Process for the preparaton of elastomeric copolymers of ethylene

Details Process for the preparaton of elastomeric copolymers of ethylene Process for the preparaton of elastomeric copolymers of ethylene

1992-07-09

1994-12-20

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526142, 526282, 526336, 526339, 526905, C08F 4642, C08F21016

Patent

active

053746953

ABSTRACT:
Process for the preparation of elastomeric copolymers of ethylene, wherein ethylene is copolymerized with an .alpha.-olefin, and possibly with a diene as termonomer, in the presence of a Ziegler-Natta catalyst including a solid component of catalyst based on titanium and aluminium, supported on magnesium chloride and obtained, in accordance with a special procedure, in the form of a spherical granular solid. This process produces elastomeric copolymers having a low crystallinity even with a high content of linked ethylene.

REFERENCES:
patent: 3642746 (1972-02-01), Kashiwa et al.
patent: 3901863 (1975-08-01), Berger et al.
patent: 4292200 (1981-09-01), Berger et al.
patent: 4421674 (1983-12-01), Invernizzi et al.
patent: 4843049 (1989-06-01), Invernizzi et al.
patent: 4886770 (1989-12-01), Cuffiani et al.

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