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Patent Searching and Data


Title:
SUBSTRATE COATED WITH SILICON OXIDE HAVING EXCELLENT DURABILITY
Document Type and Number:
Japanese Patent JPS57100943
Kind Code:
A
Abstract:

PURPOSE: To prepare the titled substrate coated with silicon oxide having high stability against saline water and high-temperature steam, by forming a silicon oxide coating film containing ZrO2 on the surface of a substrate.

CONSTITUTION: An alcohol solution containing 5W30wt% organic silicon compound (e.g. ethyl silicate) is added with a zirconium compound[e.g. ZrCl2, Zr(NO3)4, etc.]in an amount of 1W30mol% (as ZrO2), and the pH of the mixture is adjusted to 2W6 with an acid such as hydrochloric acid, acetic acid, etc. to obtain a film-forming solution. The solution is applied to the surface of a substrate made of glass, ceramic, plastic, etc., dried by heating, and baked in an oxidative atmosphere or in air at 300W650°C to obtain a silicon oxide coating film having a thickness of 500W2,000. The silicon oxide coating film thus obtained is resistant to the formation of spot defects and fine cracks even by the outdoor exposure.


Inventors:
MIZUHASHI MAMORU
IIDA NORIYUKI
Application Number:
JP17313880A
Publication Date:
June 23, 1982
Filing Date:
December 10, 1980
Export Citation:
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Assignee:
ASAHI GLASS CO LTD
MURAKAMI KAIMEIDO KK
International Classes:
C04B41/87; C03C17/23; C08J7/06; (IPC1-7): C03C17/23; C04B41/06; C08J7/04