Biodegradable polymer mixture

The present invention relates to a biodegradable polymer mixture comprising i) 40 to 95 wt.-% based on the total weight of components i to ii, at least one polyester based on aliphatic or aliphatic-aromatic dicarboxylic acids and aliphatic dihydroxy compound; ii) 5 to 60 wt.-% based on the total weight of components i to ii, polyalkylene carbonate, in particular polypropylene carbonate; iii) 0 to 60 wt.-% based on the total weight of components i to iii, at least one biodegradable homo- or copolyester selected from the group consisting of polylactic acid, polycaprolactone, polyhydroxyalkanoates and an inorganic or organic filler; iv) 0 to 10 wt.-% based on the total weight of components i to ii of a styrene, acrylic acid ester and/or methacrylic acid ester based copolymer containing an epoxide group and v) 0 to 15 wt.-% of an additive selected from the group consisting of lubricants, antiblocking agents, antistatic agents, UV absorbers, UV stabilizers, thermal stabilizers, dyes, pigments, softeners, fertilizers and pesticides ingredients. The present invention further relates to a method for producing biodegradable polymer mixtures, to the use of biodegradable polymer mixtures for the production of molded parts, films or fibers as well as molded parts, and to films or fibers comprising biodegradable polymer mixtures.