US4740455A
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US
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Heat developable light-sensitive material containing polymethine
Assignee: Fujifilm Holdings Corp
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Filing: 1986-08-06
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Granted: 1988-04-26
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Expires: 2006-08-06
Abstract
Abstract A novel heat developable light-sensitive material is provided comprising a silver halide spectrally sensitized by a polymethine containing at least one basic nucleus wherein the dye contains, as a group for substituting nitrogen atoms in said basic nucleus, at least one of the groups represented by general formulae (A) and (B): ##STR1## --(CH.sub.2 --.sub.2 NHSO.sub.2 R wherein m represents an integer of 1 or 2; Y represents an atomic group necessary for the formation of a cyclic imide group; and R represents a C 1-4 alkyl group. In a preferred embodiment, the atomic group represented by Y is selected from the group consisting of a succinic acid imido group, a phthalic acid imido group, an orthobenzosulfimido group, and a maleimido group. The atomic group may be optionally substituted by a halogen atom, a nitro group, a carboxyl group, an acylamino group such as an acetylamino group, or an alkoxycarbonyl amino group such as an ethoxycarbonyl group.
Inventors
- 👤 Seiiti Kubodera
- 👤 Masaki Okazaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:56
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/12; G03C1/494; G03C1/498; G03C1/49836; G03C1/49845; G03C1/49854
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
81 words
A heat developable light-sensitive material, comprising a silver halide spectrally sensitized by a polymethine dye containing at least one basic nucleus, wherein said dye contains, as a group for substituting nitrogen atoms in said basic nucleus, at least one of the groups represented by general formulae (A) and (B): ##STR23## wherein m represents an integer of 1 or 2; Y represents an atomic group necessary for the formation of a cyclic imido group; and R represents a C 1-4 alkyl group.
Claim 2
Dependent Claim
81 words
A heat developable light-sensitive material, comprising a silver halide spectrally sensitized by a polymethine dye containing at least one basic nucleus, wherein said dye contains, as a group for substituting nitrogen atoms in said basic nucleus, at least one of the groups represented by general formulae (A) and (B): ##STR23## wherein m represents an integer of 1 or 2; Y represents an atomic group necessary for the formation of a cyclic imido group; and R represents a C 1-4 alkyl group.
Claim 3
Dependent Claim
67 words
A heat developable light-sensitive material as claimed in claim 1, wherein said atomic group represented by Y is selected from the group consisting of a succinic acid imido group, a phthalic acid imido group, an orthobenzosulfimido group, and a maleimido group wherein said atomic group may be optionally substituted by a halogen atom, a nitro group, a carboxyl group, an acylamino group or an alkoxycarbonyl amino group.
Claim 4
Dependent Claim
25 words
A heat developable light-sensitive material as claimed in claim 1, wherein said polymethine dye is used in combination for supersensitization of said silver halide grains.
Claim 5
Dependent Claim
32 words
A heat developable light-sensitive material as claimed in claim 1, wherein said dye is present in an amount from about 10 -8 to about 10 -2 mol per mol of silver halide.
Claim 6
Dependent Claim
27 words
A heat developable light-sensitive material as claimed in claim 1, wherein said silver halide grains have an average grain diameter from about 0.001 to about 10 m.
Claim 7
Dependent Claim
36 words
A heat developable light-sensitive material as claimed in claim 1, wherein said silver halide is coated in an amount from about 1 mg to about 10 g/m 2 calculated in terms of the amount of silver.
Claim 8
Dependent Claim
19 words
A heat developable light-sensitive material as claimed in claim 1, wherein said material further comprises an organic metal salt.
Claim 9
Dependent Claim
20 words
A heat developable light-sensitive material as claimed in claim 7, wherein said organic metal salt is an organic silver salt.
Claim 10
Dependent Claim
45 words
A heat developable light-sensitive material as claimed in claim 1, wherein said material further comprises a base and/or base precursor, a dye providing substance, an image forming substance, a reducing substance, an image formation accelerator, a development stopper, an anti-fogging agent, and/or an image toner.
