Patent · US Expired

High-whiteness, non-heat-treated hydrophobic precipitated silica

US6899951B2 · kind B2 · utility

35Cited by

13References

26Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Christian Panz · Wesseling, DE
Ralf Schmoll · Gerolzhofen, DE
Michael Kempf · Rodenbach, DE
Mario Scholz · Zöblitz, DE

Key dates

Filing date	Aug 5, 2002
Grant date	May 31, 2005
Priority date	—
Expiry date	Feb 18, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2995
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention provides a hydrophobic precipitated silica having the following properties:The present invention also provides methods for making and using the hydrophobic precipitated silica and articles and compositions which include the same.

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