Patent · US Expired

Light sensitive color photographic material containing development inhibitor releasing coupler

US4186012A · kind A · utility

3Cited by

4References

3Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Heinrich Odenwalder · Leverkusen, DE
Walter Puschel · Leverkusen, DE
Robert J. Pollet · Vremde, BE
Erwin Ranz · Leverkusen, DE

Key dates

Filing date	Mar 2, 1978
Grant date	Jan 29, 1980
Priority date	—
Expiry date	Mar 2, 1998

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S430/158
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Non-diffusible thioether compounds capable of releasing, on reaction with color developer oxidation compounds, a diffusible silver halide development inhibitor without at the same time forming permanent dyes to any substantial extent are characterized by containing a group of the formula ##STR1## or its tautomeric form, wherein Z.sup.1 represents an electron attracting substituent and X represents an aliphatic, aromatic or heterocyclic group that if released together with the sulfur atom, forms a diffusible silver halide development inhibiting mercaptane.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.