METHOD FOR CLEANING GLASS SUBSTRATE
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United States of America Patent
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Nov 5, 2015
app pub date -
Dec 3, 2013
filing date -
Dec 5, 2012
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Abstract
To provide a method for cleaning a glass substrate in which aggravation of surface roughness of the glass substrate in alkali cleaning is suppressed and cleaning performance is improved. In one or a plurality of embodiments, this invention relates to a method for cleaning a glass substrate, including bringing a detergent composition into contact with a glass substrate to be cleaned. The detergent composition containing an amine including 1 to 10 nitrogen atoms and an inorganic alkali, the amine content is in a range of 5.00 mass % to 70.00 mass % relative to the total mass of components of the detergent composition other than water, the glass substrate to be cleaned is a crystallized glass substrate, and a pH of the detergent composition during cleaning is in a range of 9.00 to 11.50.
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