High-vinyl homopolymers and copolymers of butadiene

Details High-vinyl homopolymers and copolymers of butadiene High-vinyl homopolymers and copolymers of butadiene

1977-01-31

1978-08-01

Hamrock, William F.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526180, C08F 446

Patent

active

041044657

ABSTRACT:
The invention relates to the production of high molecular weight polymers of broad molecular weight distribution by using a sodium catalyst in the presence of a chelating diamine in the polymerization of (1) conjugated dienes, (2) a mixture of conjugated dienes and (3) a mixture of conjugated diene and vinyl monomer. Lithium and potassium alkoxides speed up the reaction.

REFERENCES:
patent: 3451988 (1969-06-01), Langer
patent: 3647803 (1972-03-01), Schlott et al.
patent: 3931127 (1976-01-01), Halasa et al.
patent: 3966691 (1976-06-01), Halasa

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