Agency of Industrial Science and Technology

Ministry of International Trade & Industry

Agency of Industrial Science and Technology Ministry of International

Hajime Nagae

Takahiro Suzuki

Motohiro Toriyama

Yoshiyuki Yokogawa

Fukue Nagata

Yukari Kawamoto

Kaori Nishizawa

Michael Roger Mucalo

A method for the production of a composite consisting of cellulose fibers coated with a calcium phosphate compound consists essentially of phosphorylating the surface of cellulose fibers, immersing the surface-phosphorylated cellulose fibers in an aqueous solution containing calcium ions and hydroxyl ions, removing the cellulose fibers from the aqueous solution and subsequently immersing them in an aqueous solution containing calcium ions and phosphoric acid ions, and then removing the cellulose fibers from the aqueous solution. Also disclosed is a composite produced by the method.

Calcium phosphate compound-cellulose fiber composite material and method

A platelike hydroxyapatite is produced by preparing from a phosphate and a calcium salt an aqueous slurry of amorphous calcium phosphate having an atomic ratio of calcium atoms to phosphorus atoms in the range of 1.3:1 to 2.0:1, adding to the aqueous slurry not less than 10% by weight of alcohol based on the amount of the aqueous slurry, and subjecting the resultant mixture to a hydrothermal treatment.

Method for production of platelike hydroxyapatite

Growing community of inventors

Nagoya, Japan

Hajime Nagae