POLYETHYLENE MOLDING COMPOSITION FOR PRODUCING HOLLOW CONTAINERS BY THERMOFORMING AND FUEL CONTAINERS PRODUCED THEREWITH

摘要

The present invention relates to a polyethylene molding composition which has a multimodal molar mass distribution and is particularly suitable for thermoforming to produce fuel containers having a capacity in the range from 20 to 200 l. The molding composition has a density at a temperature of 23°C in the range from 0.948 to 0.953 g/cm3 and an MFR190/21.6 in the range from 4.5 to 6 g/10 min. It comprises from 40 to 50 % by weight of a low molecular weight ethylene homopolymer A, from 35 to 45 % by weight of a high molecular weight copolymer B of ethylene and another olefin having from 4 to 8 carbon atoms and from 10 to 25 % by weight of an ultrahigh molecular weight ethylene copolymer C.