Process for the manufacture of halogenated polymers

Details Process for the manufacture of halogenated polymers Process for the manufacture of halogenated polymers

C - Chemistry, Metallurgy

08

F

402/3

C08F 8/20 (2006.01) C08C 19/12 (2006.01)

Patent

CA 1195045

PROCESS FOR THE MANUFACTURING OF HALOGENATED POLYMERS (E-22) ABSTRACT OF THE DISCLOSURE Continuous halogenation of polymers is achieved in an extruder-reactor employing reactants, conditions and design features directed to maximizing mixing and contact of the polymer with the halogenating agent and neutralizing agent while simultaneously minimizing side reactions and polymer degradation. The polymer passes through three extruder-reactor zones under controlled conditions to achieve halogenation: feed, reaction, neutralization, and optionally a wash and exit zone. Various halogenated polymers are produced, for example, halogenated linear low density polyethylene and halogenated butyl rubber.

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