Biodegradable thermoplastic polymer blend compositions with accelerated biodegradation
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United States of America Patent
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Dec 22, 1998
Issued Date -
N/A
app pub date -
Mar 20, 1995
filing date -
Jan 8, 1993
priority date (Note) -
Expired
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Abstract
Biodegradable thermoplastic polymer blend compositions are presented in which a first polymer and a second polymer are intimately associated together in a uniform, substantially homogeneous blend. The second polymer of the composition acts to facilitate biodegradation of the composition, and of shaped articles manufactured therefrom, at a rate which is enhanced over that of the most slowly biodegrading individual polymer component of the composition. The composition may further comprise a polysaccharide component, such as a starch component like destructurized starch.
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