Aqueous dental glass ionomer composition

US10610462B2 · kind B2 · utility

Assignee

• Dentsply Sirona Inc. · US

Inventors

• Caroline Renn · Singen, DE
• Oliver Elsner · Radolfzell, DE
• Maximilian Maier · Lemförde, DE
• Florian Szillat · Neukirchen-Vluyn, DE
• Joachim E. Klee · Radolfzell, DE
• Christoph Weber · Heidenheim, DE
• Uwe Walz · Konstanz, DE
• Christian Scheufler · Engen, DE
• Helmut Ritter · Wuppertal, DE
• Andrew Lichkus · York, US
• Xiaoming Jin · Shanghai, CN

Key dates

• Filing date: Apr 13, 2017
• Grant date: Apr 7, 2020
• Expiry date: Jun 27, 2037

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K6/889
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The present disclosure relates to an aqueous dental glass ionomer composition comprising a reactive particulate glass, a water-soluble, polymerizable polymer which is reactive with the particulate glass in a cement reaction, a hydrolysis-stable, water-soluble monomer having a single polymerizable double bond and optionally a carboxylic acid group or hydroxyl group; and a polymerization initiator system, wherein the polymerizable polymer is obtainable by a process comprising a step of polymerizing a mixture comprising a first polymerizable monomer comprising at least one optionally protected carboxylic acid group and a first polymerizable organic moiety, and optionally a second copolymerizable monomer comprising one or more optionally protected primary and/or secondary hydroxyl and/or amino group(s) and a second polymerizable organic moiety, for obtaining an water-soluble polymer; a step of coupling to the water-soluble polymer a compound having a polymerizable moiety and a functional group reactive with an optionally protected carboxylic acid group of repeating units derived from the first polymerizable monomer or an optionally protected hydroxyl and/or amino group of repeating uni…