High molecular weight high unsaturation C.sub.4 -C.sub.10 isoole

Details High molecular weight high unsaturation C.sub.4 -C.sub.10 isoole High molecular weight high unsaturation C.sub.4 -C.sub.10 isoole

1978-04-20

1979-05-08

Levin, Stanford M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 318DR, 260 336AQ, 260 4247, 260888, 260889, 526 36, C08C 1930, C08J 324, C08K 536

Patent

active

041535847

ABSTRACT:
Substantially gel-free high unsaturation copolymers of isobutylene and methylcyclopentadiene and high unsaturation terpolymers of isobutylene cyclopentadiene and methylcyclopentadiene and terpolymers of isobutylene, isoprene and methylcyclopentadiene having a number average molecular weight of at least about 120,000 and a mole percent of unsaturation of at least 5% and the process for preparing said polymers which comprises carrying out the polymerization in a homogeneous phase, introducing to the system either an aluminum halide in a soluble form or a hydrocarbylaluminum dihalide and carrying the reaction out at a temperature of less than about -100.degree. C.

REFERENCES:
patent: 2521359 (1950-09-01), Garber
patent: 3080337 (1963-03-01), Minckler et al.
patent: 3808177 (1974-04-01), Thaler et al.
patent: 3928297 (1975-12-01), Thaler et al.

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