Propylene-ethylene copolymer having improved stretchability

Details Propylene-ethylene copolymer having improved stretchability Propylene-ethylene copolymer having improved stretchability

1982-07-16

1983-11-08

Levin, Stanford M.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

2642101, 526137, 526142, 5263481, C08F21016

Patent

active

044143737

ABSTRACT:
In a process for producing polypropylene comprising polymerizing propylene in the presence of hydrogen and a catalyst system comprising (A) titanium trichloride obtained by reducing titanium tetrachloride with an organoaluminum compound and reacting the reduced solid with an ether represented by the formula:

REFERENCES:
patent: 3671383 (1972-06-01), Sakata et al.
patent: 4123387 (1978-10-01), Shiga et al.
patent: 4165298 (1979-08-01), Shiga et al.
Translated Abstract-Japanese Pat. App., OPI No. Sho-51-46598.

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