| abstract |
Propylene polymers with 0 to 2.5 wt. % C2- to C10- olefin-comonomers, an Mw of 350,000 to 1,000,000 g/mol, an Mw/Mn of 4 to 10, a proportion by weight of the polymer fraction with a viscosity number of 50 to 1400 ml/g of 20 to 80 % of the whole polymer and a polymer fraction with a viscosity number of 200 to 400 ml/g of 18 to 20 % of the whole polymer, and an isotactic sequence length of 50 to 100. |