| abstract |
Ethylene/alphaolefin copolymer (optionally additionally containing nonconjugated polyene) is purified by contacting a reaction mass comprising such polymer and live polymerization catalyst with a liquid wash solution comprising at last one member selected from ethane, propane, butane, isobutane, neopentane, propylene, 1-butene, 2-butene and isobutene. A process for production of ethylene/alphaolefin copolymer, incorporating the purification procedure, is described. |