Diacetylenic polyorganosiloxanes, intermediates therefor, and cured compositions prepared therefrom
US6271280A · kind A · utility
2Cited by
1References
29Claims
0Family size
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Key dates
| Filing date | Apr 19, 2000 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | Apr 19, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/50
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Intermediate compositions comprising ethynylorgano polyorganosiloxanes are prepared by hydrosilylation of an olefinic hydroxy compound followed by reaction with a propargyl halide, or by hydrosilylation of a diethynyl compound. The intermediate compositions may be oxidatively coupled to form poly(conjugated diacetylenic)polyorganosiloxanes. The latter may be cured thermally or by radiation to form cured compositions useful as release coatings or conformal coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.