Abstract: A heat-curable resinous coating composition comprising as a binder component(A) 5 to 90% by weight of a hydroxyl-containing resin selected from hydroxyl-containing acrylic resins and hydroxyl-containing polyester resins,(B) 5 to 50% by weight of an amino resin, and(C) 1 to 90% by weight of a crosslinkable resin selected from (C-a) polyfunctional resins having a number average molecular weight of at least 1000 and containing at least two carboxyl groups and at least two epoxy groups on an average per molecule and (C-b) polyorganosiloxanes having a number average molecular weight of at least 500 and containing at least two silanol groups on an average per molecule and if required, further containing an epoxy group.

Abstract: A dispersion of fine particles of a gelled polymer obtainable by copolymerizing and crosslinking a vinyl monomer mixture containing at least 0.5% by weight each of at least two vinyl monomers in the presence of a macromonomer A, which has a molecular chain of poly(12-hydroxystearic acid) and has at least about one polymerizable unsaturated double bond per molecule in average, and a macromonomer B, which is a copolymer of an ethylenic unsaturated monomer and has a solubility parameter value of from 7.5 to 9.2 and about 1.0 to about 1.

Abstract: A thermosetting resin composition comprising as main components(A) an acrylic resin containing in the molecule a carboxyl group, a hydroxyl group and an epoxy group and having an acid value of 15-150 mg KOH/g, a hydroxyl value of 30 mg KOH/g or more, an epoxy equivalent of 3,000-15,000 and a number-average molecular weight of 3,000-30,000,(B) an acrylic resin containing in the molecule a carboxyl group, a hydroxyl group and an epoxy group and having an acid value of 2-10 mg KOH/g, a hydroxyl value of 30 mg KOH/g or more, an epoxy equivalent of 250-2,500 and a number-average molecular weight of 3,000-30,000 and(C) an amino resin,wherein the molar ratio of the carboxyl group of the component (A)/the epoxy group of the component (B) is 1/0.5 to 0.5/1 and the amount of the component (C) is 10-40% by weight based on the total amount of the components (A) to (C). The resin composition is useful for use particularly in top coat paint composition for automobile outer panels.

Abstract: A dispersion of fine particles of a gelled polymer obtainable by copolymerizing and crosslinking a vinyl monomer mixture containing at least 0.5% by weight each of at least two vinyl monomers in the presence of a macromonomer A, which has a molecular chain of poly(12-hydroxystearic acid) and has at least about one polymerizable unsaturated double bond per molecule in average, and a macromonomer B, which is a copolymer of an ethylenic unsaturated monomer and has a solubility parameter value of from 7.5 to 9.2 and about 1.0 to about 1.