US 2023/0143086 A1 · Catalyst components for the preparation of highly isotactactic polypropylene polymer with broad molecular weight distribution

Abstract

The present invention relates to a solid catalyst component comprising magnesium, titanium, halide, and internal electron donor compounds comprising dilakylurea, malonate, succinate, and 1,3-diether, wherein the succinate amount is less than about 30% by mol with respect to the total amount of electron donor, the molar ratio between succinate and 1,3-diether is in the range of about 0.1-0.5, and the molar ratio between malonate and 1,3-diether is in the range of about 0.5-2.5. The catalyst component according to present invention provides highly isotactic polypropylene polymer with broad molecular weight distribution.

Claims5

Dependent claims

A solid catalyst component for the Ziegler-Natta polymerization or co-polymerization of alpha-olefins, comprising internal electron donors comprising a dialkylurea compound, a malonate compound, a succinate compound, and a 1,3-diether compounds;

wherein the succinate compound is less than 30% by mol with respect to total amount of internal electron donors;
wherein the molar ratio between the succinate compound and the 1,3-diether compound is in the range of about 0.1-0.5;
and
wherein the molar ratio between the malonate compound and the 1,3-diether compound is in the range of about 0.3-2.5.

1 more element

Dependencies are inferred from the claim text.

Catalyst components for the preparation of highly isotactactic polypropylene polymer with broad molecular weight distribution

Life of this patent

Catalyst components for the preparation of highly isotactactic polypropylene polymer with broad molecular weight distribution

Life of this patent

Abstract

Claims5