EP 0000511 B1 19800723 - PHOTOGRAPHIC COLOUR DIFFUSION TRANSFER PROCESS
Title (en)
PHOTOGRAPHIC COLOUR DIFFUSION TRANSFER PROCESS
Publication
Application
Priority
DE 2733112 A 19770722
Abstract (en)
[origin: US4195992A] Non-diffusible dye-providing components which may be used in association with a silver halide emulsion layer and on development yield diffusible yellow dyes of improved light fastness are cyanalkyl aminoazo dyes of the formula <IMAGE> (I) in which A1 represents oxidizable carrier residue; D represents a heterocyclic or carbocyclic aromatic residue completing an azo dye; and 1, m and n are 0 or 1 such that 1+m+n=1; and r represents an integer of from 1 to 4.
IPC 1-7
IPC 8 full level
C07D 209/00 (2006.01); C07D 209/42 (2006.01); C09B 29/08 (2006.01); G03C 8/10 (2006.01)
CPC (source: EP US)
C07D 209/42 (2013.01 - EP US); C09B 29/08 (2013.01 - EP US); C09B 29/0823 (2013.01 - EP US); G03C 8/10 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
EP 0000511 A1 19790207; EP 0000511 B1 19800723; DE 2733112 A1 19790208; DE 2860058 D1 19801113; JP S5423527 A 19790222; US 4195992 A 19800401
DOCDB simple family (application)
EP 78100382 A 19780712; DE 2733112 A 19770722; DE 2860058 T 19780712; JP 8850378 A 19780721; US 92587078 A 19780718