Siloxy phosphonate as stabilizing agent for polydiorganosiloxanes
US5710300A · kind A · utility
5Cited by
7References
14Claims
0Family size
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Key dates
| Filing date | Apr 11, 1997 |
| Grant date | Jan 20, 1998 |
| Priority date | — |
| Expiry date | Apr 11, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/32
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for stabilizing a mixture comprising a polydiorganosiloxane and an alkali metal. The method comprises contacting a polydiorganosiloxane and an alkali metal with a siloxy phosphonate described by formula ##STR1## where each R.sup.1, R.sup.2, and R.sup.3 is an independently selected hydrocarbon comprising one to about 12 carbon atoms, n=0 or 1, and x, y, and z are integers, where x=1 to 1000, y=0 to 1000, and z=0 to 1000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.