Patent · US Expired

Silver halide photographic light-sensitive material containing a reducible fluorescent releasing compound

US5236804A · kind A · utility

2Cited by
5References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 26, 1991
Grant dateAug 17, 1993
Priority date—
Expiry dateFeb 26, 2011

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S430/156
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A silver halide photographic light-sensitive material comprises a support having thereon photographic component layers including a silver halide emulsion layer, wherein at least one of said photographic component layers contains a compound represented by the following formula: EQU A--(Time)n--FL--BL wherein A represents a group capable of releasing a group of --(Time)n--FL--BL upon reaction with an oxidation product of a developing agent; Time represents a timing group; FL represents a group which comes to emit fluorescence when a --BL is split off; BL represents a group capable of being split off; and n represents an integer of 0 or 1.

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