Polypropylene preparation

Details Polypropylene preparation Polypropylene preparation

C - Chemistry, Metallurgy

08

F

C08F 10/06 (2006.01) C08F 297/06 (2006.01) C08F 297/08 (2006.01) C08F 4/659 (2006.01) C08F 110/06 (2006.01)

Patent

CA 2444902

A propylene polymerization process is disclosed. The process gives polypropylene having isotactic and atactic stereoblock sequences. The process is performed in the presence of a non-bridged bisindenoindol-based single-site catalyst. The polypropylene produced has an isotactic pentad (mmmm) content within the range of about 10 mole % to about 70 mole %.

L'invention concerne un procédé de polymérisation de propylène, qui produit un polypropylène comprenant des stéréoséquences isotactiques et atactiques. Le procédé est réalisé en présence d'un catalyseur monosite non ponté à base de bis-indéno-indole. Le polypropylène obtenu présente une pentavalence isotactique (mmmm) comprise entre environ 10 moles % et 70 moles %.

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