POLYMER SCALE INHIBITOR AND PRODUCTION OF POLYMER IN POLYMERIZER EFFECTIVELY PROTECTED AGAINST POLYMER SCALE DEPOSITION

摘要

PURPOSE: To effectively prevent a polymerizer from suffering polymer scale deposition not only on the polymerizer part which is in contact with the liquid phase but also on the polymerizer part around the interface between the gas and liquid phases. ;CONSTITUTION: The title inhibitor, for use in the polymerization of an ethylenic monomer, comprises a condensate obtained by adding a terminator during the condensation of an aromatic amine conducted in the presence of at least one condensation catalyst selected from the group consisting of a halogenated oxyacid, a halogenated oxyacid salt, a peroxide, an azo compound, an oxide, chloride, and sulfate of iron or copper, and an aromatic nitro compound. A polymerizer having on its inner wall a coating film containing the condensate is used to produce a polymer.;COPYRIGHT: (C)1994,JPO&Japio