Cobalt compound useful as catalyst for hydrosilylation, dehydrogenative silylation and crosslinking of silicone compositions
US11027267B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Dec 19, 2017 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Dec 19, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The subject of the present invention is the use, as hydrosilylation and/or dehydrogenative silylation catalyst, of a cobalt compound of formula (1): [CO(N(SiR3)2)x]y in which: —the R symbols, which are identical or different, represent a hydrogen atom or a hydrocarbon-based radical having from 1 to 12 carbon atoms, and preferably the R symbols, which are identical or different, are chosen from the group consisting of: a hydrogen atom, alkyl groups having from 1 to 8 carbon atoms and aryl groups having from 6 to 12 carbon atoms, —x=1, 2 or 3 and—y=1 or 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.