US4304844A
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Method for forming a cyan dye image
Assignee: Individual
•
Filing: 1980-05-01
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Granted: 1981-12-08
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Expires: 2000-05-01
Abstract
Abstract A method for forming a cyan dye image by developing an exposed silver halide photographic material with a developer containing a color developing agent in the presence of a cyan coupler, wherein the coupler is a 2,5-diacylaminophenol in which each acylamino group has a substituent containing an oxycarbonyl, sulfonyloxy, oxysulfonyl, arylsulfonamide or arylsulfamoyl group or other organic group containing a sulfone group.
Inventors
- 👤 Wataru Fujimatsu
- 👤 Yasushi Usagawa
- 👤 Osamu Sasaki
- 👤 Katsumi Matsuura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:02
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/305; G03C7/30511; G03C7/30517; G03C7/30523; G03C7/32; G03C7/34; G03C7/346
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
64 words
A method for forming a cyan dye image by developing an exposed silver halide photographic material with a developer containing a color developing agent in the presence of a cyan coupler, wherein the cyan coupler is a 2,5-di-acylaminophenol in which each of acylamino group has a substituent containing an oxycarbonyl, sulfonyloxy, oxysulfonyl, arylsulfonamide or arylsulfamoyl group or other organic group containing a sulfone group.
Claim 2
Independent Claim
64 words
A method for forming a cyan dye image by developing an exposed silver halide photographic material with a developer containing a color developing agent in the presence of a cyan coupler, wherein the cyan coupler is a 2,5-di-acylaminophenol in which each of acylamino group has a substituent containing an oxycarbonyl, sulfonyloxy, oxysulfonyl, arylsulfonamide or arylsulfamoyl group or other organic group containing a sulfone group.
Claim 3
Dependent Claim
118 words
A method according to claim 1 wherein the cyan coupler is represented by the following formula: ##STR90## in which R and R' each represent a hydrogen atom or an alkyl group having 1 to 20 carbon atoms; R 1 and R 2 each represent a hydrogen atom or an oxycarbonyl, sulfonyloxy, oxysulfonyl, arylsulfonamide, arylsulfamoyl group, or an univalent organic group having a sulfone group; R 3 represents a hydrogen or halogen atom; X and Y each represent an alkylene or arylene group; Z represents a hydrogen atom or a split-off radical; and n and m each have a value of an integer of 1 or 2; provided that R 1 and R 2 are not hydrogen atom simultaneously.
Claim 4
Dependent Claim
13 words
A method according to claim 2 wherein R 3 represents a hydrogen atom.
Claim 5
Dependent Claim
13 words
A method according to claim 2 wherein R 3 represents a chlorine atom.
Claim 6
Dependent Claim
12 words
A method according to claim 2 wherein Z represents a split-off radical.
Claim 7
Dependent Claim
24 words
A method according to claim 5 wherein the split-off radical is a halogen atom or an aryloxy, carbamoyloxy, carbonylmethoxy, acyloxy, alkyloxy or sulfonamide group.
Claim 8
Dependent Claim
14 words
A method according to claim 6 wherein the split-off group is a chlorine atom.
Claim 9
Dependent Claim
19 words
A method according to claim 2 wherein X and Y each represents a tert-butylene, phenylene or a naphthalene group.
Claim 10
Dependent Claim
13 words
A method according to claim 1 wherein the developer contains no benzyl alcohol.
Claim 11
Dependent Claim
48 words
A photographic material having a silver halide emulsion layer coated on a support which layer comprising a cyan coupler of a 2,5-diacylaminophenol in which each of acylamino group has a substituent containing an oxycarbonyl, sulfonyloxy, oxysulfonyl, arylsulfonamide or arylsulfamoyl group or other organic group containing a sulfone group.
Claim 12
Dependent Claim
48 words
A photographic material having a silver halide emulsion layer coated on a support which layer comprising a cyan coupler of a 2,5-diacylaminophenol in which each of acylamino group has a substituent containing an oxycarbonyl, sulfonyloxy, oxysulfonyl, arylsulfonamide or arylsulfamoyl group or other organic group containing a sulfone group.
Claim 13
Dependent Claim
119 words
A photographic material according to claim 10 wherein the cyan coupler is represented by the following formula: ##STR91## in which R and R' each represent a hydrogen atom or an alkyl group having 1 to 20 carbon atoms; R 1 and R 2 each represent a hydrogen atom or an oxycarbonyl, sulfonyloxy, oxysulfonyl, arylsulfonamide, arylsulfamoyl group, or an univalent organic group having a sulfone group; R 3 represents a hydrogen or halogen atom; X and Y each represent an alkylene or arylene group; Z represents a hydrogen atom or a split-off radical; and n and m each have a value of an integer of 1 or 2; provided that R 1 and R 2 are not hydrogen atom simultaneously.
Claim 14
Dependent Claim
14 words
A photographic material according to claim 11 wherein R 3 represents a hydrogen atom.
Claim 15
Dependent Claim
14 words
A photographic material according to claim 11 wherein R 3 represents a chlorine atom.
Claim 16
Dependent Claim
13 words
A photographic material according to claim 11 wherein Z represents a split-off radical.
Claim 17
Dependent Claim
25 words
A photographic material according to claim 14 wherein the split-off radical is a halogen atom or an aryloxy, carbamoyloxy, carbonylmethoxy, acyloxy, alkyloxy or sulfonamide group.
Claim 18
Dependent Claim
15 words
A photographic material according to claim 15 wherein the split-off group is a chlorine atom.
Claim 19
Dependent Claim
20 words
A photographic material according to claim 11 wherein X and Y each represents a tert-butylene, phenylene or a naphthalene group.
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) | 1984-12-07 | 1985-06-08 | 1985-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-07 | 1989-06-08 | 1989-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-07 | 1993-06-08 | 1993-12-08 | $7700.00 | Window Closed / Lapsed |