Emulsion polymerization process for producing vinyl...

Details Emulsion polymerization process for producing vinyl... Emulsion polymerization process for producing vinyl...

C - Chemistry, Metallurgy

08

F

402/398, 402/542

C08F 6/14 (2006.01) C08F 2/24 (2006.01) C08F 14/00 (2006.01)

Patent

CA 1168798

ABSTRACT OF THE DISCLOSURE The present invention relates to a new and novel process of producing a vinyl resin latex by the emulsion polymerization technique comprising adding to the latex with thorough mixing an aqueous solution of an electrolyte, such as, for example, ammonium carbon- ate, and removing a part of the water by filtration or centrifuging, and the like; to produce friable aggre- gates of individual spheres of polymer particles. Thereafter, the friable aggregates of polymer particles are separated into individual spheres of polymer parti- cles by simple light rubbing or crushing and dried. In many cases, the separation can be accomplished by simple mixing of the resin with plasticizer during the plasti- sol preparation. Thus the spray drying and the subse- quent grinding steps are eliminated producing a superior product for plastisols.

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