Dual curing silicone, method of preparing same and dielectric soft-gel compositions thereof
US4528081A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1983 |
| Grant date | Jul 9, 1985 |
| Priority date | — |
| Expiry date | Oct 3, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L83/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Novel dual curing silicones are terminated with acrylic functional dialkoxy or diaryloxy silyl groups. They are prepared by condensation of a silanol terminated silicone with a silane represented by the formula ##STR1## where R.sup.3 is alkyl or aryl, R.sup.4 is H or C.sub.1-5 alkyl and R.sup.5 is alkylene, the ratio of silane to silanol silicone being between about 2.1 and 6.1. Compositions of the novel silicones with moisture cure catalysts, photoinitiators and optionally up to 70% trimethyl silyl terminated silicone oils, are both moisture and UV curable and produce soft gel or rubbery cured materials suitable for electronic potting applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.