PROCESS FOR HARDENING PHOTOGRAPHIC GELATIN WITH VINYL SULFONES CONTAINING SULFONYL ETHYL SULFATE GROUPS

Process for the hardening photographic gelatin with vinyl sulfones containing sulfonyl ethyl sulfate groups The difficulties in the casting process of photographic gelatin containing layers caused by increases in the viscosity of the casting solution due to the premature crosslinking of gelatin can...

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Bibliographic Details
Main Author HIMMELMANN, WOLFGANG
Format Patent
LanguageEnglish
French
Published 10.01.1989
Edition4
Subjects
AUXILIARY PROCESSES IN PHOTOGRAPHY
CHEMISTRY
CINEMATOGRAPHY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
ELECTROGRAPHY
HOLOGRAPHY
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES
PHOTOGRAPHY
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES
PHYSICS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:Process for the hardening photographic gelatin with vinyl sulfones containing sulfonyl ethyl sulfate groups The difficulties in the casting process of photographic gelatin containing layers caused by increases in the viscosity of the casting solution due to the premature crosslinking of gelatin can be prevented if a compound containing at least one vinyl sulfone group and at least one sulfonyl ethyl sulfate group in the form of their salts is incorporated in the casting composition of the gelatin-containing layer(s) or in the gelatin-containing layer(s) applied to the layer support.
Bibliography:Application Number: CA19830431538