Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1993-01-29
1994-05-24
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430504, 430506, 430544, 430957, G03C 146
Patent
active
053147928
ABSTRACT:
A photographic element and process useful therewith comprises at least two light sensitive silver halide layers sensitized to green light and having differing degrees of light sensitivity, comprising in association with a higher sensitivity layer a yellow dye forming DIR coupler which releases a development inhibitor containing a weak inhibitor fragment, and further comprising in association with the lower sensitivity layer a cyan dye forming DIR coupler with a timing group containing a strong inhibitor fragment which releases a precursor of the development inhibitor fragment.
REFERENCES:
patent: 4414308 (1983-11-01), Hamada
patent: 4782012 (1988-11-01), DeSelms et al.
patent: 4804619 (1989-02-01), Yamada et al.
patent: 4985336 (1991-01-01), Ichijima et al.
patent: 5006448 (1991-04-01), Szajewski et al.
Bowers Jr. Charles L.
Eastman Kodak Company
Kluegel Arthur E.
Letscher Geraldine
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