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:
Apr. 23, 2024
Filed:
Feb. 08, 2019
Applicant:
Evonik Operations Gmbh, Essen, DE;
Inventors:
Michael Klostermann, Essen, DE;
Michael Ferenz, Essen, DE;
Kai-Oliver Feldmann, Essen, DE;
Marvin Jansen, Essen, DE;
Michelle Fluder, Dortmund, DE;
Sina Arnold, Bottrop, DE;
Petra Schnell, Essen, DE;
Assignee:
Evonik Operations GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 77/46 (2006.01); B01J 23/42 (2006.01); C08L 75/04 (2006.01); C08L 83/12 (2006.01);
U.S. Cl.
CPC ...
C08G 77/46 (2013.01); B01J 23/42 (2013.01); C08L 75/04 (2013.01); C08L 83/12 (2013.01); C08G 2110/0066 (2021.01); C08L 2203/14 (2013.01); C08L 2312/08 (2013.01);
Abstract
Crosslinked polyether siloxane block copolymers are obtained by reacting an alpha-omega hydrogen siloxane with at least one higher-order hydrogen siloxane and at least one polyether in the presence of a hydrosilylation catalyst. These are described, and also use thereof as additives for producing polyurethane foams, particularly mechanically foamed polyurethane foams.