Light-curing slips for the stereolithographic preparation of dental ceramics

US7927538B2 · kind B2 · utility

Assignees

• Ivoclar Vivadent AG · LI
• Technische Universität Wien · AT

Inventors

• Norbert Moszner · Eschen, LI
• Wolfgang Wachter · Eschen, LI
• Christoph Appert · Vaduz, LI
• Volker Rheinberger · Vaduz, LI
• Robert Liska · Schleinbach, AT
• Jürgen Stampfl · Wien, AT
• Johannes Patzer · Wien, AT

Key dates

• Filing date: Feb 27, 2009
• Grant date: Apr 19, 2011
• Expiry date: Feb 27, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/9661
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Slip based on a polyreactive binder, polymerization initiator and filler, which contains (A) 5-65 wt.-% polymerizable binder, (B) 0.001-1.0 wt.-% photoinitiator and (C) 35-90 wt.-% surface-modified ceramic and/or glass ceramic particles relative to the overall mass of the slip, and process for the preparation of ceramic mouldings by rapid prototyping processes using the slip.