Photographic recording material

US4939079A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Erich Wolff · Solingen, DE
• Hans Langen · Frechen, DE
• Wolfgang Himmelmann · Leverkusen, DE
• Gunter Helling · Siegburg, DE

Key dates

• Filing date: Feb 15, 1989
• Grant date: Jul 3, 1990
• Expiry date: Feb 15, 2009

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C1/30
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Photographic recording materials of which the binder layers consist of protein-like binders which have been hardened in the usual way show reduced susceptibility to the effect of formaldehyde when--in addition to the usual hardeners--low molecular weight monofunctional compounds which are capable of reacting with free primary amino groups of the binder under casting and/or storage conditions without causing additional hardening are allowed to act on the binder.