Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1993-06-24
1995-02-14
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430503, 430549, 430555, 430558, G03C 146
Patent
active
053895045
ABSTRACT:
A photographic element including a support and first and second green-sensitive silver halide emulsion layers of different sensitivity, wherein the layer of higher sensitivity includes a two-equivalent magenta dye-forming coupler selected from the group consisting of a pyrazolone coupler having a structure according to formula I and a pyrazoloazole coupler having a structure according to formula II as set forth in the disclosure, and the layer of lower sensitivity includes a two-equivalent magenta dye-forming coupler selected from the group consisting of couplers defined by formulas I and II. The activity of the magenta dye-forming coupler present in the layer of lower sensitivity is less than the activity of the coupler present in the layer of higher sensitivity. The layers of higher and lower sensitivity do not comprise magenta couplers which are defined by the same formula.
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Masao et al., "Formation of Color Photographic Image", JP 61-273544, (1985), Abstract.
Derwent Publication Abstract, JP 62-194254, (1987).
Ling Hans G.
Michno Drake M.
Singer Stephen
Bowers Jr. Charles L.
Eastman Kodak Company
Kluegel Arthur E.
Letscher Geraldine
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