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. 01, 1983
Filed:
May. 27, 1981
Mitsubishi Mining & Cement Co., Ltd., Tokyo, JP;
Abstract
A process for making a porous sintered body of calcium phosphate having continuous and fine pores distributed uniformly throughout the porous body is provided which comprises the steps of: preparing a slurry of amorphous calcium phosphate having a molar ratio of calcium to phosphor ranging within 1.59 to 1.80; adding a foaming agent to said slurry; dipping a porous body of an organic material having continuous and fine void channels into said slurry prior to or after foaming said slurry to allow said slurry to adhere on the internal walls of said void channels; heating said porous body of said organic material at a temperature high enough for decomposing said organic material to varnish into smoke and concurrently for thermally converting said amorphous calcium phosphate into hydroxyapatite to form a network of hydroxyapatite; and sintering said network of hydroxyapatite to form said porous sintered body.