Improved insulation compositions containing metallocene...

C - Chemistry – Metallurgy – 08 – K

Patent

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Details

C08K 5/3492 (2006.01) C08K 5/17 (2006.01) C08K 5/33 (2006.01) C08K 5/3435 (2006.01) C08K 5/3437 (2006.01) C08K 13/06 (2006.01) H01B 7/00 (2006.01)

Patent

CA 2491013

Novel antioxidant systems for metallocene based filled cable insulation are disclosed. These antioxidant systems provide excellent protection against thermal degradation, better cure state and reduced dissipation factor after prolonged heat exposure. The antioxidants consist of mixtures of hindered amine light stabilizers or sterically hindered amine light stabilizers and amine antioxidants.

L'invention concerne de nouveaux systèmes antioxydants conçus pour une composition isolante de câble à base de métallocènes et contenant une charge. Ces systèmes antioxydants garantissent une excellente protection contre la dégradation thermique, un meilleur durcissement et un facteur de dissipation réduit après une exposition thermique prolongée. Ces antioxydants sont constitués de mélanges de photostabilisants amine empêchés ou de photostabilisants amine à encombrement stérique et d'antioxydants amine.

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