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Title:
ALUMINUM OR ALUMINUM ALLOY MATERIAL HAVING SURFACE-TREATED FILM AND METHOD OF HEAT TREATMENT THEREOF
Document Type and Number:
Japanese Patent JP2011161876
Kind Code:
A
Abstract:

To provide an aluminum or aluminum alloy material on the surface of which a surface-treated film retaining hydrophilicity, corrosion resistance, antimicrobial property, and antiodor property for a long period of time, and a method for the surface treatment.

The aluminum or aluminum alloy material has a first protective layer and a second protective layer on the surface of its base material in this order. The first protective layer is a chemically converted film containing at least one of metal selected from among vanadium, titanium, zirconium, and hafnium. The second protective layer is an organic film composed of a composition containing (1) a chitosan derivative and a solubilizer, (2) a modified polyvinyl alcohol to the side chain of which a hydrophilic polymer is graft-polymerized, and (3) a water-soluble crosslinking agent.


Inventors:
SAKAUCHI HIROKATSU
OKAMOTO YOSHIYUKI
NAKAMURA KENJI
HIROSE ATSUYUKI
KASEBE OSAMU
NISHITANI SHIN
KOBAYASHI KENGO
Application Number:
JP2010029756A
Publication Date:
August 25, 2011
Filing Date:
February 15, 2010
Export Citation:
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Assignee:
NIHON PARKERIZING
DENSO CORP
International Classes:
B32B15/08; C23C22/44; C23C28/00
Domestic Patent References:
JP2009108111A2009-05-21
JP2000345362A2000-12-12
JP2008150585A2008-07-03
JP2009108111A2009-05-21
JP2000345362A2000-12-12
JP2008150585A2008-07-03
Attorney, Agent or Firm:
Shunichi Yoshimura



 
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