Global Patent Index - EP 1150160 A1

EP 1150160 A1 20011031 - A method for producing a silver halide photographic emulsion

Title (en)

A method for producing a silver halide photographic emulsion

Title (de)

Verfahren zur Herstellung einer photographischen Silberhalogenidemulsion

Title (fr)

Procédé pour la fabrication d'une émulsion photographique à l'halogénure d'argent

Publication

EP 1150160 A1 20011031 (EN)

Application

EP 01201513 A 20010425

Priority

  • EP 01201513 A 20010425
  • EP 00201472 A 20000425

Abstract (en)

The invention is directed to a method for producing a silver halide photographic emulsion comprising the step of reacting a water-soluble silver salt and at least one water-soluble halide salt containing chloride or bromide in aqueous solution in the presence of an organic Grain Growth Modifier (GGM) compound,-containing a halide X, which halide is not released in the form of an ion, to form light-sensitive silver halide grains having a silver halide content of a least 50 mole %, said grain growth modifier compound being water-soluble with a solubility > 4 mmole per litre, and being selected from the group of compounds with an aliphatic or cyclo-aliphatic backbone R to which is attached one or more halide groups and at least one polar group.

IPC 1-7

G03C 1/015; G03C 1/035; G03C 1/07

IPC 8 full level

G03C 1/07 (2006.01); G03C 1/005 (2006.01); G03C 1/015 (2006.01); G03C 1/035 (2006.01)

CPC (source: EP)

G03C 1/07 (2013.01); G03C 1/0051 (2013.01); G03C 1/0053 (2013.01); G03C 1/015 (2013.01); G03C 1/035 (2013.01); G03C 2001/03511 (2013.01); G03C 2001/03582 (2013.01); G03C 2200/03 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 1150160 A1 20011031

DOCDB simple family (application)

EP 01201513 A 20010425