Process for the stereospecific polymerization of an alpha olefin

Details Process for the stereospecific polymerization of an alpha olefin Process for the stereospecific polymerization of an alpha olefin

1983-10-26

1984-10-23

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

502125, 526153, 526351, C08F 464, C08F 1006

Patent

active

044789890

ABSTRACT:
A process for the stereospecific polymerization of an alpha olefin with at least three carbon atoms, with a catalyst system comprising (a) a titanium halide, and (b,i) a reaction product of an organoaluminum halide and an aromatic compound or (b,ii) a reaction product of an organoaluminum halide, an aromatic compound and a halogen-free organoaluminum compound, the aromatic compound being a hydroxy aromatic compound which comprises a sec. or tert. alkyl group in both ortho-positions in respect of the hydroxyl group.

REFERENCES:
patent: 3445443 (1969-05-01), Sasaki et al.
patent: 4064334 (1977-12-01), Kuroda et al.
patent: 4069169 (1978-01-01), Toyoda et al.
patent: 4107416 (1978-08-01), Giannini et al.
patent: 4202953 (1980-05-01), Matsuura et al.

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