Internally coated reaction vessel for use in olefinic...

Details Internally coated reaction vessel for use in olefinic... Internally coated reaction vessel for use in olefinic...

C - Chemistry, Metallurgy

08

F

23/431, 402/545,

C08F 2/00 (2006.01)

Patent

CA 1264396

ABSTRACT OF THE DISCLOSURE A method of preventing or retarding polymer build-up on the internal surfaces of polymerization reactors is provided by this invention. Reduced build-up in vinyl chloride polymerization is obtained by having a phenolic compound coated on the internal surfaces of the reactor vessel and a water phase polymerization inhibitor either combined with the phenolic coating or added to the aqueous polymerization medium. Optionally, a chelating agent is also added with the water phase inhibitor. The process is further enhanced by the presence of water soluble dispersants such as polyvinyl alcohol and methyl cellulose.

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