Self-etching dental materials based on (METH) acrylamide phosphates

US7622538B2 · kind B2 · utility

Assignee

• Ivoclar Vivadent AG · LI

Inventors

• Norbert Moszner · Eschen, LI
• Iris Lamparth · Grabs, CH
• Frank Zeuner · Vaduz, LI
• Ulrich Salz · Gettorf, DE
• Angela Mucke · Schlins, AT
• Jörg Zimmermann · Winterthur, CH
• Jörg Angermann · Sargans, CH
• Volker Rheinberger · Vaduz, LI

Key dates

• Filing date: Aug 25, 2005
• Grant date: Nov 24, 2009
• Expiry date: Mar 2, 2026

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K6/893
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Polymerizable dental material, characterized in that it contains at least one (meth)acrylamide phosphate of the following general formula (I):in which R1 is H or CH3; R2 is H or a C1-C4 alkyl radical or forms together with the nitrogen atom to which it is bonded and one or more atoms which belong to R3 or R3′ a heterocyclic ring; R3, R3′ independently of each other are a linear or branched aliphatic C1-C50 radical with a valency of m+n or p+n, an aromatic C6-C18 radical with a valency of m+n or p+n, or a cycloaliphatic, araliphatic or heterocyclic C3-C18 radical with a valency of m+n or p+n, wherein the carbon chains of the radical or radicals can be interrupted by O, S, CONR4, OCONH, or form together with one or more atoms which belong to R2 and the nitrogen atom, to which the R2 is bonded a heterocyclic ring, R3′ being H if p=0, and R4 being H, C1-C10 alkyl, C6-C12 aryl, C6-10 aralkyl or a bicylic C4-C12 radial; n is 1, 2, 3 or 4 if p=0, and is 1 or 2 if p ≠0; m is 1, 2, 3 or 4; p is 0, 1, 2, 3 or 4; x is 0 or S.