Method for producing ethylene polymers

Details Method for producing ethylene polymers Method for producing ethylene polymers

1976-08-02

1978-02-28

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252429C, 526114, 526115, 526116, 526119, 526124, 526125, 526352, C08F 402, C08F 1002

Patent

active

040769224

ABSTRACT:
An improvement in the method for producing ethylene polymers by using a catalyst consisting of a combination of a following solid product with an organoaluminum compound is provided.
Said solid product (III) is prepared by reacting a trivalent metal halide with a divalent metal compound; reacting the resulting reaction product with a transition metal compound in the form of liquid; reacting the resulting solid product (I) with an aluminum or boron alcoholate; and reacting the resulting solid product (II) again with a transition metal compound in the form of liquid to obtain said solid product (III).
Ethylene polymers obtained according to this method have broader molecular weight distributions.

REFERENCES:
patent: 3491073 (1970-01-01), Marinak
patent: 3678025 (1972-07-01), Birell
patent: 3900454 (1975-08-01), Sato et al.

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