The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 2011
Filed:
Dec. 17, 2007
Teruyuki Sasaki, Tokyo, JP;
Kazutaka Kamitani, Tokyo, JP;
Teruyuki Sasaki, Tokyo, JP;
Kazutaka Kamitani, Tokyo, JP;
Nippon Sheet Glass Company, Limited, Tokyo, JP;
Abstract
The present invention allows abrasion resistance in silica-based films containing an organic material to be improved. Such a silica-based film contains silica as an inorganic oxide to be its main component, and a poorly water-soluble polymer as an organic material. Example of the poorly water-soluble polymer include a polymer having a solubility of 1.0 g or less with respect to 100 g of water at 25° C., such as polycaprolactone polyol, bisphenol A polyol and glycerol polyol. The silica-based film exhibits good abrasion resistance not only in the Taber abrasion test, but also in the steel wool abrasion test.