Process of producing ethylene-propylene rubbery copolymer

Details Process of producing ethylene-propylene rubbery copolymer Process of producing ethylene-propylene rubbery copolymer

1990-12-26

1992-07-28

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526136, 5263484, 526348, 526938, C08F 4649, C08F21016

Patent

active

051342090

ABSTRACT:
Ethylene-propylene rubbery copolymers having a high degree of random polymerization are produced by employing a high activity, stereoregular polymerization catalyst comprising a titanium halide-containing procatalyst, an organoaluminum compound cocatalyst and a moderately hindered aromatic nitrogen heterocycle as selectivity control agent. The ethylene-propylene copolymer has good properties and exhibits improved processability.

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patent: 4377671 (1983-03-01), Makino et al.
patent: 4506061 (1985-03-01), Makino et al.
patent: 4728705 (1988-03-01), Nestlerode et al.
patent: 5001205 (1991-03-01), Hoel
Fred W. Billmeyer, Jr., "Textbook of Polymer Chemistry", University of Delaware and Polychemicals Department, E. I. Du Pont de Nemours & Co., Inc., 1957

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