GB1443386A - Photographic element - Google Patents
Photographic elementInfo
- Publication number
- GB1443386A GB1443386A GB2006374A GB2006374A GB1443386A GB 1443386 A GB1443386 A GB 1443386A GB 2006374 A GB2006374 A GB 2006374A GB 2006374 A GB2006374 A GB 2006374A GB 1443386 A GB1443386 A GB 1443386A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- hardener
- diacrylamide
- hardeners
- bis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
- G03C1/30—Hardeners
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
1443386 Hardening colloid layers in photographic elements EASTMAN KODAK CO 7 May 1974 [7 May 1973 (3)] 20063/74 Heading G2C Hydrophilic colloid layers, e.g. of gelatine, in photographic elements are hardened by the addition of either (1) diacrylamide and 1,7-dichloro-3,3,5,5- tetraoxo-3,5-dithia heptane (i.e. bis (#-chloroethylsulphonyl)-methane) or (2) an acrylic hardener such as diacrylamide, N-methacryloyl-acrylamide or N,N'-diacryloylurea, or formaldehyde, and bis (vinylsulphonylmethyl) ether to the coating composition for the layer or by contacting a formed layer with a solution containing the said hardeners, the weight ratio of the two hardeners in each hardener mixture being from 5:1 to 1:5. The photographic element may be a black and white or colour material and may be a silver salt diffusion element and the layer may be a silver halide emulsion layer. The hardener combinations exhibit reduced afterhardening effects.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00357967A US3840370A (en) | 1973-05-07 | 1973-05-07 | Controlling after-hardening in hardenable hydrophilic colloids |
US00357975A US3850639A (en) | 1973-05-07 | 1973-05-07 | Hydrophilic colloid silver halide emulsion hardened with a bis(vinyl-sulfonylmethyl) ether and an acrylic compound |
US00358237A US3832181A (en) | 1973-05-07 | 1973-05-07 | Photosensitive silver halide material containing a hydrophilic colloid hardened with a combination of formaldehyde and bis(vinylsulfonyl-methyl)ether |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1443386A true GB1443386A (en) | 1976-07-21 |
Family
ID=27408333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2006374A Expired GB1443386A (en) | 1973-05-07 | 1974-05-07 | Photographic element |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2420414A1 (en) |
FR (1) | FR2229079B1 (en) |
GB (1) | GB1443386A (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3128180A (en) * | 1958-07-02 | 1964-04-07 | Eastman Kodak Co | Hardened high-contrast photographic silver chloride emulsions and method of processing |
GB994869A (en) * | 1960-08-03 | 1965-06-10 | Kodak Ltd | Improvements in photographic silver halide emulsions |
BE636285A (en) * | 1962-08-17 | |||
CH486049A (en) * | 1967-08-22 | 1970-02-15 | Ciba Geigy | Use of a combination of two hardening agents to harden film formers for photographic purposes |
US3539644A (en) * | 1967-11-13 | 1970-11-10 | Eastman Kodak Co | Bis(vinylsulfonylmethyl) ether |
US3642486A (en) * | 1970-03-19 | 1972-02-15 | Eastman Kodak Co | Vinylsulfonyl-containing compounds as hardening agents |
FR2201486B1 (en) * | 1972-09-29 | 1977-05-27 | Eastman Kodak Co |
-
1974
- 1974-04-26 DE DE19742420414 patent/DE2420414A1/en active Pending
- 1974-05-02 FR FR7415173A patent/FR2229079B1/fr not_active Expired
- 1974-05-07 GB GB2006374A patent/GB1443386A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2229079A1 (en) | 1974-12-06 |
DE2420414A1 (en) | 1974-11-14 |
FR2229079B1 (en) | 1979-03-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |