Color photographic recording material containing a coupler releasing a photographically active compound

US5021330A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Peter Bergthaller · Bensberg, DE
• Thomas Krüger · Leverkusen, DE
• Rudolf Stolzenburg · Goldkronach, DE
• Dirk Hubner · Cologne, DE

Key dates

• Filing date: Jul 18, 1990
• Grant date: Jun 4, 1991
• Expiry date: Jul 18, 2010

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S430/158
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

High edge effects and interimage effects are obtained when DIR couplers of formula I are used in color photographic silver halide materials. ##STR1## In Formula I, R.sup.1 denotes alkyl, for example C.sub.4 H.sub.9 -t, aryl, for example p-alkoxyphenyl, NH-aryl or NH--NH--R.sup.3 ; PA1 R.sup.2 denotes H, halogen, e.g. chlorine, alkoxy, alkylthio or NH--R.sup.4 ; PA1 R.sup.3 and R.sup.4 denote acyl; PA1 X denotes the residue of a photographically active compound containing a monocyclic 1,2,3- or 1,2,4-triazole ring, PA1 TIME denotes a linking member and PA1 n denotes 0 or 1.