Abstract: The present invention relates to a biodegradable polymer blend based on a biodegradable aliphatic aromatic polyester and/or aliphatic polyester comprising: The blend comprises—10 to 80% by weight, based on the total weight of polyester a), polymer b) and polycaprolactone c), of at least one biodegradable polyester a) selected from the group consisting of aliphatic-aromatic polyesters, aliphatic polyesters, which are different from polymers b) and c), and mixtures thereof;—18 to 88% by weight, based on the total weight of polyester a), polymer b) and polycaprolactone c), of at least one polymer b), selected from the group consisting of polyhydroxyalkanoates, polylactides, polyglycolic acid and mixtures thereof;—2 to 72% by weight, based on the total weight of polyester a), polymer b) and polycaprolactone c), of at least one polycaprolactone c) having a viscosity number of at least 110 ml/g, in particular at least 150 ml/g, preferably at least 200 ml/g, especially at least 250 ml/g, as determined according to D

Abstract: The present invention relates to a biodegradable lamination film having the A/B layer structure, where layer A of thickness 0.5 to 7 ?m comprises a polyurethane or acrylate adhesive; and where layer B of thickness 5 to 150 ?m comprises an aliphatic polyester and/or aliphatic-aromatic polyester, where the aliphatic-aromatic polyester is of the following composition: b1-i) 30 to 70 mol %, based on components b1-i and b1-ii, of a C6-C18 dicarboxylic acid; b1-ii) 30 to 70 mol %, based on components b1-i and b1-ii, of terephthalic acid; b1-iii) 98 to 100 mol %, based on components b1-i and b1-ii, of propane-1,3-diol or butane-1,4-diol; b1-iv) 0% to 2% by weight, based on components b1-i and b1-iii, of a chain extender and/or branching agent.