Method for producing semicrystalline polylactic acid articles

United States of America Patent

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Mar 2, 2010
Grant Date
Oct 23, 2008
app pub date
Jun 27, 2008
filing date
Aug 19, 2002

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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. Semicrystalline formed articles having improved heat resistance are made by the process.

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NATUREWORKS LLC	14700 MEDINA ROAD SUITE 800 PLYMOUTH MN 55447

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B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....

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Inventor Name	Address	# of filed Patents	Total Citations
Bopp, Richard C	Golden Valley, US	20	264
Whelan, Jason	New Hope, US	5	137

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Method for producing semicrystalline polylactic acid articles

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United States of America Patent

12163466

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PATENT NO	7670545
APP PUB NO	20080258357A1
SERIAL NO	12163466
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
March 02, 2010	US,7670545,B2 US7670545B2	GRANTED PATENT AS SECOND PUBLICATION
October 23, 2008	US,20080258357,A1 US20080258357A1	FIRST PUBLISHED PATENT APPLICATION

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12163466

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