Color photographic silver halide material

US5702877A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Heinrich Odenwalder · Leverkusen, DE
• Hans Langen · Frechen, DE
• Uwe Dahlhaus · Burscheid, DE
• Heinz-Dieter Schutz · Bensberg, DE

Key dates

• Filing date: Feb 26, 1996
• Grant date: Dec 30, 1997
• Expiry date: Feb 26, 2016

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C2200/40
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A colour photographic silver halide material with a support, at least one silver halide emulsion layer and at least one non-light sensitive layer applied thereto, wherein the silver halide emulsion layer contains at least one colour coupler, and wherein the silver halide emulsion layer or the non-light sensitive layer contains a compound of the formula (I) ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 mean hydrogen or an organic residue and PA1 n means 0 or an integer from 1 to 4 or PA1 R.sub.1 and R.sub.2 together, R.sub.1 and an adjacent residue R.sub.3 together or two adjacent residues R.sub.3 together form a carbocyclic or heterocyclic ring with 5 to 7 ring atoms or PA1 R.sub.1, R.sub.2 or R.sub.3 mean a bridging member by means of which two compounds of the formula (I) are attached together or PA1 R.sub.1, R.sub.2 or R.sub.3 are attached to a polymer via a bridging member, wherein at least one of the substituents R.sub.1, R.sub.2 and R.sub.3 is an organic residue, is distinguished by improved grain.