Method for drying polyolefins
US4365057A · kind A · utility
7Cited by
6References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1979 |
| Grant date | Dec 21, 1982 |
| Priority date | — |
| Expiry date | Mar 27, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F6/24
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Method for drying poly(.alpha.-olefins) comprising contacting poly(.alpha.-olefins) having a content of hydrocarbon medium of 0.2 to 2% by weight with nitrogen gas having substantially no hydrocarbon medium and having a dew point of -10.degree. C. or lower in counterflow in a silo type through-flow drying apparatus whereby poly(.alpha.-olefins) having a content of the hydrocarbon medium of less than 0.2% by weight can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.