Process for polymerizing propylene

Details Process for polymerizing propylene Process for polymerizing propylene

1980-07-16

1982-11-02

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526141, 526142, 526153, 526158, 526159, 526161, C08F 464, C08F 1006

Patent

active

043574521

ABSTRACT:
Propylene is polymerized in the presence of a catalytic system of the type which comprises a solid titanium trichloride-based complex serving as a catalyst, said complex having an atomic ratio of aluminum to titanium in the range of below 0.15:1 and containing a complexing agent, and an organic aluminum compound of the general formula, AlR.sup.1.sub.n Cl.sub.3-n wherein R.sup.1 represents an n-propyl group or an n-hexyl group and n is a value of 1.95-2.10. The catalytic system may further comprise an electron-donor compound as a third catalytic component.

REFERENCES:
patent: 4060593 (1977-11-01), Kozuo et al.
patent: 4123387 (1978-10-01), Shiga et al.
patent: 4127504 (1978-11-01), Ueno et al.
patent: 4127505 (1978-11-01), Ueno et al.
patent: 4136243 (1979-01-01), Appleyard et al.
patent: 4151112 (1979-04-01), Wristers
patent: 4258161 (1981-03-01), Kakogawa et al.

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