Method for the polymerization or copolymerization of .alpha.-ole

Details Method for the polymerization or copolymerization of .alpha.-ole Method for the polymerization or copolymerization of .alpha.-ole

1976-08-30

1978-03-14

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, 526142, 526144, 526158, 5263486, 526351, 526906, C08F 466, C08F 1006

Patent

active

040791750

ABSTRACT:
A method for the polymerization or copolymerization of .alpha.-olefin wherein .alpha.-olefin is polymerized or copolymerized in the presence of a catalyst essentially comprising a reformed titanium trichloride and an organoaluminum compound. The reformed titanium trichloride is prepared by simultaneously pulverizing an organoaluminum compound and a crystalline titanium trichloride compound, the latter comprising titanium trichloride and aluminum trichloride, treating the pulverized mixture with a solvent selected from aromatic hydrocarbons, aromatic hydrocarbon halides and organic ethers, separating the treated material from the solvent, and heating the separated material.

REFERENCES:
patent: 3034992 (1962-05-01), Tornquist et al.
patent: 3164577 (1965-01-01), Liebman et al.
patent: 3461083 (1969-08-01), Luciani et al.
patent: 3639375 (1972-02-01), Staiger et al.
patent: 3701763 (1972-10-01), Wada et al.
patent: 3850899 (1974-11-01), Wada et al.
patent: 3897407 (1975-07-01), Shirai et al.

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