Patent ID: 8895224
Filing Date: 2014-11-25
Classification: C08F,G03F

Abstract:
1. A lithographic printing plate precursor comprising: a substrate; a photosensitive layer provided on the substrate; and an extra layer optionally provided between the substrate and the photosensitive layer; wherein the photosensitive layer or the extra layer adjacent to the substrate contains (A) a copolymer; and wherein the copolymer (A) comprises: (a1) a repeating unit having a structure represented by formula (a1-1) below in a side chain, and (a2) a repeating unit having at least one of the structure represented by formulae (a2-1) and (a2-2) below in a side chain; in formula (a1-1), L in formula (a2-1) or (a2-2), M and wherein the copolymer (A) further comprises (a3) a repeating unit having a hydrophilic group in a side chain, the hydrophilic group being a group having a zwitterionic structure represented by formula (a3-1) or formula (a3-2) below: in formula (a3-1), R in formula (a3-2) above, L