The Borealis Sirius catalyst technology makes it possible to produce chemical substances – so-called catalysts – engineered specifically for the production of functionalised polymers for Borealis and its customers.
Catalysts are substances required in small quantities for the production of plastics. In value-adding polymerisation processes, catalysts assist in the transformation of simple raw materials into complex molecules which exhibit a variety of properties for diverse applications. To a great extent they determine the final properties of a product, e.g. hardness, plasticity and/or elasticity. Thanks to the high degree of innovation found in this product, the Borealis Sirius catalyst technology is protected by 60 international patents and was recognised by the prestigious Giulio Natta Award in 2012.
Borealis inaugurated a new catalyst plant utilising the Borealis Sirius catalyst technology at their Linz, Austria location in June 2013. The company invested EUR 100 million in the construction of this facility.
The Borealis Sirius catalyst technology makes solid spherical catalyst particles through innovative emulsion based process without external carrier material. It has raised considerable interest in the global polyolefin community because of its ability to improve control of the active site distribution in ZN polymerisation catalysts in a single-step process, resulting in better regulation of polymerisation reactions. Single site catalysts can also be made utilising the Sirius technology, with benefits in productivity and homogeneity across the catalyst particle.
Using a proprietary Borealis Sirius catalyst in the Borstar® process allows for production of superior materials in a significantly more efficient way than with conventional technologies.
Innovations are focused on unique combinations of properties and offer differentiation through a step change in purity, improved optical properties, improved stiffness–impact balance and excellent processability supporting high line speeds. One such example is the superior transparent and soft PP impact copolymers for medical packaging with lower extractables, lower emissions and better retention of mechanical and optical properties in steam sterilisation. Using Borealis Sirius catalyst technology with the advantages described above, Borealis can produce a wide range of catalysts.
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