Low odour and low emissions place special demands on packaging materials. The high-purity metallocene-catalysed PP high polymers from Ultrapolymers, manufactured by LyondellBasell, meet these requirements. They have low levels of volatile organic compounds and condensable substances.
Metocene HM650V, which is typically used to produce compounds with very good organoleptic properties, has a high flowability of 150 g/10 min (230 °C/2.16 kg) and is therefore ideal for the production of compounds with very good organoleptic properties. Processing by injection moulding intended. The high rigidity and low tendency to warp ensure a high level of stability. Good dimensional stability of the moulded parts made from it. In addition to low-emission automotive components for use in the interior and under the bonnet, with reinforcing and filling materials, containers and rigid packaging for odour-sensitive contents are also important areas of application.
Metocene HM648T is optimised for thin-wall injection moulding. It is nucleated, contains an antistatic additive and combines high flowability with high rigidity and transparency, excellent organoleptic properties and low warpage. This makes it suitable for Odourless and tasteless containers such as cups, jars, lids or closures for food and cosmetics, also for contact with drinking water.
With an MFR of 1800 g/10 min (230 °C/2.16 kg), the equally high-purity Metocene MF650Y is an easy-flowing PP homopolymer that also has a narrow molecular weight distribution and a low processing temperature. It is therefore primarily suitable for the production of fine and uniform microfibres in the meltblown process, which are then used for nonwovens or filters. Another application is as a carrier material for colour additives.
„With our expanded Metocene portfolio, we have peroxide-free PP homopolymers that are superior to conventional Ziegler Natta-catalysed products in many areas. They outperform them in terms of transparency, stiffness, dimensional stability, scratch resistance, barrier effect and processability. In addition, they have excellent organoleptic properties and emission values thanks to low levels of volatile substances. Their lower melting point helps to save energy and their high purity reduces mould and nozzle deposits. This expands the range of applications for polypropylene in many particularly demanding areas.“
Rainer Konrad, Ultrapolymers-Product Manager
Source: Ultrapolymers
