Glass article having a durable water repellent surface
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United States of America Patent
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-
May 22, 2001
Grant Date -
N/A
app pub date -
Jan 21, 1998
filing date -
Jan 24, 1997
priority date (Note) -
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Abstract
A glass substrate is provided with a durable and abrasion-resistant water-repellent surface, by coating a surface of the substrate with a silica solution which has been subjected to a two-step aging process, respectively in the presence of basic and acidic catalysts, which is then thermally treated to provide a coarse-surfaced silica layer including fine crystalline silica particles, which is then coated with a water-repellent layer made of fluoroalkylsilane.
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