Patent ID: 7132477

Claim:
A thermosetting composition comprising a co-reactable solid, particulate mixture of: (a) a film forming material comprising functional groups; and (b) a crosslinking agent having at least two functional groups that are reactive with the functional groups in the film forming material (a) comprising a copolymer composition comprising at least 30 mol % of residues having the following alternating structural units: -[DM-AM]- wherein DM represents a residue from a donor monomer having the following structure (I): wherein R 1 is linear or branched C 1 to C 4 alkyl which may or may not be substituted with one or more functional groups; R 2 is selected from methyl, linear, cyclic or branched C 1 to C 20 alkyl, alkenyl, aryl, alkaryl and aralkyl, any of which may or may not be substituted with one or more functional groups; and AM represents a residue from one or more acrylic acceptor monomers; and (c) a monocarboxylic acid.