Patent ID: 6916547

Claim:
A top coat formulation comprising a multifunctional unsaturated polyester polyol of the formula: (R 1 ) a R—[O—(C(O)—(CR 2 R 3 ) n —O—) m H] b wherein: a and b are, independently, equal to or greater than 1, and a+b combined are greater than 2, n is a number between 1 and 20, inclusive, m is a number between 1 and 50, inclusive, R is an alkyl, aryl, aralkyl or alkaryl, or substituted versions thereof, R 1 is an olefin-containing moiety, and R 2 and R 3 are, independently, H, alkyl, aryl, aralkyl, alkaryl, ether, alkoxy, acetal, ester, or substituted versions thereof, or R 2 and R 3 combine to form a cycloalkane wherein one or more of the carbons is optionally replaced with a heteroatom, wherein one or more of the C(R 2 R 3 ) groups can be replaced with a heteroatom.