Heat-sensitive composition and planographic printing plate
AssigneeFuji Photo Film Co., Ltd.
InventorsKazuto Shimada, Tadahiro Sorori, Kunihiko Kodama
Life of this patent
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Abstract
A heat-sensitive composition comprising a compound of a specific general formula which generates an acid or radical when heated, and a compound whose physical and chemical properties are irreversibly changed by an acid or radical.
Claims36
A heat-sensitive composition comprising (I) a compound which generates an acid or a radical when heated and which is represented by the following general formula (A), general formula (B), general formula (C), general formula (D) or general formula (E), and further comprising (II) a compound whose physical and chemical properties are changed irreversibly by an acid or radical
- aX—COO−aM+ General formula (A)
- dR—COO−dM+ General formula (D)
- eX−eM+ General formula (E)
- wherein, in general formula (A), aM+ represents a monovalent cation selected from the group consisting of sulfonium, iodonium, diazonium and azinium;
- and aX represents one of the groups shown below or a halogen atom;
- and in the above formulas, R1 and R2 may be the same or different and represent a monovalent non-metal atom,
- in the general formula (B), bY has the same definition as for aX in the general formula (A) or represents —OH, —CN, —NO2, —Si(R5)(R6)(R7);
- R3 to R7 may be the same or different and represent a monovalent non-metal atom;
- and bM+ represents a monovalent cation selected from the group consisting of sulfonium, iodonium, diazonium and azinium;
- in the general formula (C), R8 represents a monovalent non-metal atom;
- Ar1 and Ar2 may be the same or different and represent an aryl group;
- and cM+ represents a monovalent cation selected from the group consisting of sulfonium, iodonium, diazonium and azinium;
- in the general formula (D), dR represents an alkyl group or aryl group;
- and dM+ represents a counter cation selected from the group consisting of sulfonium, iodonium, diazonium and azinium,
- in the general formula (E), eX− is an anion of a compound having a structure of the following general formula (F);
- wherein in general formula (F), FY represents a single bond, —CO— or —SO2—;
- Ra and Rb each independently represents a linear, branched or cyclic alkyl group, aryl group, aralkyl group or camphor group;
- Ra and Rb may be connected via an alkylene group, arylene group or aralkyl group to form a ring;
- when FY is a —CO— group, Rb may be a hydroxyl group or an alkoxy group;
- and
- eM+ represents a counter cation selected from the group consisting of sulfonium, iodonium, diazonium and azinium.
A heat mode-applicable negative planographic printing plate comprising a substrate which has disposed thereon a photosensitive layer comprising (I) an acid or radical polymerization initiator represented by at least one of the following general formula (A), general formula (B), general formula (C), general formula (D) and general formula (E);
- (II-a) a radical-polymerizable compound having an unsaturated bond (III) a light-heat converting agent, and (IV) a binder polymer;
- aX—COO−aM+ General formula (A)
- wherein, in general formula (A), aM+ represents a monovalent cation selected from the group consisting of sulfonium, iodonium, diazonium and azinium;
- aX represents one of the groups shown below or a halogen atom;
- and in the above formulas, R1 and R2 may be the same or different and represent a monovalent non-metal atom,
- in the general formula (B), bY has the same definition as for aX in the general formula (A) or represents —OH, —CN, —NO2, —Si(R5)(R6)(R7);
- R3 to R7 may be the same or different and represent a monovalent non-metal atom;
- and bM+ represents a monovalent cation, selected from the group consisting of sulfonium, iodonium, diazonium and azinium;
- in the general formula (C), R8 represents a monovalent non-metal atom;
- Ar1 and Ar2 may be the same or different and represent an aryl group;
- and cM+ represents a monovalent cation, selected from the group consisting of sulfonium, iodonium, diazonium and azinium;
- in the general formula (D), dR represents an alkyl group or aryl group;
- and dM+ represents a counter cation selected from the group consisting of sulfonium, iodonium, diazonium and azinium,
- in the general formula (E), eX− is an anion of a compound having a structure of the following general formula (F);
- wherein in general formula (F), FY represents a single bond, —CO— or —SO2—;
- Ra and Rb each independently represents a linear, branched or cyclic alkyl group, aryl group, aralkyl group or camphor group;
- Ra and Rb may be connected via an alkylene group, arylene group or aralkyl group to form a ring;
- when FY is a —CO— group, Rb may be a hydroxyl group or alkoxy group;
- and
- eM+ represents a counter cation selected from the group consisting of sulfonium, iodonium, diazonium and azinium.
A heat-sensitive composition comprising (I) a compound which generates an acid or a radical when heated and which is represented by the following formula (E), and further comprising (II) a compound whose physical and chemical properties are changed irreversibly by an acid or a radical;
- eX−eM+ General formula (E)
- wherein in said formula (E), eX− is an anion of a compound having a structure of the following formula (F);
- wherein in the above formula, FY represents —CO— or —SO2—;
- Ra and Rb each independently represents a linear, branched or cyclic alkyl group, aryl group, aralkyl group or camphor group;
- Ra and Rb may be connected via an alkylene group, arylene group or aralkyl group to form a ring;
- when FY is a —CO— group, Rb may be a hydroxyl group or an alkoxy group;
- and
- eM+ represents a counter cation selected from the group consisting of sulfonium, iodonium, diazonium, ammonium and azinium.
A heat mode-applicable negative planographic printing plate comprising a substrate, which has disposed thereon a photosensitive layer comprising (I) an acid or a radical polymerization initiator represented by formula (E), (II-a) a radical polymerizable compound having an unsaturated bond;
- (III) a light-heat converting agent;
- and (IV) a binder polymer;
- eX−eM+ General formula (E)
- wherein in said formula (E), eX− is an anion of a compound having a structure of the following general formula (F);
- wherein in the above formula, FY represents —CO— or —SO2—;
- Ra and Rb each independently represents a linear, branched or cyclic alkyl group, aryl group, aralkyl group or camphor group;
- Ra and Rb may be connected via an alkylene group, arylene group or aralkyl group to form a ring;
- when FY is a —CO— group, Rb may be a hydroxyl group or an alkoxy group;
- and
- eM+ represents a counter cation selected from the group consisting of sulfonium, iodonium, diazonium, ammonium and azinium.
A heat-sensitive composition comprising (I) a compound which generates an acid or a radical when heated and which is represented by the following formula (I-a), and further comprising (II) a compound whose physical and chemical properties are changed irreversibly by an acid or a radical;
- wherein, R9 represents a phenyl group or an alkyl group having 1 to 4 carbon atoms;
- and R10, R11 and R12 each independently represents a hydrogen atom, a halogen atom, a methyl group, or a butyl group.
A heat mode-applicable negative planographic printing plate comprising a substrate, which has disposed thereon a photosensitive layer comprising (I) an acid or a radical polymerization initiator represented by the following formula (I-a);
- (II-a) a radical-polymerizable compound having an unsaturated bond;
- (III) a light-heat converting agent;
- and (IV) a binder polymer;
- wherein, R9 represents a phenyl group or an alkyl group having 1 to 4 carbon atoms;
- and R10, R11 and R12 each independently represents a hydrogen atom, a halogen atom, a methyl group, or a butyl group.
Dependencies are inferred from the claim text.