Silyl phosphonate as stabilizing agent for polydiorganosiloxanes
US5481014A · kind A · utility
8Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 1995 |
| Grant date | Jan 2, 1996 |
| Priority date | — |
| Expiry date | May 8, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/5419
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for stabilizing a mixture comprising polydiorganosiloxane and an alkali metal. The method comprises contacting a silyl phosphonate described by formula R.sup.1.sub.a (OH).sub.b (OSiR.sup.2.sub.3).sub.3-a-b P.dbd.O, where each R.sup.1 and R.sup.2 is an independently selected hydrocarbyl radical comprising less than about twelve carbon atoms, a=1 or 2, b=0 or 1, and a+b=1 or 2, with a polydiorganosiloxane and an alkali metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.