Process for rapidly terminating the polymerization of vinyl chlo

Details Process for rapidly terminating the polymerization of vinyl chlo Process for rapidly terminating the polymerization of vinyl chlo

1981-06-04

1983-02-01

Henderson, C. A.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 85, 526202, C08F 242, C08F 220

Patent

active

043716784

ABSTRACT:
Process for rapidly terminating the polymerization of vinyl chloride in aqueous suspension in the presence of lower dialkyl peroxydicarbonates by introducing effective amounts of ammonium hydroxide and an alkali metal thiosulphate, e.g. sodium or ammonium thiosulphate, into the polymerization medium. This process enables polymerization to be quickly and effectively terminated when a breakdown occurs.

REFERENCES:
patent: 2662876 (1953-12-01), Antlfinger

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