Method for drying polyolefins

Details Method for drying polyolefins Method for drying polyolefins

1979-03-27

1982-12-21

Henderson, C. A.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528480, 528502, C08F 610

Patent

active

043650570

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.

REFERENCES:
patent: 3139415 (1964-06-01), Speed
patent: 3189588 (1965-06-01), Hull
patent: 3547865 (1970-12-01), Hoch
patent: 3625932 (1971-12-01), Green
patent: 3775389 (1973-11-01), Hundmeyer
patent: 4012461 (1977-03-01), van Brederode

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