Cationic polymerization process

Details Cationic polymerization process Cationic polymerization process

1976-02-03

1977-04-05

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252429A, 252442, 260 4R, 260887, 260897A, 260899, 526281, C08F 1014

Patent

active

040163466

ABSTRACT:
There is provided a process for cationically polymerizing or co-polymerizing batchwise or continuously .alpha.-pinene by adding .alpha.-pinene either alone or in admixture with other terpene monomers, incrementally to a catalyst system comprising an aluminum halide and an antimony halide in the presence or absence of 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: 1720929 (1929-07-01), Staudinger et al.
patent: 2734047 (1956-02-01), Smith et al.
patent: 2932631 (1960-04-01), Rummelsburg
patent: 3297673 (1967-01-01), Sellers et al.
patent: 3470145 (1969-09-01), Lipman
patent: 3478005 (1969-11-01), Wheeler

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