Patent · US Expired

Thermodevelopable photographic material with N-haloacetamide

US3957493A · kind A · utility

8Cited by
1References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 26, 1973
Grant dateMay 18, 1976
Priority date—
Expiry dateDec 26, 1993

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03C1/498
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A thermodevelopable light-sensitive material having a reduced frequency to fog formation by heat, comprising a support and at least one layer containing (a) an organic silver salt, (b) a catalytic amount of a light-sensitive silver halide or a compound capable of forming a light-sensitive silver halide by reaction with the organic silver salt (a), (c) a reducing agent (d) a binder, and (e) an N-haloacetamide. In order to increase the transparency of the thermodevelopable photographic layer of the material and the density of the image and to improve its preservability, a topcoating of polymer can be formed on the light-sensitive layer.

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