US5118599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yellow couplers for photographic elements and processes
Assignee: Eastman Kodak Co
•
Filing: 1991-02-07
•
Granted: 1992-06-02
•
Expires: 2011-02-07
Abstract
Abstract Novel yellow image dye-forming couplers are disclosed. The couplers comprise an active open-chain keto-methylene group, an anilide group attached to the keto-methylene group, and a cyclic ether group attached to the keto-methylene group. The cyclic ether group comprises two oxygen atoms. Either the anilide group or the cyclic ether may carry a ballast group capable of immobilizing the coupler in the layer in which it is contained. Color photographic elements incorporating the novel couplers are also disclosed.
Inventors
- 👤 Philip T. S. Lau
- 👤 Danny R. Thompson
- 👤 Frederick R. Green, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:23
CPC Classifications
C; C07; C07D; C07D319/00; C07D319/04; C07D319/06; G; G03; G03C; G03C7/00; G03C7/30; G03C7/305; G03C7/30511; G03C7/30517; G03C7/30535; G03C7/32; G03C7/36
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
68 words
A color photographic element comprising a support bearing at least one photographic silver halide emulsion layer in association with an image dye-forming coupler, said coupler comprising: an active open-chain keto-methylene group, an anilide group attached to said keto-methylene group, said anilide group comprising an organic group capable of immobilizing the coupler in the layer in which it is contained; and a dioxane group attached to said keto-methylene group.
Claim 2
Dependent Claim
68 words
A color photographic element comprising a support bearing at least one photographic silver halide emulsion layer in association with an image dye-forming coupler, said coupler comprising: an active open-chain keto-methylene group, an anilide group attached to said keto-methylene group, said anilide group comprising an organic group capable of immobilizing the coupler in the layer in which it is contained; and a dioxane group attached to said keto-methylene group.
Claim 3
Dependent Claim
14 words
A color photographic element according to claim 1, wherein said dioxane is a 1,3-dioxane.
Claim 4
Dependent Claim
22 words
A color photographic element according to claim 2, wherein said keto-methylene group is substituted by a coupling-off group at the coupling position.
Claim 5
Dependent Claim
129 words
A color photographic element according to claim 1, wherein said coupler is a compound according to the formula I ##STR49## wherein R 1 and R 2 are the same or different and may be hydrogen, alkyl, cycloalkyl, bicycloalkyl or aryl, R 3 is alkyl, aryl, arylalkyl, or a ballast group, X is hydrogen or a coupling off group, Y and R 4 are the same or different and may be hydrogen, alkyl, O-alkyl, S-alkyl, SO 2 -alkyl, SO 2 NH-alkyl, SO 2 NH-aryl, NHCONH-alkyl, NHCONH-aryl, NHCO-alkyl, CO 2 -alkyl, O-aryl, SO 2 -aryl, SO 2 N(alkyl)-aryl, NHCO-aryl, CO 2 -aryl, O(CH 2 CH 2 O) 1-4 H, COOH, Cl, F, CN, CF 3 or NO 2 , or R 4 can be a ballast group, and n is 0-3.
Claim 6
Dependent Claim
20 words
A color photographic element according to claim 4, wherein said coupling-off group is selected from the group consisting of ##STR50##
Claim 7
Dependent Claim
24 words
A color photographic element according to claim 4, wherein R 1 and R 2 are selected from the group consisting of hydrogen and methyl.
Claim 8
Dependent Claim
22 words
A color photographic element according to claim 4, wherein R 3 is selected from the group consisting of methyl and straight-chain alkyl.
Claim 9
Dependent Claim
17 words
A color photographic element according to claim 4, wherein R 1 and R 2 are both hydrogen.
Claim 10
Dependent Claim
17 words
A color photographic element according to claim 6, wherein R 1 and R 2 are both methyl.
Claim 11
Dependent Claim
17 words
A color photographic element according to claim 7, wherein R 3 is C 8 H 17 .
Claim 12
Dependent Claim
17 words
A color photographic element according to claim 7, wherein R 3 is C 12 H 25 .
Claim 13
Dependent Claim
13 words
A color photographic element according to claim 7, wherein R 3 is methyl.
Claim 14
Dependent Claim
19 words
A color photographic element according to claim 4, wherein R 4 is selected from the group consisting of ##STR51##
Claim 15
Dependent Claim
34 words
A color photographic element comprising a support bearing at least one photographic silver halide emulsion layer in association with an image dye-forming coupler wherein the coupler is a yellow image dye-forming 1,3-dioxane-5-carbonyl acetanilide coupler.
Claim 16
Dependent Claim
34 words
A color photographic element comprising a support bearing at least one photographic silver halide emulsion layer in association with an image dye-forming coupler wherein the coupler is a yellow image dye-forming 1,3-dioxane-5-carbonyl acetanilide coupler.
Claim 17
Dependent Claim
122 words
A color photographic element according to claim 14, wherein the element is a reversal film and the coupler is a four-equivalent yellow coupler represented by the formula III ##STR52## wherein R 1 and R 2 are the same of different and may be hydrogen, alkyl, cycloalkyl, bicycloalkyl, aryl or a ballast group, R 3 is alkyl, aryl or a ballast group, X is hydrogen Y is hydrogen, alkyl, O-alkyl, S-alkyl, SO 2 -alkyl, SO 2 H-alkyl, SO 2 NH-aryl, NHCONH-alkyl, NHCONH-aryl, NHCO-alkyl, CO 2 -alkyl, O-aryl, SO 2 -aryl, SO 2 N(alkyl)-aryl, NHCO-aryl, CO 2 -aryl, O(CH 2 CH 2 O) 1-4 H, COOH, Cl, F, CN, CF 3 or NO 2 , R 4 is a ballast group, n is 0-3.
Claim 18
Dependent Claim
123 words
A color photographic element according to claim 14, wherein the element is a color negative film or color paper and the coupler is a two-equivalent formula II: ##STR53## wherein R 1 and R 2 are the same or different an may by hydrogen, alkyl, cycloalkyl, bicycloalkyl, aryl or a ballast group, R 3 is alkyl, aryl or a ballast group. X is a coupling-off group, Y is hydrogen, alkyl, O-alkyl, S-alkyl, SO 2 -alkyl, SO 2 NH-alkyl, SO 2 NH-aryl, NHCONH-alkyl, NHCONH-aryl, NHCO-alkyl, CO 2 -alkyl, O-aryl, SO 2 -aryl, SO 2 N(alkyl)-aryl, NHCO-aryl, CO 2 -aryl, O(CH 2 CH 2 O) 1-4 H, COOH, Cl, F, CN, CF 3 or NO 2 , R 4 is a ballast group, n is 0-3.
References Cited (Backward Citations)
CH9505A
Cited
US2184303A
Cited
US2298443A
Cited
US2359274A
Cited
US2407210A
Cited
US2875057A
Cited
US3408194A
Cited
US3265506A
Cited
US3415652A
Cited
US3447928A
Cited
US3960570A
Cited
DE2632401A1
Cited
US4268571A
Cited
US4362806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-06-02 | 1995-12-02 | 1996-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-02 | 1999-12-02 | 2000-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-02 | 2003-12-02 | 2004-06-02 | $7700.00 | Window Closed / Lapsed |