Abstract: Adhesion and environmental resistance of rubber-metal assemblies is significantly improved by the use of metal substrates which have been nitrided at least in the bond area and subsequently exposed to a non-reactive gas, such as argon, prior to applying the adhesive.

Abstract: Adhesion of silicone elastomers to metal substrates, especially zinc phosphatized metal substrates, is significantly improved by exposing the substrate to a glow discharge plasma selected from the group consisting of at least one inert gas, at least one organosilicon compound or a combination thereof, prior to the application of any adhesive materials to such substrates.

Abstract: Imide-amines having the structure ##STR1## wherein ##STR2## are certain cycloaliphatic or aromatic groups and R and R individually are hydrogen, halogen, an alkyl group having from 1 to 4 carbon atoms, hydroxy, carboxyl, and amine and when taken together represent ##STR3## wherein R.sup.2 is the same as R and R.sup.1, have been found to provide cured epoxy resin systems characterized by high temperature stability and excellent mechanical and physical properties.

Abstract: Organotin semiconductor thin films are deposited on a substrate by plasma deposition of reactive organotin species. Conductivity can be increased by heat-treating organotin semiconductors in a reducing atmosphere at a temperature below the melting point of tin. Organotin semiconductors are rendered conductive by exposure to electron or particle beam.

Abstract: The precipitation from solution of amine phosphate salts is materially inhibited by incorporating at least one carboxylated nitrile elastomer into compositions containing at least one tertiary dimethylaryl amine and at least one unsaturated organic monoester of phosphoric acid.

Abstract: Compositions comprising at least one isocyanate-functional organosilane, preferably in combination with at least one polyisocyanate, and, optimally, at least one aromatic nitroso compound having been found to be unexpectedly effective as storage-stable, single-package, one-coat adhesive systems for bonding a variety of elastomeric materials to themselves and other solid substrates, such as metal, fabric, ceramic, and the like substrates. The use of aromatic nitroso compounds is necessary with certain isocyanatosilanes and optional with others, but, in all cases, affords improved performance, especially with respect to environmental resistance.

Abstract: Novel structural adhesive systems for metal-bonding applications. The adhesives, comprising a solution or dispersion of a polymeric material in a monomer copolymerizable therewith having incorporated therein certain phosphorus-containing compounds, are characterized by an unexpected ability of providing strong adhesion to untreated metal surfaces without adversely affecting adhesive performance, including resistance to deleterious environments. The environmental resistance of the herein described adhesives can be further improved by the addition of one or more polybasic lead salts, metal molybdates and metal phosphates.

Abstract: Acyloin urethans can be employed to effect photopolymerization of free radical-polymerizable compositions in inert and oxygen-containing atmospheres.

Abstract: Thin film organic coatings of a polymeric nature are deposited on and merged into substrate surfaces by ion implantation of ionized organic monomers.

Abstract: Energy curable compositions which can be cured in the presence of air by exposure to actinic radiation contain at least one unsaturated urethane oligomer, said oligomer comprising the reaction product of at least one unsaturated active hydrogen-containing compound; at least one polyisocyanate; and at least one polyetherester, said polyetherester having in its main chain the residue of at least one poly(alkylene oxide) polyol.

Abstract: Unsaturated addition-polymerizable urethane resins prepared from at least one polyisocyanate, at least one monomeric or polymeric polyol, and at least one unsaturated addition-polymerizable monomeric organic compound characterized by the presence of a single isocyanate-reactive active hydrogen group, wherein said polyol has a hydroxyl functionality of at least 2.1, and the amount of polyisocyanate is sufficient to provide an NCO:OH ratio, with respect to said polyol, of at least 2.1:1, are characterized by reduced viscosity, improved physical stability, and by improved solubility and compatibility in organic solvents/diluents. Particularly advantageous resins are obtained by employing isocyanate-functional prepolymers as precursors for such unsaturated addition-polymerizable urethane resins.

Abstract: Acyloin urethanes can be employed to effect photopolymerization of free radical-polymerizable compositions in inert and oxygen-containing atmospheres.

Abstract: Acyloin urethans can be employed to effect photopolymerization of free radical-polymerizable compositions in inert and oxygen-containing atmospheres.

Abstract: Novel structural adhesive systems for metal-bonding applications. The adhesives, comprising a solution or dispersion of a polymeric material in a monomer copolymerizable therewith having incorporated therein certain phosphorus-containing compounds, are characterized by an unexpected ability of providing strong adhesion to untreated metal surfaces without adversely affecting adhesive performance, including resistance to deleterious environments. The environmental resistance of the herein described adhesives can be further improved by the addition of one or more polybasic lead salts, metal molybdates and metal phosphates.

Abstract: A rotary energy storage device includes a core in which a multiplicity of anisotropic filaments are embedded in a resin matrix. Extending through the core is an axis about which the core is rotatable. At least a portion of the filaments in the core are oriented transversely of each other, but not circumferentially of the axis of rotation. The transverse orientation of the filaments relative to each other produces resistance along at least two axes to radial and tangential stresses imposed on the core when it is rotated. The outer peripheral surface of the core is enclosed and snugly fitted by a shell. The shell includes a filamentary structure that provides a plurality of substantially parallel and juxtaposed filament portions oriented to circumscribe the peripheral surface of the core. The filament portions of the shell are encased in a matrix material that bonds adjacent filament portions to one another.

Abstract: Thermosetting addition-polymerizable unsaturated urethane or urea compositions have been developed which are especially suited for use as damage-preventive coatings for wood, metal, glass, ceramic, and plastic structures. The use of the coatings as containment vessels for photoflash lamps is described.

Abstract: Stable aqueous emulsions useful as coatings, primers for promoting vinyl plastisol adhesion to metal, and adhesives for bonding vinyl to metal with high environmental resistance, are described, which comprise: (a) aqueous polyurethane latexes substantially free of emulsifier and containing about 0.02 to 1% of a salt type group from the class consisting of ##STR1## (b) an aqueous casein cocondensed phenolic-formaldehyde resin emulsion; and (c) an ionic fluorocarbon surfactant; in proportions of about 25 to 99% (a), about 1 to 50% (b) and about 1 to 10,000 parts per million (c), by weight of the total composition. Such emulsions are useful per se as coatings and primers and single package adhesives. Two-package adhesives having superior properties are provided, in which the foregoing emulsions as part A are cured by a crosslinker, part B, in a ratio A:B in the range from about 100 to 2.5A:1B. The crosslinking agents may be glyoxal, melamineformaldehyde resins, or any formaldehyde donor.

Abstract: Adhesion of organic polymer-based compositions to substrate surfaces is enhanced by incorporating into such organic polymer-based compositions an effective amount of an admixture comprising at least one phenolic novolak resin, at least one polyepoxide, and an effective amount of at least one crosslinking agent. The organic polymer-based compositions containing the described admixtures are bonded to metal and other substrates over a wide temperature range, including temperatures substantially below the activation temperatures at which prior art adhesion promoters are most effective.

Abstract: Thermoplastic elastomeric materials are bonded to a variety of substrates over a broad range of temperatures and pressure by employing an adhesive system comprising thermoplastic polyether urethane.

Abstract: Energy curable compositions which can be cured in the presence of air by exposure to actinic radiation contain at least one unsaturated urethane oligomer, said oligomer comprising the reaction product of at least one unsaturated active hydrogen-containing compound; at least one polyisocyanate; and at least one polyetherester, said polyetherester having in its main chain the residue of at least one poly(alkylene oxide) polyol.