Patent ID: 6379807
Filing Date: 2002-04-30
Classification: C08G,C09D,Y10T

Abstract:
A coating composition comprising 40% to75% by weight of film forming binder and 25% to 60% by weight of a volatile liquid carrier for the binder; wherein the binder comprisesa. 20% to 70% by weight, based on the weight of the binder solids, of an acrylosilane polymer comprising polymerized monomers selected from the group consisting of an alkyl methacrylate, an alkyl acrylate, each having 1 to 12 carbon atoms in the alkyl group, cycloaliphatic alkyl methacrylate, cycloaliphatic alkyl acrylate, styrene or any mixture of these monomers; hydroxy containing monomers selected from the group consisting of: hydroxy alkyl methacrylate, hydroxy alkyl acrylate each having 1 to 4 carbon atoms in the alkyl group, or any mixtures of these monomers; and a mono-ethylenically unsaturated silane monomer; and wherein the polymer has a weight average molecular weight of 1,000 to 15,000 determined by gel permeation chromatography;b. 10% to 60% by weight, based on the weight of the binder solids, of an organic polyisocyanate; and c. 5% to 40% by weight, based on the weight of the binder solids, of a melamine component.