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:
Nov. 16, 2021
Filed:
Feb. 12, 2019
Henkel Ag & Co. Kgaa, Duesseldorf, DE;
Christian Kropf, Hilden, DE;
Alexander Schulz, Essen, DE;
Anna Klemmer, Duesseldorf, DE;
Regina Palkovits, Aachen, DE;
Peter Hausoul, GE Landgraaf, NL;
Lukas Kipshagen, Aachen, DE;
Henkel AG & Co. KGaA, Duesseldorf, DE;
Abstract
An anionic surfactant of general formula (I) in which n and m are, independently of one another, numbers from 0 to 17 and 2<n+m<20, and Xis a charge-balancing cation. The invention also relates to a production method by way of: the acid-catalysed reaction of 2,5-bis(hydroxymethyl) tetrahydrofuran with an alkene having 5 to 22 C atoms in equimolar amounts, at an increased temperature; subsequent sulphation with a sulphating agent; and optional neutralisation by a subsequent reaction with XOHor XCO, where Xis an alkali metal cation or a group NRRR, in which R, Rand Rare, independently of one another, hydrogen, an alkyl group with 1 to 6 C atoms, or a hydroxyalkyl group with 2 to 6 C atoms. Detergents or cleaning agents containing—the surfactant, and the use of same to improve the performance of the detergents or cleaning agents, are also disclosed.