Method of synthesizing siloxane monomers and use thereof
US9884879B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Sep 30, 2016 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Sep 30, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/80
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for preparation and polymerization of siloxane monomers of Formula I is presented. The synthesis includes the selective reaction between silanol containing unit and alkoxy containing units in the presence of basic catalyst. The siloxane monomers of the invention can be used for preparation of siloxane polymers with good flexibility and cracking threshold, and functional sites, useful for applications requiring low metal content in semiconductor industry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.