Patent ID: 6475700
Filing Date: 2002-11-05
Classification: C08G,G03F

Abstract:
A lithographic printing plate precursor comprising an aluminum support having thereon a photopolymerizable photosensitive layer which contains (1) an alkali-soluble urethane binder having at least one ethylenically unsaturated polymerizable group on the side chain thereof wherein said urethane binder is a reaction product between (A) an ethylenically unsaturated group-containing diisocyanate compound obtained by allowing (A1) a compound having three or more isocyanate groups per molecule and (A2) an ethylenically unsaturated compound having an active hydrogen atom to react and (B) a diol compound having an alkali-soluble group, (2) an addition polymerizable compound having an ethylenically unsaturated double bond, and (3) a photopolymerization initiator.