Patent · US Active

Specially precipitated silicic acids for rubber applications

US8986442B2 · kind B2 · utility

1Cited by

20References

30Claims

0Family size

Assignee

EVONIK DEGUSSA GMBH · DE

Inventors

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

Key dates

Filing date	Jan 8, 2004
Grant date	Mar 24, 2015
Priority date	—
Expiry date	May 16, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01P2006/40
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

The present invention relates to precipitated silicas which have extremely low microporosity and high rubber activity, to a process for their preparation, and to their use as filler for rubber mixtures.

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