Product News: Chemical Processing & Waste Management

Halogen-Free TPEs target manufacturers of flexible cords.

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Press Release Summary:

March 24, 2014 - With Halguard® E 59000 Thermoplastic Elastomers, manufacturers of flexible cords can produce non-PVC insulation and jacketing that do not contain halogenated flame retardants or phthalate plasticizers, while avoiding processing limitations of highly filled halogen-free flame retardant polyolefin compounds. Inherently elastic, low-smoke compounds incorporate intumescent flame retardant formulations rather than metal hydrate fillers used to render polyolefin products flame retardant.

Teknor Apex Co.

505 Central Ave., Pawtucket, RI, 02861, USA

Original Press Release

Halogen-Free TPEs for Flexible Cords Meet the Same Flame Requirements as HFFR Polyolefins while Being Easier to Process

Press release date: March 17, 2014

Halguard® E 59000 TPEs from Teknor Apex Provide Performance Comparable to PVC and Exhibit Lower Density, Lower Viscosity, and Higher Elongation than HFFR Polyolefins 

PAWTUCKET, RI, U.S.A.,-- A new series of low-smoke, flame-retardant thermoplastic elastomers (TPEs) enables manufacturers of power and other flexible cords to produce non-PVC insulation and jacketing that do not contain  halogenated flame retardants or phthalate plasticizers, while avoiding the processing limitations of highly filled halogen-free flame retardant (HFFR) polyolefin compounds, it was announced today by Teknor Apex Company. The series will be introduced at Wire 2014 (Hall 9 / Stand F 0503).

Inherently elastic, Halguard® E 59000 Series HFFR compounds contain no plasticizers but compare well with plasticized PVC in mechanical and electrical performance. They are based on polymer chemistry different from the polyolefins in other HFFR compounds, and they incorporate intumescent flame retardant formulations rather than the metal hydrate fillers used to render the polyolefin products flame retardant. While having flame performance similar to that of polyolefin HFFR compounds and greater oil-resistance, Halguard E 59000 Series TPEs exhibit lower density, lower melt viscosity, and higher elongation at break and avoid the processing challenges posed by high loadings of metal hydrate fillers.

Teknor Apex recommends Halguard E 59000 Series compounds for flexible cords, appliance wire, power cords for computers, HDMI cables for televisions, and wiring for device chargers and USB connectors, as well as other specialty cable applications. Among available grades in the series are three that meet different needs:

-- Halguard E 59001 is designed for cords that meet UL 62 requirements and for appliance wire that complies with UL 758. The new compound enables cables to meet the requirements of UL VW-1 and Cable Flame tests as well as the IEC 61034 smoke test. When tested in accordance with UL 1581, Halguard E 59001 meets deformation and heat shock requirements at 150 ºC, compared to 121 ºC for PVC. Its oil resistance makes it well suited for jacketing.

-- Halguard E 59002 has a higher oxygen index than the E 59001 compound and provides even better flame properties, but it does not meet the UL 62 oil test.

-- Halguard E 59010 exhibits a volume resistivity that is quite high, even in water, making it well suited for insulation. Though it does not meet IEC 61034 smoke test requirements on a stand-alone basis, it provides a level of flame retardance that is comparable to or better than that of the E 59001 grade.

“Halguard E 59000 Series compounds avoid the difficulties of processing highly filled polyolefins while still enabling manufacturers to meet stringent flame and smoke requirements with products that are  halogen-free,” said Mike Patel, director of marketing and business development for the Vinyl Division of Teknor Apex. “Teknor Apex will continue to expand this series, drawing on proprietary polymer and flame-retardant technology to further develop HFFR products that are very flexible, are easy to extrude, and encompass a broadening range of end use specifications.” 

Properties of three new Halguard E 59000 Series compounds appear on the accompanying table.

The VINYL DIVISION of Teknor Apex Company is a leading manufacturer of compounds based on PVC, including Apex flexible and rigid vinyl, Flexalloy vinyl elastomers, and Fireguard low-flame, low-smoke compounds for wire and cable.  Headquartered in Pawtucket, Rhode Island, U.S.A., the Division is an international supplier to the appliance, automotive, construction, medical device, wire and cable, and other industries. Parent company Teknor Apex operates manufacturing facilities around the world and sells in 90 countries. Six of the eight Teknor Apex business units focus on plastics compounding, including bioplastics; color concentrates; nylon; thermoplastic elastomers; toll and specialty compounds; and vinyl. Visit www.teknorapex.com.

READER INQUIRY INFORMATION:  Address all mail inquiries to Teknor Apex, 505 Central Avenue, Pawtucket, RI  02861 U.S.A. Tel: 1-401-725-8000.  Tel. from U.S. only: 1-800-554-9892. Fax: 1-401-729-0166. E-mail: vinyl@teknorapex.com.

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