additive which forms an enamel or forms a ceramic, and a three-sided jacket, where appropriate in association with a chambered profile, made from a thermoplastic elastomer with a processing temperature of not more than 250° C. selected from the class consisting of block copolymers and uncrosslinked thermoplastic polyolefins, flame retardant, and, where appropriate, a color pigment, where the fire-protection strips may be designed either as a hot-gas seal or else as a combined cold- and hot-gas seal with spatially separated functions.

Abstract: The invention includes a process of preparing a coupled polymer characterized by heating an admixture containing (1) at least one ethylene polymer or blend of ethylene polymers having a density of at least about 0.89 g/mL and less than about 0.935 g/mL and a comonomer content between about 0.5 and 50 weight percent of an alpha olefin having greater than 2 and less than 20 carbon atoms per molecule and (2) a coupling amount of at least one poly(sulfonyl azide) to at least the decomposition temperature of the poly(sulfonyl azide) for a period sufficient for decomposition of at least about 80 weight percent of the poly(sulfonyl azide) and sufficient to result in a coupled polymer. The amount of poly(sulfonyl azide) is preferably from about 0.01 to about 5 weight percent of polymers in the admixture. The invention also includes any composition which is the product of any of the processes of the invention and articles made from those compositions, particularly any film of any composition of the invention.

Abstract: Products in the form of cushioning devices made from flexible membranes employing at least one layer including thermoplastic urethane and at least one layer of a copolymer of ethylene and vinyl alcohol are inflatable to a relatively high pressure. The cushioning devices maintain the internal inflatant pressure for extended periods of time by employing a phenomenon referred to in the industry as diffusion pumping. Ideally, the cushioning devices of the present invention can be permanently inflated with gases such as nitrogen or air.

Abstract: The present invention provides polyethylene resin and its compounds for container uses, which realize molding of thin-walled articles and high-speed molding, achieves/achieve excellent printability and stress cracking resistance and are suitable for container uses involving tubes, bottles, etc., and containers. Specifically, there are provided a polyethylene resin compound for container uses comprising linear polyethylene having a narrow molecular weight distribution and satisfying specific properties and containers produced therefrom.

Abstract: An electrostatographic component having a substrate and an outer coating of a thin, conformable perfluoroelastomer, wherein the outer coating has a thickness of from about 1 to about 75 micrometers, and wherein the unit manufacturing cost of developing the component is decreased and adhesion of the layer is increased.

Abstract: A glass article provided with an organic functional film on a surface thereof of the present invention is characterized in that a coating film removable with a solvent is formed on at least a portion of the functional film. A method for handling a glass article with a handing tool of the present invention is characterized in the a glass article is handled with a handling tool via a coating film removable with a solvent between a surface of the tool in contact with the glass article and a surface of the glass article.

Abstract: The present invention relates to an ethylene-&agr;-olefin copolymer; a composition thereof; a film thereof; a polar group-containing resin material; and productions and use of the ethylene-&agr;-olefin copolymer. The ethylene-&agr;-olefin copolymer of the present invention is characterized in satisfying the following conditions (A) to (E): (A) a density in the range of 0.92 to 0.96 g/cm3; (B) a melt flow rate (MFR) in the range of 0.01 to 200 g/10 min; (C) a molecular weight distribution (Mw/Mn) in the range of 1.5 to 5.

Abstract: Thermosetting and thermoplastic elastomers are provided having magnetic filler packed within the elastomeric matrix and capable of being aligned and energized, before, during or after the molding of the elastomer. The magnetically-filled elastomers therefore provide useful permanent magnetic fields which being physically soft. The magnetic filler is aligned within the elastomeric matrix and energized by subjecting the magnetically-filled elastomer to magnetic energy before, during and/or after molding of the magnetically-filled elastomer. A particularly preferred magnetically-filled elastomer is a magnetically-filled polyurethane elastomer composition wherein the elastomer is the reaction product of a urethane-forming compound having at least two urethane-forming reactive sites, an elasticizing diol or triol, and a diisocyanate reacted in less than stoiciometric amounts to allow for the formation of urethane linkages involving less than about 85% of the urethane-forming reactive sites.

