Process for reducing polyolefin die smoke

Details Process for reducing polyolefin die smoke Process for reducing polyolefin die smoke

1980-05-08

1982-02-02

Henderson, C. A.

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

Synthetic resins

Treating polymer containing material or treating a solid...

264211, 528491, 528494, 528496, 528499, C08F 600, C08F 608

Patent

active

043140530

ABSTRACT:
Polyolefin polymer powder containing active catalyst residues is deactivated by (1) purging with an inert gas containing water vapor and (2) then contacting such powder with a gas mixture containing an inert gas, water vapor, and a third component selected from the group consisting of oxygen, carbon monoxide, carbon dioxide, C.sub.1 -C.sub.4 alcohols and C.sub.2 -C.sub.4 alkeneoxides.

REFERENCES:
patent: 3554995 (1971-01-01), McCray
patent: 3733314 (1973-05-01), Marwil
patent: 4029877 (1977-06-01), Yoshiura
patent: 4156075 (1979-05-01), Holliday
patent: 4167619 (1979-09-01), Van Mannekes

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