Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1998-12-11
2000-03-28
Letscher, Geraldine
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430544, 430957, G03C 108, G03C 726, G03C 732
Patent
active
060430168
ABSTRACT:
This invention comprises a photographic element, comprising a support bearing at least one silver halide emulsion and at least one malonanilide yellow dye-forming DIR coupler of structure I, below: ##STR1## wherein: R.sup.1 and R.sub.2 are individually selected from the group consisting of halogen atoms and alkoxycarbonyl, aryloxycarbonyl, carbamoyl, carbonamido, sulfonamido, sulfamoyl, alkylsulfonyl, arylsulfonyl, sulfonyloxy, acyloxy and cyano groups and each is in the para position or in either meta position relative to the NH group of the anilide;
m and n are individually 0 or 1;
R.sub.3 and R.sub.4 are individually a halogen atom or an alkyl group and may be in the para position or either meta position relative to the NH group of the anilide;
X and Y are individually a halogen atom or an alkyl or alkoxy group; and
R.sub.5 is an alkyl group with 3 to 10 carbon atoms or a phenyl group.
REFERENCES:
patent: Re29379 (1977-08-01), Shiba et al.
Merkel Paul B.
Michno Drake M.
Poslusny Jerrold N.
Stewart Robert C.
Eastman Kodak Company
Letscher Geraldine
Rice Edith A.
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