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:
Feb. 06, 2007
Filed:
Dec. 07, 2001
Susanne Rabe, Darmstadt, DE;
Wolfgang Eiselt, Darmstadt, DE;
Reinhard Lenk, Dresden, DE;
Hans-jürgen Richter, Dresden, DE;
Susanne Rabe, Darmstadt, DE;
Wolfgang Eiselt, Darmstadt, DE;
Reinhard Lenk, Dresden, DE;
Hans-Jürgen Richter, Dresden, DE;
Schutz-Dental GmbH, Rosbach, DE;
Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V., Munich, DE;
Abstract
The casting-mold material designed to manufacture casting molds used in casting high melting-point substances. The casting mold formed from a powder component containing magnesium oxide and aluminum oxide and a liquid component. The powder component additionally contains a calcium aluminate and an alkali fluoride or an earth alkali fluoride and the liquid component contains a polyelectrolyte and a basic component, the latter determining the liquid component pH value between 10 and 14. A fluid slip is prepared by mixing the powder and liquid components and is dried, hardened and sintered to produce a hollow mold.