Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1982-09-15
1984-11-27
Garvin, Patrick
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502105, 502128, 526125, C08F 464
Patent
active
044851871
ABSTRACT:
A catalyst for polymerizing ethylene and .alpha.-olefins and process for producing ethylene polymers which comprises homopolymerizing ethylene or copolymerizing ethylene and other olefins in the presence of a catalyst comprising a catalyst component and an organoaluminum compound, said catalyst component being obtained by mechanically copulverizing (A) a magnesium halide and (B) magnesium hydrocarbyloxide at a molar ratio of B/A=0.5 to 1.5 and subsequently bringing the resulting pulverized product into contact with a tetravalent titanium halide in the presence of a hydrocarbon and/or halogenated hydrocarbon.
REFERENCES:
patent: 3412174 (1968-11-01), Kroll
patent: 3644318 (1972-02-01), Diedrich et al.
patent: 4240929 (1980-12-01), Dietz et al.
patent: 4362648 (1982-12-01), Dietz et al.
Inaba Naomi
Maruyama Kouji
Nomura Takeshi
Ueno Hiroshi
Yoda Makota
Garvin Patrick
Kurtzman M. B.
Toa Nenryo Kogyo Kabushiki Kaisha
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