Global Patent Index - EP 0443530 A3

EP 0443530 A3 19920205 - PHOTOGRAPHIC MATERIAL AND PROCESS COMPRISING WASH-OUT NAPHTHOLIC COUPLER

Title (en)

PHOTOGRAPHIC MATERIAL AND PROCESS COMPRISING WASH-OUT NAPHTHOLIC COUPLER

Publication

EP 0443530 A3 19920205 (EN)

Application

EP 91102367 A 19910219

Priority

US 48360190 A 19900222

Abstract (en)

[origin: EP0443530A2] A photographic naphtholic coupler comprising a ballast free naphtholic coupler moiety containing a -CONH2 group in the 2- position and a ballasted coupling-off group in the 4- position enables good wash out of dye formed upon oxidative coupling from a photographic material during processing of such a photographic material. Such a naphtholic coupler is useful in photographic silver halide materials and processes.

IPC 1-7

G03C 7/305

IPC 8 full level

G03C 7/305 (2006.01); G03C 7/34 (2006.01)

CPC (source: EP)

G03C 7/30523 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IT LI LU NL SE

DOCDB simple family (publication)

EP 0443530 A2 19910828; EP 0443530 A3 19920205; EP 0443530 B1 19960410; CA 2036041 A1 19910823; DE 69118569 D1 19960515; DE 69118569 T2 19961121; JP H04356042 A 19921209

DOCDB simple family (application)

EP 91102367 A 19910219; CA 2036041 A 19910208; DE 69118569 T 19910219; JP 2884391 A 19910222