Process for producing particulate silicon encapsulated products
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United States of America Patent
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Oct 20, 1992
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N/A
app pub date -
May 6, 1991
filing date -
May 6, 1991
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Abstract
This invention relates to an anhydrous, liquid phase process for entrapping droplets of a silicon compound in an organic polymer which involves precharging a reactor at between about 50.degree. and about 80.degree. C. with a polymerization initiator and a non-polar solvent in which the silicon compound is soluble; adding to the precharged reactor, silicon compound under vigorous agitation and gradually introducing from about 50 to about 99 wt. %, based on silicon compound, of a polymerizably precipitatable, aliphatically unsaturated monomer at a controlled rate; continuously polymerizing the monomer component, under vigorous agitation with the silicon compound, at between about 50.degree. and about 165.degree. C. while maintaining a desired monomer level of not more than 10% in the reactor and recovering a solid particulate product of silicon droplets entrapped in said polymerized monomer.
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