Patent · US Expired

Surface modified synthetic, silicatic filler, a process for its production and its use

US4704414A · kind A · utility

56Cited by

4References

18Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Dieter Kerner · Midland Park, US
Peter Kleinschmit · Hanau, DE
Alan Parkhouse · Wesseling, DE
Siegfried Wolff · Bornheim, DE

Key dates

Filing date	Aug 12, 1985
Grant date	Nov 3, 1987
Priority date	—
Expiry date	Aug 12, 2005

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01P2004/84
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention is directed to the modification of synthetic, silicatic fillers with water insoluble sulfur containing organosilicon compounds. For this purpose, the fillers are converted into an aqueous suspension and treated with the organosilicon compounds, optionally in the presence of an emulsifier. The thus modified filler in vulcanized rubber mixtures results in a clear improvement in the industrial properties of the rubber.

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