Monoorganosiloxy containing siloxane fluids
US4348532A · kind A · utility
1Cited by
1References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 5, 1981 |
| Grant date | Sep 7, 1982 |
| Priority date | — |
| Expiry date | Oct 5, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Organosiloxane fluids containing polyfunctional silicon atoms are made by reacting a mixture of chlorosilanes containing a silane or disilane having at least 3 chlorine atoms with methanol in contact with certain quaternary ammonium halide catalysts. For example a fluid methylpolysiloxane was obtained by reacting a mixture of 30 weight percent methyltrichlorosilane and 70 weight percent dimethyldichlorosilane with methanol in contact with methyl pyridinium chloride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.