Global Patent Index - EP 0691569 A1

EP 0691569 A1 19960110 - Photographic emulsion with improved sensitivity

Title (en)

Photographic emulsion with improved sensitivity

Title (de)

Photographische Emulsion mit verbesserter Empfindlichkeit

Title (fr)

Emulsion photographique à sensibilité améliorée

Publication

EP 0691569 A1 19960110 (EN)

Application

EP 95420173 A 19950628

Priority

  • FR 9408439 A 19940704
  • FR 9413053 A 19941026

Abstract (en)

The invention concerns a monodisperse emulsion with improved sensitivity. The emulsion of the invention is sensitized with sulphur and gold, and a quantity of thiocyanate of between 0.1 and 1.0 mole per mole of silver is added thereto. A sensitisation level equivalent to that of a corresponding polydisperse emulsion can be obtained.

IPC 1-7

G03C 1/09

IPC 8 full level

G03C 1/015 (2006.01); G03C 1/025 (2006.01); G03C 1/08 (2006.01); G03C 1/09 (2006.01)

CPC (source: EP)

G03C 1/09 (2013.01)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0691569 A1 19960110; FR 2722009 A1 19960105; FR 2722009 B1 19970214; JP H0843977 A 19960216

DOCDB simple family (application)

EP 95420173 A 19950628; FR 9413053 A 19941026; JP 16739395 A 19950703