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. 21, 1989
Filed:
Aug. 11, 1988
Oswald Gasser, Seefeld, DE;
Klaus Ellrich, Worthsee, DE;
ESPE Stiftung & Co. Produktions- und Vertriebs KG, Seefeld, DE;
Abstract
A polymerizable, radiopaque dental composition including: one or more ethylenically unsaturated, polymerizable monomer and/or polymer, possible conventional fillers, pigments, initiators, activators, and thixotropic auxiliary material, as well as, in addition, a heavy-metal fluoride with very low solubility selected from the group consisting of complex heavy-metal fluorides having the general formula M.sup.II M.sup.IV F.sub.6, where M.sup.II is a calcium, strontium, or barium ion, and M.sup.IV is a titanium, zirconium, or hafniun ion. These filler compositions exhibit excellent X-ray visibility along with excellent optical properties.