| abstract |
The present invention relates to preparation by transesterification of bisphenols and diaryl carbonates and having a viscosity-average molecular weight Mv of 22000 to 32000 g/mol, a polydispersity defined as Mw/Mn of 1.8-3.2, according to ASTM D 1238 (1.2 kg , 300° C.), a melt flow index of 3.0‑10 g/10 min, an amount of Friesian branching of 750 to 2500 ppm for the manufacture of aromatic polycarbonates having at least 15 by means of injection blow molding or extrusion blow molding The use of bottles with a volume of liters. |