US3839042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hardening hydrophilic colloid silver halide emulsion layer with a 2-haloethylsulfonyl compound
Assignee: Eastman Kodak Co
•
Filing: 1972-09-29
•
Granted: 1974-10-01
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Expires: 1992-09-29
Abstract
Abstract Photographic elements are disclosed containing a hydrophilic colloid layer hardened with a compound having the structural formula:
Inventors
- 👤 R Silverman
- 👤 C Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:29
CPC Classifications
C; C07; C07C; C07C317/00; C07C317/02; C07C317/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
26 words
A PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT AND AT LEAST ONE HYDROPHILIC COLLOID LAYER CONTAINING A RADIATIONSENSITIVE SILVER HALIDE HARDENED WITH A COMPOUND HAVING THE STRUCTURAL FORMULA:
Claim 2
Dependent Claim
26 words
A PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT AND AT LEAST ONE HYDROPHILIC COLLOID LAYER CONTAINING A RADIATIONSENSITIVE SILVER HALIDE HARDENED WITH A COMPOUND HAVING THE STRUCTURAL FORMULA:
Claim 3
Dependent Claim
75 words
A photographic element comprising a support and at least one gelatin layer containing a radiation-sensitive silver halide hardened with a compound having the structural formula: XCH2CH2SO2Q(OQ)mSO2CH2CH2X wherein X in each occurrence is halogen; Q is an aliphatic or phenyl substituted aliphatic divalent hydrocarbon radical having from one to six aliphatic carbon atoms, said radical being selected from the group consisting of alkylene and alkenylene; and m is an integer of from zero to three inclusive.
Claim 4
Dependent Claim
75 words
A photographic element comprising a support and at least one gelatin layer containing a radiation-sensitive silver halide hardened with a compound having the structural formula: XCH2CH2SO2Q(OQ)mSO2CH2CH2X wherein X in each occurrence is halogen; Q is an aliphatic or phenyl substituted aliphatic divalent hydrocarbon radical having from one to six aliphatic carbon atoms, said radical being selected from the group consisting of alkylene and alkenylene; and m is an integer of from zero to three inclusive.
Claim 5
Dependent Claim
34 words
A photographic element according to claim 1 in which said layer contains from 0.5 to 6 percent by weight of said hardener compound based on the weight of hardenable colloid present in said layer.
Claim 6
Dependent Claim
15 words
A photographic element according to claim 1 in which said layer contains a dye-forming coupler.
Claim 7
Dependent Claim
25 words
A photographic element according to claim 1 in which said hardener compound has 2 2-chloroethylsulfonyl radicals coupled through an aliphatic hydrocarbon or ether linking radical.
Claim 8
Dependent Claim
16 words
A photographic element according to claim 1 in which said hardener compound is a bis(2-haloethylsulfonylalkyl) ether.
Claim 9
Dependent Claim
15 words
A photographic element according to claim 1 in which said hardener compound is a bis(2-haloethylsulfonyl)dioxaalkane.
Claim 10
Dependent Claim
15 words
A photographic element according to claim 1 in which said hardener compound is a bis(2-haloethylsulfonyl)-alkane.
Claim 11
Dependent Claim
15 words
A photographic element according to claim 1 in which said hardener compound is a bis(2-haloethylsulfonyl)-alkene.
Claim 12
Dependent Claim
16 words
A photographic element according to claim 1 in which said hardener compound exhibits the structural formula:
Claim 13
Dependent Claim
125 words
In a process comprised of the steps of forming a radiation-sensitive gelatin silver halide emulsion coating on a support, subjecting the radiation-sensitive gelatin coating to an image forming exposure, hardening the emulsion coating and developing within the gelatin coating a photographic record of the exposure image, the improvement comprising hardening the emulsion coating after exposure and before image development by introducing into the emulsion coating a hardening concentration of a compound having the structural formula: XCH2CH2SO2Q(OQ)mSO2CH2CH2X wherein X is each occurrence is halogen; Q is an aliphatic or phenyl substituted aliphatic divalent hydrocarbon radical having from one to six aliphatic carbon atoms, Said radical being selected from the group consisting of alkylene and alkenylene; and m is an integer of from zero to three inclusive.
Claim 14
Dependent Claim
125 words
In a process comprised of the steps of forming a radiation-sensitive gelatin silver halide emulsion coating on a support, subjecting the radiation-sensitive gelatin coating to an image forming exposure, hardening the emulsion coating and developing within the gelatin coating a photographic record of the exposure image, the improvement comprising hardening the emulsion coating after exposure and before image development by introducing into the emulsion coating a hardening concentration of a compound having the structural formula: XCH2CH2SO2Q(OQ)mSO2CH2CH2X wherein X is each occurrence is halogen; Q is an aliphatic or phenyl substituted aliphatic divalent hydrocarbon radical having from one to six aliphatic carbon atoms, Said radical being selected from the group consisting of alkylene and alkenylene; and m is an integer of from zero to three inclusive.
References Cited (Backward Citations)
US3305376A
Cited
US3647453A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |