Photosensitive composition, planographic printing plate precursor, polyurethane, and method for producing polyurethane
AssigneeFUJIFILM Corporation
InventorsYoshinori TAGUCHI, Takashi ARIDOMI
Life of this patent
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Abstract
A photosensitive composition includes (A) a polyurethane obtained by reacting a diol component including a compound represented by the following Formula (I) with a polyisocyanate component; and (B) a photosensitive component. In Formula (I), A represents a single bond, or a divalent linking group including an atom selected from the group consisting of a carbon atom, a hydrogen atom, and an oxygen atoms; B represents a monovalent organic group; each of R1 to R5 independently represents a hydrogen atom or an alkyl group; m represents an integer from 0 to 3; n represents an integer from 0 to 3; and m+n is not zero.
Claims10
A photosensitive composition comprising at least one polymer compound selected from the group consisting of a polyurethane obtained by reacting a diol component including a compound represented by the following Formula (II) with a polyisocyanate component and a polyester obtained by reacting a diol component including a compound represented by the following Formula (II) with a polycarboxylic acid component:
- wherein, in Formula (II), B represents a monovalent organic group;
- and each of R6 and R7 independently represents a hydrogen atom or an alkyl group.
A method for producing a polyurethane, the method comprising:
- a process of obtaining (a) a diol compound by reacting at least one compound represented by the following Formula (1) with a compound represented by the following Formula (2);
- and
- a process of reacting the obtained (a) diol compound with at least one (c) isocyanate component:
- wherein, in Formula (1), A2 represents an atomic group that forms a 4-membered to 7-membered cyclic structure together with an oxygen atom and adjacent carbon atoms;
- and p represents an integer of 0 or 1;
- and
- wherein, in Formula (2), B represents a monovalent organic group.
A polyurethane comprising a partial structure represented by the following Formula (I-1):
- wherein, in Formula (I-1), A1 represents a single bond, or a divalent linking group including an atom selected from the group consisting of a carbon atom, a hydrogen atom and an oxygen atom;
- B represents a monovalent organic group;
- each of R1, R2, R3, R4 and R5 independently represents a hydrogen atom or an alkyl group;
- m represents an integer from 0 to 3;
- n represents an integer from 0 to 3;
- m+n is not 0;
- and when m and n represent an integer of 2 or greater, R1's, R2's, R3's and R4's that exist in plural numbers may be the same as or different from each other.
Dependencies are inferred from the claim text.