Patent ID: 8642243
Filing Date: 2014-02-04
Classification: C09D,G03F

Abstract:
1. A lithographic printing plate precursor comprising a support and an image-recording layer comprising a polymerizable composition comprising: (A) a polymer compound comprising (a1) a repeating unit having a structure represented by the following formula (a1-1) in a side chain thereof; and (B) a polymerization initiator, wherein R 11 and R 12 each independently represents a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group, a sulfo group, an alkylsulfonyl group, a arylsulfonyl group, an acyl group, an aryloxycarbonyl group, an alkoxycarbonyl group or a carbamoyl group, R 13 , R 14 and R 15 each independently represents a hydrogen atom, an alkyl group or an aryl group, L 1 represents a divalent connecting group, Y 1 represents a single bond or a divalent connecting group selected from the group consisting of —CO—, —O—, —HN—, a divalent aliphatic group, a divalent aromatic group and a combination of these groups, and * indicates a site connecting to a main chain of the polymer compound; wherein the polymer compound (A) further comprises (a2) a repeating unit having a zwitter ion structure represented by the following formula (a2-1) or (a2-2) in a side chain thereof: wherein, in the formula (a2-1), R 21 and R 22 each independently represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group, or R 21 and R 22 may be combined with each other to from a ring structure, L 21 represents a divalent connecting group, A − represents a structure having an anion, Y 2 represents a single bond or a divalent connecting group selected from the group consisting of —CO—, —O—, —HN—, a divalent aliphatic group, a divalent aromatic group and a combination of these groups, and * indicates a site connecting to a main chain of the polymer compound; in the formula (a2-2), L 22 represents a divalent connecting group, E + represents a structure having a cation, Y 2 represents a single bond or a divalent connecting group selected from the group consisting of —CO—, —O—, —HN—, a divalent aliphatic group, a divalent aromatic group and a combination of these groups, and * indicates a site connecting to a main chain of the polymer compound.