Patent · US Expired

Silver halide photographic light-sensitive materials

US4390618A · kind A · utility

20Cited by
4References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 15, 1982
Grant dateJun 28, 1983
Priority date
Expiry dateMar 15, 2002

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S430/156
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A silver halide photographic light-sensitive material is described comprising a layer containing a coupler compound represented by formula (I) EQU A--B (I) wherein A represents a residue of a compound capable of undergoing a coupling reaction with an oxidation product of an aromatic primary amine developing agent, by the removal of one hydrogen atom from the active position of said compound, and B represents a group which is released by the coupling reaction and exhibits a development accelerating function.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.