Process for removing residual vinyl chloride from the polymer

Details Process for removing residual vinyl chloride from the polymer Process for removing residual vinyl chloride from the polymer

C - Chemistry, Metallurgy

08

F

402/5.5

C08F 6/28 (2006.01) B01J 8/24 (2006.01) C08F 6/00 (2006.01)

Patent

CA 1051585

Abstract of the Disclosure The present invention relates to a process for removing vinyl chloride and any comonomers present in a vinyl chloride polymer which process comprises heating the polymer at a temperature between its glass transition temperature and 180°C, condensing steam directly on to the polymer, maintaining it at this temperature sufficiently long to remove the greater part of the monomer or monomers present in the polymer and then cooling the polymer to below its glass transition point by evaporating the steam that has condensed on the polymer.

176546

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