Color photographic recording material developable by heat

US4877722A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Manfred Peters · Bad Schwartau, DE
• Manfred Becker · Leverkusen, DE
• Kaspar Wingender · Leverkusen, DE
• Thomas Kaluschke · Leichlingen, DE
• Sieghart Klotzer · Cologne, DE

Key dates

• Filing date: Dec 30, 1988
• Grant date: Oct 31, 1989
• Expiry date: Dec 30, 2008

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C1/49818
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A heat developable color photographic recording material is improved in its D.sub.min /D.sub.max ratio and sensitivity if it contains a silver halide emulsion in which the grains have at least three zones differing in their silver halide composition.