Patent · US Expired

Process for preparing high-whiteness hydrophobic precipitated silica with ultralow moisture absorption

US7074457B2 · kind B2 · utility

15Cited by

16References

26Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Christian Panz · Wesseling, DE
Karl Meier · Bornheim, DE
Ralf Stoffels · Lechenich, DE
Helga Obladen · Zeven, DE
Ralf Schmoll · Gerolzhofen, DE

Key dates

Filing date	Aug 5, 2002
Grant date	Jul 11, 2006
Priority date	—
Expiry date	Apr 27, 2023

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01P2006/90
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A hydrophobic precipitated silica is prepared by a process comprising:

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