Stabilisierung von Polyolefinen

摘要

A polyolefin is stabilized with a combination of a known stabilizer + a reaction product of 4:41 - thio - bis - (6 - t. - Bu - m - cresol ) with phosphorus trichloride or oxychloride; the reaction products being of formulae The specified known stabilizers are phenolic compounds, organic sulphides and thiocarboxylic acid esters. Optional ingredients are carbon black, zinc oxide an zinc sulphide. The compositions may find application as wire insulation. Specification 851,670 is referred to.