Butadiene polymerization process

Details Butadiene polymerization process Butadiene polymerization process

1976-03-18

1978-03-21

Michl, Paul R.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526176, 526178, 526335, 526340, C08F 452

Patent

active

040804925

ABSTRACT:
Homopolymers of butadiene and copolymers of butadiene with vinyl aromatic compounds or with other conjugated dienes, which polymers have a high content of trans-1,4 linkages and a low content of 1,2 linkages, are prepared by use of a novel anionic catalytic composition which comprises (a) an organo-lithium initiator and (b) a cocatalyst system comprising a compound of barium or strontium and an organometallic compound of a metal of Group IIB or IIIA of the Mendeleev periodic table of elements.

REFERENCES:
patent: 3095406 (1963-06-01), Short
patent: 3387046 (1968-06-01), Cleary
patent: 3526604 (1970-09-01), Wadsworth
patent: 3631006 (1971-12-01), Hawkins
patent: 3716495 (1973-02-01), Hsieh

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