Patent ID: 7015269

Claim:
A biodegradable thermoplastic molding composition comprising, based on the total weight of the thermoplastic molding composition, a) at least 30% by weight of at least one biodegradable thermoplastic copolyester which contains at least three components selected from a group consisting of components A and B, and optionally contains one or more further components C, wherein the copolyester comprises as component A, from 30 to 95 mol % of at least one aliphatic dicarboxylic acid and from 5 to 70 mol % of at least one aromatic dicarboxylic acid, wherein the dicarboxylic acids are employed in form of the acid, an ester-forming derivative of the acid, or a mixture of the dicarboxylic acids and their ester-forming derivatives, and as component B, at least one diol component selected from the group consisting of C 2 –C 12 alkianediols and C 5 –C 10 cycloalkanediols and mixtures thereof, and component C is selected from tri- and polyols, di- and polyamines, amino alcohols, hydroxycarboxylic acids, aminocarboxylic acids, tri- and polycarboxylic acids, bisoxazolines and isocyanates; and b) from 0.01 to 15% by weight of at least one hydrophobicized phyllosilicate, and c) a copolymer or block copolymer based on lactic acid and polyhydroxyalkanoates.