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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.:

US 10420712 B1

PDFFull Text
Date of Patent:
Sep. 24, 2019

Filed:

Jun. 30, 2015

Mill blanks based on a polymerized, fracture-tough prosthesis material

Applicant:

Heraeus Kulzer Gmbh, Hanau, DE;

Inventors:

Klaus Ruppert, Maintal, DE;

Alfred Hohmann, Schmitten, DE;

Stephan Dekert, Wehrheim, DE;

Assignee:

HERAEUS KULZER GMBH, Hanau, DE;

Attorney:

Norris McLaughlin, P.A.

Primary Examiner:

Nathan M Nutter

Int. Cl.
CPC ...
A61C 5/90 (2017.01); A61K 6/083 (2006.01); A61C 13/00 (2006.01); A61K 6/00 (2006.01); A61C 5/77 (2017.01); A61C 1/08 (2006.01); A61C 5/00 (2017.01); A61C 7/02 (2006.01); A61C 7/10 (2006.01); A61C 7/18 (2006.01); A61C 8/00 (2006.01); A61C 13/08 (2006.01); A61D 1/00 (2006.01); A61F 2/30 (2006.01);
U.S. Cl.
CPC ...
A61K 6/083 (2013.01); A61C 1/084 (2013.01); A61C 5/007 (2013.01); A61C 5/77 (2017.02); A61C 5/90 (2017.02); A61C 7/02 (2013.01); A61C 7/10 (2013.01); A61C 7/18 (2013.01); A61C 8/0048 (2013.01); A61C 13/0004 (2013.01); A61C 13/0022 (2013.01); A61C 13/08 (2013.01); A61C 13/082 (2013.01); A61D 1/00 (2013.01); A61F 2/30942 (2013.01); A61K 6/0005 (2013.01); A61K 6/0008 (2013.01); A61F 2002/30952 (2013.01);
Abstract

The subject matter of the invention is a three-dimensional molded body, in particular a milling blank, made of a polymerizable prosthetic material, which is suitable for milling machining by means of CNC and/or CAD/CAM, having a fracture toughness of greater than or equal to 1.9 Mpa·mand a fracture work of greater than or equal to 900 J/m. The milling blank preferably comprises core-shell particles modified by an elastic phase and is optionally based on a content of urethane (meth)acrylate polymerized into the polymer. Moreover, a subject matter of the invention is the use of the milling blanks for the production of at least parts of dental prosthetic parts, such as a prosthesis, artificial teeth, bridges, or of orthodontic appliances and instruments in medical field.

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