| 摘要 |
Crosslinkable or crosslinked polymer compositions are provided, the compositions including a copolymer of ethylene and C<SUB>3 </SUB>to C<SUB>12 </SUB>alpha-olefin comonomer, the copolymer having a CDBI of at least 70%, a melt index I<SUB>2.16 </SUB>of from 0.1 to 15 g/10 min, a density of from 0.910 to 0.940 g/cm<SUP>3</SUP>, a melt index ratio I<SUB>21.6</SUB>/I<SUB>2.16 </SUB>of from 30 to 80, and an Mw/Mn ratio of from 2.5 to 5.5; and a silane grafting composition including a silane compound and a free radical initiator; or reaction products thereof. The crosslinkable or crosslinked compositions are particularly suitable for electrical applications, such as in insulating, semiconducting or jacketing layers of power cables, telecommunications cables, and combined power/telecommunications cables.
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