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:
Oct. 20, 2026
Filed:
Sep. 07, 2020
Wacker Chemie Ag, Munich, DE;
Wacker Chemie AG, Munich, DE;
Abstract
A method of preparing alkyl functionalized polysiloxane, comprising: I) reacting silane oligomer with hydroxyl-terminated polysiloxane in the presence of Catalyst 1, and II) reacting the product of Step (I) with an endcapper in the presence of Catalyst 2. This method could flexibly adjust the polymerization degree and viscosity of the desired long-chain alkyl functionalized polysiloxane for different application fields and introduce multiple alkyl functional groups and further functional groups to obtain bifunctionalized polysiloxane, moreover this method could greatly reduce the proportion of undesired cyclosiloxanes in the equilibrium product and the reaction is mild, easy to operate and environmentally friendly.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile