Olefin polymerization process utilizing a combination of selecti

Details Olefin polymerization process utilizing a combination of selecti Olefin polymerization process utilizing a combination of selecti

1984-02-28

1986-01-07

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526141, 526142, 5263486, 526351, 502123, 502126, C08F 402

Patent

active

045635129

ABSTRACT:
In a polymerization of alpha mono-olefins by means of certain supported coordination catalysts systems which comprise (a) a procatalyst, (b) a cocatalyst, and (c) a selectivity control agent, wherein (a) is a highly active solid composition which comprises magnesium chloride, titanium tetrachloride and an electron donor; and (b) is an aluminum trialkyl; the selectivity control agent comprises a strong selectivity control agent and a weak selectivity control agent.

REFERENCES:
patent: 4211670 (1980-07-01), Vandenberg
patent: 4309521 (1982-01-01), Sato et al.

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