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:
Aug. 25, 2020
Filed:
Nov. 02, 2016
Applicant:
Basf SE, Ludwigshafen am Rhein, DE;
Inventors:
Lothar Engelbrecht, Berlin, DE;
Wolfgang Peter, Altlussheim, DE;
Andreas Gernandt, Ludwigshafen, DE;
Clemens Auschra, Freiburg, DE;
Ralf Knischka, Neustadt, DE;
Reiner Kranwetvogel, Hassloch, DE;
Assignee:
BASF SE, Ludwigshafen am Rhein, DE;
Primary Examiner:
Int. Cl.
CPC ...
C08G 77/18 (2006.01); C08G 77/08 (2006.01); C08G 77/38 (2006.01); C08G 77/14 (2006.01); C09D 183/04 (2006.01);
U.S. Cl.
CPC ...
C08G 77/18 (2013.01); C08G 77/08 (2013.01); C08G 77/14 (2013.01); C08G 77/38 (2013.01); C09D 183/04 (2013.01);
Abstract
The invention relates to a process for preparing oligo- or polyalkylene ether-modified polysiloxanes by transesterification of alkoxy-functionalized polysiloxanes with OH-terminated oligo- or polyalkylene ethers in the presence of an alkanesulfonic acid as catalyst. Oligo- or polyalkylene ether-modified polydimethylsiloxanes obtainable through this process are suitable as defoamers, as wetting agents, and as additives in coating material formulations.