Copolymers of alpha-olefin type monomers and curable film-forming compositions containing them

A curable film-forming composition comprising:

• (a) a polymeric binder comprising a copolymer, said copolymer being a polymerization product of:
• (i) a monomer having alpha-olefinic functionality;
• (ii) a monomer different from (i) having active hydrogen functionality;
• and
• (iii) a monomer different from (ii) having acrylic functionality;
• wherein the molar ratio of the monomer (i) having alpha-olefinic functionality to the monomer (iii) having acrylic functionality is less than 1:1, and the conversion of the monomer (i) having alpha-olefinic functionality during polymerization is greater than 90%, and wherein when monomers having methacrylic functionality are used to prepare the copolymer, the molar ratio of the monomer (iii) having acrylic functionality to the monomers having methacrylic functionality is greater than 2:1;
• and
• (b) a curing agent having functional groups that are reactive with active hydrogen functionality.