Heterogeneous anionic polymerization process

Details Heterogeneous anionic polymerization process Heterogeneous anionic polymerization process

1978-03-02

1978-12-19

Hamrock, William F.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526335, 526340, 526913, C08F 402, C08F 408, C08F 3606, C08F 3608

Patent

active

041307038

ABSTRACT:
The present invention relates to a heterogeneous anionic polymerization process, catalysed by a metallic insertion graphitic compound. According to the invention, the alkaline metal chosen for the insertion compound is lithium, and the insertion compounds are of binary or ternary type; in the latter case, the insertion compound may comprise an aromatic hydrocarbon also inserted within the graphitic structure. The invention relates in particular to the homopolymerization of butadiene or isoprene, and to the copolymerization of isoprene-styrene.

REFERENCES:
patent: 2965624 (1960-12-01), Anderson
patent: 3479300 (1969-11-01), Rivin et al.

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