| New thermoformable PBT|
Up to now the melt strength of PBT was not sufficient to make it a preferred product for extrusion. By connecting and branching the polymer chains via tailor-made additives the the international company BASF obtained a very high melt strength. This makes the Ultradur® B6551 LNI a possible material for pipes, profiles and mandrels – and the Ultradur® B6560 M2 FC TF the material of choice for extrusion of films and thermoforming of packaging or technical parts.
The new grades combine all the characteristics of the Ultradur® family like high melting point, low water uptake, high dimensional stability and good barrier properties.