Patent ID: 6225434
Filing Date: 2001-05-01
Classification: C08G,C08L,C09D,Y10T

Abstract:
A multi-component composite coating composition comprising a base coat deposited from a pigmented film-forming composition and a transparent top coat applied over the base coat in which the transparent top coat is deposited from a film-forming composition comprising:(a) an ungelled organic polysiloxane having reactive functional groups, said polysiloxane comprising at least one unit of the following structure (I): ##STR4##wherein R.sup.1 and R.sup.2 are independently selected from the group consisting of OH and monovalent hydrocarbon groups; which optionally contains one or more reactive functional groups, wherein the polyvalent linking group is X is an organic polyvalent linking group selected from the group consisting of alkylene, oxyalkylene, and alkylene aryl, and X is derived from a material having two or more unsaturated bonds capable of undergoing hydrosilylation reaction; and n has a value ranging from 2 to 4 such that n is equal to the number of unsaturated bonds capable of undergoing hydrosilylation reaction; and(b) a curing agent having functional groups reactive with the functional groups of (a).