Patent · US Expired

Light-sensitive material containing emulsified substances

US4106940A · kind A · utility

2Cited by

7References

3Claims

0Family size

Assignee

AGFA-Gervaert AG · DE

Inventors

Hans Langen · Frechen, DE
Erwin Ranz · Leverkusen, DE
Johannes Eibl
Walther Wolf · Leverkusen, DE

Key dates

Filing date	Oct 3, 1975
Grant date	Aug 15, 1978
Priority date	—
Expiry date	Oct 3, 1995

Classification

Technology area (CPC G)Physics
CPC primaryG03C7/3885
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A light-sensitive material containing in emulsified form photographic additives and a process for introducing these photographic additives in emulsified form into photographic hydrophilic colloid layers with at least one N-alkylphtalimide derivative of the formula ##STR1## in which R.sub.1 and R.sub.2 are as defined hereinafter; the material having improved stability properties.

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