PARTICULATE PHOTOCATALYST, PROCESS FOR PRODUCING THE SAME, AND APPLICATIONS THEREOF

WIPO Patent Application WO/2001/017679

A1

A particulate photocatalyst comprising fine titanium dioxide particles the surface of which has been coated with a film of a sparingly water-soluble organic substance such as calcium salt of a polycarboxylic acid, polysulfonic acid, or anionic surfactant. This particulate photocatalyst is produced by adding an insolubilizing agent to a slurry containing a film-forming water-soluble organic substance and fine titanium dioxide particles to form a film of a sparingly water-soluble organic substance on the surface of the fine titanium dioxide particles. It is used, e.g., for environmental purification as an organic polymer composition containing the particulate photocatalyst, a molding of the organic polymer composition, a structure having on the surface the particulate photocatalyst, or the like.

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HAGIHARA HIROYUKI (JP)
ITO KATSURA (JP)

PCT/JP2000/006151

March 15, 2001

September 08, 2000

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SHOWA DENKO KK (JP)
HAGIHARA HIROYUKI (JP)
ITO KATSURA (JP)

B01J35/00; (IPC1-7): B01J35/02; C08K9/04

JP2000290496A	2000-10-17
JPH10310401A	1998-11-24
US6090736A	2000-07-18
JPH10244166A	1998-09-14

Uchida, Yukio (Shiba 2-chome Minato-ku, Tokyo, JP)

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