Patent · US Active

Precipitated silicas with particular pore size distribution

US7608234B2 · kind B2 · utility

8Cited by

37References

18Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Oleg Stenzel
Hans-Detlef Luginsland · Recklinghausen, DE
Stefan Uhrlandt · Niederkassel, DE
Andre Wehmeier · Rheine, DE

Key dates

Filing date	Sep 8, 2006
Grant date	Oct 27, 2009
Priority date	—
Expiry date	Apr 21, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01P2006/19
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

Precipitated silicas useful, for example, as fillers in elastomer mixtures or vulcanizates have a particularly broad pore size distribution of the pores with a pore diameter smaller than that of the maximum of the derivative of the pore volume distribution function, and have simultaneously very low microporosity and high rubber activity.

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