Patent · US Expired

Composite material and method for the production thereof

US7294392B2 · kind B2 · utility

8Cited by

3References

7Claims

0Family size

Assignee

Vita Zahnfabrik H. Rauter GmbH & Co. KG · DE

Inventors

Stefan Aechtner · Annaberg-Buchholz, DE
Helga Hornberger · Koblenzer Straße, DE
Emil Nagel · Annaberg-Buchholz, DE
Norbert Thiel · Annaberg-Buchholz, DE

Key dates

Filing date	Mar 8, 2002
Grant date	Nov 13, 2007
Priority date	—
Expiry date	Mar 8, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/252
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A composite material with a porous inorganic-nonmetallic matrix and a second material, is characterized in that the porous inorganic-nonmetallic matrix has a bending strength of ≧40 MPa as measured according to ISO 6 872; the second material is an organic material which at least partly fills the pores of the porous matrix; and the composite material has a modulus of elasticity, E, of ≧25 GPa as measured according to ISO 10 477.

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