| http://www.w3.org/ns/prov#value | - rs and copolymers of an oxy-acid or oxy-acids, such as lactic acid, malic acid, or/and gluconic acid, and particularly include hydroxycarboxylic acid-based aliphatic polyester resins, such as polylactic acid. [0094] The polylactic acid-based aliphatic polyester resin can generally be obtained by a ring-opening polymerization of a lactide which is a cyclic diester or the corresponding lactone, i.e.
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