Abstract: A primer coated, oriented plastic film material is provided wherein the primer is applied in an aqueous medium comprising a water dispersible copolyester consisting essentially of the condensation product of components A, B, C, and D or their polyester forming equivalents as follows:(A) about 60 to 75 mole percent of terephthalic acid;(B) about 15 to 25 mole percent of at least one dicarboxylic acid of the formula HOOC(CH.sub.2).sub.n COOH, wherein n ranges from about 1-11;(C) greater than from about 6 up to about 15 mole percent of at least one sulfomonomer containing an alkali metal sulfonate group attached to a dicarboxylic aromatic nucleus, and(D) stoichiometric quantities, i.e., about 100 mole percent of at least one aliphatic or cycloaliphatic alkylene glycol copolymerizable therewith having about from 2 to 11 carbon atoms.The copolyester priming layer may be applied to the plactic film at any suitable stage during manufacture of the film, i.e., before or during the stretching operations.

Abstract: A composite article of this invention is made by successive molding steps and comprises an insert assembly that includes a metallic portion and a plastic locating framework in which the metallic portion is precisely mounted with respect to references points on the locating framework. The locating framework is mounted within a housing with the insert assembly precisely positioned with respect to the housing to cause the metallic portions to be substantially precisely positioned with respect to an external surface of the housing. In one embodiment, which is a hand tool that is moved slidably along a connector to sever conductors, a cutting blade is substantially precisely positioned in the locating framework of the insert assembly. Plastic is flowed about the framework in a mold cavity to form the housing.

Abstract: This disclosure is concerned with a novel multiple quartz fiber or similar yarn braided, supportable cylindrical sleeve carrying catalytic coatings for effective flameless catalytic combustion of an air-gas mixture axially fed to the cylinder.

Abstract: An industrial fabric having a plain woven fabric in which the warp and weft are textured, continuous filament, polyester yarns.

Abstract: A composite fiber comprises at least a two layer structure of a sheath and a core, each layer comprising a vinylidene fluoride resin, the core portion having an inherent viscosity of 1.10 dl/g and the sheath portion having an apparent viscosity lower than that of the core portion, said composite fiber having a birefringence of at least 36.0.times.10.sup.-3. This composite fiber, which has excellent knot strength (as high as 91 kg/mm.sup.2), high tensile strength (as high as 103 kg/mm.sup.2), excellent luster, and high processability and productivity, is produced by preparing a composite comprising a core portion of a vinylidene fluoride resin having an inherent viscosity of at least 1.

Abstract: This invention provides a radio opaque fibre comprising polypropylene, a coupling agent and 55% to 70% of barium sulphate. The coupling agent is preferably isopropyl triisostearoyl titanate. The fibre finds particular application in manufacture of surgical swabs and dressings.

Abstract: A particulate polyolefin molding material is disclosed. The material is comprised of a particulate polyolefin particle having a bulk density of 0.45 g/cc or more and a mean particle size of 150 to 2,000.mu., and a layer comprising a compounding additive and a binder formed on the surface of the particle. The material can be used in producing molded articles without first forming the material into pellets as is conventionally done.

Abstract: A leather-like sheet material having low slip characteristics comprising:a sheet material having a fibrous substrate and a surface layer consisting of a polymer mainly composed of polyurethane elastomer, andan acryl-modified polyurethane resin spread on the said surface,whereby the sheet material has a remarkably high friction coefficient, and is adapted to balls, baseball gloves, bags, cases and the like which are required to prevent slipperiness.

Abstract: A hydrophilic, water-absorbing acrylonitrile polymer fiber is obtained when the fiber is structured from a hydrophilic acrylonitrile polymer so as to contain a water-hiding cavity and to have a filament denier in the range of about 0.75-2.0.

Abstract: A new and improved method for preparing a fire resistant electrical-conductor is disclosed in which a length of a metal core conductor is first wrapped with a mica-impregnated glass tape to form a continuous first layer, and then an outer coat of a heat-curable platinum catalyzed silicone rubber composition is applied around the tape layer which is cured to form a fire resistant insulation for the electrical conductor. The insulated conductors of the invention provide circuit integrity under fire and may be useful in critical circuitry such as fire alarms and elevators.

