Shaped dental articles

US4300886A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Carlhans Suling · Odenthal, DE
• Gerhard Balle · Cologne, DE
• Bernd Leusner
• Hans-Hermann Schulz · Leichlingen, DE
• Michael Walkowiak · Leverkusen, DE

Key dates

• Filing date: Jun 9, 1980
• Grant date: Nov 17, 1981
• Expiry date: Jun 9, 2000

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S525/92
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to bead polymers, useful in the provision of dental articles and made by bead polymerizing a diamine-lengthened polyurethane and a methacrylate. Also included in the invention are the dental articles made using said bead polymers.