US4266019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide photographic material containing yellow coupler
Assignee: Fujifilm Holdings Corp
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Filing: 1979-09-13
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Granted: 1981-05-05
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Expires: 1999-09-13
Abstract
Abstract A silver halide color photographic material containing a yellow coupler represented by following general formula (I): <IMAGE> (I) wherein A represents a yellow coupler from which one hydrogen atom bound to a carbon atom other than at a coupling active site is removed, and R1 and R2 each represents a straight chain or branched alkyl group containing 2 to 16 carbon atoms, with the sum of the carbon atoms contained in R1 and R2 being 10 to 20 is disclosed.
Inventors
- 👤 Hidetoshi Kobayashi
- 👤 Mitsugu Tanaka
- 👤 Kozo Inouye
- 👤 Hideki Naito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:03
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/02; C07D263/30; C07D263/34; C07D263/44; C07D233/00; C07D233/54; C07D233/66; C07D233/72; C07D249/00; C07D249/02; C07D249/08; C07D249/10; C07D249/12; G; G03; G03C; G03C7/00; G03C7/30; G03C7/305; G03C7/30511; G03C7/30517; G03C7/30535
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
188 words
A silver halide color photographic material containing a yellow coupler represented by following general formula (I); ##STR16## wherein A represents a yellow coupler from which one hydrogen atom bound to a carbon atom other than at a coupling active site is removed having the formula (II); ##STR17## wherein R 3 represents an aliphatic group, an aromatic group or a heterocyclic ring, R 4 represents an aromatic group or a heterocyclic ring, wherein X is represented by the formulae (VI)-(IX); ##STR18## wherein X 1 and X 2 each represents a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, or a hydroxy group, X 3 , X 4 and X 5 each represents a hydrogen atom, an alkyl group, an aryl group, an aralkyl group or an acyl group, W represents an oxygen atom or a sulfur atom and X 6 represents a monovalent substituent, and R 1 and R 2 each represents a straight chain or branched alkyl group containing 2 to 16 carbon atoms, with the sum of the carbon atoms contained in R 1 and R 2 being 10 to 20.
Claim 2
Dependent Claim
188 words
A silver halide color photographic material containing a yellow coupler represented by following general formula (I); ##STR16## wherein A represents a yellow coupler from which one hydrogen atom bound to a carbon atom other than at a coupling active site is removed having the formula (II); ##STR17## wherein R 3 represents an aliphatic group, an aromatic group or a heterocyclic ring, R 4 represents an aromatic group or a heterocyclic ring, wherein X is represented by the formulae (VI)-(IX); ##STR18## wherein X 1 and X 2 each represents a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, or a hydroxy group, X 3 , X 4 and X 5 each represents a hydrogen atom, an alkyl group, an aryl group, an aralkyl group or an acyl group, W represents an oxygen atom or a sulfur atom and X 6 represents a monovalent substituent, and R 1 and R 2 each represents a straight chain or branched alkyl group containing 2 to 16 carbon atoms, with the sum of the carbon atoms contained in R 1 and R 2 being 10 to 20.
Claim 3
Dependent Claim
43 words
The silver halide color photographic material of claim 1, wherein said coupler is represented by the formulae ##STR19## wherein R 1 , R 2 , R 3 and X are defined as above and Y represents a halogen atom or an alkoxy group.
Claim 4
Dependent Claim
28 words
The color photographic material of claims 1 or 2, wherein said coupler is present in an amount of about 5 to 1500 grams per mol of silver halide.
Claim 5
Dependent Claim
28 words
The color photographic material of claims 1 or 2, wherein said coupler is present in an amount of about 10 to 500 grams per mol of silver halide.
Claim 6
Dependent Claim
27 words
The color photographic material of claim 1, wherein said material is a color negative film, a color positive film, a color reversal film or a color paper.
Claim 7
Dependent Claim
18 words
The color photographic material of claim 1, wherein said coupler is located in a silver halide emulsion layer.
Claim 8
Dependent Claim
22 words
The color photographic material of claim 6, wherein said silver halide emulsion layer or an adjacent layer contains a p-substituted phenol derivative.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-05-04 | 1984-11-03 | 1985-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-04 | 1988-11-03 | 1989-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-04 | 1992-11-03 | 1993-05-05 | $7700.00 | Window Closed / Lapsed |