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:
Nov. 14, 2017
Filed:
Aug. 08, 2013
Applicant:
Wacker Chemie Ag, Munich, DE;
Inventors:
Holger Rautschek, Nuenchritz, DE;
Marco Kauschke, Glaubitz, DE;
Assignee:
WACKER CHEMIE AG, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 8/89 (2006.01); C08G 77/06 (2006.01); A61K 8/891 (2006.01); C08L 83/04 (2006.01); A61K 8/55 (2006.01); A61Q 5/02 (2006.01); A61K 8/86 (2006.01); A61K 8/892 (2006.01); A61K 8/06 (2006.01); C08G 77/16 (2006.01); A61K 8/37 (2006.01); A61Q 5/12 (2006.01); C08K 5/521 (2006.01);
U.S. Cl.
CPC ...
A61K 8/891 (2013.01); A61K 8/06 (2013.01); A61K 8/37 (2013.01); A61K 8/55 (2013.01); A61K 8/86 (2013.01); A61K 8/892 (2013.01); A61Q 5/02 (2013.01); A61Q 5/12 (2013.01); C08G 77/16 (2013.01); C08L 83/04 (2013.01); A61K 2800/21 (2013.01); A61K 2800/805 (2013.01); C08K 5/521 (2013.01);
Abstract
A method for producing aqueous silicone emulsions containing highly viscous polyorganosiloxanes having a low content of cyclic siloxanes in several steps; the addition of acidic compounds intended to catalyze polycondensation of the polyorganosiloxanes being carried out only after an emulsion is produced in the first step exclusively with nonionogenic emulsifiers, without impairing the rate of the polycondensation reaction.