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Title:
METHOD FOR PURIFICATION OF SILICONE RESIN
Document Type and Number:
Japanese Patent JP2006342308
Kind Code:
A
Abstract:

To provide a method for effective purification of a silicone resin with a reduced content of alkali metal ion as an impurity.

The invention relates to the method for purification of the silicone resin comprising treatment of the silicone resin containing alkali metal ions such as sodium ion, potassium ion, cesium ion, etc., as the impurities of the silicone resin, etc., obtained by an equilibrium reaction using alkali metal catalyst. The treatment comprises contact of the silicone resin with a solid basic absorbent such as powders of aluminum silicate, powders of silic acid, powders of magnesium silicate, etc.


Inventors:
NAKANISHI KOJI
Application Number:
JP2005171432A
Publication Date:
December 21, 2006
Filing Date:
June 10, 2005
Export Citation:
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Assignee:
DOW CORNING TORAY CO LTD
International Classes:
C08G77/34
Domestic Patent References:
JPH08319352A1996-12-03
JPH0848877A1996-02-20
JP2002146024A2002-05-22
JP2001213965A2001-08-07
JP2005336421A2005-12-08
JP2002356617A2002-12-13
JP2002348473A2002-12-04
JP2003261576A2003-09-19
JP2003253122A2003-09-10
JPH06298940A1994-10-25
JPH06298897A1994-10-25