STABILIZER COMPOSITIONS FOR POLYMERIC INSULATIONS

摘要

Polyethylene based compositions having incorporated a synergistic stabilizer consisting of zinc 2-mercaptotoluimidazole, zinc dibutyldithiocarbamate and tetrakis(methylene(3,5-di-t-butyl-4-hydroxyhydrocinnamate)) in critical ratios have improved resistance to oxidation and heat ageing. The polyethylene compositions can contain flame retardants, yellow pigments and fillers. The polyethylene compositions can be radiation or peroxide cross-linked to provide insulation for electrical conductors.