Patent · US Expired

Method for increasing the efficiency of surfactants with simultaneous suppression of lamellar mesophases and surfactants with an additive added thereto

US7468349B2 · kind B2 · utility

0Cited by

12References

18Claims

0Family size

Assignee

Forschungszentrum Jülich GmbH · DE

Inventors

Jürgen Allgaier · Aachen, DE
Lutz Willner · Jülich, DE
Dieter Richter · Jülich, DE
Britta Jakobs · Langenfeld, DE
Thomas Sottman · Cologne, DE
Reinhard Strey · Dormagen, DE

Key dates

Filing date	Aug 19, 2003
Grant date	Dec 23, 2008
Priority date	—
Expiry date	Sep 28, 2025

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC11D17/0026
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The invention relates to a method for increasing the efficiency of surfactants as well as to a method for suppressing lamellar mesophases in microemulsions. According to the invention, block copolymers having a water-soluble block A and a water-insoluble part B are admixed to the surfactants. The use of these substances as additives can considerably increase the efficiency of the surfactants. Moreover, the addition of the block copolymers suppresses the formation of undesired lamellar mesophases in microemulsions.

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