Silicone rubber powder and method for the preparation thereof
US5837793A · kind A · utility
105Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1997 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Mar 17, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2383/12
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
There is disclosed a silicone rubber powder prepared from a curable silicone composition, said powder comprising a polyorganosiloxane drain having at least one silicon-bonded polyoxyalkylene group of the formula EQU --R.sup.1 (OR.sup.2).sub.m OR.sup.3 wherein R.sup.1 is an alkylene radical, R.sup.2 is an alkylene radical, R.sup.3 is selected from the group consisting of hydrogen and alkyl radicals and m is an integer having a value of 2 to 100. The rubber powder is preferably prepared by curing the above silicone composition to form a cured silicone rubber and then pulverizing the silicone rubber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.