Magenta dye forming coupler for photographic material

US5100772A · kind A · utility

Assignee

• EASTMAN KODAK COMPANY · US

Inventors

• Tienteh Chen · Penfield, US
• Stanley W. Cowan · Rochester, US
• Edward Schofield · Penfield, US
• Ping-Wah Tang · Rochester, US

Key dates

• Filing date: Dec 24, 1990
• Grant date: Mar 31, 1992
• Expiry date: Dec 24, 2010

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C7/3275
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A magenta dye-forming coupler for photographic material is disclosed. The coupler is a polymer derived from a monomer having the formula: ##STR1## R.sub.1 represents hydrogen or a substituent, X represents hydrogen or a group capable of being released by a coupling reaction with an oxidized aromatic primary amine developing agent, PA0 Z represents the atoms necessary to complete a heterocyclic ring, PA0 L represents a divalent linking group, PA0 A represents --CONH--, --COO--, --O--, --OOC--, --NHCO--, --NHCONH--, --NHSO.sub.2 --, or a substituted or unsubstituted phenylene group, PA0 D represents --O--, --NR"--, or --CONR"--, PA0 R represents a substituted or unsubstituted aliphatic or a substituted or unsubstituted aromatic substituent, having at least 6 carbon atoms, PA0 R' represents H, substituted or unsubstituted lower alkyl of from 1 to 4 carbon atoms, carboxyl, or halogen, and PA0 R" represents substituted or unsubstituted: alkyl, aryl, or acetyl.