Radiation imagery chemistry: process – composition – or product th – Color imaging process – Using identified radiation sensitive composition in the...
Patent
1980-03-03
1982-01-12
Brown, J. Travis
Radiation imagery chemistry: process, composition, or product th
Color imaging process
Using identified radiation sensitive composition in the...
430222, 430241, 430393, 430472, 430474, 430476, 430505, 430555, 430558, G03C 700, G03C 140
Patent
active
043106196
ABSTRACT:
A color photographic material and a method of forming a color photographic image which utilizes a 5-pyrazolone magenta coupler shown by the following general formula (I): ##STR1## wherein R represents an acylamino group, an anilino group or a ureido group; R.sub.1, R.sub.2 and R.sub.3, which may be the same or different, each represents a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, a cycloalkyl group, an aralkyl group, an alkoxy group, an aryloxy group, a carboxy group, an aryl group or a heterocyclic group (which groups may be substituted) and R.sub. and R.sub.2 may combine to form a 2-indazolyl group, provided that R.sub.1, R.sub.2 and R.sub.3 are not hydrogen atoms at the same time; and Ar represents a phenyl group which may be substituted with one or more halogen atoms, alkyl groups, alkoxy groups or cyano groups. These 5-pyrazolone magenta couplers are two-equivalent magenta couplers and particularly suitable for providing silver halide color photographic light-sensitive materials having high sensitivity.
REFERENCES:
patent: 3990899 (1976-11-01), Shiba et al.
patent: 4049458 (1977-09-01), Boie et al.
patent: 4076533 (1978-02-01), Ota et al.
patent: 4133686 (1979-01-01), Ichijima et al.
Furutachi Nobuo
Ichijima Seiji
Watanabe Toshiyuki
Yabuki Yoshiharu
Brown J. Travis
Fuji Photo Film Co. , Ltd.
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