Cationic polymerization of piperylene using as the catalyst syst

Details Cationic polymerization of piperylene using as the catalyst syst Cationic polymerization of piperylene using as the catalyst syst

1977-03-08

1978-07-04

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

260 5, 260887, 260889, 260890, 260892, 526308, 526335, 526337, C08F 400, C08F 3604

Patent

active

040989828

ABSTRACT:
There is provided a process for cationically polymerizing piperylene batchwise or continuously by the addition of piperylene either alone or in admixture with a minor amount of at least another hydrocarbon monomer, incrementally, to a catalyst system consisting essentially of a major amount of an aluminum halide and a minor amount of an inorganic phosphorus acid in an inert solvent while controlling the temperature of reaction in the range of 0.degree. C. to 50.degree. C., drowning the polymerization mixture in water, separating the organic phase therefrom, then removing the solvent and recovering a solid polymer in good color and yield, free from an intractable gel, rendering the same useful as a tackifying resin.

REFERENCES:
patent: 2060871 (1936-11-01), Ipatieff
patent: 3784587 (1974-01-01), Chambers
patent: 3895081 (1975-07-01), Aikawa et al.
Tindall, Chem. Abs. 70, (1969), p. 48446x.
Komai et al., Chem. Abs. 83, (1975), p. 60310z.

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