Biodegradable film with a lactic acid polyester fluidized with a nitrogen component

A film consisting of a polymer composition comprising:

• i) 65-89% by weight, compared to the sum of components i.-iv., of at least one polyester comprising:
• a. a dicarboxylic component containing with respect to the total dicarboxylic component:
• a1) 0-60% in moles of units derived from at least one aromatic dicarboxylic acid;
• a2) 40-100% in moles of units derived from at least one saturated aliphatic dicarboxylic acid;
• a3) 0-5% in moles of units derived from at least one unsaturated aliphatic dicarboxylic acid;
• b. a diol component comprising with respect to the total diol component:
• b1) 95-100% in moles of units derived from at least one saturated aliphatic diol;
• b2) 0-5% in moles of units derived from at least one unsaturated aliphatic diol;
• and
• ii) 10-34.995% by weight, relative to the sum of components i.-iv, of one or more fluidised lactic acid polyesters.
• iii) 0.005-1% by weight of the sum of the components i.-iv. of at least one nitrogen component selected from:
• a nitrogen compound of formula (I)
• where each of R1 and R2 individually is OH or NH2, and R3 is OH, NH2, C1-C4 alkyl or a halogen, with the condition that if R1 and R2 are OH, then R3 is also OH;
• or a linear amine NH—R4-R5 where R4 is C1-C4 alkyl and R5 is NH2 or C1-C4 alkyl.
• (iv) 0-1% by weight, compared to the sum of components i.-iv, of at least one cross-linking agent and/or chain extender.