CA2325046A1 - Lactic acid residue containing polymer composition and product having improved stability, and method for preparation and use thereof - Google Patents

Lactic acid residue containing polymer composition and product having improved stability, and method for preparation and use thereof Download PDF

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Publication number
CA2325046A1
CA2325046A1 CA002325046A CA2325046A CA2325046A1 CA 2325046 A1 CA2325046 A1 CA 2325046A1 CA 002325046 A CA002325046 A CA 002325046A CA 2325046 A CA2325046 A CA 2325046A CA 2325046 A1 CA2325046 A1 CA 2325046A1
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CA
Canada
Prior art keywords
lactic acid
acid residue
containing polymer
residue containing
polymer composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
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CA002325046A
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French (fr)
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CA2325046C (en
Inventor
Jeffrey J. Kolstad
David R. Witzke
Mark H. Hartmann
Eric Stanley Hall
James Francis Nangeroni
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Cargill Inc
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Individual
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Publication of CA2325046A1 publication Critical patent/CA2325046A1/en
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Publication of CA2325046C publication Critical patent/CA2325046C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/88—Post-polymerisation treatment
    • C08G63/90—Purification; Drying

Abstract

The invention relates to a lactic acid residue containing polymer composition and product having improved stability and to methods for the preparation and use thereof. The lactic acid residue containing polymer preferably includes a polylactide polymer having a number average molecular weight of between about 25,000 and about 200,000, lactide, if present at all, present in a concentration of less than 0.5 wt.% based on the weight of the composition, and deactivating agents. Articles which can be manufactured from the lactic acid residue containing polymer composition include fibers, coated paper, films, moldings, and foam.
CA002325046A 1998-04-01 1999-03-24 Lactic acid residue containing polymer composition and product having improved stability, and method for preparation and use thereof Expired - Lifetime CA2325046C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/053,836 US6114495A (en) 1998-04-01 1998-04-01 Lactic acid residue containing polymer composition and product having improved stability, and method for preparation and use thereof
US09/053,836 1998-04-01
PCT/US1999/006437 WO1999050345A1 (en) 1998-04-01 1999-03-24 Lactic acid residue containing polymer composition, product method for preparation and use

Publications (2)

Publication Number Publication Date
CA2325046A1 true CA2325046A1 (en) 1999-10-07
CA2325046C CA2325046C (en) 2009-03-10

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CA002325046A Expired - Lifetime CA2325046C (en) 1998-04-01 1999-03-24 Lactic acid residue containing polymer composition and product having improved stability, and method for preparation and use thereof

Country Status (8)

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US (2) US6114495A (en)
EP (1) EP1070097B1 (en)
JP (1) JP2002509968A (en)
CN (1) CN100379806C (en)
BR (1) BR9909283B1 (en)
CA (1) CA2325046C (en)
HK (1) HK1036466A1 (en)
WO (1) WO1999050345A1 (en)

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HK1036466A1 (en) 2002-01-04
CA2325046C (en) 2009-03-10
US6114495A (en) 2000-09-05
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EP1070097B1 (en) 2016-02-17
CN100379806C (en) 2008-04-09
BR9909283A (en) 2000-12-26
JP2002509968A (en) 2002-04-02
EP1070097A1 (en) 2001-01-24
US6353086B1 (en) 2002-03-05
WO1999050345A1 (en) 1999-10-07

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