MATERIALS


intended mainly, but not exclusively, for use in polypropylene compounds. It will be of particular interest in automobile interior applications. Hyperform HPR-803i can be used to


partly or fully replace talc in compounds. It has the same effect on compounds at much lower dosage rates (typically between half and two- thirds lower). Adam Watson, in charge of marketing


for the Hyperform HPR range, says that compounders used to handling talc will appreciate the improved flow characteristics of the new grade.


Better ballance Case studies recently carried out on automotive interior trim parts have demonstrated that use of Hyperform HPR-803i enables production of parts that weigh as much as 20 per cent less than talc-filled parts but have a better balance of stiffness and impact strength. Furthermore, the parts have a surface finish


that is not only better out of the mould but is also more resistant to scratching. While the initial target for Hyperform


HPR-803i was PP injection moulding compounds for auto interiors, Watson says Milliken and its partners are continuing to find new uses. For example, moulding trials with


Customers have also done successful trials with foam materials as well as with extruded sheet. Hyperform HPR-803i can be used in extrusion blow moulding applications and with thermosetting resins, too.


Shorter cooling time Watson notes that trials carried out on compounds containing Hyperform HPR- 803 have already shown that it is possible to produce parts with a shorter cooling time, and hence a lower overall cycle time, than with talc. This advantage is retained with Hyperform HPR-803i. Furthermore, test parts demonstrated


excellent performance under thermal stability performance testing. Recycled material exhibits little loss of


Fig. 2. Arnitel PB500-H meets the required technical requirements, while also offering a cost advantage over other solutions.


a steam iron base plate showed Hyperform HPR-803i increased productivity compared to a talc-filled compound and yielded parts with lower warpage.


mechanical properties, unlike glass-filled compounds. Wear on equipment is reduced at all stages of processing. “Our development programme is ongoing,”


says Watson. “Partners we have worked with so far have appreciated the ability of this new additive to improve processing and in-use performance at reduced cost. “We are now working with processors


and end-users to identify and develop more applications that will provide benefits along the process chain.” ❒


Frankfurt am Main · 18 – 22 June 2012 Be informed. Be inspired. Be there.


+++ 4,000 exhibitors from 50 countries +++


+++ 180,000 participants from 100 countries +++ +++ 30,000 executives +++ exhibition space +++ +++ 900 lectures +++


+++ 140,000 m2 www.achema.de


Anz_ACHEMA_2012_185x121.indd 1


Circle 14 or ✔ at www.engineerlive.com/ece


07.09.2011 16:32:01 Uhr


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