Patent · US Expired

Efficient matting agents based on precipitated silicas

US7488382B2 · kind B2 · utility

2Cited by

4References

28Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Juergen Schubert · Meckenheim, DE
Robert Kuhlmann · Lechenich, DE
Hans-Dieter Christian · Alzenau, DE

Key dates

Filing date	Sep 8, 2003
Grant date	Feb 10, 2009
Priority date	—
Expiry date	Mar 17, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2993
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A precipitated silica characterized by

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