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:
Mar. 01, 2011
Filed:
Jun. 07, 2007
David D Farris, Marietta, OH (US);
Chauncey J Rinard, Newport, OH (US);
Mark D Leatherman, Elmsford, NY (US);
David D Farris, Marietta, OH (US);
Chauncey J Rinard, Newport, OH (US);
Mark D Leatherman, Elmsford, NY (US);
Momentive Performance Materials Inc., Albany, NY (US);
Abstract
An asymmetric siloxane is made by reacting a silicone having the formula MDM'where Mis RRHSiO, M′is RRHSiOand x is an integer 0≦x≦10 under selective hydrosilylation conditions in the presence of a precious metal hydrosilylation catalyst, with a first olefinic compound and in a second step, a monohydridosiloxane produced in the first step is reacted under hydrosilylating conditions with another olefinic compound different from the first olefinic compound.