Biodegradable molded article, manufacturing method thereof, and composition for expansion molding
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United States of America Patent
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Feb 19, 2008
Grant Date -
Jun 12, 2003
app pub date -
Sep 12, 2001
filing date -
Sep 13, 2000
priority date (Note) -
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Abstract
Biodegradable molded articles; a process for producing the same: and compositions for foam molding packed in a packaging film bag to be used in the production. A bowl-type container(10a), which is one of the biodegradable molded articles as described above, consists of a bowl body(11a) comprising starch as the main component and a coating film(12) having at least hydrophobic properties and comprising a biodegradable plastic as the main component which is bonded to the surface of the bowl body(11a). This bowl body(11a) is formed by steam-foaming molding a material to be molded which is in the form of a slurry or a dough containing starch and water. The coating film(12) is closely bonded to the surface of the bowl body(11a) either directly or via an adhesive layer. Compositions for foam molding packed in such packaging film bags can be easily stored and molded.
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