Production of catalyst component for alpha-olefin polymerization

Abstract

PURPOSE: To obtain the titled catalyst component capable of providing a stereoregular polymer in high yields, by suspending a dialkoxymagnesium in a liquid halohydrocarbon and successively contacting it with a titanium halide and a carboxylic ester. CONSTITUTION: A dialkoxymagnesium of the formula: Mg(OR) 2 (wherein R is alkyl, cycloalkyl, or aryl), e.g., diethoxymagnesium, is suspended in a liquid 1C halohydrocarbon (e.g., methylene chloride). The obtained suspension is contacted with a titanium halide of the formula TiX 4 (wherein X is a halogen), e.g., titanium tetrachloride or titanium tetrabromide, and at the same time said suspension is contacted also with a carboxylic ester (e.g., ethyl benzoate or ethyl toluylate) to obtain the purpose highly active catalyst component for use in α-olefin polymerization. COPYRIGHT: (C)1985,JPO&Japio

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Patent Citations (5)

    Publication numberPublication dateAssigneeTitle
    JP-S55152710-ANovember 28, 1980Shell Int ResearchOlefin polymerization catalyst composition and olefin polymerization therewith
    JP-S5912904-AJanuary 23, 1984Toho Titanium Co LtdPreparation of catalytic component for polymerizing alpha-olefin
    JP-S59179508-AOctober 12, 1984Toa Nenryo Kogyo KkPreparation of ethylene copolymer
    JP-S59179510-AOctober 12, 1984Toa Nenryo Kogyo KkPreparation of ethylene copolymer
    JP-S59221308-ADecember 12, 1984Toho Titanium Co LtdPreparation of catalytic component for polymerizing alpha-olefin

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Cited By (1)

    Publication numberPublication dateAssigneeTitle
    JP-H01294713-ANovember 28, 1989Shin Etsu Chem Co LtdManufacture of vinyl chloride polymer