Thermal treatment of glass
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United States of America Patent
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-
Feb 8, 1983
Issued Date -
N/A
app pub date -
Jul 21, 1981
filing date -
Aug 17, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The thermal treatment of glass is effected by contacting the glass, when it is hot, with a gas-fluidized mixture of particulate materials, at least one of which is selected to have gas-generating properties when heated by the hot glass. The materials are mixed in selected pre-determined proportions which impart to the mixture a thermal capacity and flowability which are such that a required thermal treatment is achieved. The method is particularly suitable for the thermal toughening of glass sheets for vehicle windscreens.
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