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Based on its proprietary Borstar® technology, Borealis has developed a nucleating approach resulting from its own research - Borstar Nucleation Technology. The nucleating effect of Borstar Nucleation Technology is obtained in the polymerisation reactor (in situ) during the manufacture of polypropylene (PP). This is in contrast to the standard approach of adding a nucleating agent during pelletisation. Borstar Nucleation Technology has a number of advantages compared with conventional nucleation:
BNT nucleated PP (left) versus non-nucleated PP (right). The improved stiffness of Borstar Nucleation Technology materials allows for lower wall thicknesses, enabling downgauging of the end product.
Borstar Nucleation Technology based PP demonstrates benefits in a range of applications. Important among these are Borealis' portfolio of high performance PP homopolymers and heterophasic polymers for thin wall packaging, automotive, and sewage pipe segments.
The improved stiffness of Borstar Nucleation Technology materials allows for lower wall thicknesses, enabling downgauging of the end product. And, combined with the potential for cycle time and energy reduction, the unique technology allows for smaller carbon and water footprints throughout the value chain.
Borstar Nucleation Technology advantages transfer into benefits for converters and enable sustainability. The nucleating effect results in higher crystallisation temperature, faster completion of the crystallisation process and fine spherulitic superstructure. Benefits of Borstar Nucleation Technology based PP solutions for converters include:
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