IR-sensitive composition and use thereof for the preparation of printing plate precursors

摘要

The present invention relates to IR-sensitive compositions containing an initiator system comprising:(a) at least one compound capable of absorbing IR light(b) at least one compound capable of producing radicals and(c) at least one polycarboxylic acid comprising an aromatic moiety substituted with a heteroatom selected from N, O and S and also at least two carboxyl groups wherein at least one of the carboxyl groups is bonded to the heteroatom via a methylene group.These compositions are inter alia extraordinarily suitable for the manufacture of printing plates.