Patent · US Active

Silica and also epoxy resins

US8480846B2 · kind B2 · utility

0Cited by

7References

10Claims

0Family size

Assignee

EVONIK DEGUSSA GMBH · DE

Inventors

Juergen Meyer · Taunusstein, DE
Mario Scholz · Zöblitz, DE
Pia Buckel · Bruchköbel, DE
Andreas Hille · Renningen, DE

Key dates

Filing date	Feb 10, 2009
Grant date	Jul 9, 2013
Priority date	—
Expiry date	Jul 28, 2029

Classification

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

Abstract

Fumed silicon dioxide powder in the form of aggregated primary particles having a BET surface area of 175±15 m2/g and a thickening effect, based on the BET surface area, of greater than 18 mPas g/m2 is hydrophobicized with polydimethylsiloxane. This hydrophobic fumed silica has a BET surface area of 110±25 m2/g. It can be used in epoxy resins. These epoxy resins in turn can be used as adhesives.

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