Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1981-06-01
1983-03-08
Garvin, Patrick
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252429C, 252430, 252441, 526114, C08F 464
Patent
active
043760651
ABSTRACT:
Dual transition metal compounds containing zirconium and chromium are prepared by reacting a tetrahydrocarbyloxy zirconium compound such as tetraisopropoxy zirconium or a tetravalent hydrocarbyloxy zirconium halide such as triisopropoxy zirconium halide with a chromium compound such as CrO.sub.3. These compounds, as well as combinations of other soluble chromium and zirconium compounds, are useful in the polymerization of .alpha.-olefins to produce polymers having a high molecular weight and a narrow molecular weight distribution.
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Shipley Randall S.
Vance, Jr. Fred L.
Carter J. G.
Garvin Patrick
The Dow Chemical Company
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