Global Patent Index - EP 2641738 A2

EP 2641738 A2 20130925 - Planographic printing plate precursor and method for producing a planographic printing plate

Title (en)

Planographic printing plate precursor and method for producing a planographic printing plate

Title (de)

Flachdruckplattenvorläufer und Verfahren zur Herstellung einer Flachdruckplatte

Title (fr)

Précurseur de plaque d'impression planographique et procédé de production d'un plaque d'impression planographique

Publication

EP 2641738 A2 20130925 (EN)

Application

EP 13155924 A 20130220

Priority

JP 2012068241 A 20120323

Abstract (en)

A planographic printing plate precursor includes a substrate having a hydrophilic surface; and two or more recording layers provided on the substrate and each independently containing an alkali-soluble resin, in which at least one of the two or more recording layers is a positive-working recording layer including an infrared absorbing agent, and in which, of the two or more recording layers, a recording layer provided in closest proximity to the substrate includes a resin (A) having an onium salt structure and a (meth)acrylic resin (B) having at least one repeating unit selected from a structural unit represented by the following Formula (I) or a structural unit represented by the following Formula (II): wherein, R 1 represents a hydrogen atom or an alkyl group; Z represents -O- or -N(R 2 )- wherein R 2 represents a hydrogen atom, an alkyl group, or the like; Ar 1 and Ar 2 each independently represent an aromatic group, and at least one of Ar 1 or Ar 2 is a heteroaromatic group; and a and b each independently represent 0 or 1.

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)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2641738 A2 20130925; EP 2641738 A3 20141029; EP 2641738 B1 20160120; JP 2013200413 A 20131003; JP 5490168 B2 20140514

DOCDB simple family (application)

EP 13155924 A 20130220; JP 2012068241 A 20120323