US Patent 7537833 Pyrogenically produced silicon dioxide powder and dispersion thereof
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Hauke Jacobsen0
Kai Schumacher0
Matthias Rochnia0
Naruyasu Ishibashi0
Ralph Brandes0
Takeyoshi Shibasaki0
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Patent abstract
Pyrogenically produced silicon dioxide powder in the form of aggregates of primary particles having a BET surface area of 90±15 m2/g, wherein the aggregates display an average surface area of 10000 to 20000 nm2, an average equivalent circle diameter (ECD) of 90 to 130 nm and an average circumference of 1000 to 1400 nm.
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US Patent 07537833 Pyrogenically produced silicon dioxide powder and dispersion thereof US Patent 7537833 Pyrogenically produced silicon dioxide powder and dispersion thereof
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Patent Number
075378330
Patent Number
75378330
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Patent Jurisdiction
Patent Number
075378330
Date of Patent
May 26, 2009
0Patent Application Number
110556050
Date Filed
February 11, 2005
0Official Website
Patent Primary Examiner
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US Patent 07537833 Pyrogenically produced silicon dioxide powder and dispersion thereof
Infobox
Is a
Patent jurisdiction
Patent number
07537833
Date of patent
May 26, 2009
Patent application number
11055605
Date Filed
February 11, 2005
Patent primary examiner
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