| US 7,579,551 B2 | ||
| Outer sheath layer for power or communication cable | ||
| Remko Van Marion, Wien (Austria); Roger Carlsson, Säve (Sweden); Hans Eklind, Stenungsund (Sweden); and Irene Helland, Porsgrunn (Norway) | ||
| Assigned to Borealis Technology Oy, Porvoo (Finland) | ||
| Appl. No. 11/917,441 PCT Filed Jun. 28, 2006, PCT No. PCT/EP2006/006267 § 371(c)(1), (2), (4) Date Apr. 28, 2008, PCT Pub. No. WO2007/003323, PCT Pub. Date Jan. 11, 2007. |
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| Claims priority of application No. 05014217 (EP), filed on Jun. 30, 2005. | ||
| Prior Publication US 2008/0196922 A1, Aug. 21, 2008 | ||
| Int. Cl. H01B 7/00 (2006.01) | ||
| U.S. Cl. 174—110R [174/110 PM] | 21 Claims |
| 1. A power or communications cable comprising an outer sheath layer made of a polyethylene composition comprising a base resin
which comprises
(A) a first ethylene homo- or copolymer fraction,
(B) a second ethylene homo- or copolymer fraction, and
(C) a third ethylene homo- or copolymer fraction in an amount of up to 20 wt % of the total base resin, wherein fraction (A) has a lower molecular weight than fraction (B), and the base resin has a molecular weight distribution
Mw/Mn of more than 14, and fraction (C) has an MFR2 of 0.1 g/10 min or lower.
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