High-durability photocatalyst film and structure having photocatalytic functions on surface
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United States of America Patent
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Feb 10, 2009
Grant Date -
Nov 10, 2005
app pub date -
Jul 30, 2003
filing date -
Jul 31, 2002
priority date (Note) -
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Abstract
A high-durability photocatalyst film that is a laminated film comprising a substrate film and a photocatalytically active material layer formed thereon via a protective layer, wherein the substrate film is a film having specific performances in a weather resistance test with a sunshine weatherometer, the protective layer is an organic-inorganic composite graded film and the above laminated film exhibits specific performances in an accelerated weather resistance test with a sunshine weatherometer, and a structure having photocatalytic functions on a surface formed of the above photocatalyst film.
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