Method for treating inside surface of glass container and glass container
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United States of America Patent
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Mar 5, 2013
Grant Date -
Oct 6, 2011
app pub date -
Jan 18, 2011
filing date -
Mar 30, 2010
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for treating the inside surface of a glass container includes applying a polysilazane solution to the inside surface of the glass container, drying the polysilazane while the glass container is rotated in the state of being inverted and inclined 50° to 70° with respect to horizontal, and sintering the polysilazane. During the sintering, the sintering temperature is 300° C. to 600° C. and the sintering time is 10 minutes or more. The method may also include applying at least one of a sulfur dioxide gas, a sulfur trioxide gas, a chlorine gas, and a chlorofluorocarbon gas to the inside surface of the glass container under heating, during which the average temperature of the glass container may be 500° C. to 700° C.
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