Photographic material with solvent having dielectric constant of

Details Photographic material with solvent having dielectric constant of Photographic material with solvent having dielectric constant of

1988-12-29

1990-09-04

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430551, 430552, 430553, 430556, 430557, G03C 734, G03C 736

Patent

active

049544322

ABSTRACT:
A silver halide light-sensitive photographic material comprising a support and provided thereon at least one silver halide emulsion layer containing a yellow dye-foming coupler having a formula [A] below and a high boiling organic solvent having a dielectric constant of not more than 6.0; ##STR1## wherein R.sub.1 represents a halogen atom or an alkoxy group having 1 to 4 carbon atoms; R.sub.2 represents a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group; R.sub.3 and R.sub.4 independently represent an alkyl group which is capable of making said coupler non-diffusible in the photographic material; X.sub.1 represents a tertiary butyl group or a p-alkoxy phenyl group; X.sub.2 represents a hydrogen atom or a group which is capable of being split off during color development; and X.sub.3 represents a linking group.

REFERENCES:
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patent: 4193802 (1980-03-01), Mukunoki et al.
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patent: 4614709 (1986-09-01), Sasaki et al.
patent: 4684606 (1987-08-01), Kirshnamurphy
patent: 4728599 (1988-03-01), Krishnamurphy
patent: 4731320 (1988-03-01), Sasaki etal.
patent: 4758501 (1988-07-01), Buckland et al.

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