Process for producing polyolefin grafted copolymers

Details Process for producing polyolefin grafted copolymers Process for producing polyolefin grafted copolymers

C - Chemistry, Metallurgy

08

F

C08F 2/34 (2006.01) B01J 8/18 (2006.01) B01J 8/38 (2006.01) B01J 19/24 (2006.01) C08F 255/00 (2006.01)

Patent

CA 2210828

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.

Procédé en phase gazeuse pour l'obtention de copolymères avec greffe de polymère oléfinique, incluant un appareil avec zones réactionnelles primaire et secondaire, reliées fonctionnellement l'une à l'autre; l'appareil est alimenté en particules de polymère oléfinique et en monomère polymérisable par radicaux libres; on maintient des conditions de polymérisation par radicaux libres et un milieu pratiquement non oxydant dans ces zones, d'où est évacué le copolymère greffé. On présente également un appareil permettant d'appliquer ce procédé.

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