Patent · US Expired

Alkali silicate glass

US6306784A · kind A · utility

45Cited by

6References

14Claims

0Family size

Assignee

Ivoclar AG · LI

Inventors

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

Key dates

Filing date	Jun 9, 2000
Grant date	Oct 23, 2001
Priority date	—
Expiry date	Jun 9, 2020

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03C17/02
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Alkali silicate glasses are described which, in view of their good chemical stability and their optical properties and processing properties, are particularly suitable as a coating or veneering material for ceramic dental frameworks and hence for the production of all-ceramic dental restorations such as crowns or bridges.

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