Patent · US Active

Catalysts for synthesizing a polypropylene with a wide molecular weight distribution and use of the same

US7723449B2 · kind B2 · utility

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1References

11Claims

0Family size

Assignee

Changchun Institute of Applied Chemistry Chinese Academy of Sciences · CN

Inventors

Chunyu Zhang · Longbeilingcun, CN
Hongguang Cai · Changchun, CN
Bin Chen · Changchun, CN
Yuping Yuan · Changchun, CN
Qiaofeng Zhang · Changchun, CN
Weimin Dong · Palo Alto, US
Xuequan Zhang · Jicheon-myeon, KR

Key dates

Filing date	Jul 3, 2008
Grant date	May 25, 2010
Priority date	—
Expiry date	Aug 14, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/52
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a catalyst for synthesizing a polypropylene with a wide molecular weight distribution and use of the same. The catalyst comprises magnesium halide, titanium-containing compound, and an organic phosphate type electron donor compound. By the catalyst according to the present invention, a propylene polymer with a wide molecular weight distribution, easily controllable isotacticity and good processing properties can be synthesized.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.