Multi-layered water blocking cable armor laminate containing water swelling fabrics and associated methods of manufacture

• US 7,555,182 B2
• Filed: 07/21/2006
• Issued: 06/30/2009
• Est. Priority Date: 03/29/2005
• Status: Expired due to Fees

• Current Assignee: LLflex LLC (CLP LLFLEX Holdings LLC)
• Original Assignee: Reynolds Packaging LLC (Graeme Richard Hart, MBA)
• Inventors: Martin, Oscar
• Primary Examiner(s): Font; Frank G
• Assistant Examiner(s): El Shammaa; Mary A
• Application Number:
  US11/491,045
• Publication Number:
  US 20060263017A1
• Time in Patent Office: 1,075 Days
• Field of Search: 385/107
• US Class Current: 385/107
• CPC Class Codes: G02B 6/4434 Central member to take up tensile loads
• CPC Class Codes: G02B 6/44384 the means comprising water blocking or hydrophobic materials G02B6/4439, G02B6/4479 take precedence

Abstract

A multi-layered laminate armor wrap for use with a various cables is disclosed, the armor wrap having at least one water absorbing fabric layer, at least one polymer layer, and at least one layer fabricated from a metal or a metal alloy. Each layer in the multi-layered laminate armor wrap is fused or adhered to the adjacent layers to form a fused or sealed laminate armor wrap. A method of making such an armor wrap is also disclosed.

Claims

1. A multi-layered armor wrap for use with a cable comprising:

at least one water absorbing fabric layer, at least one polymer layer, and at least one layer fabricated from a metal or a metal alloy, each of said layers being fused to at least one adjacent layer;

the at least one water absorbing layer, at least one polymer layer, and at least one layer fabricated from a metal or a metal alloy all being thermally fused together to form a monolithic, substantially water-impermeable barrier for surrounding said cable.

2. The multi-layered armor wrap for use with a cable according to claim 1 wherein said multi-layered armor wrap comprises a water absorbing first layer, a second layer that is over and adhered to said first layer, said second layer being fabricated from a polymer, a third layer that is over and adhered to said second layer, said third layer being fabricated from a metal or a metal alloy, and a fourth layer that is over and adhered to said third layer, said fourth layer being fabricated from a polymer.

3. The multi-layered armor wrap for use with a cable according to claim 1 wherein said multi-layered armor wrap comprises a water absorbing first layer, a second layer that is over and adhered to said first layer, said second layer being fabricated from a metal, and a third layer that is over and adhered to said second layer, said third layer being fabricated from a polymer.

4. The multi-layered armor wrap for use with a cable according to claim 1 wherein said water absorbing fabric includes polyacrylic acid particles within the fabric structure or is a carded polyester non-woven material.

5. The multi-layered armor wrap for use with a cable according to claim 1 wherein said metal or metal alloy is steel or aluminum.

6. The multi-layered armor wrap for use with a cable according to claim 5 wherein said aluminum is selected from the Aluminum Association'"'"'s 1145, 1235, 8079, or 8111 aluminum alloys.

7. The multi-layered armor wrap for use with a cable according to claim 1 said metal or metal alloy layer has a thickness of at least about 8.89 μ

m (0.00035 inches).

8. The multi-layered armor wrap for use with a cable according to claim 1 wherein said polymer layer is fabricated from EAA or a coextruded blend of EAA.

9. The multi-layered armor wrap for use with a cable according to claim 1 wherein said polymer layer has a thickness of at least about 2.54 μ

m (0.00010 inches).

10. The multi-layered armor wrap for use with a cable according to claim 1 wherein each of said layers are adhered to at least one adjacent layer using a thermal lamination process, an adhesive lamination process, a powder lamination process, or by applying an adhesive between said adjacent layers followed by a nip and an oven processing step.

11. The multi-layered armor wrap for use with a cable according to claim 1 wherein said multi-layered laminate armor wrap has a thickness of about 4.40 μ

m.

12. The multi-layered armor wrap for use with a cable according to claim 1 wherein the cable is selected from a group consisting of copper, fiber optic, acrylic, copper coated steel and other suitable materials.

