STUDIES OF ELECTRICAL-PROPERTIES OF SOME FIRE-RETARDING POLY(VINYL CHLORIDE) COMPOSITIONS

Several fire-resistant formulations were prepared from a sample of pol y(vinyl chloride) (PVC), small variable proportions of chloroorganic a dducts [1,2,3,4,7,7-hexachloro-5-carboxy,bicyclo (2,2,1)heptene-3] or chloro-5-carboxy,5-methyl-bicyclo(2,2,1)heptene-2] as fire-retarding m odifiers, plasticizers (dibutylphthalate and a chlorinated paraffin), and a heat stabilizer( dibutyltindilaurate). The fire-resistance and e lectrical properties of the obtained formulations were studied to obta in a fire-retarding plasticized PVC of good electrical insulation char acter. (C) 1997 John Wiley & Sons, Inc.