The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 13, 2016
Filed:
Apr. 24, 2013
Applicant:
Evonik Industries Ag, Essen, DE;
Inventors:
Hans-Jürgen Köhle, Mainhausen, DE;
Ulrike Kottke, Linsengericht-Grossenhausen, DE;
Dirk Kuppert, Aschaffenburg, DE;
Dietmar Träumer, Kahl am Main, DE;
Kurt Seidel, Jossgrund, DE;
Axel Euler, Flieden, DE;
Assignee:
Evonik Degussa GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D 1/62 (2006.01); C11D 3/00 (2006.01); C11D 3/20 (2006.01); C11D 3/33 (2006.01);
U.S. Cl.
CPC ...
C11D 3/001 (2013.01); C11D 1/62 (2013.01); C11D 3/201 (2013.01); C11D 3/33 (2013.01);
Abstract
Reacting at least one tris-(2-hydroxyethyl)-amine fatty acid ester with dimethylsulfate at a molar ratio of dimethylsulfate to amine nitrogen of from 0.79 to 0.94 until the reaction mixture has a total amine number of from 7 to 20 mg KOH/g provides novel fabric softener active compositions with a low content of methanol, comprising from 65 to 98% by weight of tris-(2-hydroxyethyl)-methylammonium methylsulfate fatty acid esters and from 1 to 1500 ppm methanol.