Patent ID: 6652919
Filing Date: 2003-11-25
Classification: B05D,C09D,Y10T

Abstract:
A scratch-resistant multicoat paint system on a primed or unprimed substrate, comprising above one another in this order(A) a basecoat, (B) a first clearcoat as intermediate coat, and (C) a second clearcoat as the topmost coat, wherein the second clearcoat comprises a reaction product comprising (C1) at least one of an oligomer and a polymer comprising at least one pendant group comprising at least one allophanate group and optionally at least one carbamate group of the formulae: â€”Oâ€”(CO)â€”NR2â€”Oâ€”(CO)â€”NHâ€”(CO)â€”NH2 â€ƒand (C2) at least one crosslinking agent comprising at least two functional groups which undergo crosslinking reactions with the pendant group.