Dental compositions based on ROMP oligomers and polymers

US6147136A · kind A · utility

Assignee

• ESPE Dental AG · DE

Inventor

• Peter Bissinger · Dießen, DE

Key dates

• Filing date: Sep 29, 1998
• Grant date: Nov 14, 2000
• Expiry date: Sep 29, 2018

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K6/887
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to dental compositions containing PA1 (a) 5 to 70 wt. %, relative to (a)+(b)+(d), of oligomers and/or polymers, PA1 (b) 0 to 95 wt. %, relative to (a)+(b)+(d), of fillers, PA1 (c) 0.1 to 3 wt. %, relative to (a), of at least one initiator or one initiator system, PA1 (d) 0 to 95 wt. %, relative to (a)+(b)+(d), of the usual adjuncts, including pigments, radiopaque additives and/or thixotropy auxiliaries, characterized in that 5 to 100 wt. % of component (a) comprises oligomers or polymers with the general formula ##STR1## or ##STR2## The dental compositions are suitable for producing filling materials, fixing cements, inlays, onlays, veneers, temporary crown and bridge materials, dentistry and impression materials. In compositions with radical curing, slight volume shrinkage occurs during curing, whereas in cement compositions, better mechanical properties are obtained.