Halogen scavenger for olefin formulations

摘要

A halogen scavenging system is provided for inhibiting the corrosion-causing tendency and coloration of halogen-containing olefin polymers or copolymers, comprising incorporating about 0.01% to about 1% of a hydroltalcite-like solid solution having the formula Al2(Mg)a(OH)b(CO3)c(G)d.eH2O and a crystallite size in the <003> direction of about 190 Å to about 225 Å, and having bidentate coordination for carbonate ion as shown by an infrared spectrum, and wherein 3<=a<=5.5; 8<=b<=14; 1.2<=c<=3; 0<=d<=1; 1<=e<=10 and G is a surface active agent into the halogen containing olefin polymer.