Radiation imagery chemistry: process – composition – or product th – Color imaging process – Using identified radiation sensitive composition in the...
Patent
1990-11-20
1992-11-10
Wright, Lee C.
Radiation imagery chemistry: process, composition, or product th
Color imaging process
Using identified radiation sensitive composition in the...
430376, 430385, 430543, 430556, 430557, 430558, G03C 732, G03C 738
Patent
active
051621967
ABSTRACT:
The present invention relates to a novel color coupler for photography and a silver halide color photographic material comprising the same, wherein the color coupler is one of the .beta.,.gamma.-unsaturated nitriles represented by formula (I). The invention provides for a color coupler, particularly a cyan coupler, which forms color images less in subsidiary absorption, good in color reproduction, and excellent in fastness, and a silver halide color photographic material having color images as described above. Further the color coupler can be synthesized from inexpensive raw material at a low cost ##STR1## wherein W represents a hydrogen atom or a group capable of being released when the compound is subjected to a coupling reaction with the oxidized product of an aromatic primary amine derivative, R.sub.1 represents a represents a nitrogen atom, R.sub.2 represents a substituent, if V represents ##STR2## R.sub.2 and R.sub.3 each represent substituent, provided that at least one of R.sub.2 and R.sub.3 represents an electron attractive substituent, and provided that if R.sub.2 or R.sub.3 represents an aliphatic group or an aromatic group, the other does not represent an acyl group, and R.sub.1 and R.sub.2 may bond together to form a ring.
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Mees and James, The Theory of the Photographic Process 3rd Edition, 1966, p. 387.
JP-A 226555/1985 partial translation.
JP-A 103862/1986 partial translation.
JP-A 281156/1986 partial translation.
Naruse Hideaki
Sato Kozo
Shimada Yasuhiro
Fuji Photo Film Co. , Ltd.
Wright Lee C.
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