Polymer scale preventive agent

Details Polymer scale preventive agent Polymer scale preventive agent

C - Chemistry, Metallurgy

09

K

C09K 3/00 (2006.01) B01J 19/02 (2006.01) C08F 2/00 (2006.01)

Patent

CA 2102751

ABSTRACT OF DISCLOSURE Polymer scale Preventive agent A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising an alkaline solution containing (A) a condensation product of (A-1) a hydroxynaphthalene com- pound and (A-2) an aldehyde compound, and (B) an inorganic colloid. This agent is used for forming a coating on the inner wall, etc. of a polymerization vessel. Such a ves- sel is effective in preventing polymer scale deposition, not only in the liquid-phase region but also in the vicin- ity of the interface between the gas and liquid phases in the 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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