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 8802744 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 12, 2014

Filed:

Aug. 03, 2012
Applicants:

Wilfried Knott, Essen, DE;

Horst Dudzik, Essen, DE;

Frauke Henning, Essen, DE;

Frank Schubert, Neukirchen-Vluyn, DE;

Michael Ferenz, Essen, DE;

Roland Hubel, Essen, DE;

Inventors:

Wilfried Knott, Essen, DE;

Horst Dudzik, Essen, DE;

Frauke Henning, Essen, DE;

Frank Schubert, Neukirchen-Vluyn, DE;

Michael Ferenz, Essen, DE;

Roland Hubel, Essen, DE;

Assignee:

Evonik Degussa GmbH, Essen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 7/08 (2006.01); C08L 75/04 (2006.01); C09K 15/32 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides polysiloxane-polyether copolymers comprising at least one polyether moiety, characterized in that there is at least one polyether moiety capped with at least one —O—C(O)—O—R″ unit where R″ is identical or different alkyl moieties, a process for preparation thereof and use thereof, especially for polyurethane foam production.


Find Patent Forward Citations

Knott, Wilfried. (2014). Alkyl carbonate endcapped polyether siloxanes and preparation thereof (U.S. Patent No. 8802744). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8802744

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

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