Process for the polymerization of alpha olefins

Details Process for the polymerization of alpha olefins Process for the polymerization of alpha olefins

1987-05-04

1989-08-15

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526124, 526127, 526142, 526151, 526152, 526290, 5263484, 5263485, 5263486, 526351, 526906, C08F 448, C08F 446, C08F 1006

Patent

active

048576123

ABSTRACT:
A process for the stereoregular polymerization of alpha olefins which comprises polymerizing an alpha olefin having from 2 to 8 carbon atoms in the presence of a catalyst comprising: (a) a solid supported titanium tetrahalide complex, wherein said complex is prepared by contacting a mechanically pulverized solid support with titanium tetrahalide in the absence of mechanical pulverization, and (b) a cocatalyst comprising a mixture of a dialkyl aluminum halide and a dialkyl magnesium or alkyl lithium compound.

REFERENCES:
patent: 3287335 (1966-11-01), Stuetz
patent: 4143223 (1979-03-01), Toyota et al.
patent: 4283515 (1981-08-01), Gibbs
patent: 4383938 (1983-05-01), Langer, Jr.
patent: 4404343 (1983-09-01), Hoff
patent: 4567154 (1986-01-01), Bacskai
patent: 4675303 (1987-06-01), Bacskai
patent: 4680350 (1987-07-01), Greco
Chem. Abs. 96: 69614c (1982).

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