Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1981-10-22
1983-04-19
Garvin, Patrick
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252429B, 252431R, 526125, 526132, 526134, 526138, 526142, C08F 464
Patent
active
043805086
ABSTRACT:
Compositions consisting of the reaction product or complex resulting from the mixing of (1) a mixture of a transition metal compound such as a tetraalkoxy titanium compound with a non-metallic oxygen-containing compound such as an alcohol and (2) a strongly reducing alkylating agent such as a dialkyl magnesium compound are useful in the preparation of catalysts for polymerizing .alpha.-olefins at ultra-high efficiencies at high polymerization temperatures.
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L. Petkov, R. Dyrtcheva, Ph. Radenkov and D. Dobreva, Organometallics in ethylene polymerization with a catalyst system, TiCl.sub.4 /Al(C.sub.2 H.sub.5).sub.2 Cl/Mg(C.sub.6 H.sub.5).sub.2 :1, Suspension polymerization process.
Birkelbach Donald F.
Shipley Randall S.
Carter J. G.
Garvin Patrick
The Dow Chemical Company
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