CHLORINATED VINYL CHLORIDE RESINS AND PROCESS FOR PRODUCTION

摘要

Chlorinated vinyl chloride resins which are reduced in unstable-structure content and have excellent thermal stability; and a molded object of the resins. One of the chlorinated vinyl chloride resins is characterized in that the resin has a chlorine content of 65-69 wt.%, excluding 69 wt.%, and the amounts of -CCl<SUB>2</SUB>-, -CHCl-, and -CH<SUB>2</SUB>- contained in the molecular structure are 6.2 mol% or smaller, 58.0 mol% or larger, and 35.8 mol% or smaller, respectively. The other is a chlorinated vinyl chloride resin which has a chlorine content of 69-72 wt.%, excluding 72 wt.%, and the amounts of -CCl<SUB>2</SUB>-, -CHCl-, and -CH<SUB>2</SUB>- contained in the molecular structure are 17.0 mol% or smaller, 46.0 mol% or larger, and 37.0 mol% or smaller, respectively.