Processes for making polysiloxazanes and using same for producing amino-functional polyorganosiloxanes
US11760839B2 · kind B2 · utility
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37References
21Claims
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Key dates
| Filing date | Oct 29, 2020 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Oct 29, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L83/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing a cyclic polysiloxazane is disclosed. The cyclic polysiloxazane may optionally be converted to an a-alkoxy-ou-amino-functional polysiloxane. The cyclic polysiloxazane or the a-alkoxy-oo-amino-functional polysiloxane, may be used as a capping agent for a silanol-functional polyorganosiloxane in a process to make an amino-functional polyorganosiloxane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.