Patent ID: 6670043
Filing Date: 2003-12-30
Classification: C09D,Y10T

Abstract:
A coated substrate comprising a substrate with a coating deposited thereon from a film-forming thermosetting composition comprising a co-reactable solid, particulate mixture of:(a) beta-hydroxyalkylamide crosslinking agent; and (b) polycarboxylic acid functional polymer prepared by atom transfer radical polymerization initiated in the presence of an initiator having at least one radically transferable group and in which said polymer contains at least one of the following polymer chain structures: â€”[(M)pâ€”(G)q]xâ€”orâ€”[(G)qâ€”(M)p]xâ€”wherein M is a residue, that is free of carboxylic acid functionality, of at least one ethylenically unsaturated radically polymerizable monomer; G is a residue, that has carboxylic acid functionality, of at least one ethylenically unsaturated radically polymerizable monomer; p and q represent average numbers of residues occurring in a block of residues in each polymer chain structure; and p, q and x are each individually selected for each structure such that said polycarboxylic acid functional polymer has a number average molecular weight of at least 250.