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Title:
METHOD FOR COATING PHOTOCATALYST FOR POLYESTER MOLDING
Document Type and Number:
Japanese Patent JP2009061404
Kind Code:
A
Abstract:

To provide a method for coating a photocatalyst for polyester molding that prevents photocatalysts such as titanium oxide from being buried in a binder component used for coating a polyester molding material, allows the photocatalyst to be densified and strongly bound on a surface of the polyester molding material, and allows an activity of the bound photocatalyst to last for a long period of time.

The method for coating a photocatalyst for polyester molding comprises allowing electrostatically a photocatalyst to be bound to a film by forming a silica barrier layer where dehydration condensation reaction is completed by performing thermal processing at a temperature of 70C or higher for ten hours or longer after covering the surface of the polyester molding with an organic silane compound, and then allowing the layer to contact a mixture solution with weight ratio of photocatalyst to water of 0.0005 to 0.1:1 at pH of 6.5 or less after forming a dried film of polyvinyl acetate series resin negatively charged.


Inventors:
Matsuzawa, Sadao
Negishi, Nobuaki
Hirakawa, Tsutomu
Application Number:
JP2007000232086
Publication Date:
March 26, 2009
Filing Date:
September 06, 2007
Export Citation:
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Assignee:
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL TECHNOLOGY
International Classes:
B05D5/00; B01D53/86; B01J35/02; B01J37/08; B05D7/02; D06M11/46; D06M11/79; D06M13/513; D06M15/00; D06M15/333; D06M15/70; D06M101/32
Domestic Patent References:
JP2007229667A2007-09-13
JP2006514165A2006-04-27
JP2007229667A2007-09-13
JP2006514165A2006-04-27