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:
Jan. 08, 2002
Filed:
Aug. 19, 1997
Yoshinori Akamatsu, Mie, JP;
Shigeo Hamaguchi, Mie, JP;
Yoshihiro Nishida, Mie, JP;
Hideki Yamamoto, Mie, JP;
Central Glass Company, Limited, Ube, JP;
Abstract
The invention relates to a water-repellent glass pane having a glass substrate and a water-repellent film formed thereon. This glass pane is prepared by a first or second method. The first method includes sequential steps of (a) mixing together a raw material for producing the water-repellent film, an organic solvent for diluting the raw material, and water for hydrolyzing the raw material, such that the raw material is subjected to hydrolysis and then to dehydration and polycondensation, thereby to turn a mixture of the raw material, the organic solvent and the water into a sol; (b) adjusting water content of the sol, thereby to prepare a coating liquid; and (c) applying the coating liquid to the glass substrate, in an atmosphere having a first temperature and a relative humidity. The second method includes sequential steps of: (a) subjecting a surface of the glass substrate to an abrasive treatment; (b) subjecting the surface of the glass substrate to an acid treatment; and (c) applying a coating liquid to the surface of the glass substrate. The glass pane prepared by the first or second method is superior in abrasion resistance, sunshine resistance, a hardness, adhesion to the glass substrate, and water-repellency for a long time.