Patent · US Active

Hydrophobic fumed silica and silicone rubber materials containing the fumed silica

US8075862B2 · kind B2 · utility

1Cited by

7References

17Claims

0Family size

Assignee

EVONIK DEGUSSA GMBH · DE

Inventors

Juergen Meyer · Taunusstein, DE
Horst Zeizinger · Hanau, DE
Mario Scholz · Zöblitz, DE
Uwe Ellenbrand · Bad Bederkesa, DE

Key dates

Filing date	May 6, 2008
Grant date	Dec 13, 2011
Priority date	—
Expiry date	Aug 7, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2995
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a hydrophobic, fumed silica which is obtained by milling a fumed silica which has fixed dimethylsilyl and/or monomethylsilyl groups on the surface due to silanization; and to a process for the preparation of the silica according to the invention, and to silicone rubber materials containing the silica according to the invention.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.