High-whiteness hydrophobic precipitated silica with ultralow...

Details High-whiteness hydrophobic precipitated silica with ultralow... High-whiteness hydrophobic precipitated silica with ultralow...

2007-05-22

2007-05-22

Moore, Margaret G. (Department: 1712)

Coating processes

Particles, flakes, or granules coated or encapsulated

Inorganic base

C106S490000, C423S335000, C423S338000

Reexamination Certificate

active

11034834

ABSTRACT:
The invention relates to hydrophobicized precipitated silicas that possess an extremely high whiteness and extremely low moisture absorption. The hydrophobic precipitated silicas are prepared, inter alia, by coating with silicone oil and oxidative heat treatment.

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