Patent · US Active

Method for producing rheologically effective urea urethanes in organic salts

US8956452B2 · kind B2 · utility

2Cited by

3References

18Claims

0Family size

Assignee

BYK-CHEMIE GMBH · DE

Inventors

Ulrich Orth · Wesel, DE
Marc Eberhardt · Wesel, DE
Jürgen Omeis · Wulfen, DE
Christian Dams · Xanten, DE

Key dates

Filing date	Nov 11, 2009
Grant date	Feb 17, 2015
Priority date	—
Expiry date	Feb 2, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D5/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a method for producing a solution comprising urea urethanes and acting as a thixotropic agent, wherein at least two structurally different monohydroxy compounds are converted by an excess of toluoylene diisocyanate, forming monoisocyanate adducts having diamines in an ionic fluid, forming urea urethanes. The invention further relates to the use of the solution for thixotroping coating agents and solutions of urea urethanes in ionic fluids.

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