Process for polymerizing olefins and catalysts therefor

Details Process for polymerizing olefins and catalysts therefor Process for polymerizing olefins and catalysts therefor

1978-05-04

1981-02-10

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, 252431R, 526121, 526122, 526142, 526906, 526143, 526150, 526151, 526351, C08F 402, C08F 1006

Patent

active

042502853

ABSTRACT:
A process for preparing a polymer or copolymer of an olefin having at least 3 carbon atoms which comprises polymerizing or copolymerizing an olefin having at least 3 carbon atoms and containing 0 to 10 mole % of another olefin or diolefin in the presence of a catalyst composed of (i) a solid titanium catalyst component and (ii) an organoaluminum compound; wherein the solid titanium catalyst component is obtained by contacting
(1) a magnesium containing copulverization product comprising (A) an aluminum or germanium compound selected from the group consisting of aluminum compounds of the formula AlR.sub.n X.sub.3-n wherein R is a hydrogen atom, or an alkyl, alkenyl, aryl, alkoxy, aryloxy or acyloxy group optionally having a substituent, X is a halogen atom, and O<n.ltoreq.3, and germanium compounds of the formula GeR.sub.m X.sub.4-m wherein R and X are as defined above, and 0.ltoreq.m.ltoreq.4, (B) a halogen-containing magnesium compound, and (C) an organic acid ester, the compounds (A) and (B), or the compounds (A), (B) and (C) being mechanically copulverized, with
(2) a titanium compound (D) in the liquid phase in the absence of mechanical pulverization.

REFERENCES:
patent: 3991260 (1976-11-01), Matsuura et al.
patent: 4069169 (1978-01-01), Toyota et al.
patent: 4071674 (1978-01-01), Kashiwa et al.
patent: 4076924 (1978-02-01), Toyota et al.
patent: 4107414 (1978-08-01), Giannini et al.

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