Method for preparing polybutadiene endowed with improved...

Details Method for preparing polybutadiene endowed with improved... Method for preparing polybutadiene endowed with improved...

C - Chemistry, Metallurgy

08

F

402/446

C08F 2/06 (2006.01) C08C 19/00 (2006.01) C08F 136/06 (2006.01)

Patent

CA 2010284

The processability of a polybutadiene with a high content of 1,4-cis-structure is improved by means of the addition of PCl3 before the polymerization reaction is quenched and when Mooney viscosity of polybutadiene has reached a prefixed value, preferably lower than, or equal to 30; the polymerization of butadiene is carried out in a solution in an aliphatic or cycloaliphatic solvent, in the presence of a catalytic system based an rare earths, preferably a neodymium-based catalytic system.

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