Dental cement composition

US10117810B2 · kind B2 · utility

Assignee

• Dentsply International Inc. · US

Inventors

• Simon Stelzig · Radolfzell, DE
• Joachim E. Klee · Radolfzell, DE
• Andreas Facher · Gundetswil, CH
• Christoph Weber · Heidenheim, DE

Key dates

• Filing date: Oct 18, 2011
• Grant date: Nov 6, 2018
• Expiry date: Mar 25, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F122/385
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Dental cement composition comprising (i) a particulate filler reactive with a polyacid in a cement reaction; (ii) a water-soluble polymerizable compound of the following formula (1), AXn (1) wherein A is a linker group containing at least n nitrogen atoms and optionally one or more acidic groups, X are moieties containing a polymerizable double bond and forming an amide bond with a nitrogen atom of A, which X may be the same or different and are represented by the following formula (2) wherein R1 and R2 are independent from each other and represent a hydrogen atom, a C1-6 alkyl group or a group —(CH2)m—Z, wherein Z is COOM, OPO3M2, PO3M2, SO3M, and M is independently a hydrogen atom or a metal atom, and m is an integer of from 0 to 6, L is a bond or a C1-6 alkylene group; and n is an integer of at least 1; provided that at least one X cannot be a (meth)acryl group; and (iii) an initiator system; optionally a polyacidic polymer having polymerizable double bonds; and optionally water.