Global Patent Index - EP 0652474 B1

EP 0652474 B1 19961002 - Colour photographic recording material

Title (en)

Colour photographic recording material

Title (de)

Farbfotografisches Aufzeichnungsmaterial

Title (fr)

Matériau photographique couleur d'enregistrement

Publication

EP 0652474 B1 19961002 (DE)

Application

EP 94116952 A 19941026

Priority

DE 4338104 A 19931108

Abstract (en)

[origin: EP0652474A1] A colour-photographic silver-halide material of the negative type in which at least one silver-halide emulsion layer contains a compound of the formula A-B-(T1)m-(COUP-D)-(T2)n (I), where A is a ballast radical, B is the radical of a compound which reacts during development with elimination of (T1)m-(COUP-D)-(T2)n, T1 and T2 are time-control groups which can be eliminated during development, m and n are 0 or 1, COUP is the radical of a tetraequivalent coupler, and D is a group with affinity to silver, is distinguished by improved sensitivity.

IPC 1-7

G03C 7/32; G03C 7/305

IPC 8 full level

G03C 7/00 (2006.01); G03C 7/305 (2006.01); G03C 7/32 (2006.01)

CPC (source: EP US)

G03C 7/30541 (2013.01 - EP US)

Designated contracting state (EPC)

BE DE FR GB NL

DOCDB simple family (publication)

EP 0652474 A1 19950510; EP 0652474 B1 19961002; DE 4338104 A1 19950511; DE 59400767 D1 19961107; JP H07181646 A 19950721; US 5441857 A 19950815

DOCDB simple family (application)

EP 94116952 A 19941026; DE 4338104 A 19931108; DE 59400767 T 19941026; JP 29362994 A 19941104; US 32984794 A 19941027