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:
Aug. 20, 1996
Filed:
Feb. 07, 1991
Heraeus Kulzer GmbH & Co. KG, Hanau, DE;
Abstract
In the filling of a buccal area tooth, wherein a polymerizable dental material containing a cross-linked bead poller is filled into the tooth and permitted to set, wherein the bead polymer has an average particle diameter of 2 to 100 .mu.m an inorganic filler content of to 50% by weight and a degree of swelling of 50 to 2000%, measured in THF, and is synthesized from A: 10 to 78% by weight of C.sub.1 -C.sub.2 -alkyl (meth)acrylate B: 5 to 10% by weight of C.sub.3 -C.sub.12 -alkyl (methacrylate) C: 1 to 30% by weight of cross-linker D: 10 to 75% by weight of an inorganic filler, and E: 0 to 30% by weight of at least one other ethylenically unsaturated monomer. The cross-linked bead polymer is new, has a solid consistency, is storable and is especially useful for filling teeth in the buccal area.