Abstract: A multilayer composite comprising at least the following layers: I. a layer I of a polyamide molding composition and II. a layer II of a polyester molding composition, where the layers are firmly bonded to each other without use of an additional layer of bonding agent, wherein the polyester molding composition comprises a mixture of: a) from 80-99% by weight of a polyalkylene 2,6-naphthalate selected from the group consisting of polyethylene 2,6-naphthalate and polybutylene 2,6-naphthalate, and b) from 1-20% by weight of one or more compounds containing at least two isocyanate groups, wherein, in addition, the isocyanate groups from component IIb are present in layer II in a concentration of from 0.03-3% by weight.

Abstract: Asphalt is packaged in containers having breakage means, such as short notches, long channels, wedges or molded parts, to allow for easy breakage into smaller portions for ease of handling and feeding into kettles. Asphalt is also packaged so as to improve cold flow of the block while simultaneously reducing fumes at the kettle. The containers have various features to enhance processability and handleability, including a handhold portions and/or scooped portions.

Abstract: An overflow preventer comprising a plug receivable in a drain hole and provided with a valve movable between a first closed position and a second open position, the valve being resiliently biased to the first position while the pressure on the valve is less than a predetermined value.

Abstract: The invention relates to an article, in particular a glove, a condom, or the like, which is comprised of a flexible rubber and/or plastic, is embodied having at least one section of the surface intended contact or rest against human skin, which article is provided with a slip coating in a section of the surface. This slip coating is comprised of a polymeric material and at least in sections, has repeating shape deviations of the surface that are recessed in relation to a raised, net-like structure. The ratio of the average spacings between the shape deviations to their depth in relation to the raised, net-like structure is between 500:1 and 5:1 and the average roughness depth is between 0.5 and 100 &mgr;m, preferably between 1 and 40 &mgr;m.

Abstract: Adhesion promoting compositions comprising mixtures of carboxylated unsaturated polymers and a) amines; b) amine derivatives; or c) mixtures of hydroxy compounds and quaternary phosphonium salt accelerators or quaternary ammonium salt accelerators are useful as components of curable elastomer compositions. The curable compositions exhibit excellent adhesion to fluoropolymers.

Abstract: A tube for externally covering or bundling electric cables is provided for suppressing radiation of undesired electromagnetic waves. The tube is made of a material in which soft magnetic powder is mixed with and dispersed into an organic binding agent. For protecting the cable from the undesired electromagnetic waves from the exterior, it is preferable to provide a conductor layer at an outer side of a composite magnetic layer. For facilitating mounting onto the cable, the tube is provided with a slit in a longitudinal direction. Alternatively, the cable may have a spiral structure. As an organic binding agent, it is preferable to use an elastomer which is excellent in extensible property. Further, it is preferable that the soft magnetic powder is powder being essentially flat.

Abstract: The present invention provides a heat shrinkable film comprising at least one layer of a thermoplastic resin and having a heat shrinkage in the main orientation direction of 10% or less after treatment in a hot water at 70° C. for 2 seconds, and 65% or more after treatment in hot water at 90° C. for 10 seconds, the heat shrinkable film preferably having a natural shrinkage in the main orientation direction of 2.5% or less after being allowed to stand at 40° C. for 7 days.

Abstract: A cover member for an illuminated push button switch capable of providing the hard touch with fingers when it is incorporated in a switch unit and facilitating formation of a symbol/character display section exhibiting distinct display and aesthetic properties. In the cover member, key tops each are provided at a distal end thereof with a hard resin section. The resin section is integrally mounted thereon with a rubber section and then a symbol/character display section is formed on a flat surface of the rubber section. The rubber section is fixed on the flat surface thereof to a movable section of a substrate. Such construction provides a user with a satisfactory feeling in operation, effectively prevents wearing of the symbol/character display section, provides the symbol/character display section with an aesthetic appearance without any defect and ensures increased durability of the cover member, resulting in a commercial value of the cover member being highly increased.

Abstract: A resin composition comprising (A) a polyolefin resin, (B) a vinyl alcohol copolymer and (C′) a block copolymer composed of a polymer block of an aromatic vinyl compound and an isobutylenic polymer block, the weight ratio of (A) to (B) ranging from 100/10 to 100/1000 and the weight ratio of (C′) to [(A)+(B)] ranging from 5/100 to 1000/100 is a flexible resin material having high gas barrier properties, good heat resistance and good moldability or formability so that it is useful as a material for various molded or formed articles.

