(Polyene-polythiol) dental compositions curable with visible light

US5100929A · kind A · utility

Assignee

• ESPE Stiftung & Co. Produktions-und Vertriebs KG · DE

Inventors

• Peter Jochum · Meiningen, AT
• Oswald Gasser · Hanerau-Hademarschen, DE
• Erich Wanek · Kaufering, DE
• Rainer Guggenberger · Hanerau-Hademarschen, DE
• Klaus Ellrich · Herrsching am Ammersee, DE

Key dates

• Filing date: Oct 30, 1989
• Grant date: Mar 31, 1992
• Expiry date: Oct 30, 2009

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S522/908
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Photopolymerizable dental compositions are proposed which are curable with visible light and which apart from usual auxiliary substances and additives contain polymerizable monomers of the group of the poly-thiol compounds and of the group of the poly-ene compounds and a photoinitiator and which, in order to obtain a curing free from any smeary layer, contain at least 10% by weight poly-thiol compound(s), at least 10% by weight poly-ene compound(s) and 0.01 to 5% by weight of at least one acyl phosphine compound as photoinitiator. The compositions can advantageously be used as dental impression compositions.