Patent ID: 6884568
Filing Date: 2005-04-26
Classification: B41C,B41M,Y10S

Abstract:
1. An infrared-sensitive composition comprising: (i) an initiator system comprising: (a) at least one compound capable of absorbing infrared radiation selected from the group consisting of triarylamine dyes, thiazolium dyes, indolium dyes, oxazolium dyes, cyanine dyes, polyaniline dyes, polypyrrole dyes, polythiophene dyes, and phthalocyanine pigments, (b) at least one compound capable of producing free radicals, the compound selected from polyhaloalkyl-substituted compounds, and (c) at least one carboxylic acid represented by formula (I): in which: Y is selected from the group consisting of O, S and NR R R R n is 0, 1, 2 or 3; (ii) at least one component selected from unsaturated free radical-polymerizable monomers, unsaturated oligomers which are free radical-polymerizable, polymers containing free radical-polymerizable carbon-carbon double bonds in one or both of the backbone and a side chain, and mixtures thereof; (iii) at least one polymeric binder; and (iv) a heterocyclic mercapto compound comprising an aromatic 5-membered heterocyclic ring with a thiol group substituted thereon, the ring comprising a nitrogen atom and at least one heteroatom selected from the group consisting of nitrogen, oxygen and sulfur, in which the heteroatom is separated in the ring from the nitrogen atom by one carbon atom, and in which the thiol group is bonded to the carbon atom; in which: in which ox