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MAO-Free Activation of Metallocenes and other Single-Site Catalysts for Ethylene Polymerization using Spherical Supports based on MgCl2

✍ Scribed by John R. Severn; John C. Chadwick

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
162 KB
Volume
25
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

Summary: Supports of type MgCl~2~/AlR~n~(OEt)~3−n~, obtained by reaction of AlR~3~ with adducts of MgCl~2~ and ethanol, have been shown to be effective for the immobilization and activation of [Cp~2~TiCl~2~] and other single‐site olefin polymerization catalysts without the use of methylaluminoxane or a borate activator. Polyethylene with a spherical particle morphology and narrow molecular weight distribution was obtained.

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Activation of Titanium-Based Single-Site Catalysts for Ethylene Polymerization Using Supports of Type MgCl2/AlRn(OEt)3–n
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## Abstract Summary: Easy and effective immobilization and activation of a range of Ti‐based single‐site catalysts for ethylene polymerization has been achieved, without methylaluminoxane or borate activators, using MgCl~2~/AlR~__n__~(OEt)~3–__n__~ supports obtained by reaction of AlR~3~ with adduc

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Immobilization and Activation of a Single-Site Chromium Catalyst for Ethylene Polymerization using MgCl2/AlRn(OEt)3 − n Supports
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## Abstract **Summary:** The effective immobilization and activation of a single‐site chromium catalyst for ethylene polymerization has been achieved using MgCl~2~/AlR~__n__~(OEt)~3 − __n__~ supports, without the use of methylaluminoxane (MAO) or a borate activator. High catalyst activity and a sph

Spherical MgCl2 Supported Iron Catalyst
Spherical MgCl2 Supported Iron Catalyst for Ethylene Polymerization: Effect of the Preparation Procedure on Catalyst Activity and the Morphology of Polyethylene Particles
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## Abstract Summary: A new procedure was developed to support [(ArNC(Me))~2~C~5~H~3~N]FeCl~2~ (Ar2,4,6‐trimethylphenyl) on spherical MgCl~2~ for ethylene polymerization. The resultant catalysts showed ten times higher activity of the corresponding catalyst in homogeneous catalysis. The morphologi