Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1986-08-13
1988-03-15
Louie, Won H.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430546, 430552, 430553, G03C 140, G03C 146
Patent
active
047313200
ABSTRACT:
A silver halide photographic material having one or more silver halide emulsion layers formed on a support is disclosed wherein at least one of said silver halide emulsion layers contains at least one cyan coupler of formula (I) dispersed therein with the aid of a high-boiling organic solvent having a dielectric constant of not more than 6.0: ##STR1## (wherein R.sub.1 is a straight- or branched-chain alkyl group having 2 or 4 carbon atoms; X is a hydrogen atom or a group capable of leaving upon coupling reaction; and R.sub.2 is a ballast group).
REFERENCES:
patent: 4217410 (1980-08-01), Nakamura et al.
patent: 4327175 (1982-04-01), Toda et al.
patent: 4407940 (1983-10-01), Nakamura et al.
patent: 4451558 (1984-05-01), Sugita et al.
patent: 4455367 (1984-06-01), Seoka et al.
Kadowaki Takashi
Nishijima Toyoki
Onodera Kaoru
Sasaki Masao
Takada Shun
Bierman Jordan B.
Konishiroku Photo Industry Co,., Ltd.
Louie Won H.
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