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. 17, 2009
Filed:
Apr. 13, 2006
Applicant:
Christian Ochs, Burghausen, DE;
Inventor:
Christian Ochs, Burghausen, DE;
Assignee:
Wacker Chemie AG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G 77/06 (2006.01); C08G 77/04 (2006.01); C08G 77/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for preparing organopolysiloxanes bearing triorganosiloxy groups of defined structure involves reacting, in a first step, organopolysiloxanes having SiH groups with water in the presence of a metal of transition group VIII or compounds thereof as a catalyst, optionally in the presence of cocatalysts, to provide Si—OH group-containing intermediates, and, in a second step, reacting the intermediates bearing SiOH groups with silanes which have a group reactive toward SiOH groups. The reaction proceeds rapidly in high yield and with few byproducts.