Polymerization of .alpha.-pinene

Details Polymerization of .alpha.-pinene Polymerization of .alpha.-pinene

1975-09-16

1977-11-08

Michl, Paul R.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252463, 526281, C08F 458

Patent

active

040576825

ABSTRACT:
There is provided a process for polymerizing .alpha.-pinene by adding the same incrementally to a catalyst system comprising a major amount of an aluminum halide and a minor amount of an organo germanium halide or alkoxide in admixture with a (lower) alkyl, alkenyl or aralkyl halide in an inert solvent while controlling the temperature of reaction in the range of -30.degree. C. to +30.degree. C., drowning the polymerization mixture in water, separating the organic phase therefrom, removing the solvent therefrom, and recovering a solid polymer in good yield.

REFERENCES:
patent: 3210334 (1965-10-01), Carrick
patent: 3278508 (1966-10-01), Kahle
patent: 3313865 (1967-04-01), Vohwinkel
patent: 4011385 (1977-03-01), Wang

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