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...

B - Operations, Transporting

01

J

23/377, 23/431,

B01J 19/02 (2006.01) C08F 2/00 (2006.01)

Patent

CA 1095343

ABSTRACT OF THE DISCLOSURE This invention relates to a polymerization reac- tion vessel having an approximate monolayer coating on the inner surfaces thereof resulting from applying thereto an aqueous alkali metal hydroxide coating solution containing a straight chain or branched polyaromatic amine and a dis- persant operable in aqueous media, such as, for example, polyvinyl alcohol. When polymerizing olefinic monomers. such as vinyl halides, vinylidene halides, and vinylidene monomers having at least one terminal Image grouping, and mixtures thereof, in the presence of said coating, polymer build-up on the inner surfaces of the reaction vessel is substantially eliminated. Further, multiple charges or batches of polymer can be made in said internally coated reaction vessel without opening the same between charges thus preventing the escape of unreacted monom r to the atmosphere.

282654

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