Dispersant for manufacturing vinyl chloride resin and method...

C - Chemistry – Metallurgy – 08 – F

Patent

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Details

C08F 293/00 (2006.01) C08F 2/20 (2006.01) C08F 14/06 (2006.01)

Patent

CA 2581727

The present invention relates to a dispersant for manufacturing vinyl chloride resin and a method of manufacturing vinyl chloride resin using the same. More precisely, this invention relates to a dispersant which is prepared by RAFT, harbors a hydrophobic group and one or more hydrophilic groups not containing a hydroxy group, and has a polydispersity index of 1.1 - 2, and a method of manufacturing vinyl chloride resin using the said dispersant. The dispersant for manufacturing vinyl chloride resin of the present invention and the manufacturing method of the present invention facilitates the preparation of vinyl chloride resin characterized by even size distribution, excellent sphericity and proper particle diameter.

La présente invention concerne un agent dispersant permettant de fabriquer une résine de chlorure de vinyle et un procédé de fabrication de ladite résine au moyen dudit agent dispersant. Plus précisément, cette invention a trait à un agent dispersant qui est préparé par polymérisation à transfert de chaîne d'addition-fragmentation réversible (RAFT), qui présente un groupe hydrophobe et au moins un groupe hydrophile ne contenant pas un groupe hydroxy et qui a un indice de polydispersité compris entre 1,1 et 2, ainsi qu'à un procédé de fabrication de résine de chlorure de vinyle à l'aide dudit agent dispersant. L'agent dispersant destiné à la fabrication de la résine de chlorure de vinyle et le procédé de fabrication selon cette invention facilitent la préparation de la résine de chlorure de vinyle caractérisée par une distribution granulométrique égale, une excellente sphéricité et un diamètre de particule adéquat.

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