Olefin polymerization with phosphated silica-chromium catalyst w

Details Olefin polymerization with phosphated silica-chromium catalyst w Olefin polymerization with phosphated silica-chromium catalyst w

1982-09-27

1983-08-09

Levin, Stanford M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252428, 252430, 526106, 5263482, 5263485, 5263486, 526352, C08F 402, C08F 462

Patent

active

043980040

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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