US3841872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrophilic-colloid silver halide emulsion hardened with a bisvinylsulfonyl compound
Assignee: Eastman Kodak Co
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Filing: 1972-09-29
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Granted: 1974-10-15
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Expires: 1992-09-29
Abstract
Abstract Photographic elements are disclosed containing a hydrophilic colloid layer hardened with a compound having two vinylsulfonyl radicals coupled through a divalent hydrocarbon radical chosen from the group consisting of (1) an aliphatic radical having from 1 to 6 carbon atoms, (2) -X-Y-X- in which X is an alkylene group having 1 or 2 carbon atoms and Y is a phenylene group and (3) a phenyl-substituted methylene group. The compounds may be utilized generally in hardenable hydrophilic colloid compositions. Except for those compounds incorporating an alkylene divalent hydrocarbon radical, the hardeners are new compounds.
Inventors
- 👤 D Burness
- 👤 R Silverman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:58
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/30; C; C07; C07C; C07C317/00; C07C317/02; C07C317/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
87 words
A PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT AND AT LEAST ONE RADIATION-SENSITIBE HYDROPHILIC COLLOID LAYER CONTAINING ILVER HALIDE AND AT LEAST ONE HYDROPHILIC COLLID LAYER HARDENED WITH A COMPOUND HAVING TWO VINYLSULFONYL RADICALS COUPLED THROUGH A DIVALENT HYDROCARBON RADICAL CHOSEN FROM THE GROUP CONSISTING OF: A. AN UNSUBSTITUTED ALKYL OR AN UNSUBSTITUTED ALKYLENE RADICAL HAVING FROM 1 TO 6 CARBON ATOMS, B. -X-Y-X- IN WHICH X IS AN UNSUBSTITUTED ALKYLENE GROUP HAVING 1 TO 2 CARBON ATOMS AND Y IS AN UNSUBSTITUTED PHENYLENE GROUP, AND C. PHENYL-SUBSTITUTED METHYLENE.
Claim 2
Dependent Claim
87 words
A PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT AND AT LEAST ONE RADIATION-SENSITIBE HYDROPHILIC COLLOID LAYER CONTAINING ILVER HALIDE AND AT LEAST ONE HYDROPHILIC COLLID LAYER HARDENED WITH A COMPOUND HAVING TWO VINYLSULFONYL RADICALS COUPLED THROUGH A DIVALENT HYDROCARBON RADICAL CHOSEN FROM THE GROUP CONSISTING OF: A. AN UNSUBSTITUTED ALKYL OR AN UNSUBSTITUTED ALKYLENE RADICAL HAVING FROM 1 TO 6 CARBON ATOMS, B. -X-Y-X- IN WHICH X IS AN UNSUBSTITUTED ALKYLENE GROUP HAVING 1 TO 2 CARBON ATOMS AND Y IS AN UNSUBSTITUTED PHENYLENE GROUP, AND C. PHENYL-SUBSTITUTED METHYLENE.
Claim 3
Dependent Claim
33 words
A photographic element according to claim 1 in which said layer contains from 0.5 to 6 percent by weight of said hardener based on the weight of hardenable colloid present in said layer.
Claim 4
Dependent Claim
33 words
A photographic element according to claim 1 in which said layer contains from 1 to 3 percent by weight of said hardener based on the weight of hardenable colloid present in said layer.
Claim 5
Dependent Claim
13 words
A photographic element according to claim 1 in which said layer contains gelatin.
Claim 6
Dependent Claim
14 words
A photographic element according to claim 1 in which X is an unsubstituted methylene.
Claim 7
Dependent Claim
16 words
A photographic element according to claim 1 in which said hydrophilic colloid is hardened with 1,3-bis(vinylsulfonyl)propane.
Claim 8
Dependent Claim
17 words
A photographic element according to claim 1 in which said hydrocarbon radical is an unsubstituted alkylene radical.
Claim 9
Dependent Claim
79 words
A photographic element comprising a support and at least one radiation-sensitive silver halide-containing gelatin layer hardened with a compound having the structural formula: CH2 CHSO2-A-SO2CH CH2 in which A is chosen from the group consisting of a. an unsubstituted alkyl or an unsubstituted alkylene radical having from 1 to 6 carbon atoms; b. -X-Y-X- in which X is an unsubstituted alkylene group having 1 or 2 carbon atoms and Y is an unsubstituted phenylene group; and c. phenyl-substituted methylene.
Claim 10
Dependent Claim
79 words
A photographic element comprising a support and at least one radiation-sensitive silver halide-containing gelatin layer hardened with a compound having the structural formula: CH2 CHSO2-A-SO2CH CH2 in which A is chosen from the group consisting of a. an unsubstituted alkyl or an unsubstituted alkylene radical having from 1 to 6 carbon atoms; b. -X-Y-X- in which X is an unsubstituted alkylene group having 1 or 2 carbon atoms and Y is an unsubstituted phenylene group; and c. phenyl-substituted methylene.
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) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |