Method for producing semicrystalline polylactic acid articles
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United States of America Patent
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Issued Date -
Feb 27, 2003
app pub date -
Aug 19, 2002
filing date -
Aug 20, 2001
priority date (Note) -
Abandoned
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Abstract
Amorphous sheets of PLA resins are thermoformed by heating the sheets until they become semicrystalline, and then forming the sheets on a relatively cold mold. Semicystalline formed articles having improved heat resistance are made by the process.
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