Photographic material containing 3-anilino-5-pyrazolylalkylcarbonate or arylcarbonate couplers

US4062683A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Marcel J. Monbaliu · Mortsel, BE
• Raphael K. Van Poucke · Berchem, BE
• Roger Henri Vrydaghs · Ekeren, BE
• Hans-Heinrich Credner
• Ernst Meier · Munich, DE

Key dates

• Filing date: May 27, 1976
• Grant date: Dec 13, 1977
• Expiry date: May 27, 1996

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C7/384
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

3-Anilino-5-pyrazolyl alkylcarbonates and arylcarbonates are described for use in silver halide color photography as color coupler precursor compounds containing no active methylene group so that they do not take part in undesirable side-reactions before color development.