POLYMER SCALE ADHESION-PREVENTING AGENT, POLYMERIZER PREVENTING ADHESION OF POLYMER SCALE AND METHOD FOR PRODUCING POLYMER WITH THE SAME

摘要

PURPOSE: To provide a preventing agent comprising an alkaline solution of the condensation product of an amino groupcontaining compound with an aromatic bisester anhydride, preventing the adhesion of scales at the time of polymerization of ethylenic double bond-containing monomers, giving polymerization products having high qualities, and free from the danger of explosion. ;CONSTITUTION: The preventing agent comprises an alkaline solution of the condensation product of (A) an aromatic diamine compound with (B) an organic bisester anhydride of formula I (X is divalent organic group of formula II-VI; Y is trivalent organic group of formula VII). A coating material comprising the alkaline solution is coated on the inner wall of a polymerizer and subsequently dried to form a coating film. The condensation reaction is preferably performed in an organic solvent at room temperature to 50°C for 1-100hr, and the coating agent is preferably in the form solution using the mixture of water with methanol, etc., and having a pH of 9.52-12.5.;COPYRIGHT: (C)1994,JPO&Japio