Phosphated silica-chromium catalyst with boron-containing cocata

Details Phosphated silica-chromium catalyst with boron-containing cocata Phosphated silica-chromium catalyst with boron-containing cocata

1980-12-31

1982-12-21

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252428, 526106, 526129, 526134, C08F 402, C08F 462

Patent

active

043648401

ABSTRACT:
A catalyst system suitable for olefin polymerization comprising a catalyst component made up of chromium on a phosphated silica-containing base and a boron-containing cocatalyst. The resulting catalyst is particularly sensitive to the effects of hydrogen as a molecular weight control agent, thus allowing the production of polymers of having a melt flow varying over a wide spectrum utilizing the same catalyst.

REFERENCES:
patent: 2945015 (1960-07-01), Detter
patent: 3794628 (1974-02-01), Bower
patent: 3806500 (1974-04-01), Karol
patent: 3875132 (1975-04-01), Kruse

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