Polymerization process employing metal halide catalyst and polym

Details Polymerization process employing metal halide catalyst and polym Polymerization process employing metal halide catalyst and polym

1992-09-22

1994-06-21

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526352, C08F 4654, C08F 4655, C08F 1000

Patent

active

053229118

ABSTRACT:
A polymerization catalyst is formed by producing a solution of a Group IIA or Group IIB halide and an alcohol; contacting the solution with an organometallic compound to form a soluble complex; and contacting the soluble complex with a halide ion exchanging source. An ester or an anhydride can also be combined with the halide solution or the soluble complex. The catalyst thus produced can be combined with an organometallic cocatalyst.

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"Modification of Catalysts for Propylene Polymerization: Alcohols and Lewis Bases", Journal of Polymer Science: Polymer Chemistry Edition, vol. 22, 3239-3246 (Sivak and Kissin 1984).

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