Biodegradable resin composition, and biodegradable film
AssigneeShowa Denko K.K.
InventorsYasushi Ichikawa, Hideharu Kimura, Yuuki Tetsuka
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Abstract
There are disclosed a biodegradable resin composition including a starch (a1), a condensation polymer (a2) of an aliphatic diol and an aliphatic dicarboxylic acid, a non-crystalline polylactic acid-based polymer (b) and an aliphatic aromatic polyester (c), a mass ratio (a1/a2) being from 20/80 to 50/50, a mass ratio of a composition (A) comprising the components other than the components (b) and (c) to the component (b) ((A)/(b)) being from 95/5 to 50/50, and a mass ratio {(A)+(b)}/(c) being from 98/2 to 85/15, and a biodegradable film using the biodegradable resin composition.
Claims12
A biodegradable resin composition comprising a starch (a1), a condensation polymer (a2) of an aliphatic diol and an aliphatic dicarboxylic acid, a non-crystalline polylactic acid-based polymer (b) and an aliphatic aromatic polyester (c), a mass ratio of the starch (a1) to the condensation polymer (a2) of an aliphatic diol and an aliphatic dicarboxylic acid (a1/a2) being from 20/80 to 50/50, a mass ratio of a composition (A) comprising the components other than the non-crystalline polylactic acid-based polymer (b) and the aliphatic aromatic polyester (c) to the non-crystalline polylactic acid-based polymer (b) ((A)/(b)) being from 95/5 to 50/50, and a mass ratio {(A)+(b)}/(c) being from 98/2 to 85/15.
Dependencies are inferred from the claim text.