POLYPROPYLENE RESIN-BASED FORMULATION

摘要

A polypropylene resin-based formulation comprising the following constituents: -between 50 and 90 parts by weight of a propylene/ethylene copolymer, -between 9 and 20 parts by weight of a mixture of mineral fillers comprising 40 to 80% of talc and 20 to 60% of fillers of the group comprising microspheres, fibres and microtalcs, -between 0.1 and 10 parts by weight of a blowing agent, wherein the parts by weight of the various constituents of the formulation are chosen such that the sum is 100 parts by weight, the formulation having a melt flow rate MFR of between 0 g/10 min and 200 g/10 min and a density before expansion of the blowing agent of between 0.95 g/cm3 and 1 g/cm3.