Method for producing polybutadiene having an enhanced mechanical

Details Method for producing polybutadiene having an enhanced mechanical Method for producing polybutadiene having an enhanced mechanical

1983-09-22

1985-03-05

Michl, Paul R.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526136, C08F 470

Patent

active

045032025

ABSTRACT:
Polybutadiene consisting of from 5% to 30% by weight of a boiling n-hexane-insoluble fraction and from 70% to 95% by weight of a boiling n-hexane-soluble fraction and having enhanced mechanical strength is prepared by polymerizing 1,3-butadiene in a polymerization solvent in the presence of a specific catalyst consisting essentially of (A) a cobalt compound catalytic component soluble in the polymerization solvent; (B) an organic aluminum halide catalytic component; (C) a trialkyl aluminum-water reaction product in catalytic component, and (D) a catalytic component consisting of carbon disulfide and/or phenyl isothiocyanate, and by isolating the resultant polybutadiene from the reaction mixture.

REFERENCES:
patent: 3778424 (1973-12-01), Sugiura
patent: 3901868 (1975-08-01), Ueno
patent: 4429085 (1984-01-01), Henderson

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