Method for manufacturing reinforced glass plate, and method for manufacturing glass plate for reinforcement
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United States of America Patent
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Jul 28, 2020
Grant Date -
Mar 1, 2018
app pub date -
Mar 15, 2016
filing date -
Mar 25, 2015
priority date (Note) -
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Abstract
Provided is a method of manufacturing a tempered glass sheet that has been tempered by an ion exchange process, the method including: a film forming step of covering a surface of an original glass sheet with an ion permeation suppressing film configured to suppress permeation of an alkali metal ion, to thereby provide a glass sheet with a film; a processing step of subjecting, after the film forming step, the glass sheet with a film to at least any one of cutting processing, end-surface processing, and hole-opening processing, to thereby provide a glass sheet to be tempered including an exposed portion free from being covered with the ion permeation suppressing film; and a tempering step of chemically tempering, after the processing step, the glass sheet to be tempered by the ion exchange process to provide a tempered glass sheet.
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