METHOD FOR MANUFACTURING AN INJECTION-MOLDED ARTICLE AND AN INJECTION-MOLDED ARTICLE
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United States of America Patent
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Issued Date -
Jan 30, 2014
app pub date -
Feb 29, 2012
filing date -
Mar 8, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Provided is a method for manufacturing an injection-molded article, where the method is capable of obtaining a molded article having a high crystallinity while reducing the amount of flash generated and has excellent productivity. A polyarylene sulfide-based resin composition is injection-molded at a mold temperature of 100° C. or less using a mold on the inner surface of which a heat-insulating layer constituted of porous zirconia is formed. It is preferable that the heat-insulating layer is formed by a spraying method. Preferably, the heat-insulating layer has a thermal conductivity of 2 W/(m·K) or less. Preferably, the heat-insulating layer has a thickness of no less than 200 μm.
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