IP Library Granted Patent US 10,151,975
Granted Patent B2
US 10,151,975 · App. 15/037,332 · Granted Dec 11, 2018

Lithographic printing plate precursor

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Quick Facts
Patent No.
US 10,151,975
App. No.
15/037,332
Granted
Dec 11, 2018
Kind
B2
Abstract

A lithographic printing plate precursor includes (i) a support having a hydrophilic surface or which is provided with a hydrophilic layer, and (ii) a coating including a photopolymerisable layer, characterised in that the photopolymerisable layer includes a compound including at least one free radically polymerisable group and at least one moiety having a structure according to Formula (I): wherein X represents O or NR* and R* represents hydrogen, an optionally substituted alkyl, aryl, aralkyl or heteroaryl group; and * denotes the linking positions to the rest of the compound.

Claims (48)

1. A lithographic printing plate precursor comprising:

a support including a hydrophilic surface or a hydrophilic layer; and

a coating including a photopolymerizable layer; wherein

the photopolymerizable layer includes a compound including a free radical polymerizable group and at least one moiety having a structure according to Formula (I):

wherein

X represents O; and

* denotes linking positions to remaining portions of the compound.

2. The lithographic printing plate precursor according to claim 1 , wherein the compound is represented by Formula (II):

wherein

X represents O;

L 1 and L 2 are independently a divalent, trivalent, four-valent, five-valent, or six-valent linking group;

L* represents a divalent linking group;

A 1 and A 2 independently represent an ethylenical unsaturated group or a terminal group;

a represents 1, 2, 3, 4, or 5, respectively, for the divalent, trivalent, four-valent, five-valent, or six-valent linking group L 1 ;

b represents 1, 2, 3, 4, or 5, respectively, for the divalent, trivalent, four-valent, five-valent, or six-valent linking group L 2 ; and

c is an integer ranging from 0 to 150.

3. The lithographic printing plate precursor according to claim 2 , wherein the compound is represented by Formula (V):

wherein

X represents O;

L 1 and L 2 are independently a divalent, trivalent, four-valent, five-valent, or six-valent linking group;

A 1 and A 2 independently represent an ethylenical unsaturated group or a terminal group;

a represents 1, 2, 3, 4, or 5, respectively, for the divalent, trivalent, four-valent, five-valent, or six-valent linking group L 1 ; and

b represents 1, 2, 3, 4, or 5, respectively, for the divalent, trivalent, four-valent, five-valent, or six-valent linking group L 2 .

4. The lithographic printing plate precursor according to claim 3 , wherein the compound is represented by Formula (VI):

wherein

X represents O;

L 1 and L 2 represent a divalent linking group; and

A 1 and A 2 independently represent an ethylenical unsaturated group or a terminal group.

5. The lithographic printing plate precursor according to claim 2 , wherein the ethylenical unsaturated group includes an acrylamide group or a methacrylamide group.

6. The lithographic printing plate precursor according to claim 3 , wherein the ethylenical unsaturated group includes an acrylamide group or a methacrylamide group.

7. The lithographic printing plate precursor according to claim 4 , wherein the ethylenical unsaturated group includes an acrylamide group or a methacrylamide group.

8. The lithographic printing plate precursor according to claim 2 , wherein L 1 and L 2 independently represent an optionally substituted alkylene, cycloalkylene, arylene, or heteroarylene, —CH2-, —O—, —CO—, —CO—O—, —O—CO—, —CO—NH—, —NH—CO—, >N—CO—, —CO—N<, —NH—CO—O—, >N—CO—O—, —O—CO—NH—, —O—CO—N<, —NH—CO—NH—, >N—CO—NH—, —NH—CO—N<, >N—CO—N<, —NH—CS—NH—, >N—CS—NH—, —NH—CS—N<, >N—CS—N<, —CO—NR′—, —NR″—CO—, —SO—, —SO 2 —, —SO 2 —NH—, —SO 2 —N<, —NH—SO 2 —, >N—SO 2 —, —CH═N—, >C═N—, —NH—NH—, >N—NH—, —NH—N<, >N—N<, —N + (CH 3 ) 2 —, —N + (CH 3 )<, >N + (CH 3 )—, >N + <, —S—, —S—S—, —NH—CO—CO—NH—, —NH—CO—CO—N<, >H—CO—CO—NH—, >N—CO—CO—N<,

and/or combinations thereof; and

R′ and R″ each independently represent an optionally substituted alkyl, aryl, aralkyl, or heteroaryl.

