Color photographic material

US5731138A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Gunter Helling · Siegburg, DE
• Beate Weber · Leichlingen, DE
• Markus Geiger · Langenfeld, DE

Key dates

• Filing date: Jan 26, 1996
• Grant date: Mar 24, 1998
• Expiry date: Jan 26, 2016

Classification

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

Abstract

A color photographic material which contains in at least one layer a stabilizer of the formula (I) ##STR1## in which R.sub.1 means H, alkyl, aryl or acyl; PA1 R.sub.2 means --OR.sub.1, --COOH, alkyl, aryl, dialkylamino, acylamino, sulphonamido, acyl or sulphonyl; PA1 R.sub.3, R.sub.4, R.sub.5 and R.sub.6 independently of one another mean H, halogen or a residue as R.sub.2 or two adjacent residues --OR.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 may together complete a 5- to 8-membered ring, and a polymer insoluble in water as pH 5 and soluble at pH 11 with an acid value of 30 to 300 and a Tg of.ltoreq.40.degree. C. of the formula (II) ##STR2## in which R.sub.7 mutually independently mean hydrogen, C.sub.1 -C.sub.4 alkyl or CH.sub.2 --COOH, PA1 R.sub.8 means alkyl, aryl or aralkyl PA1 a means 80 to 95 mol. % and PA1 b means 5 to 20 mol. %, is distinguished by improved stability of the image dyes.