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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.:

US 11965064 B1

PDFFull Text
Date of Patent:
Apr. 23, 2024

Filed:

Feb. 08, 2019

Crosslinked polyether-siloxane block copolymers and their use for producing polyurethane foams

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:

Grüneberg and Myers PLLC

Primary Examiner:

Irina S Zemel

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.

Find Patent Forward Citations

Klostermann, Michael. (2024). Crosslinked polyether-siloxane block copolymers and their use for producing polyurethane foams (U.S. Patent No. 11965064). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11965064

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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