Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1981-05-14
1982-12-07
Shine, W. J.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252467, 252470, B01J 2106, B01J 2322, B01J 2326, B01J 2386
Patent
active
043626548
ABSTRACT:
Inorganic oxide supported chromium-containing catalysts are improved by depositing the chromium onto the inorganic oxide support in the vapor phase rather than as an inorganic or organic compound. Polymers resulting from polymerizing one or more .alpha.-olefins in the presence of such catalysts exhibit a higher molecular weight as compared to those polymers prepared in the presence of such chromium-containing catalysts prepared in the conventional manner.
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Werber; Polymerization of Olefins on Supported Catalysts; (1959) pp. 180-191.
Christenson Christopher P.
Guerra Rafael E.
Vance, Jr. Fred L.
Carter J. G.
Shine W. J.
The Dow Chemical Company
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