9. The lithographic printing plate precursor according to claim 3 , wherein L 1 and L 2 independently represent an optionally substituted alkylene, cycloalkylene, arylene, or heteroarylene, —CH2-, —O —, —CO—, —CO—O—, —O—CO—, —CO—NH—, —NH—CO—, >N—CO—, —CO—N<, —NH—CO—O—, >N—CO—O—, —O—CO—NH—, —O—CO—N<, —NH—CO—NH—, >N—CO—NH—, —NH—CO—N<, >N—CO—N<, —NH—CS—NH—, >N—CS—NH—, —NH—CS—N<, >N—CS—N<, —CO—NR′—, —NR″—CO—, —SO—, —SO 2 —, —SO 2 —NH—, —SO 2 —N<, —NH—SO 2 —, >N—SO 2 —, —CH═N—, >C═N—, —NH—NH—, >N—NH—, —NH—N<, >N—N<, —N + (CH 3 ) 2 —, —N + (CH 3 )<, >N + (CH 3 )—, >N + <, —S—, —S—S—, —NH—CO—CO—NH—, —NH—CO—CO—N<, >H—CO—CO—NH—, >N—CO—CO—N<,

and/or combinations thereof; and

R′ and R″ each independently represent an optionally substituted alkyl, aryl, aralkyl, or heteroaryl.

10. The lithographic printing plate precursor according to claim 4 , wherein L 1 and L 2 independently represent an optionally substituted alkylene, cycloalkylene, arylene, or heteroarylene, —CH2-, —O—, —CO—, —CO—O—, —O—CO—, —CO—NH—, —NH—CO—, >N—CO—, —CO—N<, —NH—CO—O—, >N—CO—O—, —O—CO—NH—, —O—CO—N<, —NH—CO—NH—, >N—CO—NH—, —NH—CO—N<, >N—CO—N<, —NH—CS—NH—, >N—CS—NH—, —NH—CS—N<, >N—CS—N<, —CO—NR′—, —NR″—CO—, —SO—, —SO 2 —, —SO 2 —NH—, —SO 2 —N<, —NH—SO 2 —, >N—SO 2 —, —CH═N—, >C═N—, —NH—NH—, >N—NH—, —NH—N<, >N—N<, —N + (CH 3 ) 2 —, —N + (CH 3 )<, >N + (CH 3 )—, >N + <, —S—, —S—S—, —NH—CO—CO—NH—, —NH—CO—CO—N<, >H—CO—CO—NH—, >N—CO—CO—N<,

and/or combinations thereof; and

R′ and R″ each independently represent an optionally substituted alkyl, aryl, aralkyl, or heteroaryl.

11. A method of making the lithographic printing plate precursor according to claim 1 , the method comprising the steps of:

providing the support and the coating ;

applying the coating to the support; and

drying the lithographic printing plate precursor.

12. A method of making a lithographic printing plate comprising the steps of:

providing the lithographic printing plate precursor according to claim 1 ;

image-wise exposing the lithographic printing plate precursor with a laser emitting IR-light or violet light; and

developing the lithographic printing plate precursor off-press by treating the lithographic printing plate precursor with a developing solution to remove non-exposed areas of the coating from the support.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 26, 2022
From: AGFA NV
To: AGFA OFFSET BV
Reel/Frame 061218/0433 →
CHANGE OF NAME Recorded Dec 6, 2017
From: AGFA GRAPHICS NV
To: AGFA NV
Reel/Frame 045015/0919 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 18, 2016
From: STEENACKERS, MARIN; LOCCUFIER, JOHAN; VERBRUGGHE, SAM
To: AGFA GRAPHICS NV
Reel/Frame 038629/0283 →