US4087283A
Expired / Lapsed
US
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Composition for hardening photographic hydrophilic binder and photographic element containing the same
Assignee: GAF Corp
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Filing: 1976-03-01
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Granted: 1978-05-02
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Expires: 1996-03-01
Abstract
Abstract A hardener composition for hardening a hydrophilic photographic binder comprises a carbodiimide hardening agent and from about 5 to about 200 mol per cent, based on the carbodiimide hardening agent, of an N-hydroxy cyclic amine having a hydroxy group on the ring amino nitrogen atom. The layers to be hardened are exemplified by photographic gelatino silver halide layers and/or the gelatino protective layer of a photographic element.
Inventors
- 👤 Angelo J. Battisti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:57
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/30
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
76 words
A photographic element comprising at least one supported layer of a photographic silver halide emulsion in a hydrophilic binder hardened by a hardener composition comprising a carbodiimide hardening agent and from about 5 to about 200 mole percent, based on the carbodiimide hardening agent, of an N-hydroxy cyclic amine selected from the group consisting of N-hydroxy succinimide, N-hydroxyphthalimide, N-hydroxypiperidine, 3-hydroxy-4-oxo-3,4-dihydro-1,2,3-benzotriazole and 1-hydroxybenzotriazole is selected from the group consisting of N-hydroxy succinimide, N-hydroxyphthalimide, N-hydroxypiperidine, 3-hydroxy-4-oxo-3,4-dihydro-1,2,3,-benzotriazole and 1-hydroxybenzotriazole.
Claim 2
Dependent Claim
76 words
A photographic element comprising at least one supported layer of a photographic silver halide emulsion in a hydrophilic binder hardened by a hardener composition comprising a carbodiimide hardening agent and from about 5 to about 200 mole percent, based on the carbodiimide hardening agent, of an N-hydroxy cyclic amine selected from the group consisting of N-hydroxy succinimide, N-hydroxyphthalimide, N-hydroxypiperidine, 3-hydroxy-4-oxo-3,4-dihydro-1,2,3-benzotriazole and 1-hydroxybenzotriazole is selected from the group consisting of N-hydroxy succinimide, N-hydroxyphthalimide, N-hydroxypiperidine, 3-hydroxy-4-oxo-3,4-dihydro-1,2,3,-benzotriazole and 1-hydroxybenzotriazole.
Claim 3
Dependent Claim
70 words
A photographic element comprising at least one supported layer of a photographic silver halide emulsion in a hydrophilic binder effectively hardened by a hardener composition comprising a carbodiimide hardening agent selected from the group consisting of 1,3-dimethyl-carbodiimide, 1-methyl-3-methoxy-methylcarbodiimide, di-isopropyl carbodiimide, dicyclohexylcarbodiimide, 1-ethyl-3-[2-morpholinyl-(4)-ethyl]-carbodiimide, 1-cyclohexyl-3-[2-morpholinyl-(4)-ethyl]-carbodiimide, 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide, 1-n-butyl-3-[(3-dimethylamino)propyl]-carbodiimide, and acid or quaternary amine salts thereof, and an N-hydroxy cyclic amine selected from the group consisting of N-hydroxy succinimide, N-hydroxyphthalimide, N-hydroxypiperidine, 3-hydroxy-4-oxo-3,4-dihydro-1,2,3-benzotriazole and 1-hydroxybenzotriazole.
Claim 4
Dependent Claim
70 words
A photographic element comprising at least one supported layer of a photographic silver halide emulsion in a hydrophilic binder effectively hardened by a hardener composition comprising a carbodiimide hardening agent selected from the group consisting of 1,3-dimethyl-carbodiimide, 1-methyl-3-methoxy-methylcarbodiimide, di-isopropyl carbodiimide, dicyclohexylcarbodiimide, 1-ethyl-3-[2-morpholinyl-(4)-ethyl]-carbodiimide, 1-cyclohexyl-3-[2-morpholinyl-(4)-ethyl]-carbodiimide, 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide, 1-n-butyl-3-[(3-dimethylamino)propyl]-carbodiimide, and acid or quaternary amine salts thereof, and an N-hydroxy cyclic amine selected from the group consisting of N-hydroxy succinimide, N-hydroxyphthalimide, N-hydroxypiperidine, 3-hydroxy-4-oxo-3,4-dihydro-1,2,3-benzotriazole and 1-hydroxybenzotriazole.
Claim 5
Dependent Claim
17 words
The photographic element according to claim 2, which is a color photographic element containing a color coupler.
Claim 6
Dependent Claim
51 words
A photographic element as set forth in claim 2 wherein the carbodiimide hardening agent is present in an amount of from 0.01 to about 2.0 m mole per gram of hydrophilic binder and from about 5 to 200 mole percent, based on the carbodiimide hardening agent of the N-hydroxy cyclic amine.
Claim 7
Dependent Claim
51 words
A photographic element as set forth in claim 2 wherein the carbodiimide hardening agent is present in an amount of from 0.01 to about 1.0 m mole per gram of hydrophilic binder and from about 20 to 125 mole percent, based on the carbodiimide hardening agent of the N-hydroxy cyclic amine.
References Cited (Backward Citations)
US3098693A
Cited
US3795666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-01 | 1981-10-31 | 1982-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-01 | 1985-10-31 | 1986-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-01 | 1989-10-31 | 1990-05-02 | $7700.00 | Window Closed / Lapsed |