Production of saturated siloxane polymers from aromatic monomers
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United States of America Patent
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May 22, 2001
Grant Date -
N/A
app pub date -
Nov 17, 1999
filing date -
Dec 3, 1998
priority date (Note) -
Expired
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Abstract
A method for producing a saturated siloxane polymer is provided. In one aspect, the method comprises hydrogenating an aromatic siloxane monomer by contacting it with hydrogen in a temperature of 100.degree. C. to 200.degree. C. and a hydrogen pressure of 1000 to 2000 psi for 1 to 6 hours in the presence of a hydrogenation catalyst to produce a hydrogenated siloxane monomer, and anionically polymerizing the hydrogenated siloxane monomer.
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