Cook Paint and Varnish Company

Glasurit America, Inc.

David P Leonard

Howard J Wright

Roger A Etzell

Joseph H Scherrer

James H Truesdale

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.

Cyanoacetic ester system

Multilayer coatings having at least one base coating containing pigments and at least one transparent top coating are applied from coating compositions on the substrates and cured together. The coating composition contains:

Coating composition containing cross-linked microparticles

Process for preparing a multilayer coating

A method of making a polyester or alkyd resin composition containing acrylic microgels comprises preparing an aqueous microgel emulsion of an acrylic resin which is crosslinked with a multifunctional crosslinking agent. The water from the emulsion can be removed by coagulation and/or azeotropic distillation with an organic solvent in which the microgel is insoluble and which forms an azeotrope with water. The resulting dehydrated microgel can be incorporated into a polyester or alkyd resin. Alternatively, the acrylic microgel emulsion can be incorporated into a water reducible alkyd resin.

Polyester or alkyd resin composition containing acrylic microgels

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.

Acrylic resin-acrylic microgel compositions

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.

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Overland Park, KS, United States of America

David P Leonard