| US 7,601,915 B2 | ||
| Process for manufacturing a cable resistant to external chemical agents | ||
| Alberto Lumachi, Milan (Italy); Paolo Veggetti, Milan (Italy); Luca Giorgio De Rai, Milan (Italy); Franck O'Neil, Lexington, S.C. (US); Alberto Bareggi, Milan (Italy); Marco Frigerio, Milan (Italy); and Sergio Belli, Milan (Italy) | ||
| Assigned to Prysmian Cavi E Sistemi Energia S.R.L., Milan (Italy) | ||
| Appl. No. 11/587,968 PCT Filed Apr. 27, 2004, PCT No. PCT/US2004/011259 § 371(c)(1), (2), (4) Date Nov. 20, 2007, PCT Pub. No. WO2005/114677, PCT Pub. Date Dec. 01, 2005. |
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| Prior Publication US 2008/0190643 A1, Aug. 14, 2008 | ||
| Int. Cl. H01B 7/18 (2006.01) | ||
| U.S. Cl. 174—107 [156/54] | 31 Claims |
| 1. A process for manufacturing a cable comprising the following steps:
(a) conveying at least one conductor to an extruder apparatus;
(b) extruding an insulating coating layer radially external to said at least one conductor;
(c) longitudinally folding a metal tape around said extruded insulating coating layer, said metal tape bearing at least one
adhesive coating layer in a radially external position; and
(d) extruding at least one continuous coating layer comprising at least one polyamide or a copolymer thereof around and in
contact with said folded metal tape,
wherein step (d) is carried out at a draw down ratio not higher than 2.5.
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