Patent · US Active

Spray-dried Ziegler-Natta (pro)catalyst systems

US11248066B2 · kind B2 · utility

1Cited by

24References

9Claims

0Family size

Assignee

Univation Technologies, LLC · US

Inventors

Ian M. Munro · Lake Jackson, US
Wesley R. Mariott · Freeport, US
C. Dale Lester · South Charleston, US
Nitin Borse · Lake Jackson, US
Michael D. Awe · Langhorne, US
Phuong A. Cao · Old Bridge, US
Jesse C. Beilhart · South Charleston, US

Key dates

Filing date	Jun 7, 2019
Grant date	Feb 15, 2022
Priority date	—
Expiry date	Jun 7, 2039

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F4/6555
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Methods of making spray-dried Ziegler-Natta (pro)catalyst systems containing titanium Ziegler-Natta (pro)catalysts, a hydrophobic silica carrier material, and tetrahydrofuran. The spray-dried Ziegler-Natta (pro)catalyst systems made by the method. Methods of polymerizing olefin (co)monomer(s) with the spray-dried Ziegler-Natta catalyst system to make polyolefin polymers, and the polyolefin polymers made thereby.

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