Method of preventing polymer scale formation

Details Method of preventing polymer scale formation Method of preventing polymer scale formation

C - Chemistry, Metallurgy

08

F

23/379, 402/396

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

Patent

CA 1323464

ABSTRACT OF THE DISCLOSURE Method of preventing scale formation A method of preventing polymer scale formation in a polymerization vessel during the polymerization of a monomer having an ethylenically double bond, wherein said polymerization is carried out in a polymerization vessel in which its inner wall surface is previously coated with a water-based coating solution containing (A) a water- soluble anionic dye and (B) at least one member selected from the group consisting of water-insoluble cationic dyes and water-insoluble nitrogen-containing organic compounds and having a pH of 7 or less and then dried to form a coating. This method can effectively prevent scale formation in the polymerization of extensive manomers having an ethylenically double bond.

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