Catalytic system and process for the production of polydiolefins

Details Catalytic system and process for the production of polydiolefins Catalytic system and process for the production of polydiolefins

1995-08-17

1997-08-19

Caldarola, Glenn A.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

Diolefin product

585530, 585532, 585600, C07C 238

Patent

active

056591012

ABSTRACT:
A catalytic system to polymerize diolefinic monomers consists of a lanthanide salt, an organometallic compound of a metal belonging to groups I, II and III of the periodic table of elements and an organometallic compound of boron. The polymers obtained are characterized in that they have a high degree of 1,4 chain units and ratio between 1.4-cis/1,4-trans units which can vary as desired, and also a narrow molecular weight distribution.

REFERENCES:
patent: 4242232 (1980-12-01), Sylvester et al.
patent: 5096970 (1992-03-01), Hattori et al.
patent: 5272236 (1993-12-01), Lai et al.
patent: 5347024 (1994-09-01), Nickias et al.

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