Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Patent
1983-01-27
1984-11-06
Konopka, P. E.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
502210, 526134, 526156, 526352, C08F 402, C08F 462
Patent
active
044813023
ABSTRACT:
A catalyst system suitable for olefin polymerization comprising a mixed phosphate base made up of 75-99 mole percent aluminum phosphate and 1 to 25 mole percent of a phosphate of at least one other metal selected from gallium, yttrium, zirconium, lanthanum, neodymium and thorium in conjunction with an organoboron cocatalyst. The resulting catalyst system is capable of giving ethylene polymer having relatively low melt index and at the same time exhibits great sensitivity to molecular weight control agents so as to enable the production of a broad spectrum of polymers so far as melt index is concerned from a single catalyst system.
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Johnson Marvin M.
McDaniel Max P.
Konopka P. E.
Phillips Petroleum Company
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