Fibrous apatite and method for producing the same

Details Fibrous apatite and method for producing the same Fibrous apatite and method for producing the same

D - Textiles, Paper

01

F

18/576

D01F 9/08 (2006.01)

Patent

CA 1261568

Abstract of the Disclosure The present invention provides a fibrous product of apatite comprising one or more apatites selected from a group of apatites represented by the general formula: M10(ZO4)6X2 wherein M represents Ca, Ba, Mg, Sr, Pb, Cd and Fe, ZO4 represents PO4, AsO4 and VO4, and X represents F, Cl and OH. This fibrous product of apatite has many applications such as uses for medical treatment, large scale microorganism cultivating media and others, and particularly it is useful as apatite implant materials having a good compatibility with living organism and superior workability. The fibrous apatite product of this invention may be produced by a method comprising the steps of: (a) preparing a dispersion of apatite by dispersing fine apatite particles uniformly in a solution of binder in water, said apatite being one or more apatites selected from a group of apatites represented by the general formula: M10(ZO4)6X2 wherein M represents Ca, Ba, Mg, Sr, Pb, Cd and Fe, ZO4 represents PO4, AsO4 and VO4, and X represents F, Cl and OH; (b) continuously extruding the thus prepared dispersion through a plurality of spinning orifices in a spinning apparatus while simultaneously stretching the - 2 - dispersion into a fibrous state with the aid of a high speed air flow to form a stream of fine fibers; (c) heating said fiber stream to evaporate the water in the fibers; (d) blowing said dewatered fiber stream upon a collector means to form a cotton-like product of apatite bonded together by the binder; and (e) if desired, calcining said cotton-like product.

493540

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