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. 15, 2002
Filed:
Jul. 15, 1997
Central Glass Company, Limited, Ube, JP;
Abstract
The invention relates to a water-repellent glass plate having a glass substrate; a first film which is formed on the glass substrate and is made of silica; and a water-repellent second film formed on the first film. This glass plate is prepared by a method including steps of: (1) applying a first coating liquid containing tetraisocyanate silane to the glass substrate, thereby to form thereon a precursory film; and (2) subjecting the precursory film to a drying at room temperature or to a heat treatment, thereby to prepare the first film; and (3) applying a second coating liquid to the first film, thereby to form the second film on the first film. The tetraisocyanate silane of the step (1) is curable at room temperature. The second coating liquid contains an alkoxysilane having at least one fluorocarbon group substituted for at least one hydrogen atom thereof. By the provision of the first film, the water-repellent second film becomes superior in solar resistance, abrasion resistance, chemical resistance, and adhesion to the glass substrate.