additives | Stabilisers
Right: BASF is pitching its Tinuvin XT 55 at demanding fibre applica- tions such as artificial grass
tures and environmental pollutants. Polyolefin fibres and tapes often need the resistance to aging provided by the addition of a HALS. However, in addition to light and thermal stability requirements, converters are often faced with challenges of industrial manufacturing.
Simplified processing Processing issues and production halts during the extrusion of fibre and tapes can lead to capacity reduction or potential quality inconsistency. BASF cites the example of manufacturing of PE monofilaments for artificial turf used to make sport floors or landscaping. In this processing situation, the additives and colour- ants are usually added as a concentrated combi-batch and the filaments processed through a water bath, where water carryover is regularly experienced on the line leading to production disruption. Tinuvin XT 55 is a high performance light stabiliser
that offers a low contribution to water carryover, enabling the line to run without disruption. The stabiliser is also claimed to provide good durability and to contribute to favorable secondary properties such as colour stability, gas fading and extraction resistance. In
addition, improved cost effectiveness can be achieved through optimisation of dosage and other formulation components. Other applications for Tinuvin XT 55 include polyolefin monofilament and tape for shade nets, scaffolding, geo-textiles and big bags such as flexible intermediate bulk containers. SI Group is continuing to develop antioxidant blends
for the plastics industry, following the acquisition of the Ethanox and Etaphos antioxidants and one-pack ALBlends from Albemarle in 2014. The company says that its one-pack technology provides blends of
Plastic Additives Portfolio Antioxidant HALS UV Absorber Flame Retardant Plasticizers
PVC Stabilizers and more
www.adeka.co.jp
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