Milliken PP additive for thermoforming uses cleaner chemistry to deliver brighter look

- New Hyperform® HPN® 909ei offers one less SML for food-contact applications

Ghent, Belgium – Designed for use by thermoformers, Milliken & Company’s Chemical Division’s latest high-performance additive for polypropylene (PP) homopolymers delivers an excellent balance of physical properties and superb aesthetics—all enabled through cleaner chemistry.

Hyperform® HPN® 909ei checks all those boxes, and more, as this formulation also addresses an important aspect for safety reassurance in the European Union. Tailored specifically to minimize migration, especially in food-contact applications, this new grade of Hyperform has one Specific Migration Limit (SML) less than the previous generation product. A lower number of SMLs means there is one less substance that must be monitored and tested for, reducing customers’ compliance burden. With this simplification, the reassurance of safety is even stronger. This is vital, given that this type of PP homopolymer is typically used to thermoform drink cups and lids, food packaging, and trays.

Traditional nucleating agents require customers to sacrifice impact to gain greater stiffness. Hyperform HPN 909ei, however, delivers improved stiffness (flexural modulus) while maintaining the impact performance. It also provides isotropic shrinkage (similar shrinkage in both directions, thereby reducing warpage) and a higher heat-deflection temperature, which offers improved heat resistance vital for hot-fill and microwaveable applications. It also helps to override the nucleation effects of pigments, thereby reducing design complexity.

Hyperform HPN 909ei achieves all this without sacrificing aesthetics. “In fact,” notes Bhavesh Gandhi, global product line manager for Milliken’s Chemical Division, “it yields products with excellent optical properties, including lower haze, reduced yellowing and an overall cleaner look. This can further enhance sustainability,” he says, “by allowing end users to replace other resins in various applications with highly recyclable polypropylene, with its low overall carbon footprint.”

With its growing range of Hyperform HPN high-performance additives, Milliken continues to help converters improve their processing and enhance the performance of their final PP parts.

For more information, visit chemical.milliken.com/products/hyperform-hpn-909ei.

About Milliken

Materials science expert Milliken & Company knows that a single molecule has the potential to change the world. With innovative solutions across the textile, flooring, specialty chemical, and healthcare industries, Milliken answers some of the world’s greatest challenges. Named to the World’s Most Ethical Companies list by Ethisphere Institute for 14 years, the company meets the moment with an unwavering commitment to delivering sustainable solutions for its customers and communities. Eight thousand associates across 46 locations globally rally behind a common purpose: to positively impact the world for generations. Discover more about Milliken’s curious minds and inspired solutions at milliken.com and on Facebook, Instagram, LinkedIn and Twitter.

Hyperform, HPN, Milliken, and the Milliken logo are registered trademarks of Milliken & Company in the US, E.U. and elsewhere.

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