Title:
PROCESS FOR PRODUCING CHEMICAL CONVERSION COATING FILM OF TITANIUM OXIDE
Document Type and Number:
Japanese Patent JP3886961
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a production process capable exhibiting excellent photocatalytic performance, also having practical durability, and capable of giving a chemical conversion coating film of titanium oxide.
SOLUTION: In a process for producing the chemical conversion coating film of titanium oxide having the photocatalytic performance on the surface of an aluminium material, the process is characterized by including a chemical conversion process bringing the aluminium material into contact with an admixture solution of titanium fluoride and hydrogen peroxide to form the chemical conversion coating film on the surface of the aluminium material. It is preferable to further include a heat treatment process for carrying out heat treatment of a formed chemical conversion coating film, and a film increase treatment process bringing the chemical conversion coating film after the heat treatment into contact with the mixed solution of sodium aluminate, sodium hydroxide and sodium oxalate to provide a thick film.
Inventors:
Takayuki Fujino
Application Number:
JP2003419789A
Publication Date:
February 28, 2007
Filing Date:
December 17, 2003
Export Citation:
Assignee:
Kinki University
International Classes:
B01J35/02; B01J21/06; B01J37/02; B01J37/08; C23C22/34; C23C22/83; (IPC1-7): B01J35/02; B01J21/06; B01J37/02; B01J37/08; C23C22/34; C23C22/83
Domestic Patent References:
| JP53005039A | ||||
| JP54010244A | ||||
| JP54024232A | ||||
| JP10071336A | ||||
| JP11147717A | ||||
| JP2003144938A | ||||
| JP10174883A | ||||
| JP2003041379A |
Attorney, Agent or Firm:
Hiroshi Yamazaki
Yasushi Ohata
Tadataka Omori
Yasushi Ohata
Tadataka Omori