Adhesive composition with decreased polarity upon polymerization

US7700668B2 · kind B2 · utility

Assignee

• 3M ESPE AG · DE

Inventors

• Christoph Thalacker · Weilheim, DE
• Reinhold Hecht · Kaufering, DE
• Gioacchino Raia · Türkenfeld, DE
• Manfred Ludsteck · Geretsried, DE
• Karsten Dede · Landsberg, DE

Key dates

• Filing date: Jul 14, 2004
• Grant date: Apr 20, 2010
• Expiry date: Apr 6, 2026

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K6/71
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to adhesive compositions that exhibit a significant decrease in polarity upon polymerization. More specifically, it relates to curable self etching dental adhesive compositions that can be applied to the tooth hard substance in one step and exhibit this decrease in polarity upon curing. In this respect a formulation is provided combining phosphoric acid esters bearing substituents with one ethylenically unsaturated moiety on the phosphorus atom and phosphoric acid esters bearing substituents with two or more ethylenically unsaturated moieties on the phosphorus atom.