Polymerization of vinyl chloride or monomer mixture containing the same

Abstract

Abstract PURPOSE: A product prepared by catalytic reduction of by-products in the production of cyanonorbornen in beforehand applied to the inner wall of the polymerizer to prevent scales from sticking on the inner wall during the polymerization of monomers containing vinyl chloride. CONSTITUTION: In the polymerization of vinyl chloride or a monomer mixture thereof with other compolymerizable monomers in an aqueous medium, the inner wall surfaces of polymerizer and the parts that contact with the monomer are coated with a product prepared by catalytic hydrogenation of the residue after cyanonorbornene or alkylcyanonorbornene along with tetracyclic cyano componds or their alkyl-substituted derivatives are distilled off from an adduct of acrylonitrile with cyclopentadiene or alkylcyclopentadiene. The product may be applied in the form of a solution in an organic solvent; however, an aqueous emulsion is preferred from view points of safety and environment. COPYRIGHT: (C)1979,JPO&Japio

Inventors

• 👤 Susumu Takao

Bibliographic Details