Process for the manufacture of halogenated polymers

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

1983-04-01

1985-02-26

Michl, Paul R.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C08F 822

Patent

active

045018596

ABSTRACT:
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.

REFERENCES:
patent: 3293226 (1966-12-01), Schrijver
patent: 3966692 (1976-06-01), Driscoll
patent: 4254240 (1981-03-01), Newman

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