13. A cable comprising:

a strength member positioned adjacent to and surrounded by one or more copper or optical fibers;

an inner jacket surrounding said copper or optical fibers, said inner jacket having an interior surface and an exterior surface, said interior surface is adjacent to said copper or optical fibers;

a multi-layered laminate armor wrap substantially surrounding said inner jacket, said multi-layered laminate armor wrap having at least one water absorbing fabric layer, at least one polymer layer, and at least one layer fabricated from a metal or a metal alloy, each of said layers being fused to at least one adjacent layer;

the at least one water absorbing fabric layer, at least one polymer layer, and at least one layer fabricated from a metal or a metal alloy all being thermally fused together to form a monolithic, substantially water-impermeable barrier for surrounding said cable,

said multi-layered laminate armor wrap having an interior surface and an exterior surface, said interior surface of said multi-layered laminate armor positioned adjacent to said exterior surface of said inner jacket; and

an outer jacket surrounding said multi-layered laminate armor wrap, said outer jacket having an interior surface and an exterior surface, said interior surface of said outer jacket positioned adjacent to said exterior surface of said multi-layered laminate armor wrap.

14. A multi-layered armor wrap for use with a cable according to claim 13 wherein each of said interior and exterior jackets are fabricated from a low density polyethylene.

15. A method of making a multi-layered armor wrap for use with a cable comprising:

providing at least one water absorbing fabric layer, at least one polymer layer, and at least one layer fabricated from a metal or metal alloy;

the at least one water absorbing layer, at least one polymer layer, and at least one layer fabricated from a metal or a metal alloy all being thermally fused together to form a monolithic, substantially water-impermeable barrier for surrounding said cable.

16. A method of making a multi-layered armor wrap for use with a cable according to claim 15 wherein providing a water absorbing first layer that surrounds at least one cable fiber, a second layer that surrounds said first layer, said second layer being fabricated from a polymer, a third layer that surrounds said second layer, said third layer being fabricated from a metal or metal alloy, and a fourth layer that surrounds said third layer, said fourth layer being fabricated from a polymer.

17. A method of making a multi-layered armor wrap for use with a cable according to claim 15 wherein providing a water absorbing fabric layer having polyacrylic acid particles within the fabric structure.

18. A method of making a multi-layered armor wrap for use with a cable according to claim 15 wherein providing a metal or metal alloy layer fabricated from a steel or aluminum.

19. A method of making a multi-layered armor wrap for use with a cable according to claim 18 wherein providing an aluminum selected from the Aluminum Association'"'"'s 1145, 1235, 8079, or 8111 aluminum alloys.

20. A method of making a multi-layered armor wrap for use with a cable according to claim 15 wherein providing a metal or metal alloy layer having a thickness of at least about 8.89 μ

m (0.00035 inches).

21. A method of making a multi-layered armor wrap for use with cable according to claim 15 wherein providing an EAA polymer layer or a coextruded blend of EAA.

22. A method of making a multi-layered armor wrap for use with a cable according to claim 15 wherein providing a polymer layer having a thickness of at least about 2.54 μ

m (0.00010 inches).

23. A method of making a multi-layered armor wrap for use with a cable according to claim 15 wherein fusing each of said layers to an adjacent layer using a thermal lamination process, an adhesive lamination process, a powder lamination process, or by applying an adhesive between the adjacent layers followed by a nip and an oven processing step.

24. A method of making a cable comprising:

providing a strength member;

surrounding said strength member with one or more copper or optical fibers;

surrounding said copper or optical fibers with an inner jacket;

surrounding said inner jacket with a multi-layered laminate armor wrap, said multi-layered laminate armor wrap having at least one water absorbing fabric layer, at least one polymer layer, and at least one layer fabricated from a metal; and

surrounding said multi-layered laminate armor with an outer jacket,

the step of surrounding said inner jacket with a multi-layered laminate armor wrap further comprising the step of

thermally fusing together the at least one water absorbing layer, at least one polymer layer, and at least one layer fabricated from a metal or a metal alloy to form a monolithic, substantially water-impermeable barrier for surrounding said cable.

25. A method of making a optic cable according to claim 24 wherein providing an interior and exterior jacket fabricated from a low density polyethylene.