Process for production of vinyl chloride polymer

摘要: This process is a for production of vinyl chloride polymer by suspension polymerization or emulsion monomer mixture with copolymerizable said in an aqueous medium, characterized that the carried out polymerizer, inner wall surface and portions auxiliary equipment thereof which may come into contact during being previously coated scaling preventive comprising at least one selected from dyes, pigments aromatic heterocyclic compounds having 5 conjugated π bonds, while controlling ion concentration reaction to not higher than 100 ppm. According process, onto etc. can be prevented effectively surely.