Photographic dye diffusion transfer process

US4242435A · kind A · utility

Assignee

• AGFA-Gervaert AG · DE

Inventors

• Walter Puschel · Leverkusen, DE
• Hans Vetter · Kempten (Allgäu), DE
• Paul Marx · Corning, US

Key dates

• Filing date: Feb 9, 1979
• Grant date: Dec 30, 1980
• Expiry date: Feb 9, 1999

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C8/10
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

For the production of cyan and magenta images by the dye diffusion transfer process dye-providing compounds of the formula I are suitable ##STR1## in which A=an oxydizable carrier residue containing a diffusion-preventing radical; PA1 n= 0 or 1; PA1 P=a monocyclic aromatic radical; PA1 M=hydrogen, halogen, alkyl sulfonyl, aryl sulfonyl or sulfamoyl; PA1 Q=acylamino; PA1 R.sup.1 =hydrogen or a hydrolyzable radical.