Dental impression composition on functionalized polyethers

US6383279B1 · kind B1 · utility

Assignee

• ESPE Dental AG · DE

Inventors

• Gunther Eckhardt · Frieding, DE
• Erich Wanek · Kaufering, DE
• Guenther Lechner · Herrsching am Ammersee, DE
• Peter Bissinger · Dießen, DE
• Markus Mikulla · Cham, DE

Key dates

• Filing date: Sep 11, 1998
• Grant date: May 7, 2002
• Expiry date: Sep 11, 2018

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K6/90
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A dental impression composition comprises a polyether derivative functionalized via the hydroxyl groups of a polyether polyol with groups such as aziridine, epoxide and unsaturated substituents including (meth)acrylic, allyl, vinyl, vinyl ether or maleate groups, wherein the level of cyclic oligomeric polyethers is less than 5.0 weight percent.