Patent ID: 6890994

Claim:
A primary carbamate functional acrylic polymer comprising randomly repeating units of the formula: wherein x is a primary carbamate group, n is an integer of 2 or more, n′ is an integer of 1 or more, R 0 , R 1 , R 2 , R 3 , R 4 and R 5 are independently H, an alkyl group, an aromatic group, or mixtures thereof, at least one R 1 or R 2 group is not hydrogen, L is a linking group, y represents from 2 to 100% by weight, based on the total weight of all ethylenically unsaturated monomers in the monomer mixture, A represents functional or nonfunctional repeating units derived from one or more ethylenically unsaturated monomers, z represents from 0 to 98% by weight, based on the total weight of all ethylenically unsaturated monomers in the monomer mixture, and substantially all primary carbamate groups x are attached to carbon atoms having a lower degree of substitution than a carbon atom to which linking group L is attached, wherein the primary carbamate functional acrylic polymer is the polymerization reaction product of a monomer mixture comprising a primary carbamate functional ethylenically unsaturated monomer of the structure: wherein X is a primary carbamate group, n is an integer of 2 or more, n′ is an integer of 1 or more, R 0 , R 1 , R 2 , R 3 , R 4 and R 5 are independently H, an alkyl group, an aromatic group, or mixtures thereof, at least one R 1 or R 2 group is not hydrogen, and L is a linking group.