Patent · US Expired

Process for the silylation of inorganic oxides

US5851715A · kind A · utility

76Cited by

1References

4Claims

0Family size

Assignee

Wacker Chemie AG · DE

Inventors

Herbert Barthel · Herzogenaurach, DE
Mario Heinemann · Burghausen, DE
Franz Herrmann
August Altenbuchner · Oberndorf bei Salzburg, AT

Key dates

Filing date	Jun 18, 1997
Grant date	Dec 22, 1998
Priority date	—
Expiry date	Jun 18, 2017

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K9/08
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a process for the silylation of very finely divided inorganic oxides, in which the very finely divided inorganic oxides are treated with at least one silylating agent which is relatively nonvolatile in the temperature range of the overall process, with the proviso that the relatively nonvolatile silylating agent is admixed with the very finely divided inorganic oxides as a liquid, in the form of a very finely atomized aerosol. Furthermore, the invention relates to a highly apolar, pyrogenic silica prepared by this process.

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