Patent · US Expired

Photographic recording material

US4985351A · kind A · utility

10Cited by

5References

10Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Reinhart Matejec · Leverkusen, DE
Heinrich Odenwalder · Leverkusen, DE
Hans hlschlager · Bensberg, DE
Erich Wolff · Solingen, DE

Key dates

Filing date	Aug 25, 1989
Grant date	Jan 15, 1991
Priority date	—
Expiry date	Aug 25, 2009

Classification

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

Abstract

A color photographic silver halide material of the negative type, in which at least one silver halide emulsion layer contains as compound corresponding to the following formula EQU A--(Z).sub.n --F* (I) adsorbed on the silver halide grain, PA0 A being a grain-active attachment group corresponding to formulae IIa to IId: ##STR1## Z is a difunctional intermediate member, F* is a latent fogging agent group which becomes the active fogging agent (F) during color development and PA0 n=0 or 1, is distinguished by improved sensitivity.

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