Abstract: A process for preparing a crosslinked polymer comprises reacting a polycyanoacetic functional monomer or polymer with a poly .alpha.,.beta.-unsaturated ester in the presence of a catalytically effective amount of a metallic catalyst. A crosslinked polymer produced by this process is also described.

Abstract: A photopolymerizable composition comprises a polymerizable epoxy-containing material, a polymerizable monomer or monomers containing one or more ##STR1## groups wherein R is H or CH.sub.3, a cationic photoinitiator, a radical-type photoinitiator and an alcohol accelerator.

Abstract: Cross-linking agents are produced by reacting an ester of a di- or poly-carboxylic acid with a molar excess of ammonium hydroxide, thereby forming a di- or polyamide, which in turn is then methylolated and etherified with a lower alkanol. These products are cross-linkers for resins such as alkyds, oil-free polyesters, acrylic which can be either acid or hydroxy functional, phenolics, epoxies or melamines.

Abstract: An insulating composition comprising in combination a liquid binder, a heat expanded polystyrene material in bead or granular form and a reinforcing pigment, said liquid binder comprising a 95.5 to 50:50 mixture, by weight of an acrylic or vinyl polymer emulsion and an alkali metal silicate, said expanded polystyrene being present in an amount ranging from 5 to 25 percent by weight of said composition.

Abstract: A method of making an acrylic microgel resin which comprises preparing an aqueous microgel emulsion of an acrylic resin which is crosslinked with a multifunctional crosslinking agent, removing water from the emulsion by coagulation and/or azeotropic distillation with an organic solvent in which the microgel is insoluble and which forms an azeotrope with water, and incorporating the thus dehydrated microgel into an acrylic resin which has been prepared by solution polymerization in organic solvent.

Abstract: This invention relates to an improved process for the preparation of methacrylamide by the reaction of methylmethacrylate with a molar excess of aqueous ammonium hydroxide at or near ambient temperatures to provide a high purity and yield of methacrylamide reaction product that is compatible in the preparation of isocyanate resins.

Abstract: A method of making an acrylic microgel resin which comprises preparing an aqueous microgel emulsion of an acrylic resin which is crosslinked with a multifunctional crosslinking agent, removing water from the emulsion by coagulation and/or azeotropic distillation with an organic solvent in which the microgel is insoluble and which forms an azeotrope with water, and incorporating the thus dehydrated microgel into an acrylic resin which has been prepared by solution polymerization in organic solvent.

Abstract: A self-curing single package zinc rich coating composition utilizing a novel copolymer binder composed of a mixture of alkyl silicate and alkyl titanate that cures upon exposure to atmospheric moisture in accordance with the equation:xSi(OR).sub.4 +yTi(OR').sub.4 +2(x+y) H.sub.2 O.fwdarw.(SiO.sub.2).sub.x (TiO.sub.2).sub.y +4xROH+4yR'OHwherein R and R' are alkyl groups selected from a group of alkyls consisting of ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl and 2-ethyl hexyl.Coating compositions utilizing the novel copolymer binder are formulated from a non-catalyzed silicate ester and an alkyl titanate ester having about 10% to 60% by weight titanate as TiO.sub.2 of the total weight of TiO.sub.2 and SiO.sub.2.

Abstract: A caprolactone-modified acrylic polymer comprising the product obtained by polymerizing a mixture of vinyl monomers, including at least one such monomer containing a --COOH and/or --OH group, with caprolactone.

Abstract: Coating powders for use in the preparation of protective films comprising a mixture of a caprolactam-blocked organic polyisocyanate and a hydroxy-containing polyester or a hydroxy-containing acrylic or methacrylic polymer, wherein the acrylic or methacrylic polymer is derived from the polymerization reaction of a hydroxy lower alkyl acrylate or methacrylate, one or more lower alkyl acrylates or methacrylates, and optionally styrene or vinyl toluene. The proportions of the .epsilon.-caprolactam-blocked organic polyisocyanates and the hydroxy-containing polyesters or acrylic or methacrylic polymers in the mixture are such that there are about 0.8 to 1.20 blocked isocyanate groups for each hydroxy group in the polyester or acrylic or methacrylic polymer.