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Application US20190359818
Published 2019-11-28
Biodegradable Polyester Resin Composition And Molded Article Formed From Said Resin Composition
A biodegradable polyester resin composition containing 30 to 60 parts by weight of (A) a polylactic acid, 25 to 45 parts by weight of (B) a poly-3-hydroxyalkanoate, and 5 to 25 parts by weight of (C) an aliphatic-aromatic polyester, based on 100 parts by weight in total of (A) the polylactic acid, (B) the poly-3-hydroxyalkanoate, and (C) the aliphatic-aromatic polyester. The biodegradable polyester resin composition further contains 0.05 to 20 parts by weight of (D) pentaerythritol, 10 to 40 pans by weight of (E) a silicate, and 0 to 3 parts by weight of (F) a compatibilizer having an epoxy group, relative to 100 parts by weight in total of (A) the polylactic acid, (B) the poly-3-hydroxyalkanoate, and (C) the aliphatic-aromatic polyester.
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USPTO Full Text Publication >
- 1: A biodegradable polyester resin composition, comprising:
30 parts by weight or more and 60 parts by weight or less of (A) a polylactic acid; 25 parts by weight or more and 45 parts by weight or less of (B) a poly-3-hydroxyalkanoate; and 5 parts by weight or more and 25 parts by weight or less of (C) an aliphatic-aromatic polyester, based on 100 parts by weight in total of (A) the polylactic acid, (B) the poly-3-hydroxyalkanoate, and (C) the aliphatic-aromatic polyester, wherein the biodegradable polyester resin composition further comprises, relative to 100 parts by weight in total of (A) the polylactic acid, (B) the poly-3-hydroxyalkanoate, and (C) tire aliphatic-aromatic polyester; 0.05 part by weight or more and 20 parts by weight or less of (D) pentaerythritol; 10 parts by weight or more and 40 parts by weight or less of (E) a silicate; and 0 part by weight or more and 3 parts by weight or less of (F) a compatibilizer having an epoxy group.
