Dental compositions which can be prepared and worked by the action of oscillations and method for the preparation thereof

US5244933A · kind A · utility

Assignee

• Thera Patent GmbH & Co KG Gesellschaft fur Industrielle Schutzrechte · DE

Inventors

• Stefan Eidenbenz · Zumikon, CH
• Klaus Ellrich · Herrsching am Ammersee, DE
• Oswald Gasser · Hanerau-Hademarschen, DE
• Rainer Guggenberger · Hanerau-Hademarschen, DE
• Andreas Iburg · Hamburg, DE
• Peter Koran · Weilheim, DE
• Michael Noack · Berlin, DE
• Reinhold Nowak · Adelshofen, DE
• Francois Roulet · Berlin, DE
• Klaus-Peter Stefan · Hanerau-Hademarschen, DE
• Werner Zollner · Eitting, DE

Key dates

• Filing date: Oct 11, 1991
• Grant date: Sep 14, 1993
• Expiry date: Oct 11, 2011

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S522/908
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Curable compositions are described which contain a binder and a high propion of fillers having a mean grain size of <50 .mu.m. The filler proportion of the curable compositions is so high that they cannot be used for the intended purpose because of their high viscosity However, they can be liquefied by exposure to oscillation in the frequency range of 20 Hz to 20 MHz with an amplitude of 1 .mu.m to 5 mm so that they are workable and can be employed for the intended purpose.