Abstract: A transfix member with a substrate, an optional conformable intermediate layer, and thereover an outer fluorosilicone layer, and a heating member associated with the substrate.

Abstract: A plasticizer having a specific SP value and a specific molecular weight is added to NBR having a specific AN content in an ultrahigh range, or a blend of such NBR and less than 25 percent by weight of PVC so that a good balance may be obtained between its amount and the AN content of the NBR. A fuel hose for a vehicle having an inner wall layer formed from such a rubber composition and an outer wall layer formed from a rubber material having ozone resistance or cure flatting resistance is provided. The rubber composition is of good fuel impermeability and low temperature properties and also has a high conductivity. The hose is of good fuel impermeability and low temperature properties and also has a high conductivity.

Abstract: The invention provides amembrane that includes as a gas-barrier component a polyester polyol-modified polyurethane, the polyester polyol portion having repeating units in which the total number of carbon atoms is about eight or less. The membrane has a gas transmission rate of 15.0 or less for nitrogen gas.

Abstract: Powder-free natural rubber and synthetic elastomer gloves having an inner coating of a nitrile rubber with an intermediate layer of a rubber blend comprised of natural or synthetic rubber and nitrile rubber interposed between the nitrile coating and the base glove and their method of manufacture are described. The intermediate layer of the rubber blend interposed between the coating and the glove imparts a unique surface texture to the glove which aids donning and eliminates self-sticking of the inner glove surfaces, especially after the glove has been sterilized by radiation. Additionally the gloves of the invention exhibit good grippability, good donnability, superior tensile strength, elongation to break and stress at 500% elongation.

Abstract: The present invention provides a raw rubber lapping film formed of an ethylene·&agr;-olefin random copolymer comprising ethylene unit and an &agr;-olefin unit having 4 to 20 carbon atoms and a raw rubber bale lapped with this film. Since the film is superior in strength and release properties and has good dispersibility in ethylene·&agr;-olefin copolymer rubber, the operation of lapping raw rubber with a film, the operation of stripping a film from a lapped raw rubber bale and the operation of separating each of a plurality of raw rubber bales are carried out easily and yet there is no adverse effect on the subsequent rubber processing step without stripping the film by heating at a temperature higher than the melting point of the film at the time of kneading.

Abstract: Soft, thin-walled elastic articles such as condoms and gloves are made of films of a linear polyurethane which has been so made as to have physical properties close to those of a similar film of natural rubber. The polyurethane is made from poly(propylene glycol) polyols with no more than 0.01 milliequivalents unsaturation per gram, and has a molecular weight Mn of 90 to 150 kg/mol, a ratio Mw:Mn of 1.2 to 2.2, and a ratio of hard:soft segments of 20:80 to 40:60. The film has an S100 of less than 2.0 MPa, an elongation at break of at least 800%, and a tensile strength of above 15 MPa.

Abstract: It is an object of the present invention to provide a plastic article having moist touch, which differs from the smooth touch peculiar to the conventional plastic articles. A plastic article is characterized in that the surface of the article is at least partially constituted from a styrenic thermoplastic elastomer, an olefinic thermoplastic elastomer, a blend of a styrenic thermoplastic elastomer and a polyolefin, or a blend of an olefinic thermoplastic elastomer and a polyolefin.

Abstract: An outsole (1) comprises a projection (2) provided on a bottom face. A portion of the bottom face other than the projection (2) is a concave portion (3). The outsole (1) is molded by crosslinking a rubber composition. A base polymer of the rubber composition contains 30% by weight or more of an acrylonitrile-butadiene rubber having a glass transition point of −40° C. to 0° C. A loss factor curve of the outsole (1) has a peak temperature of −30 ° C. to 0° C. The peak temperature of the loss factor curve is measured by means of a viscoelasticity spectrometer. The measurement is carried out on such a condition that an initial strain is 10%, an amplitude is ±2%, a frequency is 10 Hz, a starting temperature is −100° C., an ending temperature is 100° C., a temperature rising speed is 3° C./min and a deformation mode is a tension.