Aqueous emulsion of vinyl chloride

Details Aqueous emulsion of vinyl chloride Aqueous emulsion of vinyl chloride

C - Chemistry, Metallurgy

08

F

400/9399

C08F 2/22 (2006.01) B01J 3/04 (2006.01) C08F 6/14 (2006.01) C08F 114/06 (2006.01) C08L 27/06 (2006.01)

Patent

CA 1052925

ABSTRACT OF THE DISCLOSURE A process for the manufacture of emulsion polyvinyl chloride by discontinuous polymerisation in a highly concentrated aqueous emulsion of low emulsifier content in the presence of a water-soluble radical catalyst carried out in a pressure kettle of at least 60 m3 capacity, wherein after completion of individual polymerisation cycles in the polymerisation kettle the polymer dispersion is conveyed under a vinyl chloride pressure of 0.1 to 2.5 atmospheres from the polymerisation kettle into a discharge device and the polymerisation kettle is left unopened between polymerisation cycles.

234418

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