Patent ID: 6017677
Filing Date: 2000-01-25
Classification: B41C,G03F

Abstract:
A planographic printing plate comprising a substrate having thereon a recording layer containing a photo acid-generating agent and a polymer compound carrying on a side chain a functional group which generates sulfonic acid in the presence of an acid selected from a group consisting of the following formulae (1) and (2):--L.sup.1 --SO.sub.2 --O--R.sup.1 ( 1)wherein L.sup.1 represents a first organic group comprised of a polyvalent non-metal atom which connects a first unit represented by formula (1) to a polymer backbone, and R.sup.1 represents a substituted or unsubstituted aryl group, a substituted or unsubstituted alkyl group or cyclic imide group; and--L.sup.2 --SO.sub.2 --SO.sub.2 --R.sup.2 ( 2)wherein L.sup.2 represents a second organic group comprised of a polyvalent non-metal atom which connects a second unit represented by formula (2) to a polymer backbone, and R.sup.2 represents a substituted or unsubstituted aryl group or a substituted or unsubstituted alkyl group.