Polymerizable material

US5750590A · kind A · utility

Assignee

• HERAEUS KULZER GMBH · DE

Inventors

• Roland Schaefer · Friedrichsdorf, DE
• Detlef Heindl · Weinbach, DE
• Dieter Schodel · Wiesbaden, DE
• Oskar Nuyken · Munich, DE
• Ralf Bohner · Kriessern, CH
• Christoph Erdmann · Ulm, DE

Key dates

• Filing date: Jul 3, 1996
• Grant date: May 12, 1998
• Expiry date: Jul 3, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G65/22
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Polymerizable materials that contain "oxetanes" (trimethylene oxides) shrink only slightly when polymerized in the presence of a cationic polymerization catalyst. The materials are particular appropriate for coatings and for medical and dental purposes.