Process for producing an improved ethylenic polymer

Details Process for producing an improved ethylenic polymer Process for producing an improved ethylenic polymer

1977-12-22

1980-12-30

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, 526128, 526139, 5263485, 5263486, 526352, C08F 402, C08F 1002

Patent

active

042424798

ABSTRACT:
A process for polymerizing ethylene or copolymerizing ethylene with an .alpha.-olefin in the presence of a catalyst comprising: (A) a solid catalyst ingredient obtained by contacting (1) a solid reaction product prepared by reacting (a) a reaction product of an aluminum trihalide with an organic compound containing an Si--O bond and/or an ether compound and (b) a magnesium alcoholate with (2) a tetravalent titanium compound containing at least one halogen atom or further (3) an electron donor compound, and (B) an organo-aluminum compound.

REFERENCES:
patent: 3718636 (1973-02-01), Stevens et al.
patent: 3819599 (1974-06-01), Fotis et al.
patent: 3901863 (1975-08-01), Berger et al.
patent: 3987233 (1976-10-01), Sato et al.
patent: 4071672 (1978-01-01), Kashiwa
patent: 4085276 (1978-04-01), Toyota et al.
patent: 4107416 (1978-08-01), Giannini et al.

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