Patent ID: 8399101

Claim:
An article produced from a film or sheet wherein the article is a thermoformed article; the film or sheet comprises about 90 to about 99.8 weight % of a poly(hydroxyalkanoic acid) composition and about 0.2 to about 10 weight % of an impact modifier, based on the total weight of the poly(hydroxyalkanoic acid) and the modifier; and the modifier comprises a core/shell polymer that does not comprise a vinyl aromatic comonomer and has a refractive index not greater than 1.5; the core is alkyl acrylate polymer; the poly(hydroxyalkanoic acid) comprises poly(lactic acid); the shell comprises polymethyl methacrylate and optionally comprising functional groups including epoxy, carboxylic acid, amine, or combinations of two or more thereof; and the alkyl acrylate polymer is cross-linked.