Borealis recently announced the launch of Stelora™, a new engineering polymer that pushes the boundaries of performance and sustainability, offering leaps in strength, durability and heat resistance.
It is reported that Stelora™ was developed by Borealis in cooperation with TOPAS Advanced Polymers, the world's leading producer of cyclic olefin copolymers (COCs). It is made using a unique process that combines COCs, a relatively new transparent, high-purity polymer, with polypropylene (PP). The result is an advanced material called ethylene-propylene-norbornene (EPN) for a variety of technologically advanced applications, primarily for electric vehicles and renewable energy generation. This solution provides a sustainable alternative to traditional engineering polymers that meets the high temperature requirements required for energy-efficient power semiconductors for next-generation inverters.
"Stelora™ is a unique solution that combines enhanced sustainability with higher performance. We believe that in a short period of time, it will replace existing engineering polymers in a wide range of applications, providing our customers with cost-effective, high-performance solutions while driving circularity and energy efficiency," explains Ilkka Pentillä, CEO of Tervakoski Films Group, a long-standing customer of Borealis' capacitor stages.
Stelora's™ first commercial application was in highly heat-resistant capacitor films.
This dielectric capacitor film made from Stelora™ has all the advantages of an equivalent product made using PP resin as a dielectric, but with significant performance enhancements, including excellent heat resistance, excellent electrical properties at high temperatures, and higher efficiency. Stelora-based™ films are also fully compatible with existing processing lines, so customers can process them without investing in new equipment, infrastructure or assets.
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