Claim 11
Dependent Claim
140 words
A heat developable light-sensitive material as claimed in claim 1, wherein said dye is a dye represented by the following general formula (I): ##STR24## wherein Z 1 and Z 2 , which may be the same or different each represents a non-metallic atomic group necessary for the formation of a 5- or 6-membered heterocyclic ring; R 1 and R 2 , which may be the same or different, each represents a substituted or unsubstituted alkyl group, the groups represented by (A) and (B) as in claim 1 being contained in either R 1 or R 2 ; L 1 , L 2 and L 3 each represents a substituted or unsubstituted methine group; p and q each represents 0 or 1; m' represents 0, 1, 2, or 3; X 1 .sup.⊖ represents an anion; and k represents 0 or 1.
Claim 12
Dependent Claim
136 words
A heat developable light-sensitive material as claimed in claim 1, wherein said dye is a dye represented by the following general formula (II): ##STR25## wherein Z 3 represents a non-metallic atomic group necessary for the formation of a 5- or 6-membered heterocyclic ring; R 3 represents a substituted or unsubstituted alkyl group; L 4 and L 5 each represents a substituted or unsubstituted methine group; Z 4 represents a non-metallic atomic group necessary for the formation of a 5- or 6-membered heterocyclic ring; R 4 represents a hydrogen atom or a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a heterocyclic group, the groups represented by (A) and (B) as in claim 1 being contained in R 3 ; r represents 0 or 1; and n' represents 0, 1, 2, or 3.
Claim 13
Dependent Claim
188 words
A heat developable light-sensitive material as claimed in claim 1, wherein said dye is a dye represented by the following general formula (II): ##STR26## wherein Z 5 and Z 6 , which may be the same or different, each represents a non-metallic atomic group necessary for the formation of a 5- or 6-membered heterocyclic ring; R 5 and R 7 , which may be the same or different, each represents a substituted or unsubstituted alkyl group, R 6 represents a hydrogen atom or a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a heterocyclic group, L 6 , L 7 , L 8 , L 9 and L 10 represents a substituted or unsubstituted methine group; W 1 represents an atomic group necessary for the formation of a 5- or 6-membered heterocyclic ring, the groups represented by (A) and (B) as in claim 1 being contained in either R 5 or R 7 ; h and i each represents 0, 1, 2, or 3; s and t each represents 0 or 1; X 2 .sup.⊖ represents an anion; and j represents 0 or 1.
Claim 14
Dependent Claim
174 words
A heat developable light-sensitive material as claimed in claim 1, wherein the dye is a dye represented by the following general formula (IV): ##STR27## wherein Z 7 represents a non-metallic atomic group necessary for the formation of a 5- or 6-membered heterocyclic ring; Z 8 represents a non-metallic atomic group necessary for the formation of a 5- or 6-membered heterocyclic ring; W 2 represents an atomic group necessary for the formation of a 5- or 6-membered heterocyclic ring, R 8 represents a substituted or unsubstituted alkyl group, R 9 and R 10 , which may be the same or different, each represents a hydrogen atom or a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a heterocyclic group, L 10 , L 11 , L 12 and L 13 each represents a substituted or unsubstituted methine group, the groups represents by (A) and (B) as in claim 1 being contained in R 8 ; v and w each represents 0, 1, 2, or 3; and u represents 0 or 1.
Claim 15
Dependent Claim
162 words
A heat developable light-sensitive material as claimed in claim 1, wherein said dye is a dye represented by the following general formula (V): ##STR28## wherein Z 9 represents a non-metallic atomic group necessary for the formation of a 5- or 6-membered heterocyclic ring; R 11 represents a substituted or unsubstituted alkyl group, L 14 , L 15 , L 16 and L 17 each represents a substituted or unsubstituted methine group; r' represents 0 or 1; X 2 .sup.⊖ represents an anion; j' represents 0 or 1; p' represents 0, 1 or 2; and G 1 and G 2 , which may be the same or different, each represents a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group, or G 1 and G 2 together form a ring derived from a cyclic secondary amine, with the proviso that the groups represented by (A) and (B) as in claim 1 are contained in R 11 .
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-04-26 | 1991-10-26 | 1992-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-26 | 1995-10-26 | 1996-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-26 | 1999-10-26 | 2000-04-26 | $7700.00 | Window Closed / Lapsed |