Process for polymerizing propylene with an improved titanium chl

Details Process for polymerizing propylene with an improved titanium chl Process for polymerizing propylene with an improved titanium chl

1980-07-10

1982-05-18

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526139, 526140, 526141, 526142, 526143, 526351, C08F 464, C08F 1006

Patent

active

043306527

ABSTRACT:
Propylene is polymerized with an improved titanium chloride catalyst. The improved titanium chloride catalyst is prepared by treating TiCl.sub.4 with an aluminum alkyl and treating the resulting titanium chloride catalyst with carbon dioxide and a Lewis base, such as di(n-butyl) ether in a hydrocarbon medium at an elevated temperature.

REFERENCES:
patent: 3825524 (1974-07-01), Wada et al.
patent: 4208497 (1980-06-01), Bronstert et al.
patent: 4282341 (1981-08-01), Klaener et al.
Roff et al., Crystallin Olefin Polymers, Interscience Pub., N.Y. vol. XX, Part I, p. 371 (1965).

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