Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Reexamination Certificate
2005-04-26
2005-04-26
Bell, Mark L. (Department: 1755)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
C502S350000, C423S582000, C423S598000, C423S608000, C106S287130, C106S287190, C106S436000, C106S447000, C524S413000, C524S430000
Reexamination Certificate
active
06884752
ABSTRACT:
Method for producing novel photochemically-active metal oxide-containing aqueous compositions such as TiO2compositions coated or sprayed and dried under ambient conditions to form novel photochemically-active, colorless coatings having strong wetability and adhesion to clear substrates such as window glass. Preferably the present compositions include a suitable wetting agent or combination of agents to improve the wetability of the Titanium peroxide-containing amorphous film, allowing thinner films to be readily applied. Also the inclusion of an acrylic aliphatic urethane polymer can replace wholly or partially the titanium peroxide sol and provide additional film forming and wetability properties. The acrylic urethane polymer reduces or eliminates the amount of titanyl peroxide that is required and thereby reduces or eliminates the yellow color.
REFERENCES:
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patent: 6107241 (2000-08-01), Ogata et al.
patent: 6429169 (2002-08-01), Ichinose
patent: 2002-212505 (2002-07-01), None
patent: 2002-241522 (2002-08-01), None
patent: 2002-348540 (2002-12-01), None
Photocatalytic Activities of Coating Films Prepared From Peroxotitanic Acid Solution-Derived Anatase Sols; Journal of the Ceramic Society of Japan, 4 pages.
Synthesis of Peroxo-Modified Anatase Sol From Peroxo Titanic Acid Solution; Journal of the Ceramic Society of Japan, Int. Edition; 4 pages, no month/year.
Photocatalytic Degradation of Gaseous Organic Pollutant; Journal of Chemical Education; 2 pages, no month/year.
Bell Mark L.
Hailey Patricia L.
Perman & Green, LLP.
Prizmalite Industries Inc.
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