Patent ID: 8193299

Claim:
A biodegradable aliphatic/aromatic copolyester (AAPE) comprising: A) an acid component comprising repeating units of: 1) 53 to 64 mol %, of an aromatic carboxylic acid; 2) 47 to 36%, of an aliphatic acid at least 50% of which is azelaic acid; B) a diol component selected from the group consisting of C 3 , C 4 and C 6 diols; said AAPE being disintegrated according to the Standard ISO 20200 in 90 days and having: a density of less than 1.22 g/cc a number average molecular weight M n of 40,000-140,000 an inherent viscosity of 0.8-1.5 a Elastic Modulus higher than 100 MPa a polydispersity index determined by means of GPC of between 1.8 and 25.