Silver halide light-sensitive element

Details Silver halide light-sensitive element Silver halide light-sensitive element

2006-12-26

2006-12-26

Letscher, Geraldine (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

C430S502000, C430S503000, C430S543000, C430S551000, C430S552000, C430S553000, C430S567000, C430S631000

Reexamination Certificate

active

07153640

ABSTRACT:
A silver halide light sensitive photographic element comprising a support bearing at least one cyan image forming hydrophilic colloid layer comprising cyan image dye forming coupler of Formula I and a saturated alcoholic high boiling solvent or mixture of solvents of Formula II:Formula Iwherein R1is an alkyl group, R2is a ballast group, and X is hydrogen or a coupling-off group;Formula IIwherein R3represents an alkyl group, and R4and R5individually represent hydrogen or an alkyl group, or R3and R4may be joined to form a cycloalkyl group, provided that the total number of carbon atoms contained in R3, R4, and R5is at least 10 and that the alcoholic solvent or mixture of solvents of Formula II is liquid at 37° C.

REFERENCES:
patent: 2322027 (1943-06-01), Jelley et al.
patent: 4731320 (1988-03-01), Sasaki et al.
patent: 5429913 (1995-07-01), Merkel et al.
patent: 5726003 (1998-03-01), Zengerle et al.
patent: 6221571 (2001-04-01), Zengerle et al.
patent: 6680165 (2004-01-01), Poslusny et al.

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