High-molecular polypropylene with a broad distribution of...

C - Chemistry – Metallurgy – 08 – F

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C08F 10/06 (2006.01) C08F 4/6592 (2006.01)

Patent

CA 2396670

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.

L'invention concerne des polymères de propylène contenant de 0 à 2,5 % en poids de comonomères d'oléfines avec 2 à 10 atomes de carbone, et ayant une masse moléculaire Mw de 350000 à 1000000 g/ml, un rapport masse moléculaire sur nombre moléculaire Mw/Mn de 4 à 10, une partie massique de la fraction polymère ayant un indice de viscosité de 500 à 1400 ml/g de 20 à 80 % du polymère entier, une fraction polymère ayant un indice de viscosité de 200 à 400 ml/g de 80 à 20 % du polymère entier, et une longueur séquentielle isotactique de 50 à 100.

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