Patent ID: 7649031

Claim:
A printing plate comprising: a substrate and an infrared or near-infrared radiation-absorptive layer, wherein said radiation-absorptive layer comprises at least one modified pigment product comprising a pigment having attached at least one aromatic or alkyl group X, wherein X is substituted with at least one group comprising the formula: -[polymer]R, wherein “polymer” represents repeating monomer groups or multiple monomer groups or both, optionally having at least one —X′ group, wherein X′ comprises at least one aromatic group or at least one alkyl group, and each X and X′ can be the same or different, R represents hydrogen, a bond, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aromatic group, and the total amount of monomer groups of “polymer” is not greater than about 500 monomer repeating units, and when R represents a bond, R optionally bonds to said pigment.