Color photographic recording material

US7144691B2 · kind B2 · utility

Assignee

• Ciba Specialty Chemicals Corporation · US

Inventors

• Stéphane Biry · Village-Neuf, FR
• Francesco Fuso · Therwil, CH
• Andreas Kramer · Zürich, CH

Key dates

• Filing date: Feb 25, 2003
• Grant date: Dec 5, 2006
• Expiry date: Apr 5, 2023

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C7/3005
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A color photographic material which contains on a support at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler, at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler, together with customary non-light-sensitive layers, characterized in that at least one layer contains a compound of formula (I) or (II) wherein the R1-radicals and R2-radicals are preferably methyl; and wherein the compounds of formula (II) are preferably (III) R3 is a radical —CH(CH3)—X—D, wherein X is phenylene. D is a group (IV) or a group —C(O)—C1–C18alkyl or a group —O—CH2—CH(OH)—CH2—NR12R13, with R12 and R13 being C1–C18alkyl or together form a 4 to 8 membered ring as defined in claim 1, or D is a group —O—CH2—CH(OH)—CH2—N(R12)—CH2—CHOH—CH2—O—or —O—CH2—CH(OH)—CH2—W—CH2—CHOH—CH2—O— with W being a divalent amino group (—N(C1–C18alkyl)−), a polyamine residue, a polyethyleneimine residue or a polyoxyalkyleneamine residue; Z and Z′ are for example C1–C12alkyl, C3–C12alkenyl, C3–C12alkenyl, C5–C8cycloalkyl, or Z and Z′ together bivalent gro…