Manufacturing method of polyolefin
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United States of America Patent
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Jun 2, 1992
Issued Date -
N/A
app pub date -
Jul 5, 1988
filing date -
Jan 21, 1986
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Abstract
A manufacturing method of polyolefin is disclosed wherein the catalyst used for the polymerization of .alpha.-olefins at a temperature lower than the melting point of polymer in the presence of said Ziegler type catalyst and hydrogen comprises of (A) solid catalyst ingredient (A) obtained by allowing the reaction product of (i) at least one member selected from metallic magnesium and hydroxylated organic compounds and oxygen-containing organic compounds of magnesium, (ii) at least one kind of oxygen-containing organic compounds of titanium, (iii) at least one kind of organoaluminum compounds, and/or (iv) at least one kind of silicon compounds to react with (v) at least one kind of halogenated aluminum compounds, (B) at least one kind of catalyst ingredients (B) selected from organometallic compounds, the metal of which belongs to Ia, IIa, IIb, IIIb or IVb group in the periodic table, and (C) at least one kind of catalyst ingredients (C) selected from halogen-containing compounds comprising halogenated hydrocarbons, halogens, interhalogenous compounds and halides of aluminum, tin, lead, phosphorus, antimony and sulfur.
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