Method of treating polymerlatices

Details Method of treating polymerlatices Method of treating polymerlatices

1979-03-15

1981-08-11

Henderson, C. A.

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

Synthetic resins

Treating polymer containing material or treating a solid...

159 4CC, 260 296PT, 528501, C08F 616, C08F 614

Patent

active

042835267

ABSTRACT:
A method of continuously treating an aqueous latex of a synthetic polymer which contains unreacted residual monomer from the polymerization reaction used for the production of the polymer, which method comprises feeding the aqueous latex as a spray into a vessel defining a chamber so that all or a substantial quantity of the droplets of spray avoid contact with the side wall of the chamber, and contacting the falling spray with steam flowing counter-current thereto whereby residual monomer is removed with the flow of steam leaving the chamber. Apparatus for carrying out the method is also claimed. The method is advantageously employed for the removal of residual vinyl chloride monomer from a latex of a vinyl chloride polymer.

REFERENCES:
patent: 3547865 (1970-12-01), Hoch
patent: 4031056 (1971-06-01), Patel
patent: 4032497 (1977-06-01), Kidoh
patent: 4158092 (1979-06-01), Botsch

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