Abstract: A composite characterized by a controlled coefficient of thermal expansion and comprising a thermal coefficient control fabric embedded in a resin matrix and composed of yarns with positive and negative coefficients of thermal expansion. A composite circuit board constructed of the composite and having a coefficient of thermal expansion matched to a particular integrated chip carrier material, such as aluminum oxide.

Abstract: A coated rubber cord comprising a core member coated with a woven cover material in the texture of which a single or a plurality of rubber strings are mixedly woven.

Abstract: A laminated reflective panel comprises at least one mirror sheet which is less than 2.0 mm in thickness and which bears a reflective coating on its rear face. Each mirror sheet is laminated to a flat glass backing sheet which is thicker than the mirror sheet. The backing sheet is preferably of float glass.

Abstract: A heat-retaining moisture-transmissible water-resistant fabric which comprises (i) a fibrous substrate, (ii) a polymer layer having a multiplicity of interconnecting fine pores (layer A), formed on at least one surface of the substrate, and (iii) a polymer layer (layer B) formed on layer A, layer B contains 15 to 70 wt. %, based on the polymer of the layer B, of heat ray-reflecting fine metal pieces and has a multiplicity of interconnecting fine pores communicating from the surface to the interior and also has on the surface thereof fine pores, most of which have a size not larger than 5 .mu.m. The fabric may comprise, in lieu of layer B, (iv) a microporous polymer film layer (layer C), formed on layer A and having a multiplicity of interconnecting fine pores communicating in all the direction in the interior of layer C, most of which have a size of at least 1 .mu.m, and (v) a polymer layer (layer D) containing 10-70 wt.

Abstract: The present invention relates to yarns and fibers based on atactic polyvinyl chloride. They possess a residual shrinkage in boiling water of less than 3%, a modulus of elasticity which is greater than or equal to 2 kN/mm.sup.2, an orientation index of the crystalline zones which is greater than or equal to 70%, an orientation index of the mesomorphic zones which is greater than or equal to 8%, and an orientation index of the amorphous zones which is greater than or equal to 5%. They are obtained by spinning and stretching in a known manner, then stabilization under tension at a temperature between 105.degree. and 130.degree. C., in the presence of steam under pressure, for 1 to 3 seconds, and then shrinkage in an aqueous fluid medium at a temperature between 98.degree. and 130.degree. C.

Abstract: A varnish suitable for spray coating on plastic insulated copper conductors restores cracked or damaged insulation. The varnish cures by reaction in air upon application to the conductors. The varnish comprises drying oil (typically, tung oil and castor oil), phenolic resin, metallic catalysts, and solvents.

Abstract: A bristle material is disclosed having improved stiffness, and comprised of a thermoplastic matrix comprising a blend of nylon and polyester and containing an abrasive filler.

Abstract: Polyamide carpet fibers coated with a certain class of fluorine-containing addition polymer are described. The coating is chemically bonded to the fiber surface through amide linkages (--NHCO--) of the polyamide. The coating imparts antisoiling properties of a permanent nature to the fibers. Where applied to carpet yarn, the coating has good retention through carpet dyeing operations and does not significantly interfere with the ability of the carpet to take up dye, even in the case of foam dyeing which is particularly sensitive to fluorocarbon coatings.

Abstract: Disclosed is a shaped body exhibiting good long-term thermal stability, comprising at least one fluorohydrocarbon polymer which can be processed by melting, and at least one heat-resistant thermoplastic polymer, wherein at least the fluorohydrocarbon polymer forms a phase which is coherent or at least largely coherent. The weight ratio of the fluorohydrocarbon polymer to the thermoplastic polymer preferably varies between about 80:20 and about 20:80. The shaped body is preferably a film used as a layer of insulation.

Abstract: Saturated aliphatic polyesters having a repeating unit which has the structural form of a residue of a glycol combined with a residue of a diacid or the form of a residue of a hydroxy acid, the number of carbon atoms in the shortest chain between ends of the residues being in the range of 3 to 10 for the glycol residue and no more than 12 for the diacid residue or for the hydroxy acid residue, provide polyether-based spandex fibers with improved resistance to discoloration induced by exposure to nitrogen dioxide fumes.