Title:
METHOD OF ROLL-FORMING PHOTOCATALYST OR THE LIKE ON SPHERE
Document Type and Number:
WIPO Patent Application WO/2004/041431
Kind Code:
A1
Abstract:
A method of roll-forming a photocatalyst, comprising the steps of forming a film of silicone binder having a predetermined film thickness on the surface of a sphere by a film forming means, uniformly sticking a photocatalyst thereto in film form while the silicone binder is in its uncured state by using a pan type rolling device or planetary-motion-utilizing rolling device, ball screw device, vibration-rolling device or the like, immersing the same in water, forcibly degassing the organic matter in the silicone sealant and causing the silicone oil to ooze out while washing away an excess photocatalyst, processing the organic matter in the water with photocatalyst powder dispersed in the water by photoexcitation of the photocatalyst by ultraviolet rays, decomposing the organic matter on the photocatalyst surface by the photocatalyst sticking to the sphere surface, so as to form a hydrophilic layer on the photocatalyst surface, thereby mass-producing a pure photocatalyst having a large surface area.
Inventors:
KAWAKAMI TOSHIO (JP)
Application Number:
PCT/JP2003/014111
Publication Date:
May 21, 2004
Filing Date:
November 05, 2003
Export Citation:
Assignee:
KAWAKAMI TOSHIO (JP)
International Classes:
B01J21/06; B01J35/00; B01J35/02; B05D7/24; B01J37/00; B01J37/02; B01J37/06; (IPC1-7): B01J37/00; B01J35/02; B05D7/24
Foreign References:
| EP0684075A1 | 1995-11-29 | |||
| EP0816466A1 | 1998-01-07 | |||
| JP2002177792A | 2002-06-25 |
Attorney, Agent or Firm:
Ishikawa, Yasuo (17-11 Shiba 2-chom, Minato-ku Tokyo, JP)
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