Hydrophobic silica

Details Hydrophobic silica Hydrophobic silica

2007-10-16

2007-10-16

Metzmaier, Daniel S. (Department: 1712)

Coating processes

Particles, flakes, or granules coated or encapsulated

Inorganic base

C428S405000, C252S363500, C516S100000

Reexamination Certificate

active

10623051

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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