Improved crosslinked automotive wire

H - Electricity – 01 – B

Patent

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Details

H01B 7/29 (2006.01) C08K 3/26 (2006.01) H01B 3/44 (2006.01)

Patent

CA 2576861

The present invention is a crosslinked automotive wire comprising a metal conductor, a flame retardant insulation layer surrounding the metal conductor, and optionally, a wire jacket surrounding the insulation layer. The automotive wire passes the specifications of one or more several automotive cable testing protocols: (a) SAE J-1128, (b) ISO-6722, (c) LV 112, (d) Chrysler MS-8288, and (e) Renault 36-36-05~009/-L. In particular, the flame retardant insulation layer is prepared from a crosslinkable thermoplastic polymer and a metal carbonate. The flame retardant composition for making the insulation layer demonstrates economic and processing improvements over conventional solutions. The present invention is also a method for preparing a low tension primary automotive wire and the automotive wire made therefrom.

La présente invention concerne un fil d'automobile réticulé comprenant un conducteur métallique, une couche isolante ignifuge enveloppant le conducteur métallique et, éventuellement, une gaine de fil enveloppant la couche isolante. Le fil d'automobile répond aux spécifications d'un ou de plusieurs protocoles d'essai de câbles d'automobile : (a) SAE J-1128, (b) ISO-6722, (c) LV 112, (d) Chrysler MS-8288 et (e) Renault 36-36-05­009/-L. La couche isolante ignifuge est notamment préparée à partir d'un polymère thermoplastique réticulable et d'un carbonate métallique. La composition ignifuge utilisée pour fabriquer la couche isolante apporte des améliorations en matière de coût et de traitement par rapport aux solutions classiques. La présente invention concerne également un procédé de préparation d'un fil d'automobile primaire à faible tension et le fil d'automobile ainsi obtenu.

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