| abstract |
Polyolefins are stabilized with a combination of a diester of thiodipropionic acid, an alkylidine bisphenol and a phenyl salicylate. Optionally Zn, Ca or Na stearate or an organic phosphite may be present. Polyolefins specified are those derived from ethylene, propylene, methylbutene, methylpentene, pentene, dimethylbutenes, octene and decene. Specification 932,252 is referred to. |