Method for producing olefin polymers

Details Method for producing olefin polymers Method for producing olefin polymers

1980-05-21

1982-04-13

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, 526 97, 526114, 526116, 526119, 526121, 526122, 526124, 526125, 526348, 5263486, 526351, 526352, C08F 402, C08F 1000

Patent

active

043248756

ABSTRACT:
A method for producing .alpha.-olefin polymers or copolymers by the use of an improved catalyst consisting of a combination of an organoaluminum compound with a specified solid product (III) which is produced by reacting a trivalent metal halide with a divalent metal hydroxide, oxide, carbonate, or a composite compound containing the foregoing compound(s) or a hydrate of a compound containing a divalent metal; reacting the resultant solid product (I) with a transition metal compound in the presence of an electron donor to produce a solid product (II); and further reacting said solid product (II) with a halogen-containing transition metal compound and a halogen-free transition metal compound.

REFERENCES:
patent: 3987233 (1976-10-01), Sato et al.
patent: 4109071 (1978-08-01), Berger et al.
patent: 4154701 (1979-05-01), Melquist
patent: 4180636 (1979-12-01), Hirota et al.
patent: 4252670 (1981-02-01), Count et al.
patent: 4260723 (1981-04-01), Harada et al.

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