Method for preparing an organo-silicon sol and materials obtained from such sol
US6624237B2 · kind B2 · utility
28Cited by
1References
22Claims
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Key dates
| Filing date | Jun 15, 2001 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Jun 15, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2217/425
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The method consists in hydrolyzing an initial volume Vsi of a precursor material comprising at least one polyalkoxysilane with a quantity of water such that where x H2O and x Si represent the number of moles of H2O and Si present, respectively, the concentration of the hydrolysate up to a volume substantially equal to the initial volume Vsi, leaving the concentrated hydrolysate until segregation into an aqueous phase and an organo-silicon phase, and recovery of the organo-silicon phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.