Patent Number: 6,251,574

Title: Color photographic developer concentrate

Abstract: A one-part, multi-phase colour developer concentrate having an aqueous phase and an organic phase, wherein the organic phase is constituted by a carboxylic acid amide or urea derivative which is liquid at room temperature and the concentrate contains at least one compound of the formulae (I), (II) or (III) as antioxidant: ##STR1## in which R.sub.1 means alkyl, R.sub.2 means alkyl or aryl and n means 0 or 1 and at least one of the residues R.sub.1 and R.sub.2 contains at least one --OH, --COOH or --SO.sub.3 H group; ##STR2## in which R.sub.3 means an alkyl or acyl group; ##STR3## in which R.sub.4 means an alkylene group optionally interrupted by O atoms and m means a number of at least 2, is in particular suitable for the production of a colour developer solution for silver halide materials having an elevated AgCl content.

Inventors: Hubsch; Thomas (Koln, DE)

Assignee: Agfa-Gevaert

International Classification: C07C 239/08 (20060101); C07C 239/12 (20060101); C07C 309/00 (20060101); C07C 309/14 (20060101); C07C 239/00 (20060101); C07C 259/00 (20060101); C07C 259/06 (20060101); G03C 7/413 (20060101); G03C 5/26 (20060101); G03C 7/30 (20060101); G03C 007/413 ()

Expiration Date: 06/26/2018