LAN cable

Patent metadata

Field	Value
Publication number	US-10748676-B2
Application number	US-201815904947-A
Country	US
Kind code	B2
Filing date	Feb 26, 2018
Priority date	Feb 24, 2017
Publication date	Aug 18, 2020
Grant date	Aug 18, 2020

Abstract

A LAN cable includes an insulated electrical wire having an insulating layer on an outer periphery of a conductor, a sheath that coats an outer periphery of the insulated electrical wire, and an intermediate layer arranged between the sheath and the insulated electrical wire, the intermediate layer having a mass reduction rate at 800° C. of less than or equal to 80% by mass. The sheath includes a cross-linked matter or a non-halogen flame retardant resin composition in which a mass reduction rate at 800° C. is less than or equal to 60% by mass.

First claim

What is claimed is:

1. A LAN cable comprising:
an insulated electrical wire comprising an insulating layer on an outer periphery of a conductor;
a resin tape comprising an aluminum laminate PET tape surrounding the insulated electrical wire;
a braided layer comprising copper surrounding the resin tape;
an intermediate layer surrounding the braided layer, the intermediate layer comprising a polyimide and having a mass reduction rate at 800° C. of less than or equal to 80% by mass; and
a sheath surrounding the intermediate layer, the sheath comprising a cross-linked non-halogen flame retardant resin composition in which the mass reduction rate at 800° C. is less than or equal to 60% by mass.

2. The LAN cable according to claim 1 , wherein the sheath comprises greater than or equal to 150 parts by mass of a flame retardant with respect to 100 parts by mass of a polyolefin-based polymer.

3. The LAN cable according to claim 2 , wherein the intermediate layer comprises a polyimide film.

4. The LAN cable according to claim 2 , wherein the flame retardant comprises magnesium hydroxide or aluminum hydroxide.

5. The LAN cable according to claim 1 , wherein the intermediate layer comprises a polyimide film.

Assignees

• Hitachi Metals Ltd

Inventors

• Kibe Tamotsu
• Iwasaki Makoto
• Kajiyama Motoharu
• Ohashi Mamoru

Classifications

• C08J9/06 Primary

  by a chemical blowing agent · CPC title

• H01B11/06 Primary

  with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens · CPC title

• H01B3/441

  from alkenes · CPC title

• H01B7/295

  using material resistant to flame · CPC title

• C08L23/0853

  Ethylene vinyl acetate copolymers · CPC title