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Teflon® FFR - Fluoroplastic Foam Resin

Fluoroplastic Foam Resin

Today DuPont is pioneering innovations in the foaming of fluoroplastic resins in order to support the development of advanced TIA/EIA Category 6 and 10 gigabit (10G-BASE-T) communications cables, coaxial cables, and other cables where high data transmission ratios are required.

Foaming fluoroplastic resin insulation reduces its dielectric constant, providing opportunities for miniaturization and weight savings because lower insulation wall thickness can be used. In addition, because this reduces dissipation factor the resulting insulated wire has lower capacitance and attenuation. Foamed insulation also increases the relative velocity of data transmission over insulated wire.

Resin and processing requirements are highly dependent on construction.  For thicker wall constructions (i.e., coaxial RG cable) a resin with a lower melt flow rate (MFR) is used with higher void content using lower draw down tooling.  For thinner wall constructions (i.e., Category 6 and 10G-BASE-T cables) a higher MFR resins is used at a lower void content using higher draw down tooling.

Return Loss measures the amount of signal that is lost due to reflections along the length of the cable.  Successful use of our foamed and fluoropolymer resins generates good adhesion of insulation to the copper conductor which in turn leads to improved return loss.

Teflon® FFR Grade Resin Characteristics
Applications
430
A fluoroplastic compounded with a nucleating package with a nominal melt flow of 7. Used in a gas injected foam extrusion process to produce foamed dielectric insulation. 

Teflon® FFR 430 is a low-flow resin that is specifically designed for larger coax applications with a typical void content from 20% to 60%.

550
A fluoroplastic compounded with a nucleating package with a nominal melt flow of 14. Used in a gas injected foam extrusion process to produce foamed dielectric insulation. Foamed insulation of Teflon® FFR 550 fluoroplastic provides improved attenuation and highest production speed on medium to large coax cables.
750
 
A fluoroplastic compounded with a nucleating package with a nominal melt flow of 12. Used in a gas injected foam extrusion process to produce foamed dielectric insulation. Foamed insulation of Teflon® FFR 750 fluoroplastic provides superior attenuation performance and increased production speed on medium to large coax cables. 
770  A fluoroplastic compounded with a nucleating package with a nominal melt flow of 30. Used in a gas injected foam extrusion process to produce foamed dielectric insulation. Foamed insulation of Teflon® FFR 770 is best suited for thinner wall applications such as data cable primary insulation or micro coax applications, offering superior attenuation and high production speeds. 
880  A fluoroplastic compounded with a nucleating package with a nominal melt flow of 42. Used in a gas injected foam extrusion process to produce foamed dielectric insulation. Foamed insulation of Teflon® FFR 880 is the highest MFR foam resin best suited for micro and sub micro coax cables, offering the best attenuation, conductor adhesion and resistance to solder flare back. 

TRADEMARK DISCLAIMER: Teflon® is a registered trademark of DuPont for our brand of fluoropolymer resins. The Teflon® brand name is licensed by DuPont in association with approved applications. Without a trademark license, customers may not identify their product with the Teflon® brand name. Unlicensed customers may refer to the DuPont product offering with only the DuPont product code number and product identifier name or descriptor as DuPont sells its product offerings. There are no fair use rights to use the Teflon® trademark by buying from DuPont, a DuPont customer or a distributor without a trademark license from DuPont.

All references of the Teflon® trademark herein are then provided for possible licensing opportunities available behind each identified resin type depicted. 
If you are interested in applying for our trademark licensing agreement contact DuPont.