| abstract |
A stabilized melt-processable composition comprising a halopolymer and preferably from about 0.01 wt.% to about 10 wt.% of the halopolymer of a combination comprising a phenolic complex and a phosphite. The phenolic complex is of the formula:n where at least one R₁, R₂, R₃, R₄, and R₅ is --OH, and wherein the remaining R₁ through R₅ is hydrogen or an aliphatic hydrocarbon. R₈ is an alkylene group having from 1 to 10 carbon atoms. The phosphite is of the formula P OR)₃, wherein R is hydrogen or an alkyl, cycloalkyl, aralkyl, aryl, or a hydroxy-substituted alkyl group having from 1 to about 18 carbon atoms. n In a preferred embodiment, the composition further includes from about 0.01 wt.% to about 10 wt.% of a thioester. A preferred halopolymer is an ethylene/chlorotrifluoroethylene copolymer. |