Patent · US Expired

Color photographic recording material and development process

US4571378A · kind A · utility

4Cited by

5References

7Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Wolfgang Sauerteig · Leverkusen, DE
Erwin Ranz · Leverkusen, DE
Heinz-Dieter Schutz · Bensberg, DE

Key dates

Filing date	Dec 10, 1984
Grant date	Feb 18, 1986
Priority date	—
Expiry date	Dec 10, 2004

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S430/158
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Improved photographic recording materials containing at least one silver halide emulsion layer with comparatively high sensitivity and at least one silver halide emulsion layer with comparatively low sensitivity. Color couplers and DIR compounds of differing reactivities are associated with these layers.

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