Apparatus for producing polyolefin grafted copolymers

Details Apparatus for producing polyolefin grafted copolymers Apparatus for producing polyolefin grafted copolymers

1997-07-15

1999-08-24

Tran, Hien

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Fluidized bed

422131, 422132, 422139, 422146, 422147, 422189, 422202, 422213, 422216, B01J 808, B01J 818, F27B 1508

Patent

active

059421940

ABSTRACT:
A gas phase process for producing olefin polymer graft copolymers, including providing a reaction apparatus having first and second reaction zones operatively connected to each other into which particles of an olefin polymer and a free-radical polymerizable monomer are fed while maintaining free-radical polymerization conditions and a substantial non-oxidizing environment in said zones and from which the grafted copolymer product is discharged. An apparatus suitable for practicing this process is also disclosed.

REFERENCES:
patent: 5140074 (1992-08-01), DeNicola, Jr. et al.
patent: 5411994 (1995-05-01), Galli et al.
patent: 5728353 (1998-03-01), Govoni et al.

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