Polymer materials with silane-based transfer reagents

US10781223B2 · kind B2 · utility

Assignees

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

Inventors

• Norbert Moszner · Eschen, LI
• Jörg Angermann · Sargans, CH
• Urs Karl Fischer · Arbon, CH
• Iris Lamparth · Grabs, CH
• Yohann Catel · Sevelen, CH
• Robert Liska · Schleinbach, AT

Key dates

• Filing date: Jul 2, 2018
• Grant date: Sep 22, 2020
• Expiry date: Dec 21, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F230/085
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Radically polymerizable silane according to the general formula I in which R1 is a linear or branched aliphatic C1-C9-alkyl radical, phenyl or alkylated phenyl radical, R2, R3 independently of each other in each case are absent or are a linear or branched aliphatic C1-C20-alkylene radical, which can be interrupted by S or O atoms, R4, R5, R6 independently of each other in each case are —Cl, —O—CH3, —O—C2H5, —CH3 or —C2H5, X is CH2 or O, Y is absent, or is O or NR′, wherein R′ is H or a C1-5-alkyl radical, and Z is absent, or is O, NR″, —CO—O—, —CO—NR″—, —O—CO—O—, —O—CO—NR″—, or —NR″—CO—NR″—, wherein R″ is H or a C1-5-alkyl radical and wherein the radicals R2 and R3 cannot be absent at the same time and Z is absent if R2 or R3 is absent, polycondensates based thereon and fillers surface-modified therewith.