Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1987-10-26
1988-09-13
Shah, Mukund J.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430553, 430555, 430557, 430558, G03C 108, G03C 146, G03C 726, G03C 732
Patent
active
047709855
ABSTRACT:
A silver halide photographic material is disclosed which has formed on a support in sequence a silver halide emulsion layer incorporating a yellow coupler of the formula (I), a silver halide emulsion layer incorporating a magenta coupler of the formula (II), and a silver halide emulsion layer incorporating a cyan coupler of the formula (III): ##STR1## wherein R.sub.1 is a hydrogen atom, a halogen atom or an alkoxy group; R.sub.2 is --NHCOR.sub.3, --NHSO.sub.2 R.sub.3, --COOR.sub.3 or ##STR2## provided that R.sub.3 and R.sub.4 are each an alkyl group; and Z.sub.1 is a non-metallic atomic group necessary to form a 5- or 6-membered hetero ring together with a nitrogen atom); ##STR3## [wherein R.sub.5 is a hydrogen atom, a halogen atom or an alkoxy group having 1 to 4 carbon atoms; R.sub.6 is (provided that R.sub.7 and R.sub.8 are each a hydrogen atom or an acyl group, and when R.sub.7 and R.sub.8 are each an acyl group, they may be combined to form a 5-membered hetero ring together with a nitrogen atom), an alkyl- or arylsulfonamido group, an alkyl- or arylsulfamoyl group or an alkyl- or arylcarboxylic acid ester group; Y.sub.1, Y.sub.2, and Y.sub.3 are each a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a carboxy group, an alkoxycarbonyl group, a nitro group, an aryloxy group, a cyano group or an acylamino group; and Z.sub.2 is an atom or a group that leaves when it enters into a coupling reaction with the oxidation product of a color developing agent]; ##STR4## (wherein R.sub.9 is a straight- or branched-chain alkyl group having 2 to 4 carbon atoms; and R.sub.10 is a ballast group).
REFERENCES:
patent: 2895826 (1959-07-01), Salmimen
patent: 3772002 (1973-11-01), Ramello
patent: 4009035 (1977-02-01), Kojima et al.
patent: 4299914 (1981-11-01), Fujimatsu et al.
patent: 4456681 (1984-06-01), Kadowaki et al.
patent: 4536472 (1985-08-01), Kato et al.
Kadowaki Takashi
Nishijima Toyoki
Onodera Kaoru
Sasaki Masao
Takada Shun
Bierman Jordan B.
Konishiroku Photo Industry Co,., Ltd.
Shah Mukund J.
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