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:
Dec. 12, 2006
Filed:
Oct. 20, 2003
Georg Berger, Zepernick, DE;
Renate Gildenhaar, Berlin, DE;
Andrea Spitzer, Berlin, DE;
BAM Bundesanstalt fur Materialforschung und-prufung, Berlin, DE;
Abstract
The present invention relates to a glass used as a sintering aid for a resorbable molded body containing calcium phosphate as well as to a method for manufacturing said molded body. According to the invention, the material is β-tricalcium phosphate and the glass has a chemical composition of 68–78% by weight SiO, 5–12% by weight MgO and 12–27% by weight NaO. The aforesaid molded body is manufactured by melting said glass, grinding it until a grain size Dof 0.7–2 μm is achieved and mixing it with β-tricalcium phosphate having a grain size Dof 1–7.5 μm, giving the mixture the desired shape and producing the molded body by sintering said mixture at between 1,150 and 1,350° C., wherein the grain size of β-TCP must not be smaller than that of the glass.