Light-sensitive composition
AssigneeFuji Photo Film Co., Ltd.
InventorsKeitaro Aoshima, Hideo Miyake
Life of this patent
Estimating the term…
Abstract
The present invention provides a light-sensitive composition comprising specific photo-crosslinkable polymer compounds. The light-sensitive composition of the present invention exhibits excellent wear resistance when it is photo-hardened, and hence it can give lithographic printing plates capable of producing a lot of printed matter in good quality when it is used for presensitized plates for use in making lithographic printing plates.
Claims20
A light-sensitive composition comprising a photo-crosslinkable polymer compound wherein the photo-crosslinkable polymer compound comprises structural units represented by the following formula (I) in an amount of not less than 1% by weight on the basis of the total weight of the photo-crosslinkable polymer compound;
- wherein R.sup.1 represents a hydrogen atom or methyl group;
- X represents a single bond, an ester bond or an amide bond;
- R.sup.2 represents a single bond or a divalent bridging group composed of two or more kinds of atoms selected from the group consisting of C, H, N, O and S;
- and Y represents a polymer group having a weight average molecular weight of not less than 500 and comprising structural units represented by the following formula (II) in an amount of not less than 5% by weight on the basis of the total weight of the group Y;
- where R.sup.3 represents a hydrogen atom or methyl group;
- R.sup.4 represents a single bond or a divalent bridging group composed of two or more kinds of atoms selected from the group consisting of C, H, N, O and S;
- and Z represents a functional group represented by the following formula (III);
- where R.sup.5 and R.sup.6 independently represent a hydrogen atom, a halogen atom or an alkyl group having 1 to 12 carbon atoms, or R.sup.5 and R.sup.6 may combine to form a 5- or 6-membered cyclic ring.
A light-sensitive composition comprising a photo-crosslinkable polymer compound wherein the photo-crosslinkable polymer compound comprises structural units represented by the following formula (VII);
- wherein R.sup.1 represents it hydrogen atom or methyl group;
- R.sup.2 represents a single bond or a divalent bridging group composed of two or more kinds of atoms selected from the group consisting of C, H, N, O and S;
- and Z represents a functional group of the following formula (III);
- wherein R.sup.1 and R.sup.6 independently represent a hydrogen atom, a halogen atom or an alkyl group having 1 to 12 carbon atoms, or R.sup.5 and R.sup.6 may combine to form a 5- or 6-membered ring;
- and structural units represented by the following formula (VIII):
- wherein R.sup.19 represents a hydrogen atom or methyl group;
- X' represents a single bond, an ester bond or an amide bond;
- R.sup.20 represents a single bond or a divalent bridging group composed of two or more kinds of atoms selected from the group consisting of C, H, N, O and S;
- Y' represents a polymer group having a weight average molecular weight of not less than 500 and comprising structural units represented by the following formula (IX) in an amount of not less than 5% by weight on the basis of the total weight of the group Y';
- where R.sup.21 represents a hydrogen atom or methyl group;
- R.sup.22 represents a single bond or a divalent bridging group composed of two or more kinds of atoms selected from the group consisting of C, H, N, O and S;
- and Z' represents --COOH, --OPO(OH)(OR.sup.15), --PO(OH)(OR.sup.16), --SO.sub.3 H or --CONHSO.sub.2 R.sup.17, where R.sup.15 and R.sup.16 independently represent a hydrogen atom or an optionally substituted alkyl group having 1 to 15 carbon atoms;
- and R.sup.17 represents an optionally substituted hydrocarbon group having 1 to 15 carbon atoms.
Dependencies are inferred from the claim text.