Silicone resins and process for synthesis
US6281285A · kind A · utility
21Cited by
3References
20Claims
0Family size
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Key dates
| Filing date | Jun 9, 1999 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Jun 9, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for hydrolyzing chlorosilanes having at least three chlorine atoms bonded to each silicon atom to form silicone resins. The method comprises adding at least one of hydridotrichlorosilane, tetrachlorosilane, or organotrichlorosilane to a two-phase mixture comprising a non-polar organic solvent, an aqueous phase comprising 0 to about 43 weight percent hydrochloric acid, and a surface active compound selected from the group consisting of alkylsulphonic acid hydrate, alkali metal salt of alkylsulphonic acid, arysulphonic acid hydrate, and alkali metal salt of arylsulphonic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.