The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 06, 2018
Filed:
Oct. 18, 2011
Simon Stelzig, Constance, DE;
Joachim E. Klee, Radolfzell, DE;
Andreas Facher, Gundetswil, CH;
Christoph Weber, Constance, DE;
Simon Stelzig, Constance, DE;
Joachim E. Klee, Radolfzell, DE;
Andreas Facher, Gundetswil, CH;
Christoph Weber, Constance, DE;
Dentsply International Inc., York, PA (US);
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 Rand Rare independent from each other and represent a hydrogen atom, a Calkyl group or a group —(CH)—Z, wherein Z is COOM, OPOM, POM, SOM, 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 Calkylene 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.