Invention Grant
US08642494B2 Fibres and nonwoven prepared from polypropylene having a large dispersity index 失效
由具有大分散指数的聚丙烯制成的纤维和非织造布

Fibres and nonwoven prepared from polypropylene having a large dispersity index
Abstract:
A catalyst system can include a Ziegler-Natta catalyst, an internal donor, a magnesium halide in active form, and an organoaluminium compound. The Ziegler-Natta catalyst can have a titanium compound and at least one titanium-halogen bond. The internal donor can include at least 80 wt % of an enamino-imine with respect to a total weight of the internal donor. The Ziegler-Natta catalyst and the internal donor can both be supported on the magnesium halide in active form.
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