Polyfunctional organosiloxanes, compositions containing same, and methods for the preparation thereof
US11905375B2 · kind B2 · utility
1Cited by
59References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 4, 2019 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Feb 19, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2170/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyfunctional organohydrogensiloxane and method for its preparation using a boron containing Lewis acid as catalyst is disclosed. A clustered functional organosiloxane may be prepared by a method comprising functionalizing the polyfunctional organohydrogensiloxane. The polyfunctional organohydrogensiloxane and the clustered functional organosiloxane are useful in curable compositions. The polyfunctional organohydrogensiloxane may be used in a release coating composition. The clustered functional organosiloxane may be used in an adhesive composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.