Process for the stereoregular polymerization of .alpha.-olefins

Details Process for the stereoregular polymerization of .alpha.-olefins Process for the stereoregular polymerization of .alpha.-olefins

1980-07-28

1982-02-02

Levin, Stanford M.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252429B, 526348, 526351, C08F 464

Patent

active

043140467

ABSTRACT:
A supported titanium catalyst, adaptable for use in the stereoregular polymerization of .alpha.-olefins, is produced by treating a supported titanium-containing solid, obtained by cogrinding a magnesium halide, tetravalent titanium halide and organic acid ester, with a hydrocarbon, organo halogen compound or mixture thereof with heating. The resulting supported titanium catalyst, when employed as a titanium component with an organo aluminum catalyst component for the catalyst system in a process for stereoregular polymerization of .alpha.-olefins, produces high polymerization activity and unexpectedly high stereoregular polymer yielding ratios.

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