Dental composition

US9289360B2 · kind B2 · utility

Assignee

• Dentsply International Inc. · US

Inventors

• Joachim E. Klee · Radolfzell, DE
• Stefan Brugger · Radolfzell, DE
• Helmut Ritter · Wuppertal, DE
• Christoph Weber · Heidenheim, DE
• Oliver Elsner · Radolfzell, DE
• Mareike Bardts · Hilden, DE
• Andreas Facher · Gundetswil, CH
• Sven Pohle · Konstanz, DE

Key dates

• Filing date: Apr 17, 2014
• Grant date: Mar 22, 2016
• Expiry date: Apr 17, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2201/54
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

An aqueous dental glass ionomer composition comprising (a) a reactive particulate glass, and (b) a linear or branched polymer comprising acidic groups, which is reactive with the particulate glass in a cement reaction, whereby the linear or branched polymer comprising acidic groups has a polymer backbone and optionally pendant side chains, (c) optionally dispersed nanoparticles, and (d) optionally a low molecular compound, characterized in that the glass ionomer composition comprises—S.sub.xH groups, wherein x is an integer of from 1 to 6, which crosslink the particulate glass and/or the linear polycarboxylic acid and/or the optional dispersed nanoparticles and/or the optional low molecular compound.