Photographic recording material and a process for the production of photographic images

US4710454A · kind A · utility

Inventors

• Hans Langen · Frechen, DE
• Heinz-Dieter Schutz · Bensberg, DE
• Ubbo Wernicke · Hückeswagen, DE
• Wolfgang Himmelmann · Leverkusen, DE
• Gunter Renner · Bensberg, DE

Key dates

• Filing date: Jan 6, 1986
• Grant date: Dec 1, 1987
• Expiry date: Jan 6, 2006

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C7/396
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Photographic recording materials with improved processing stability are obtained by incorporating at least one phosphonic acid and at least one polyacrylic derivative.