Patent ID: 8455560

Claim:
A foam ply based on a biodegradable polyester mixture, comprising i) from 70 to 5% by weight, based on the total weight of components i) to ii), of at least one polyester based on aliphatic and aromatic dicarboxylic acids and on aliphatic dihydroxy compounds, and from 30 to 95% by weight, based on the total weight of components i) to ii), of polylactide, and iii) from 0.1 to 5% by weight, based on the total weight of components i) to ii), of a copolymer which comprises epoxy groups and is based on styrene, acrylates, and/or methacrylates, wherein the content of said epoxy groups in said copolymer is more than 30%, and iv) from 0.5 to 3% by weight, based on the total weight of components i) to ii), of a nucleating agent, and v) from 0 to 50% by weight of inorganic or organic filler.