Patent · US Active

Supported donor modified ziegler-natta catalysts

US9556295B2 · kind B2 · utility

1Cited by

1References

15Claims

0Family size

Assignee

Borealis AG · AT

Inventors

Irfan Saeed · Porvoo, FI
Esa Kokko · Porvoo, FI
Paivi Waldvogel · Porvoo, FI
Marja Mustonen · Merijärvi, FI
Thomas Garoff · Helsinki, FI

Key dates

Filing date	Apr 28, 2014
Grant date	Jan 31, 2017
Priority date	—
Expiry date	Apr 28, 2034

Classification

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

Abstract

Procatalyst comprising an inorganic support, a chlorine compound carried on said support, a magnesium compound carried on said support, a titanium compound carried on said support, and a compound comprising two oxygen containing rings, wherein said two rings are linked via a bridge selected from the group consisting of carbon bridge, silicon bridge, ethane-1.2-diyl bridge, ethene-1,2-diyl bridge, alkylaminomethyl bridge and imine bridge.

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