Process for producing propylene-ethylene block copolymers

Details Process for producing propylene-ethylene block copolymers Process for producing propylene-ethylene block copolymers

1979-05-22

1981-03-31

Wong, Jr., Harry

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C08F29708

Patent

active

042594618

ABSTRACT:
An improved process for producing propylene-ethylene block copolymer is disclosed utilizing a catalyst system comprising (A) a titanium trichloride solid catalyst obtained by reducing titanium tetrachloride with an organoaluminum compound and activating, (B) an organoaluminum compound, and optionally, (C) an electron donor.

REFERENCES:
patent: 3732335 (1973-05-01), Hermans et al.
patent: 3911052 (1975-10-01), Castagna et al.
patent: 3917746 (1975-11-01), Aishima et al.
patent: 3954704 (1976-05-01), Verne et al.

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