Patent ID: 8445174

Claim:
A method for improving UV laser ablation performance of a coating comprising incorporating into the coating an oxalyl-containing additive selected from the group consisting of: (a) an oxalyl-containing sensitizer having the formula: Q-O—C(O)—C(O)—O—R 1 wherein Q represents a fused aromatic moiety and R 1 is an alkyl or aryl group; (b) an oxalyl-containing oxetane resin having the formula: wherein R 2 represents a hydrogen atom or a substituted or unsubstituted alkyl group and wherein R 1 represents an alkyl or aryl group; and (c) an oxalyl-containing polyester polyol having the formula: R 3 O—C(O)—C(O)—OR 1 ) n wherein R 3 represents a polyester polyol, wherein R 1 represents a lower alkyl group, and wherein n is an integer equal to or greater than 1.