Process for polymerizing olefins in the presence of a catalyst p

Details Process for polymerizing olefins in the presence of a catalyst p Process for polymerizing olefins in the presence of a catalyst p

1979-06-25

1981-01-20

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, 252429C, 252431R, 252431C, 526116, 526119, 526138, 526142, 526352, C08F 450, C08F 454

Patent

active

042463831

ABSTRACT:
Solid supported catalysts which can be employed for the polymerization of .alpha.-olefins are prepared by (A) reacting in the presence of a diluent such as n-hexane a mixture of (1) the reaction product of (a) an organo magnesium compound such as dibutyl magnesium and (b) at least one of water, carbon dioxide or an organic, oxygen-containing compound such as n-propyl alcohol; and (2) a transition metal halide such as titanium tetrachloride and (B) recovering the solid precipitate such as by decanting and (C) washing the solid with a solvent such as n-hexane. The resultant solid supported catalyst contains sufficient transition metal which when activated with a suitable activating agent serves as a polymerization catalyst for .alpha.-olefins. The polymers prepared employing these catalysts have a relatively narrow molecular weight distribution and low residual amounts of transition metal and halides.

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