The polymer scale adhesion inhibiter, the polymerization vessel which prevents the scale buildup polymer and uses that the polymer production manner

摘要

PURPOSE: To obtain the subject adhesion preventing agent for polymerization of an ethylenic double bond-containing monomer containing an aromatic diamine compound, etc., anhydrous colloid, etc., and capable of reducing fish eye of moldings by applying the agent to the inner wall in a polymerizer. ;CONSTITUTION: The objective adhesion preventing agent contains (A) one or more aromatic dibasic dihydrazides consisting of (i) an aromatic diamine compound of formula I or formula II (R¹ is H, NH₂, etc.; n is 1 or 2) and (ii) a compound of formula III [Y is formula IV or formula V (R³ is H, OH, etc.; S is 0-4)], (B) an inorganic colloid such as aluminum oxide or tungstic acid having 1-500μm particle diameter and (C) a water-soluble high polymer compound, preferably gelatin or casein.;COPYRIGHT: (C)1994,JPO&Japio