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. 20, 2017
Filed:
Aug. 18, 2014
Applicant:
Momentive Performance Materials Inc., Waterford, NY (US);
Inventors:
Karthikeyan Sivasubramanian, Bangalore, IN;
Patricia Pike Anderson, Williamstown, MA (US);
Vivek Khare, Bangalore, IN;
Assignee:
MOMENTIVE PERFORMANCE MATERIALS INC., Waterford, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G 77/08 (2006.01); B01J 31/02 (2006.01);
U.S. Cl.
CPC ...
C08G 77/08 (2013.01); B01J 31/0251 (2013.01); B01J 2231/14 (2013.01);
Abstract
The present technology provides compositions, methods, and processes to form polysiloxanes. In one aspect, the present technology provides a process for the ring opening polymerization of a cyclosiloxane comprising contacting a cyclosiloxane with a bicyclic guanidine compound. The guanidine-containing compounds useful in the ring opening reaction include a fused ring structure comprising a guanidine functional group as part of the fused ring.