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:
Mar. 22, 2022
Filed:
May. 26, 2020
Evonik Operations Gmbh, Essen, DE;
Wilfried Knott, Essen, DE;
Horst Dudzik, Essen, DE;
Dagmar Windbiel, Essen, DE;
Philippe Favresse, Ratingen, DE;
Michael Fiedel, Essen, DE;
André Brötzmann, Essen, DE;
Frauke Henning, Essen, DE;
Jan Caßens, Datteln, DE;
Michael Ferenz, Essen, DE;
Evonik Operations GmbH, Essen, DE;
Abstract
Branched SiOC-linked polyethersiloxanes have the following formula (I) where Ris an alkyl radical having 1 to 4 carbon atoms or a phenyl radical, but preferably 90% of the radicals Rare methyl radicals; b has a value of from 1 to 10; a has a value of from 1 to 200, preferably 10 to 100, a value of from 3 to 70 when b is ≥1 and ≤4, or a value of from 3 to 30 when b is >4; and Rdenotes identical or different polyether radicals, but at least one radical Ris a structural element radical of formula (II): where p=at least 2, preferably p=2-6, particularly preferably p=3.