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Milliken nucleating agent helps SEM Plastik win clear cup contract for milkshakes

September 30/2011

(Milliken) -- Leading Turkish sheet extrusion and thermoforming company, SEM Plastik, is using a newly formulated polypropylene to fullfil an important contract for high-clarity, high-stiffness polypropylene cups for milkshakes at a global fast-food company in the country. The improved properties of the material are largely due to the incorporation of Hyperform nucleating agent HPN-600 ei into the material. Hyperform Nucleating agent HPN-600ei is a high performance nucleating agent manufactured by additives specialist Milliken & Company.


SEM Plastiks customer had been using imported milkshake cups in 16- and 32-ounce sizes, but was unhappy with the overall quality, especially clarity. Yavuz Eroglu, owner and general manager of SEM Plastik, says the customer was also looking for a lighter cup that would provide environmental as well as economic benefits. We already had contacts with Milliken, so we worked together on the project with them together with an important Turkish polymer supplier to satisfy all its requirements, he says.


The project began around the middle of 2010, and the new grade is now almost ready for full commercialisation. SEM Plastik has been using trial product quantities for several weeks, and is targeting annual production of around 6.5 million cups. It is also making the domed lids for the cups.


Eroglu says that by using the new grade, SEM Plastik has been able to cut the weight of the cups by close to ten percent with no loss of mechanical properties. Thermoforming cycle times are believed to be between eight and twelve percent lower.


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Tags:PP, sheet extrusion.
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