| 摘要 |
The flame retardant properties of a flame retardant crosslinkable or crosslinked ethylene copolymer composition, which contains filler consisting mainly or wholly of hydrated inorganic filler, and a silane (e.g. alkoxy- or amino-silane) coupling agent, are enhanced by including in the composition a lubricant system of C8-C25 fatty acid and alkylene bisamide in which the alkylene moiety has 2 to 8 carbon atoms and the amide moieties are selected from those of 8 to 25 carbon atoms. The polymeric component preferably comprises ethylene-unsaturated ester copolymer (e.g. ethylene-vinyl ester, ethylene-acrylate or ethylene- methacrylate copolymer). The composition preferably contains halogenated flame retardant and/or antimony trioxide. The compositions are useful as uniinsulation coating for electrical conductors. |
