Patent · US Active

Supported Ziegler Natta procatalyst for ethylene polymerisation

US10457758B2 · kind B2 · utility

4Cited by

5References

12Claims

0Family size

Assignee

Borealis AG · AT

Inventors

Kumudini C. Jayaratne · Helsinki, FI
Elina Hamalainen · Helsinki, FI
Kalle Kallio · Porvoo, FI

Key dates

Filing date	Dec 20, 2013
Grant date	Oct 29, 2019
Priority date	—
Expiry date	Dec 20, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F210/16
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Supported Ziegler-Natta ethylene polymerization procatalyst comprising special bi-(oxygen containing ring) compounds as internal donor, as well as a process for preparing the same and use of such a procatalyst for preparing a catalyst system used in the polymerization of ethylene for producing high molecular weight polyethylenes.

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