Patent · US Expired

Color photographic silver halide material

US6218097A · kind A · utility

14Cited by

5References

10Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Peter Bell · Neunburg vorm Wald, DE
Ralf Buscher · Lohmar, DE
Lothar Rosenhahn · Neunburg vorm Wald, DE
Heinz Wiesen · Euskirchen, DE
Ralf Wirowski · Neunburg vorm Wald, DE

Key dates

Filing date	Aug 30, 1999
Grant date	Apr 17, 2001
Priority date	—
Expiry date	Aug 30, 2019

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S430/158
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A colour photographic silver halide material having a support and at least one photosensitive silver halide emulsion layer which contains a magenta coupler of the formula (I) ##STR1## in which R.sub.1 to R.sub.3, a, b, c and X have the meaning stated in the description, which material contains a DIR coupler of the formula (II) ##STR2## in which R.sub.6 to R.sub.11 have the meaning stated in the description, is distinguished by improved processing stability.

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