Photosensitive resin composition, planographic printing plate precursor, method for producing planographic printing plate, and polymer compound

Patent metadata

Field	Value
Publication number	US-10363733-B2
Application number	US-201715448570-A
Country	US
Kind code	B2
Filing date	Mar 2, 2017
Priority date	Sep 26, 2014
Publication date	Jul 30, 2019
Grant date	Jul 30, 2019

Abstract

Provided are a photosensitive resin composition which enables production of a lithographic printing plate precursor having a non-image portion which has good solubility in an alkali aqueous solution and which enables production of a lithographic printing plate having excellent chemical resistance and excellent printing durability, a lithographic printing plate precursor obtained by using the photosensitive resin composition, a method for producing a lithographic printing plate, and a new polymer compound. The photosensitive resin composition of the present invention contains: a polymer compound which has an amine bond or a quaternary ammonium salt bond, and at least one bond selected from the group consisting of a urea bond, a urethane bond, and a carbonate bond in the main chain and has a sulfonamide group or a phenolic hydroxyl group in the main chain and/or the side chain; and an infrared absorbing material.

First claim

What is claimed is:

1. A positive type lithographic printing plate precursor comprising:
a recording layer which contains a photosensitive resin composition on a support having a hydrophilic surface,
wherein the photosensitive resin composition comprises:
a polymer compound which has an amine bond or a quaternary ammonium salt bond in the main chain, and at least one bond selected from the group consisting of a urea bond, a urethane bond, and a carbonate bond in the main chain and has a sulfonamide group or a phenolic hydroxyl group in the main chain and/or the side chain; and
an infrared absorbing material.

2. The positive type lithographic printing plate precursor according to claim 1 , which is formed to include the recording layer having an underlayer and an upper layer in this order, on the support having a hydrophilic surface,
wherein at least one of the underlayer or the upper layer contains the photosensitive resin composition.

3. The positive type lithographic printing plate precursor according to claim 1 , comprising:
an undercoat between the support and the recording layer.

4. A method for producing a lithographic printing plate, comprising in the following order:
an exposure step of image-wise exposing the positive type lithographic printing plate precursor according to claim 1 ; and
a development step of developing using an alkali aqueous solution having a pH of 8.5 to 13.5.

5. The positive type lithographic printing plate precursor according to claim 1 , wherein the polymer compound has at least one constitutional unit represented by the following Formula 1 or 2 in the main chain,

in Formulae 1 and 2, R 11 represents a hydrogen atom or a monovalent organic group, L 11 to L 13 each independently represent a divalent linking group, V 11 and V 12 each independently represent —N(R 1A )— or —O—, R 1A represents a hydrogen atom or a monovalent organic group, R 21 and R 22 each independently represent a hydrogen atom or a monovalent organic group, L 21 to L 23 each independently represent a divalent linking group, V 21 and V 22 each independently represent —N(R 2A )— or —O—, R 2A represents a hydrogen atom or a monovalent organic group, X represents an inorganic or organic conjugate base, and the “*” portions each independently represent a binding position with another structure.

6. The positive type lithographic printing plate precursor according to claim 5 , wherein V 11 and V 12 represent —N(R 1A )—, and
V 21 and V 22 represent —N(R 2A )—.

7. The positive type lithographic printing plate precursor according to claim 5 , wherein at least one of L 11 , L 12 , or L 13 represents a linking group having a sulfonamide group or a phenolic hydroxyl group, and
at least one of L 21 , L 22 , or L 23 represents a linking group having a sulfonamide group or a phenolic hydroxyl group.

8. The positive type lithographic printing plate precursor according to claim 5 , wherein L 11 represents a linking group having a sulfonamide group or a phenolic hydroxyl group, and
L 21 represents a linking group having a sulfonamide group or a phenolic hydroxyl group.

9. The positive type lithographic printing plate precursor according to claim 5 , wherein L 11 and/or L 21 is represented by the following Formula A-1,

in Formula A-1, Y A11 and Y A12 each independently represent a single bond or a divalent linking group, Z A11 's each independently represent a sulfonamide group or a hydroxy group, m1 represents an integer of 1 or greater, n1 represents an integer of 1 to 4, and the “*” portions each independently represent a binding position with another structure.

10. The positive type lithographic printing plate precursor according to claim 5 , wherein L 11 and/or L 21 is represented by the following Formula A-2,

in Formula A-2, Y A21 and Y A22 each independently represent a divalent linking group, W A21 represents an arylene group or a combination of an arylene group and a divalent linking group, k2 represents an integer of 1 or greater, and the “*” portions each independently represent a binding position with another structure.

11. The positive type lithographic printing plate precursor according to claim 5 , wherein L 11 and/or L 21 is represented by the following Formula A-3,

in Formula A-3, R A31 represents a hydrogen atom or a monovalent organic group, Y A31 , Y A32 , and Y A33 each independently represent a divalent linking group, W A31 represents a carbon atom or a nitrogen atom, Z A31 's each independently represent a sulfonamide group or a hydroxy group, i3 represents an integer of 1 to 5, j3 represents 1 or 0, and the “*” portions each independently represent a binding position with another structure.

Assignees

• Fujifilm Corp

Inventors

• Nozaki Atsuyasu
• Sato Takashi
• MUKAIYAMA Rena

Classifications

• G03F7/095

  having more than one photosensitive layer (G03F7/075 takes precedence) · CPC title

• G03F7/11

  having cover layers or intermediate layers, e.g. subbing layers {(G03F7/091 - G03F7/093, B41N3/03 take precedence)} · CPC title

• G03F7/039

  Macromolecular compounds which are photodegradable, e.g. positive electron resists (G03F7/075 takes precedence; macromolecular quinonediazides G03F7/023) · CPC title

• B41N1/14

  Lithographic printing foils {(B41N1/003, B41N3/03 take precedence; compositions of the image-forming layer B41C1/10)} · CPC title

• B41C1/1008 Primary

  by removal or destruction of lithographic material on the lithographic support, e.g. by laser or spark ablation; by the use of materials rendered soluble or insoluble by heat exposure, e.g. by heat produced from a light to heat transforming system; by on-the-press exposure or on-the-press development, e.g. by the fountain of photolithographic materials · CPC title