Dental compositions curable by ROMP

US6075068A · kind A · utility

Assignee

• ESPE Dental AG · DE

Inventor

• Peter Bissinger · Dießen, DE

Key dates

• Filing date: Sep 29, 1998
• Grant date: Jun 13, 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. %, based on (a)+(b)+(d), of polymerizable monomers and/or polymers, PA1 (b) 0 to 95 wt. %, based on (a)+(b)+(d), of fillers, PA1 (c) 1.0 to 15 wt. %, based on (a), of at least one initiator or one initiator system, PA1 (d) 0 to 95 wt. %, based on (a)+(b)+(d), of the usual auxiliaries, including pigments, radiopaque additives and/or thixotropy aids, characterized in that constituent (a) has a chemical structure such that partial or final curing of the dental composition can be effected by ring-opening metathesis polymerization. The dental compositions are characterized by a rapid polymerization process, leading to partially or fully cured materials, which display little volume shrinkage, little abrasion tendency and good mechanical properties.