Abstract: A woven fabric belt having a coating of polyurethane on each face and extending through the interstices of the fabric. The polyurethane is the reaction product of a polypropylene ether glycol of 4,4'-methylene di(cyclohexylene isocyanate) cured with p,p'-methylene dianiline and having at least one face of said belt covered with the polyurethane having walnut shell powder incorporated therein.

Abstract: This polymer comprises (a) about 15 to 5 weight percent of units from at least one nitrile monomer of the formula ##STR1## where R is hydrogen or methyl; (b) about 75 to 90 weight percent of units from vinylidene chloride, and (c) about 10 to 5 weight percent of units from at least one acrylate monomer of the formula ##STR2## where R' is hydrogen or alkyl of 1 to 4 carbon atoms and R" is alkyl of 1 to 20 carbon atoms.

Abstract: A polyurethane reaction mixture mold release comprising 1 to 5 percent by weight of a sodium or potassium soap of a carboxylic acid of 11 to 22 carbons in a diluent of alcohol or water, the mold release being applied to a mold, then addition of a polyurethane reaction mixture to form a shaped polyurethane of the microcellular type, stripping the shaped article from the mold, flushing with water at 40.degree. to 95.degree.C., drying, applying a paint coat of 3 to 10 mils over the polyurethane article to obtain a polyurethane decorative article having a paint coat resistant to peeling.

Abstract: An elastomeric encapsulated chain wherein the individual links of the chain are covered with an elastomer suitably of polyurethane and in one embodiment the individual links of the chain are separated by a plug of elastomer to permit the chain to be pulled under tension to compress the elastomer plug.

Abstract: An acrylic composition useful for making films which are nonblocking and free of moisture-fogging tendencies made from acrylic polymers containing 40 to 80 parts of an alkyl acrylate or alkyl methacrylate having an alkyl group containing 2 to 10 carbon atoms and 20 to 60 parts vinyl nitrile by the use of several combinations of compounding agents, the combinations being sorbitan monofatty acid esters and polyoxyethylene monofatty acid esters.

Abstract: A container capable of passing the temperature requirements of U.S. Defense Department Specification MIL-T-25783 B and C (ASG) Tank, Fuel Aircraft and Missile Non-Self Sealing High Temperature Removable consisting of an inner layer of polyurethane elastomer of 2 to 30 mils adhered to at least one ply of nitrile rubber coated polyester fabric, said ply of nitrile rubber being adhered to an inner side of a barrier layer of a polyamide epoxy resin mixture and a nitrile rubber compounded with phenolic resin being used as a tie coat between the barrier and the polyester fabric.

Abstract: This invention relates to a composition of matter having an improved Scott brittle point comprising a mixture of a polyvinylidene chloride and a polyurethane formed by the reaction of a reactive hydrogen containing compound and sufficient organic polyisocyanate to give at least about 0.5 to about 10 percent by weight of free isocyanate and reacting to set the mixture.

Abstract: This invention relates to a method for obtaining improved adhesion in the preparation of polyester laminates by treating the surface with an isocyanate containing ethylenic unsaturation and then applying a polyester adhesive containing a peroxide curing agent and to the said laminates.

Abstract: A method of building an elastomeric fabric container by building an innerliner on a building form, applying a solvent solution of fluorocarbon elastomer over the innerliner and laying up fabric over the cement coat while the cement is sufficiently fluid to strike through the fabric to give at least one layer of fabric covered with at least one coat of fluorocarbon elastomer and curing the elastomer to give a finished container.

Abstract: This invention relates to an adhesive for use in forming laminates of polyester impregnated fiberglass. This adhesive comprises a reaction mixture of 100 parts of a reactive hydrogen containing polymeric material of about 700 to 4500 molecular weight selected from the class consisting of polyester polyols, polyether polyols and polyester amides, an organic polyisocyanate, at least 5 parts to no more than about 200 parts of an inert powdery filler with the proviso that the filler shall not exceed that amount which renders the resulting mixture unspreadable and sufficient monomeric nitrogen containing polyol having 3 to 6 hydroxyls to be essentially equivalent to the excess polyisocyanate. Catalysts of the tin and amine type may be utilized, if desired. Amounts of 38, 52 and 80 parts of organic polyisocyanate per 100 parts of the polymeric material are some of the levels used in some of the examples.

Abstract: A method of molding polyurethane articles using three mold release agents, the first being a halocarbon film, the second a hydrocarbon release agent and the third a polyvinyl alcohol release agent.

Abstract: This invention relates to a method of making sleeves or bladders for tire building machines for building bias angle tires, bias belted tires or radial ply belted tires by building the core of the sleeve of natural rubber, high cis polybutadiene, high cis polyisoprene, acrylonitrile-butadiene and butadiene styrene, and covering the outside of the core and at least part of the inside thereof with a layer of polyurethane elastomer, where the expose coat contains 0.5 to 10 percent by weight of silicone polycarbinol as slip agent.