Silicone rubber powder and method for the preparation thereof
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United States of America Patent
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Nov 17, 1998
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N/A
app pub date -
Mar 17, 1997
filing date -
Mar 22, 1996
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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 --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.
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