| 摘要 |
A SEMICONDUCTING COMPOSITION FOR THE INNER SEMICONDUCTING LAYER OF AN ELECTRIC CABLE, AN ELECTRIC CABLE INCORPORATING THE COMPOSITION, AND A METHOD OF PRODUCING A CROSS-LINKED INNER SEMICONDUCTING LAYER OF AN ELECTRIC CABLE ARE DISCLOSED. THE SEMICONDUCTING COMPOSITION COMPRISES, BASED ON THE TOTAL WEIGHT OF THE COMPOSITION, (A) 30-90% BY WEIGHT OF AN ETHYLENE COPOLYMER, (B) CARBON BLACK IN AN AMOUNT AT LEAST SUFFICIENT TO MAKE THE COMPOSITION SEMICONDUCTING, (C) 0-8% BY WEIGHT OF A PEROXIDE CROSS-LINKING AGENT, (D) 0-8% BY WEIGHT OF CONVENTIONAL ADDITIVES, CHARACTERIZED IN THAT SAID ETHYLENE COPOLYMER (A) IS AN ETHYLENE-METHYL (METH)ACRYLATE COPOLYMER, PREFERABLY COMPRISING 5-25% BY WEIGHT OF METHYL(METH)ACRYLATE, BASED ON THE WEIGHT OF THE COPOLYMER. |
