Process for the purification of amorphous ethylene/alphaolefin copolymers
US4754004A · kind A · utility
1Cited by
14References
18Claims
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Key dates
| Filing date | Sep 26, 1986 |
| Grant date | Jun 28, 1988 |
| Priority date | — |
| Expiry date | Sep 26, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F210/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Amorphous ethylene/alphaolefin copolymer (optionally additionally containing nonconjugated polyene) is purified by contacting a reaction mass comprising such polymer and live, soluble polymerization catalyst composition with an effective amount of a liquid wash solution comprising at least one member selected from the group consisting of ethane, propane, butane, isobutane, neopentane, propylene, 1-butene 2-butene and isobutene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.