Process for isomerization of lower polymers of butadiene

Details Process for isomerization of lower polymers of butadiene Process for isomerization of lower polymers of butadiene

1975-05-15

1978-04-18

Hamrock, William F.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

260680B, C08F 842, C08F 832

Patent

active

040852636

ABSTRACT:
When a lower polymer of butadiene or a lower copolymer of butadiene with a conjugated diolefin other than butadiene or a vinyl-substituted aromatic comonomer is reacted at 0.degree. to 200.degree. C. in the presence of a combination catalyst including an organic alkali metal compound and a specific diamino compound, the non-conjugated double bonds are effectively isomerized to the conjugated diene double bonds at a very high conversion, and a polymer having a high reactivity, which is useful as a paint vehicle, a thermosetting material, an adhesive, a rubber compounding material and an intermediate for various synthetic reactions, can be obtained.

REFERENCES:
patent: 3278441 (1966-10-01), Manuel et al.
patent: 3492369 (1970-01-01), Naylor
patent: 3647803 (1972-03-01), Schlott et al.
patent: 3751384 (1973-08-01), Langer
patent: 3931126 (1976-01-01), Naylor
patent: 3976628 (1976-08-01), Halasa et al.

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