Borealis has unveiled the new BorPure™ multimodal HDPE grades to develop screw caps with high organoleptic performance for bottled water and soft drinks. The company claims the new grades retains 'as bottled' taste without compromising on cap quality, aesthetics or converters' demands for higher productivity with manufacturing cost reductions. Enabling faster production with low energy requirements and maintenance costs, multimodal PE grades have a higher flow than unimodal solutions at similar melt flow rate that significantly improves processing ease and allows converters to lessen holding pressure during injection or compression moulding. Also, the company claims multimodal BorPure grades offer good low temperature impact strength, an excellent stiffness/impact balance and improved surface aesthetics along with high oraganoleptic behavior.
The company's BorPure MB6561 is designed for still and sparkling water and carbonated soft drinks, MB6562 for carbonated soft drinks, and MB7541 for still water. Borealis will launch all the three at Plast '09 in Milan. The company also offers an BorPure polypropylene (PP) grade which is a PP random copolymer with organoleptic properties. The PP grade is designed for the bottled water, sports and energy drinks market.