Patent ID: 6207348
Filing Date: 2001-03-27
Classification: B41C,Y10S

Abstract:
A lithographic printing plate precursor element which comprises:a) a support web;b) a thermal insulating layer; andc) a coextensive ink repellent layer comprising a crosslinked polymeric matrix comprising a colloid of an oxide or a hydroxide of a metal selected from the group consisting of beryllium, magnesium, aluminum, silicon, gadolinium, germanium, arsenic, indium, tin, antimony, tellurium, lead, bismuth, a transition metal and combinations thereof; wherein a photothermal conversion material is present in the ink repellent layer, in a stratum located between the thermal insulating layer and the ink repellent layer, or in both the ink repellent layer and the stratum, wherein the ink repellant layer contains less than 5% hydrocarbon groups by weight.