Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Reexamination Certificate
2002-12-24
2009-11-03
Vanoy, Timothy C (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
C502S350000, C427S162000, C427S165000, C427S255110, C427S255150, C427S255180, C427S255190, C427S419100, C427S419200, C427S419300, C427S419400
Reexamination Certificate
active
07612015
ABSTRACT:
A photocatalyst layer (TiO2) is formed on the surface of a substrate (glass plate) through the intermediary of a monoclinic undercoat layer (ZrO2), and no dead layer is substantially present between the photocatalyst layer and the undercoat layer. Also, by providing a peel preventing layer between the substrate and the undercoat layer, it is possible to eliminate film peeling between the photocatalyst layer and the substrate, defects and discoloration. A metal element may be doped in the photocatalyst layer, and it is preferable that the metal element is at least one of Sn, Zn, Mo and Fe. The phrase “no dead layer is substantially present” means that the thickness of the dead layer is 20 nm or less. The thickness of the photocatalyst layer is preferably from 1 nm to 1,000 nm, more preferably from 1 nm to 500 nm.
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Anzaki Toshiaki
Kijima Yoshifumi
Mori Kenji
Fredrikson & Byron , P.A.
Hanor Serena L
Nippon Sheet Glass Company Limited
Vanoy Timothy C
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