Patent ID: 6174986
Filing Date: 2001-01-16
Classification: C08F,C08G

Abstract:
A process for (co)polymerizing a vinyl chloride monomer wherein the vinyl chloride monomer is subjected to homopolymerization or copolymerization with a monomer copolymerizable with the vinyl chloride monomer in an aqueous solvent or bulk (co)polymerization of vinyl chloride monomer or the monomers, comprising applying in advance a coating liquid containing a cocondensation product obtained by reacting either a phenothiazine derivative and an aldehyde or a phenothiazine derivative, a naphthol derivative and an aldehyde to give an initial condensation product and then reacting the initial product with a polyphenol, to an inner wall of a polymerization tank and parts of an apparatus in contact with the monomers during the polymerization process.