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. 07, 2026
Filed:
Dec. 10, 2020
Q-t-siloxane-based polymeric materials with high siloxane ring content and method for preparing same
Empa Eidgenossische Materialprufungsund Forschungsanstalt, Dubendorf, CH;
EMPA EIDGENOSSISCHE MATERIALPRUFUNGSUND FORSCHUNGSANSTALT, Dubendorf, CH;
Abstract
The present invention pertains to a branched polymeric liquid poly siloxane material comprising non-organofunctional Q-type siloxane moieties and mono-organofunctional T-type siloxane moieties, as well as optionally tri-organofunctional M-type siloxane moieties and/or di-organofunctional D-type siloxane moieties characterized in that the polysiloxane material has a specified degree of polymerization, comprises a significant amount of four-membered Q2-type and/or Q3-type siloxane ring species relative to the total Q-type siloxane species, and is optionally functionalized at specific moieties. The present invention further pertains to methods for producing the polymeric liquid polysiloxane material as well as associated uses of the material.