Polymer scale preventive agent, polymerization vessel...

Details Polymer scale preventive agent, polymerization vessel... Polymer scale preventive agent, polymerization vessel...

C - Chemistry, Metallurgy

08

G

C08G 73/00 (2006.01) B01J 19/02 (2006.01) C08F 2/00 (2006.01)

Patent

CA 2081075

ABSTRACT OF DISCLOSURE A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising a condensation product obtained by condensing: (A) an aromatic amine compound, and (B) an aromatic nitro compound in an organic solvent-based medium. This agent is used for forming a coating on the inner wall, etc. of a polymerization vessel. Such a vessel is effective in preventing polymer scale deposition not only on the areas in the liquid phase but also in the vicinity of the interface between the gas and liquid phases in the polymerization vessel and useful in producing a polymer that shows very few fish eyes and good whiteness when formed into sheets or the like.

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