Materials which can be cured by chain transfer polymerization

US10736820B2 · kind B2 · utility

Assignees

• Ivoclar Vivadent AG · LI
• Technische Universität Wien · AT

Inventors

• Norbert Moszner · Eschen, LI
• Iris Lamparth · Grabs, CH
• Urs Karl Fischer · Arbon, CH
• Kai Rist · Feldkirch, AT
• Peter Burtscher · Reutte, AT
• Robert Liska · Schleinbach, AT
• Christian Gorsche · Wien, AT
• Konstanze Seidler · Oberrohrbach, AT

Key dates

• Filing date: May 2, 2016
• Grant date: Aug 11, 2020
• Expiry date: Nov 28, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L81/06
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Radically polymerizable dental material, which contains at least one sulphonic acid ester of Formula 1: in which A is H, CN, an aromatic, cycloaliphatic, linear or branched aliphatic C1-C30-hydrocarbon radical or a combination thereof; X is COO— or —CON(R1)— or is absent; B is an aromatic, cycloaliphatic, linear or branched aliphatic C1-C30-hydrocarbon radical, or a combination thereof; R1 is hydrogen or an aromatic, cycloaliphatic, linear or branched aliphatic C1-C10-hydrocarbon radical; m is an integer from 1 to 6, n is an integer from 1 to 6 and p is an integer from 1 to 6; wherein m and p cannot simultaneously be greater than 1. The compounds of Formula 1 are active as chain transfer agents in radical polymerization.