Hardening a hydrophilic colloid composition

A hydrophilic colloid is hardened with a vinyl-sulfone hardener in the presence of a borate compound in an amount sufficient to accelerate the rate of hardening. The borate compound is preferably a compound of Formula (I), or a salt, hydrate or precursor thereof: B(L)n wherein each L is independentl...

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Bibliographische Detailangaben
Hauptverfasser:	TAYLOR, JEFFREY FACER, VISSER, SUSAN A, THAI, LAN BACH, YAU, HWEI-LING, FLOOD, ELMER CHARLES
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AUXILIARY PROCESSES IN PHOTOGRAPHY CHEMISTRY CINEMATOGRAPHY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DERIVATIVES OF NATURAL 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 USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	A hydrophilic colloid is hardened with a vinyl-sulfone hardener in the presence of a borate compound in an amount sufficient to accelerate the rate of hardening. The borate compound is preferably a compound of Formula (I), or a salt, hydrate or precursor thereof: B(L)n wherein each L is independently -OH, -OR, -NH, -NR, or a substituted or unsubstituted alkyl group, substituted or unsubstituted aryl group, or substituted or unsubstituted heterocyclic group; R is a substituted or unsubstituted alkyl group or substituted or unsubstituted aryl group; and, n is 1, 2, or 3, with the proviso that at least one L is -OH. Preferred borate compounds are sodium and potassium borate, and hydrates thereof, and phenyl boronic acid.