Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 16, 2007
Patent Application Number
10623051
Date Filed
July 18, 2003
Patent Primary Examiner
Patent abstract
Methods of making hydrophobic, pyrogenically produced silica having a tamped density, of 55 to 200 g/l. Said silica is produced by hydrophobizing pyrogenically produced silica by reaction with a halogen free silane and then compacting it with means consisting of a roller compactor or a belt filter press. The silica may be used for the production of dispersions.
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