Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1993-08-20
1994-11-08
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430372, 430558, 430503, G03C 108, G03C 726, G03C 732
Patent
active
053626150
ABSTRACT:
A color-photographic recording material comprising at least one red-sensitive silver halide emulsion layer associated with a cyan coupler, at least one green-sensitive silver halide emulsion layer associated with a magenta coupler, and at least one blue-sensitive silver halide emulsion layer associated with a yellow coupler, at least one layer of the material containing a hydroquinone diether compound having the following formula I and optionally at least one compound having one of the formulae II, III, IV, V, SA and SB given in the description, characterized by increased light stability of the image colorants produced during chromogenic development, ##STR1## In the formula: R.sup.1 denotes alkyl, cycloalkyl or aryl;
REFERENCES:
patent: 4631252 (1986-12-01), Howell
Hagemann Jorg
Sobel Johannes
Weimann Ralf
Wolff Erich
AGFA AG
Bowers Jr. Charles L.
Letscher Geraldine
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