Process for the preparation of low molecular weight copolymers o

Details Process for the preparation of low molecular weight copolymers o Process for the preparation of low molecular weight copolymers o

1995-11-27

1998-03-17

Nagumo, Mark

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By addition of entire unsaturated molecules, e.g.,...

585507, 585513, 585523, 585700, 585728, 585733, 585 16, 585 18, C07C 232, C07C 222, C07C 238

Patent

active

057289115

ABSTRACT:
A copolymer having an RSV less than 0.6 and a process for its preparation in which ethylene, at least one other 1-alkene and, optionally, an aliphatic or alicyclic polyunsaturated monomer are polymerized in the presence of a catalyst system containing (1) a compound of vanadium, (2) at least one alkyl aluminum halide, (3) an .alpha.-halo, ketoaromatic promoter and (4) a chain transfer agent in which the molar ratio of alkyl groups of the alkyl aluminum halide to halogen atoms is at least 1.5.

REFERENCES:
patent: 3574176 (1971-04-01), Boozer
patent: 3645993 (1972-02-01), Sunseri
patent: 4168358 (1979-09-01), Harada et al.
patent: 4435552 (1984-03-01), Evens

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