peelable and sealable polylactic acid film

multilayer film formed by a base layer and at least a peelable top layer, wherein the base layer contains a crystalline polylactic acid having an elation of lactic acid units D lactic acid units L in the range of <10 : 90 and having a softening zone of 100-170 ° C and a melt flow index (DIN 53735-2.16 N load and 190 ° measurement) from 1 to 25 g / 10 min and the cover layer contains 30 - 80% by weight of an amorphous polymer a of at least one amorphous polylactic acid that includes 10 - 20% lactic acid units D and 80 - 90% of units of L-lactic acid and 20 to 70 wt% a biodegradable polymer B different from a, wherein the polymer B starch, cellulose or a degradable polyester and the top layer has a thickness of at least 3 microns and the top layer peelable allows sealing temperature range of 85-120 ° C against itself with a resistance seam sealing 1 to 5 N / 15mm when sealing is performed with a sealing time of 0.5 s and a sealing pressure of 10 N / cm2.