Patent · US Expired

Nonionic fluent pearl luster dispersions

US4654163A · kind A · utility

18Cited by

6References

6Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Jochen M. Quack · Eppstein, DE
Alwin Reng · Kelkheim, DE
Werner Skrypzak · Liederbach, DE
Walter Kunz · Oberwil, CH

Key dates

Filing date	Mar 26, 1985
Grant date	Mar 31, 1987
Priority date	—
Expiry date	Mar 26, 2005

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC11D1/74
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Pearl luster dispersions comprising a fatty acid glycol ester, a fatty acid alkanolamide, a nonionic surfactant of the formula EQU R.sub.5 --O--(A--O).sub.m --(B--O).sub.n --R.sub.6 where R.sub.5 denotes C.sub.8 -C.sub.30 -alkyl or alkenyl, R.sub.6 denotes hydrogen or a group of the formula --CH.sub.2 O--R.sub.7, R.sub.7 denotes C.sub.1 -C.sub.10 -alkyl or alkenyl, A and B, independently of each other, denote a group of the formula --C.sub.2 H.sub.4 -- or --C.sub.3 H.sub.6 --, and m and n each denote a number from 1 to 30, and water to 100%. Pearl luster dispersions based on this nonionic surfactant have the advantage that they are fluent even at temperatures below 20.degree. C.

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