THE WOODLANDS, Texas—Huntsman Corp. has launched a version of its Irogran A 85 P 4394 TPU with a higher tensile strength at break. The new material is aimed at blown film applications.
The HR version of the product has a higher melt strength, Huntsman said, and this makes it more process resilient. In addition, the A 85 P 4394 HR TPU product offers improved film extrusion quality, it said. This combination leads to lower scrap rates and higher production throughput.
The new material is aimed at applications such as lay-flat hoses for high pressure industrial applications such as firefighting. It can also be successfully laminated to fibers to form a breathable waterproof layer.
To make hoses, the material should be applied using the extrusions through the weave process. TPU helps the composite hoses go from tightly rolled objects to hoses withstanding water pressure at between 8 and 20 bar (116 to 290 psi) very quickly.
In textile lamination production, thin-blown films are laminated to fabrics where it can waterproof, add breathability, and aid fabric shape recovery. Gloss, smooth and matte finishes are all possible for laminated products, Huntsman added.
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