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:
Jun. 13, 2023
Filed:
Aug. 24, 2018
Applicant:
Wacker Chemie Ag, Munich, DE;
Inventor:
Marko Prasse, Glaubitz, DE;
Assignee:
WACKER CHEMIE AG, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 77/08 (2006.01); C08G 77/16 (2006.01); C08G 77/00 (2006.01);
U.S. Cl.
CPC ...
C08G 77/08 (2013.01); C08G 77/16 (2013.01); C08G 77/80 (2013.01);
Abstract
Branched organopolysiloxanes are prepared from alkoxysilanes and polydiorganosiloxanes over two stages by basic equilibration and subsequent acid-catalyzed reaction with water to the desired degree of condensation, wherein the entire process does not require the use of additional organic solvent, no wastewater is generated and the process is particularly suitable for the controlled production of so-called DT resins.