Global Patent Index - EP 0753793 B1

EP 0753793 B1 19991117 - Photographic silver halide developer composition

Title (en)

Photographic silver halide developer composition

Title (de)

Entwicklerzusammensetzung für photographische Silberhalogenidmaterialien

Title (fr)

Composition de révélateur pour des matériaux photographiques à l'halogénure d'argent

Publication

EP 0753793 B1 19991117 (EN)

Application

EP 95110914 A 19950712

Priority

EP 95110914 A 19950712

Abstract (en)

[origin: EP0753793A1] The present invention provides a black-and-white aqueous alkaline photographic developer composition and a method of processing an exposed photographic silver halide element comprising the steps of developing by means of a developer comprising a silver halide developing agent and treating the developed element with a fixer composition, wherein the developer composition comprises a developing agent, a superadditive auxiliary developing agent, an antifogging agent, an antioxidant compound, a sequestering agent and a combination of three different buffering agents, wherein the three buffering agents are represented by carbonate, borate and phosphate compounds.

IPC 1-7

G03C 5/305; G03C 5/30

IPC 8 full level

G03C 5/30 (2006.01); G03C 5/305 (2006.01)

CPC (source: EP)

G03C 5/305 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 0753793 A1 19970115; EP 0753793 B1 19991117; DE 69513391 D1 19991223; DE 69513391 T2 20000727; JP H09101601 A 19970415

DOCDB simple family (application)

EP 95110914 A 19950712; DE 69513391 T 19950712; JP 17784096 A 19960708