Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1980-09-16
1982-02-09
Garvin, Patrick
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252431R, C08F 464
Patent
active
043149120
ABSTRACT:
Compositions exhibiting high catalytic activity in the polymerization of .alpha.-olefins at temperatures above 140.degree. C. are provided by reacting a transition metal compound such as tetra(isopropoxy)titanium, an organomagnesium component such as a hydrocarbon soluble complex of dialkyl magnesium and an alkyl aluminum, e.g., di-n-butylmagnesium.x triethylaluminum and a hydrogen halide or an active hydrocarbyl halide such as t-butyl chloride. Polymerization processes employing this catalyst composition do not require conventional catalyst removal steps in order to provide polymers having suitable color and other physical characteristics.
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Knight George W.
Lowery, Jr. Kirby
May, Jr. James A.
Garvin Patrick
The Dow Chemical Company
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