Coating processes – Direct application of electrical – magnetic – wave – or... – Pretreatment of substrate or post-treatment of coated substrate
Reexamination Certificate
2007-11-13
2007-11-13
Padgett, Marianne (Department: 1762)
Coating processes
Direct application of electrical, magnetic, wave, or...
Pretreatment of substrate or post-treatment of coated substrate
C427S165000, C134S001000
Reexamination Certificate
active
10924158
ABSTRACT:
A method of preventing or reducing fogging of a surface of a composite when subjected to humid conditions includes providing a composite with a surface. The composite includes a substrate and a photocatalytic surface layer. The photocatalytic surface layer includes a photocatalyst. The method further includes subjecting the photocatalyst to photoexcitation to render the surface of the composite hydrophilic, wherein, after the photoexcitation, the surface of the composite has a water wettability of less than 10° in terms of the contact angle with water. The method further includes subjecting the composite to humidity that is sufficient to induce fogging of the substrate if the photocatalytic surface layer were absent.
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Tamihiko Kato, et al; Photo-Sinking of Titanium (IV) Oxide Powders, The Chemical Society of Japan, 1986 (1) pp. 8-11, no month.
Chikuni Makoto
Fujishima Akira
Hashimoto Kazuhito
Hayakawa Makoto
Kitamura Atsushi
Jones Day
Padgett Marianne
Toto Ltd.
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