Starch-containing biodegradable plastic and method of producing same
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United States of America Patent
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Oct 26, 1993
Grant Date -
N/A
app pub date -
Oct 1, 1992
filing date -
Oct 4, 1991
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A biodegradable plastic composition, which may be in the form of a molded dy, includes gelatinized starch and a biodegradable, aliphatic polyester resin having a melting point of 45.degree.-130 .degree. C. The plastic is produced by kneading a blend containing a starchy substance selected from non-gelatinized, granular starch and gelatinized starch and the aliphatic polyester resin at a temperature higher than the melting point of the aliphatic polyester in the presence of water in an amount of 1-45 % based on the weight of the starchy substance.
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