Patent ID: 9029066
Filing Date: 2015-05-12
Classification: B41C,C08F,G03F

Abstract:
1. A positive-working lithographic printing plate precursor which comprises on a support having a hydrophilic surface or which is provided with a hydrophilic layer, a heat and/or light-sensitive coating including a first layer comprising an infrared absorbing agent and a binder including a monomeric unit including a salicylic acid group and a monomeric unit including a sulfonamide group, wherein the monomeric unit including a salicylic acid group is represented by: wherein A represents a structural moiety comprising at least one polymerizable ethylenically unsaturated group; wherein the structural moiety comprising at least one polymerizable ethylenically unsaturated group is represented by wherein R R L represents a divalent linking group; n represents 0 or 1; m represents an integer from 0 to 3; and R represents a halogen, an optionally substituted alkyl, alkenyl, alkynyl, aralkyl, alkaryl, aryl, heteroaryl, ether, hydroxyl, ester, amine, amide, thioether, sulfoxide, sulfone, thiol, nitro, nitrile, carboxylic acid or sulfonamide group, or two R-groups represent the necessary atoms to form a five to eight membered ring.