Process for producing terpolymers of propylene, ethylene and ano

Details Process for producing terpolymers of propylene, ethylene and ano Process for producing terpolymers of propylene, ethylene and ano

1983-02-25

1984-11-20

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

502127, 526114, 526116, 526119, 526122, 526127, 526137, 526139, 526140, 526141, 5263482, 5263485, 5263486, 526904, 525268, C08F 464, C08F21002

Patent

active

044839715

ABSTRACT:
A process for producing terpolymers of propylene (as a main monomer), ethylene and another .alpha.-olefin having superior and well-balanced physical properties, almost without forming soluble polymer is provided.
This process is characterized by preliminarily activating a catalyst consisting of a titanium trichloride composition and a specified organoaluminum halide, with a small amount of an .alpha.-olefin of 2 to 12 carbon atoms, a trialkylaluminum and an aromatic ester, and copolymerizing specified amounts of propylene, ethylene and an .alpha.-olefin of 4 to 12 carbon atoms in the presence of the preliminarily activated catalyst obtained above.

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patent: 4309521 (1982-01-01), Sato et al.
patent: 4367322 (1983-01-01), Shiga et al.

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