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Milliken’s additive solutions at recycling show

Source:Milliken Chemical Release Date:2021-10-08 878
ChemicalPlastics & RubberOthersCompoundingRaw Materials & Compounds
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At PRSE 2021, Milliken is presenting its additive solutions to boost recycling and move forward in the circular economy

Milliken & Company supports the plastics recycling industry with advanced polymer additives that allow for the increased use of recycled content by improving the properties of recycled polypropylene (rPP) itself. The company’s solutions will be presented during the Plastics Recycling Show Europe (PRSE) 2021, Nov. 4-5 in Amsterdam.

 

With its additives and colourants, Milliken offers many ways to improve resin formulations, compounds and end products. It will be showcasing its broad portfolio at PRSE on Stand H21 and offering access to the vast technical knowledge of its various subject matter experts.

 

At the show, the following products and initiatives will be highlighted:

 

  • DeltaMax® Performance Modifiers for PP used by converters processing recycled polypropylene (rPP) or impact copolymer (ICP) resins;

  • A soon-to-be-launched concentrate used to create controlled rheology grades of recycled PP that improves the resin’s properties;

  • Partnership with PureCycle Technologies to purify recycled PP; and

  • Engagement with HolyGrail 2.0, Europe’s Digital Watermark Project.

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Enhancing PP’s properties

Milliken’s DeltaMax Performance Modifiers for polypropylene help contribute to a circular economy by enhancing the impact strength and melt-flow properties of rPP resins, blends and PP impact copolymers. DeltaMax can raise melt flow by as much as five times while maintaining impact and stiffness properties. This allows converters to increase operating efficiencies and create more innovative part designs with easier flow through molds.

 

DeltaMax technology is highly effective in modifying post-consumer and post-industrial recycled resins. It elevates impact strength and melt flow to the same levels as – or better than - those of virgin resin. This enables compounders and converters to incorporate up to 100% recycled PP without sacrificing performance or processing.

 

Controlled rheology

The latest addition to the Milliken portfolio – a concentrate used to create controlled rheology (CR) grades of polypropylene that extends and improve the resin’s characteristics, is also on exhibit. Controlled rheology PP is produced by promoting controlled chain scission of PP (both virgin and recycled) to yield a product with a lower molecular weight (MW) which results in a higher melt flow index (MFI). The result is an easier, more consistent flow. Resin producers, injection molders and extruders should experience improved processability when using this concentrate.

 

Partners in the cause

Milliken is passionate about helping to drive recycling and the circular economy but knows it cannot do it alone. Success in this area requires partnerships and collaboration. One such example is Milliken’s ongoing work with PureCycle Technologies, which began early in 2019. PureCycle’s patented recycling process, developed and licensed by Procter & Gamble Co., separates colour, odour and other contaminants from plastic waste feedstock to transform it into virgin-like PP. Milliken, whose additives will play a critical role in reinvigorating recycled polypropylene, has formed an exclusive supply relationship with PureCycle to help solve the plastics end-of-life challenge.

 

Additionally, Milliken’s Chemical Division has joined the Digital Watermarks Project, a large-scale initiative testing the viability of digital watermarking technologies for the accurate sorting of plastics. The project was part of HolyGrail 1.0, a pioneering initiative facilitated by the Ellen MacArthur Foundation that brought together brand owners, retailers, recyclers, packaging producers and sorting technology providers from across the plastics value chain to investigate ways to improve the sorting of post-consumer plastics. HolyGrail 2.0, the 2nd iteration facilitated by AIM, the European Brands Association, will take this initiative to the next stage by validating the concept and the technology on a semi-industrial scale. The project is due to report on its findings in mid-2022.

 

 


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