Multi-stage process for producing a C2 to C8 olefin polymer composition

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United States of America Patent

PATENT NO 11897975
APP PUB NO 20210317236A1
SERIAL NO

17273325

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Abstract

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The present invention relates to a multi-stage process for producing a C2 to C8 olefin polymer composition in a process comprising at least two reactors, wherein a pre-polymerized solid Ziegler-Natta catalyst is prepared by carrying out an off-line pre-polymerization of a solid Ziegler-Natta catalyst component with a C2 to C4 olefin monomer before feeding to the polymerization process.

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Patent Owner(s)

Patent OwnerAddress
BOREALIS AGAUSTRIA LENZING UPPER AUSTRIA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Elovainio, Erno Porvoo, FI 22 14
Kanellopoulos, Vasileios Linz, AT 28 37
Nyfors, Klaus Porvoo, FI 32 96
Sumerin, Victor Porvoo, FI 30 27
Tupe, Ravindra Porvoo, FI 21 28

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