Vial and method for producing the same
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United States of America Patent
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Feb 28, 2017
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app pub date -
Mar 18, 2013
filing date -
May 16, 2005
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Abstract
A method for producing a vial with low alkali elution by removing a deteriorated region caused by processing on an internal surface of a vial is disclosed. The method is for forming vials from borosilicate glass tubes, which includes a first step of forming a mouth of the vial; a second step of forming the borosilicate glass tube into a cup-shaped body to form a bottom of a vial; and a third step of fire-blasting an internal surface of the cup-shaped body with a flame.
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