Polymerization process with anti-scaling agents

Details Polymerization process with anti-scaling agents Polymerization process with anti-scaling agents

C - Chemistry, Metallurgy

08

F

C08F 2/00 (2006.01) C08F 2/16 (2006.01)

Patent

CA 2223422

Procedure for the polymerization of monomers in aqueous suspension and/or emulsion carried out in reactors inside of which an anti-scaling product is deposited, characterized in that, the said anti-scaling product comes from the cross-linking of polyvinyl alcohol with the product formed by the reaction of sodium salt of the hydroxymethansulphincal acid with naphthols.

La présente invention concerne un procédé de polymérisation de monomères dans une suspension et/ou une émulsion aqueuse réalisée dans des réacteurs intérieurement garnis par dépôt d'un agent anti-écaillage. La caractéristique de ce procédé est que l'agent anti-écaillage est obtenu par réticulation d'alcool de polyvinyle avec le produit issu de la réaction de sel de sodium de l'acide hydroxyméthyl-sulphinique avec des naphtols.

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