Blends of polyactic acid
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United States of America Patent
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Jun 1, 1993
Issued Date -
N/A
app pub date -
Sep 6, 1990
filing date -
Aug 8, 1988
priority date (Note) -
Expired
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Abstract
An environmentally degradable composition comprising blends of a physical mixture of poly(lactic acid), and a polymer selected from the group consisting of poly(ethylene terephthalate), a polymer or copolymer of styrene, ethylene, propylene, vinyl chloride, vinyl acetate, alkyl methacrylate, alkyl acrylate, and physical mixtures thereof; plasticized with D-lactic acid, L-lactic acid, racemic D,L-lactic acid, D-lactide, L-lactide, meso D,L-lactide, racemic, D,L-lactide, oligomers of lactic acid, oligomers of lactide, derivatives of oligomers of lactic acid, or various mixtures thereof.
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