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:
Jul. 28, 2020
Filed:
Jul. 18, 2018
Applicant:
Dow Silicones Corporation, Midland, MI (US);
Inventors:
Assignee:
Dow Silicones Corporation, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 77/08 (2006.01); C08G 77/398 (2006.01); B01J 31/12 (2006.01);
U.S. Cl.
CPC ...
C08G 77/398 (2013.01); B01J 31/124 (2013.01); B01J 2231/323 (2013.01); B01J 2531/828 (2013.01); C08G 77/08 (2013.01);
Abstract
A platinum organosiloxane complex is prepared by a process including combining A) a platinous halide; B) a ketone; C) an enone additive distinct from any other starting materials or rearrangement products thereof; and D) a polyorganosiloxane having, per molecule, 2 to 4 silicon bonded terminally unsaturated hydrocarbon groups having from 2 to 6 carbon. The platinum organosiloxane complex prepared by the process is useful as a hydrosilylation catalyst.