Heat setting method
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United States of America Patent
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-
Mar 27, 1984
Grant Date -
N/A
app pub date -
Nov 5, 1982
filing date -
Nov 5, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed is a method and apparatus for orientation blow molding and heat setting of a thermally crystallizable polymer wherein the orientation blow molding is effected in a relatively low mass blow mold which is enclosed within a heated, high mass mold for transferring heat to the hollow article for heat setting; thereafter the outer mold is opened and the blow mold is cooled in a variety of methods in order to cool the heat set hollow article.
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