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DuPont modifiers for improved wire and cable compound performance

DuPont Packaging & Industrial Polymers is exhibiting its entire portfolio of industrial polymers for the wire and cable market in Düsseldorf, to include DuPont™ Fusabond® coupling agents, DuPont™ Elvaloy® ethylene based terpolymers, DuPont™ Elvaloy® AC ethylene acrylates and DuPont™ Elvax® ethylene vinyl acetate (EVA) resins. These products are particularly used in halogen-free, flame retardant (HFFR) cable compounds.

Making its debut at Wire 2008, Fusabond® N525 is the latest offering for the HFFR compound market. “Poor flexibility is a common drawback with HFFR cables. By replacing existing coupling agents with Fusabond® N525 the compound flexibility is significantly improved while other properties like strength and elongation are maintained,” says Gustav Jannerfeldt, market segment leader for wire and cable at DuPont Packaging & Industrial Polymers.

Photo: DuPont
As illustrated in the chart above, DuPont™ Fusabond® N525 significantly improves compound flexibility while maintaining strength and elongation.

Fusabond® N525 has the same high and consistent quality level as other Fusabond® grades currently used in the wire and cable industry. “The compound properties are strongly related to the coupling agent and any quality inconsistencies of the coupling agent may result in cable failure later on,” explains Jannerfeldt.

Apart from presenting its new coupling agents, DuPont Packaging & Industrial Polymers is also promoting the use of Elvaloy® ethylene based terpolymers in HFFR cables. By adding highly polar Elvaloy® terpolymers to the compound, both oil- and chemical resistance as well as low temperature flexibility are improved. Processing short comings normally associated with highly polar high VA content EVAs, such as blocking of pellets, are not present with Elvaloy®.

DuPont Packaging and Industrial Polymers is a world-class manufacturer of high-performance resins and films for a variety of packaging and industrial applications. Its best known ethylene copolymer products include Surlyn® resins for packaging and industrial applications, Bynel® coextrudable adhesives, Selar® PA amorphous polyamide barrier resins, Nucrel® acid copolymers, Elvax® EVA copolymers, Elvaloy®, Elvaloy AC®, Entira(TM) and Fusabond® modifiers.

DuPont is a science-based products and services company. Founded in 1802, DuPont puts science to work by creating sustainable solutions essential to a better, safer, healthier life for people everywhere. Operating in more than 70 countries, DuPont offers a wide range of innovative products and services for markets including agriculture and food; building and construction; communications; and transportation.

The DuPont Oval, DuPont™, The miracles of science™, and Fusabond®, Elvaloy®, Elvax®are registered trademarks or trademarks of E.I. du Pont de Nemours and Company or its affiliates.

Horst Ulrich Reimer | Du Pont
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