Global Patent Index - EP 0580179 A1

EP 0580179 A1 19940126 - Silver halide photographic material.

Title (en)

Silver halide photographic material.

Title (de)

Fotografisches Silberhalogenidmaterial.

Title (fr)

Matériau photographique à l'halogénure d'argent.

Publication

EP 0580179 A1 19940126 (EN)

Application

EP 93111933 A 19930726

Priority

JP 21843392 A 19920724

Abstract (en)

A silver halide photographic material comprising a support and a silver halide emulsion layer provided thereon. The silver halide emulsion is prepared by nuclear formation, crystal growth and chemical sensitization. All or a part of the nuclear formation or the crystal growth is conducted in the presence of a hexa-coordinated cyano-complex to introduce the complex into crystal lattice of the silver halide. The chemical sensitization is conducted using a gold sensitizer. The silver halide emulsion is prepared using a synthetic polymer as a protective colloid in place of gelatin. Even though gelatin is used in preparation of the emulsion, the amount of gelatin is not more than 10 g per 1 mol of silver.

IPC 1-7

G03C 1/015; G03C 1/04; G03C 1/08; G03C 1/09

IPC 8 full level

G03C 1/015 (2006.01); G03C 1/04 (2006.01); G03C 1/047 (2006.01); G03C 1/07 (2006.01); G03C 1/08 (2006.01); G03C 1/09 (2006.01)

CPC (source: EP)

G03C 1/015 (2013.01); G03C 1/04 (2013.01); G03C 1/08 (2013.01); G03C 1/09 (2013.01)

Citation (search report)

  • [A] BE 750430 A 19701016 - FUJI PHOTO FILM CO LTD
  • [AD] US 3690888 A 19720912 - BACON ROBERT ELWIN, et al
  • [A] THE JOURNAL OF PHOTOGRAPHIC SCIENCE vol. 11, 1963, LONDON GB pages 140 - 144 H.W.WOOD 'photographic action of complex cyanides'

Designated contracting state (EPC)

DE FR GB NL

DOCDB simple family (publication)

EP 0580179 A1 19940126; EP 0580179 B1 19981223; DE 69322704 D1 19990204; DE 69322704 T2 19990506; JP 2847455 B2 19990120; JP H0643575 A 19940218

DOCDB simple family (application)

EP 93111933 A 19930726; DE 69322704 T 19930726; JP 21843392 A 19920724