Impact modified polylactide
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United States of America Patent
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Jun 1, 1999
Issued Date -
N/A
app pub date -
May 26, 1998
filing date -
Jul 17, 1996
priority date (Note) -
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Abstract
The present invention is directed to degradable blends containing polylactide, a degradable impact modifier, and a degradable plasticizer for use in packaging films. The degradable impact modifier can be a degradable, non-toxic elastomer or a degradable, non-toxic, non-elastomeric polymer having a low glass transition temperature, such as polycaprolactone and poly(ethylene glycol). The degradable plasticizer can be any plasticizer having a relatively low molecular weight, a high degree of miscibility with polylactide, and non-toxicity. The film has excellent flexibility and impact strength for packaging applications.
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