Global Patent Index - EP 1902840 A2

EP 1902840 A2 20080326 - Planographic printing plate precursor

Title (en)

Planographic printing plate precursor

Title (de)

Flachdruckplattenvorläufer

Title (fr)

Précurseur de plaque d'impression planographique

Publication

EP 1902840 A2 20080326 (EN)

Application

EP 07018369 A 20070919

Priority

JP 2006259359 A 20060925

Abstract (en)

A positive planographic printing plate precursor that can be subjected to direct plate making due to scanning exposure based on a digital signal and is excellent in the reproducibility of a high definition image, the printing durability of a small-area image portion such as a dot or a fine line, and chemical resistance, is provided. The invention provides a planographic printing plate precursor formed by disposing, on a support, a recording layer that includes a lower layer containing a polymer compound having a constituent expressed by formula (I) below and an upper layer that contains a water-insoluble and alkali-soluble resin and an infrared absorber and increases in solubility to an alkaline aqueous solution under exposure, wherein in formula (I), n represents an integer from 0 to 2 and A represents an aryl group.

IPC 8 full level

B41C 1/10 (2006.01)

CPC (source: EP)

B41C 1/1016 (2013.01); B41C 2210/02 (2013.01); B41C 2210/06 (2013.01); B41C 2210/14 (2013.01); B41C 2210/22 (2013.01); B41C 2210/24 (2013.01); B41C 2210/262 (2013.01)

Citation (applicant)

Designated contracting state (EPC)

DE GB

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family (publication)

EP 1902840 A2 20080326; EP 1902840 A3 20100707; EP 1902840 B1 20110706; JP 2008076996 A 20080403

DOCDB simple family (application)

EP 07018369 A 20070919; JP 2006259359 A 20060925