Global Patent Index - EP 0369235 B1

EP 0369235 B1 19941012 - Photographic-recording material.

Title (en)

Photographic-recording material.

Title (de)

Fotografisches Aufzeichnungsmaterial.

Title (fr)

Matériau d'enregistrement photographique.

Publication

EP 0369235 B1 19941012 (DE)

Application

EP 89120154 A 19891031

Priority

DE 3838493 A 19881112

Abstract (en)

[origin: JPH02181743A] PURPOSE: To obtain a recording material capable of regulating the sensitivity of a silver halide emulsion without making gradation flat by incorporating an anti-foggant represented by a prescribed formula into at least one silver halide emulsion layer. CONSTITUTION: This recording material contains an anti-foggant represented by formula I in at least one silver halide emulsion layer. In the formula I, A is H, a cation of a metallic atom or a nonmetallic group or a group bonding to N of the triazole by covalent bond and removed only during the processing of this material while releasing the triazole, R1 is H, optionally substd. 1-9C alkyl, 2-8C alkenyl, 6-10C aryl or SR3 , R2 is optionally substd. 1-9C alkyl, 2-BC alkenyl, 6-10C aryl, 5-10C heteroaryl, Cl, Br, -COOR3 , -COR3 or -OCOR3 and R3 is optionally substd. 1-9C alkyl, 2-8C alkenyl, 6-10C aryl, 5-10C heteroaryl.

IPC 1-7

G03C 1/34

IPC 8 full level

G03C 1/34 (2006.01)

CPC (source: EP US)

G03C 1/34 (2013.01 - EP US); G03C 1/346 (2013.01 - EP US)

Designated contracting state (EPC)

BE DE FR GB IT

DOCDB simple family (publication)

EP 0369235 A1 19900523; EP 0369235 B1 19941012; DE 58908497 D1 19941117; JP H02181743 A 19900716; US 5006457 A 19910409

DOCDB simple family (application)

EP 89120154 A 19891031; DE 58908497 T 19891031; JP 29377889 A 19891110; US 43492789 A 19891109