Dental materials based on acrylic-ester phosphonic acids

US6900251B2 · kind B2 · utility

Assignee

• Ivoclar Vivadent AG · LI

Inventors

• Norbert Moszner · Eschen, LI
• Ulrich Salz · Gettorf, DE
• Frank Zeuner · Vaduz, LI
• Jörg Zimmermann · Winterthur, CH
• Volker Rheinberger · Vaduz, LI
• Jörg Angermann · Sargans, CH
• Urs Karl Fischer · Arbon, CH

Key dates

• Filing date: Jun 25, 2003
• Grant date: May 31, 2005
• Expiry date: Oct 29, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F30/02
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Acrylic ester phosphonic acids of general formula (I), stereoisomers thereof and mixtures of these, wherein n is 1 or 2, on the condition that for n=1 R1 has the meaning and for n=2 R1 has the meaning R2 is a C1 to C12 alkylene radical, C4-C8 cycloalkylene radical or C7 to C15 alkylene phenylene radical; R3 is hydrogen, a C1 to C5 alkyl radical or a C1 to C5 O-alkyl radical; and R4, R5, independently of each other, each stand for a C1 to C5 alkyl radical or a C1 to C5 O-alkyl radical.