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US 7,732,711 B2Granted
Semiconductive polymer composition
AssigneeBorealis Technology Oy
InventorsAnders Ericsson, Anders Gustafsson, Claes Broman, Lena Lindbom, Ulf Nilsson, Annika Smedberg, Alfred Campus, Roger Carlsson, Ola Fagrell, Jan-Ove Boström, Andreas Farkas, Peter Carstensen
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Abstract
A semiconductive polymer composition for use in power cables, wherein the composition has a multimodal ethylene homo- or copolymer produced in a polymerization process having a single site catalyst whereby the polymer composition has a density of 870-930 kg/m3, a MFR2 of 1 to 30 g/10 min and a Mw/Mn of less than or equal to 10.
Claims21
A semiconductive polymer composition comprising:
- a multimodal ethylene homo- or copolymer, produced in a polymerisation process comprising a single site catalyst;
- up to 10 wt % polar copolymer;
- and
- carbon black;
- wherein the polymer composition has a density of 870 to 930 kg/m3, a MFR2 of 1 to 30 g/10 min and a Mw/Mn of less than or equal to 10, whereby the ranges given are measured without additives.
2 more elements
Dependencies are inferred from the claim text.