Laminate water barrier
AssigneeNexans
InventorsMarkus Jarvid, Simon Jorgensen
Life of this patent
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Abstract
A laminate structure having a metal foil having a lower and an upper surface area, a first layer of a thermoplastic polymer laid onto and covering the lower surface of the layer of metal foil except for a longitudinal uncovered surface area of the layer of metal foil, and a second layer of thermoplastic polymer laid onto and covering the upper surface of the layer of metal foil except for a longitudinal uncovered surface area of the layer of metal foil, and wherein the laminate structure is wrapped around the cable core such that the first uncovered surface area of the metal foil faces the cable core and the second uncovered surface area of the metal foil faces away from the laminate structure, and the laminate structure is thermally joined by a heat treatment.
Claims17
A water barrier encapsulating a cable core,
- wherein the water barrier comprises:
- at least one layer of a laminate structure being wrapped around the cable core with at least some overlap between opposite edges of the laminate structure, wherein the laminate structure comprises:
- a layer of metal foil having a lower and an upper surface area,
- a first layer of thermoplastic polymer laid onto and covering the lower surface of the layer of metal foil except for a first longitudinal uncovered surface area of the layer of metal foil, and
- a second layer of thermoplastic polymer laid onto and covering the upper surface of the layer of metal foil except for a second longitudinal uncovered surface area of the layer of metal foil, and wherein
- the laminate structure is wrapped around the cable core such that the first longitudinal uncovered surface area of the metal foil faces the cable core and the second longitudinal uncovered surface area of the metal foil faces away from the laminate structure, and
- the laminate structure is thermally joined by a heat treatment.
Dependencies are inferred from the claim text.