Caps and Closures

Exclusive technologies bringing innovative results

Borealis provides a range of specialised products for both standardised and customised caps and closures, with a focus on product development bringing enhanced advantages and benefits to the entire value chain.

The caps and closures industry is rapidly evolving and must accommodate the demands and needs of converters, brand owners, and end consumers. Converters require materials which enable energy savings and cost reduction in production; are easy to process and offer good material flowability; deliver consistent and reliable quality; and provide excellent performance at the filling line. When adding brand owners and end consumers to the equation, demands increase even more: packaging must ensure the optimal balance of product differentiation, organoleptics, security of contents and user convenience with a focus on delivering sustainable and lightweight solutions.

Benefits for converters and end consumers

Borealis provides a range of specialised products for both standardised and customised caps and closures. Our focus on product development brings enhanced advantages and benefits to the entire value chain. Our polymer design capabilities and exclusive technologies, such as Borstar® Nucleation Technology (BNT) and Borstar® multimodal technology, allow us to offer high quality polypropylene (PP) products that meet the needs of this complex sector. Furthermore, our BorPure™ high density polyethylene (HDPE) grades deliver high processability in combination with excellent organoleptics and outstanding production economy. Our BorPure HDPE grades are the Borstar family of multimodal organoleptic HDPE materials dedicated to caps and closures for carbonated soft drinks, bottled water, juices and teas.

Dedicated value-adding solutions thanks to leading-edge technologies

Our Borstar® Nucleation Technology provides significant, value-adding advantages in PP:

• Increased stiffness without negatively affecting drop impact resistance, thus enabling downgauging and ultimately, material savings
• Limited impact of colouring on dimensional stability, allowing for fast colour change during production without the need to adjust process parameters, providing increased cost effectiveness
• 10%-20% cycle time reduction, mainly through shorter cooling time and easier demoulding due to faster crystallisation
• Energy consumption savings of up to 10% due to possibility of reducing extruder temperature
• BorPure™ MB5568: underwritten by sustainability

The Borealis BorPure family of HDPE organoleptic grades, designed on our Borstar multimodal technological platform and dedicated for the beverage closures industry, has been recently further upgraded with the addition of a new advanced grade, BorPure™ MB5568. Thanks to its enhanced Borstar polymer design, BorPure™ MB5568 is an excellent platform for further lightweighting without compromising material performance properties. It has the following advantages:

• 50% improvement on the already excellent ESCR of its predecessor, MB6561
• Flowability equal to benchmark monomodal MFR2 HDPE resin
• Excellent organoleptic properties which are regularly monitored to ensure batch-to-batch quality consistency
• Cost effective and sustainable choice for the entire beverage closures value chain
• Bringing value through sustainability to the caps and closures industry

Borealis is a leading supplier of innovative solutions for the caps and closures industry. Our customer-driven approach to innovation coupled with our polymer design capabilities and exclusive technologies allow us to offer timely, value-creating products for the complete value chain in a sustainable way.