Patent Number: 6,309,792

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

Abstract: 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.

Inventors: Hauck; Gerhard (Badenhausen, DE), Savariar-Hauck; Celin (Badenhausen, DE), Timpe; Hans-Joachim (Osterode/Harz, DE), West; Paul R. (Fort Collins, CO), Munnelly; Heidi M. (Windsor, CO)

Assignee: Kodak Polychrome Graphics LLC

International Classification: B41C 1/10 (20060101); B41M 5/36 (20060101); G03C 001/76 ()

Expiration Date: 10/30/2018