Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1978-09-01
1980-11-04
Downey, Mary F.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430551, 430362, 430372, G03C 176
Patent
active
042321140
ABSTRACT:
A color photographic light-sensitive element having (1) reduced fog, (2) low reduction in sensitivity and (3) good yellow dye image light fastness, and comprising a support having thereon at least one silver halide photographic emulsion and optionally one or more non-light-sensitive subsidiary layers, wherein a blue-sensitive silver halide photographic emulsion layer and/or a non-light-sensitive layer adjacent thereto contains at least one asymmetrical hydroquinone compound selected from the group consisting of 2-methyl-5-tert-octylhydroquinone, 2-tert-butyl-5-tert- amylhydroquinone, 2-tert-butyl-5-tert-hexylhydroquinone, 2-methyl-5-tert-hexylhydroquinone, 2-methyl-5-tert-amylhydroquinone, 2-methyl-5-(1'-methylcyclohexyl)hydroquinone and precursors thereof wherein either or both hydroxyl groups are modified with an acyl group represented by the formulae: ##STR1## wherein R represents an alkyl group.
REFERENCES:
patent: 2701197 (1955-02-01), Thirtle et al.
patent: 2732300 (1956-01-01), Thirtle et al.
patent: 3930866 (1976-01-01), Oishi et al.
patent: 3935016 (1976-01-01), Nishimura et al.
patent: 3948663 (1976-04-01), Shiba et al.
Adachi Keiichi
Mitsui Akio
Shishido Tadao
Downey Mary F.
Fuji Photo Film Co. , Ltd.
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