Monomer mixture for producing a dental material

US12186416B2 · kind B2 · utility

Assignee

• MÜHLBAUER TECHNOLOGY GMBH · DE

Inventors

• Stephan Neffgen · Hamburg, DE
• Swen Neander · Hamburg, DE

Key dates

• Filing date: May 13, 2022
• Grant date: Jan 7, 2025
• Expiry date: May 13, 2042

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K6/54
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to a monomer mixture for producing a dental material comprising: a. at least one base monomer M1 of the following formula 1: PG-S-A-S—[OOC—K—COO—S-A-S]n-PG (formula 1), where PG=a polymerizable group selected from OOC—CH—CH2 and —OOC—C(CH3)—CH2; S=a spacer group selected from an unbranched and a branched alkylene, which has C1-C10 carbon atoms and which can also contain oxygen or —OOC— in the carbon chain, or S is omitted; A=an aliphatic polycyclic group; K=an aliphatic acyclic or cyclic saturated or unsaturated unit with C1-C10 carbon atoms; and n=1-9; b. at least one base monomer M2 of the following formula 2: PG′—S′-A′—S′—PG′ (formula 2), where PG′=a polymerizable group selected from OOC—CH═CH2 and —OOC—C(CH3)═CH2; S′=a spacer group selected from an unbranched and a branched alkylene, which has C1-C10 carbon atoms and which can also contain oxygen or —OOC— in the carbon chain, or S′ is omitted; and A′=an aliphatic polycyclic group, wherein the mass ratio Y=m(M2)/m(M1) of the base monomers M2 to M1 is 0.9≤Y≤20. The invention also relates to the use of the monomer mixture, to a polymerizable dental material containing such a monomer mixture, to a polymerizabl…