COATED POWDER AND PROCESS FOR THE PREPARATION THEREOF

WIPO Patent Application WO/1999/022894

A1

A highly functional coated powder which can be prepared not by a process comprising the hydrolysis of a metal alkoxide but by a process which can be conducted without an expensive metal alkoxide and a highly flammable organic solvent and dispense with explosion-proof facilities, is facilitated in the control of temperature and humidity, and therefore permits lowering in the production cost as a whole; and a process for the preparation thereof. The coated powder is composed of substrate particles each covered with one or more films of which at least one is a film formed from a metal salt through a reaction in an aqueous solvent under the condition of constant pH. The process does not cause the precipitation of a solid in a free state (not adhering to the particle) in the liquid phase, and can give a uniform solid film on the surface of each substrate particle, while inhibiting the particles from causing aggregation.

JPH10101963	PRODUCTION OF INORGANIC PARTICLE AND ITS USE
JP4454037	Granulation equipment

NAKATSUKA KATSUTO (JP)
ATARASHI TAKAFUMI (JP)
KISHIMOTO AKIRA (JP)

PCT/JP1998/004880

May 14, 1999

October 28, 1998

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NITTETSU MINING CO LTD (JP)
NAKATSUKA KATSUTO (JP)
ATARASHI TAKAFUMI (JP)
KISHIMOTO AKIRA (JP)

B01J2/00; B22F1/16; C23C18/12; C23C22/58; C23C24/08; C23C26/00; (IPC1-7): B22F1/02

JPS63213905A	1988-09-06
JPH0776702A	1995-03-20
JPH06299363A	1994-10-25
JPS5931003A	1984-02-18

TOKUZO KOBE, "Electroless Plating (in Japanese)", JAPAN (TOKYO): SHINSHOTEN, 10 December 1984, page 5.

Hagino, Taira (28th floor 12-32, Akasaka 1-chome Minato-ku Tokyo, JP)

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