Olefin polymerization process and catalyst

Details Olefin polymerization process and catalyst Olefin polymerization process and catalyst

1976-01-09

1977-05-03

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252429B, 252429C, 252431R, 252431C, 526125, 526348, 526350, 526352, 526904, C08F 402, C08F 1002

Patent

active

040215997

ABSTRACT:
Ziegler-type catalysts of enhanced activity are produced by (1) suspending a finely divided polymeric support such as polyethylene in an alkanol solution of a magnesium compound such as magnesium chloride, (2) vaporizing the alkanol to deposit the magnesium compound on the support, (3) treating the magnesium compound impregnated support with a transition metal halide such as titanium tetrachloride in a hydrocarbon medium, and (4) reacting the product of (3) with an organometallic compound such as triethyl aluminum. The catalysts are particularly useful in polymerizing mono-1 olefins such as ethylene.

REFERENCES:
patent: 2981725 (1961-04-01), Luft et al.
patent: 3300457 (1967-01-01), Schmid et al.
patent: 3642746 (1972-02-01), Kashiwa et al.
patent: 3644318 (1972-02-01), Diedrich et al.
patent: 3676414 (1972-07-01), Diedrich et al.
Mitsui, Derwent Abstract 35807 T-A, May 31, 1972.

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