EP 0600561 B1 19990324 - Yellow couplers having ionizable and/or solubilizing aaryloxy coupling-off groups.
Title (en)
Yellow couplers having ionizable and/or solubilizing aaryloxy coupling-off groups.
Title (de)
Gelbkuppler mit ionisierbare und/oder auflösbare Aryloxy freisetzbare Gruppen
Title (fr)
Copulants jaune ayant groupes libérés aryloxy ionisables et/ou solubilisants
Publication
Application
Priority
US 98538492 A 19921204
Abstract (en)
[origin: EP0600561A1] Novel yellow dye-forming couplers, and photographic elements, emulsions and processes for developing images utilizing the novel couplers, are disclosed. The novel couplers include (a) an acyl acetanilide in which said acyl group includes a multicyclic carbon center attached to the carbonyl moiety, and (b) an aryloxy coupling-off group at the coupling position of the acyl acetanilide, said coupling-off group having at least one substituent which is an ionizable group or a solubilizing group.
IPC 1-7
IPC 8 full level
G03C 7/36 (2006.01); G03C 7/305 (2006.01)
CPC (source: EP)
G03C 7/30535 (2013.01)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0600561 A1 19940608; EP 0600561 B1 19990324; DE 69324109 D1 19990429; DE 69324109 T2 19991021; JP H06208208 A 19940726
DOCDB simple family (application)
EP 93203352 A 19931201; DE 69324109 T 19931201; JP 30430993 A 19931203