Patent · US Expired

Chemically stable translucent apatite glass ceramic

US6200137A · kind A · utility

68Cited by

15References

21Claims

0Family size

Assignee

Ivoclar AG · LI

Inventors

Wolfram Höland · Schaan, LI
Martin Frank · Wittlich, DE
Helga Drescher · Feldkirch, AT
Volker Rheinberger · Vaduz, LI

Key dates

Filing date	Jun 12, 1998
Grant date	Mar 13, 2001
Priority date	—
Expiry date	Jun 12, 2018

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03C10/16
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

An apatite glass ceramic is described which is characterized by good chemical stability, a low expansion coefficient and high translucence, and is particularly suitable, by itself or together with glasses or other glass ceramics, as a veneering material for ceramic dental restorations.

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