Patent · US Expired

Color photographic recording material

US4173479A · kind A · utility

4Cited by

8References

3Claims

0Family size

Assignee

AGFA-Gervaert AG · DE

Inventors

Erwin Ranz · Leverkusen, DE
Joachim W. Lohmann · Odenthal, DE
Heinz-Dieter Schutz · Bensberg, DE

Key dates

Filing date	Jan 31, 1978
Grant date	Nov 6, 1979
Priority date	—
Expiry date	Jan 31, 1998

Classification

Technology area (CPC G)Physics
CPC primaryG03C2007/3034
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Improved sensitivity and improved interimage effects are obtained in a multilayer color-photographic recording material having two red-sensitive, two green-sensitive and a blue-sensitive silver halide emulsion layer as well as a yellow filter layer, the more sensitive red-sensitive and the more sensitive green-sensitive layers forming a comparatively more sensitive layer unit arranged further away from the support than each of the less sensitive green-sensitive and the less sensitive red-sensitive layer but nearer to the support than the yellow filter layer underneath the blue-sensitive layer; an additional chloride-containing silver halide emulsion layer of comparatively low sensitivity containing a non-diffusible DIR compound of low reactivity is arranged within the comparatively more sensitive layer unit between the red-sensitive and the green-sensitive layers.

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