From the Sector

• Results of experiments conducted by the University of California’s prestigious Scripps Institution of Oceanography in San Diego provide further scientific proof that LENZING™ fibers offer an effective substitute to synthetic fibers that are part of the pressing problem of plastic pollution in our oceans.

Lenzing/San Diego – The Lenzing Group, a world-leading provider of wood-based specialty fibers, has received further scientific proof of the biodegradability of its fibers. In a study published in October 2021 , scientists from the prestigious academic research institute Scripps Institution of Oceanography (SIO) at the University of California, San Diego confirmed that wood-based cellulosic fibers biodegrade in the ocean within a short period of time at the end of their life cycle, making them a better alternative to fossil-based fibers. The research was the result of an independent project trying to understand the “end-of-life” scenarios for textiles and nonwovens discarded in the environment.

SIO has a global reputation for being one of the oldest, largest and most important marine research centers worldwide. In this study, SIO compared the degradation processes of nonwovens made from fossil-based synthetic materials such as polyester with those of cellulosic materials such as Lenzing’s wood-based lyocell, modal and viscose fibers in specific scenarios – under various real oceanic conditions and controlled aquaria conditions. The results of these experiments are striking: while wood-based cellulosic fibers fully biodegraded within 30 days, the fossil-based fibers tested were practically unchanged after more than 200 days.

The biodegradability of LENZING™ fibers was also tested in the laboratory of Organic Waste Systems (OWS) in Belgium – one of the world's leading companies in biodegradability and compostability testing – which showed data confirmed by those found with the real-life measurements at Scripps. The OWS assessment was conducted in accordance with applicable international standards and reflects relevant natural and artificial conditions in which biodegradation can occur. Certificates from the certification organization TÜV Austria show that LENZING™ fibers rapidly biodegrade in all test environments (soil, industrial composting, home composting, fresh water and marine water) within the time frames set by the applicable standards.

Lenzing also welcomes the EU’s targeted measures to combat plastic waste in general, such as those relating to the single-use plastic directive (EU) 2019/9043. In its recently adopted guidelines for implementing the directive, the EU Commission stipulates the specific products that fall under this category, which is a well-needed effort to provide clarity to the EU member states for their joint campaign against environmental pollution from plastic waste. Lenzing’s wood-based, biodegradable cellulosic fibers can be part of a sustainable and innovative solution to this man-made problem that will continue to grow. As of July 2021, the single-use plastic directive sets out standardized labelling requirements for certain products, either on packaging or on the products themselves, which include plastic-based feminine hygiene products and wet wipes for body care or household use. This is a start to tackle the problem: educate the consumer and offer alternative materials with better circularity.

Mexico and Switzerland - SANITIZED customers in the polymer industry in Mexico will profit from CHEMLOGIS’s expertise and established sales network. The Sanitized® antimicrobial additives for hygiene function and material protection for polymers will be marketed in Mexico by our new sales partner.

SANITIZED and CHEMLOGIS, two experts in their fields with similar understanding of values, have joined forces; both deal in high-performance products for the Polymer industry combined with the best possible service, which begins with the conception of value-added products and their optimum use. This collaboration with SANITIZED is a good fit for the portfolio as both companies focus on innovative, customer-specific solutions.

With the addition of the antimicrobial Sanitized® additives at CHEMLOGIS, the Polymer industry gets a new overall package, offering more than just products for hygiene function and material protection. As an addition to the core product services, SANITIZED supports development and production, regulatory queries and marketing through the use of the Sanitized® Ingredient Brand, which characterizes the end products within their differentiation and emphasis on quality.

The antimicrobial additives for Polymers from SANITIZED protect end products from bacterial infestation, growth of algae and mildew, material degradation, biofilms, pink stain, and odors caused by microbes. The Polymer industry uses the antimicrobial additive in flooring, industrial coatings, artificial leather, roof membranes, pool liners, tarpaulins, and all extruded products.

“Everyone at CHEMLOGIS is very excited to partner with SANITIZED for the sale of their antimicrobial products to the Polymer processors in Mexico. Together we bring a highly focused approach to customer´s needs in terms of technology service and products” says CHEMLOGIS’s CEO Ing. León Freiman K.” “The technical competence and the strong customer focus impress me about CHEMLOGIS”, says Michael Lüthi, Head of BU Polymer at SANITIZED AG.

•    New, sustainable, ready-to-use solutions for plastic auto parts to support China’s electric vehicle boom
•    Stronger, softer nylon polyamide fibers plus fast processing for clothes, carpets & industrial applications
•    AddWorks blends lower total cost of ownership & reduce production complexity while enhancing performance

Muttenz, May 3, 2018 – Clariant, a world leader in specialty chemicals, introduced new additive solutions for plastics materials at Chinaplas 2018.

“Our innovations focus on higher performance at better convenience for a sustainable future,” says Stephan Lynen, Head of Clariant BU Additives. “At Chinaplas 2018 we demonstrated our technical and market capabilities around the theme of e-mobility. The immense changes in mobility call for lighter, safer and smarter vehicles. We offer new additive solutions, such as AddWorks, and technical capabilities to respond to this demand. We are accompanying this with a series of investments such as new production facilities in China.”

Clariant’s new AddWorks solutions – AddWorksATR 146, AddWorks LXR 568 and AddWorks TFB 117 – are specifically aimed at improving performance and efficiency of plastics materials for compounders, polymer and fiber producers in China’s major plastics manufacturing segments. All three solutions are part of the globally available portfolio.

The full AddWorks portfolio consists of differentiated market-specific synergistic additive blends that streamline production processes and create value for customers while enhancing performance. Each solution is customized to specific market needs, underlined by broader considerations such as emission reduction, and less energy and resource usage.

Sustainability and performance for the world’s largest auto market
To support the significant investment in electric vehicles in China, Clariant launched two additive innovations that improve the lifetime of lightweight automotive parts and under-the-hood applications and reduce VOC emissions in an easy to use single solution.

AddWorks ATR 146 is a new low dosage, sulfur-free heat and light stabilizer for filled polypropylene (TPO) compounds used in interior applications. Its exceptional heat and light stability and long term color retention offers the automotive industry unmatched performance. It shows no surface cracking after 700 hours at 150°C, which enables dashboards, instrument panels, door panels and pillars to maintain their aesthetics longer than with traditional stabilizers. It also contributes to reducing blooming and VOC emissions, supporting the common effort to make automotive interiors healthier and odorless.

AddWorks LXR 568 is a high performance processing stabilizer that helps to prevent plastic resins, especially polyolefins, from degradation at high processing temperatures. For the automotive industry, this reduces the tendency of injection molded polypropylene interior car parts to turn brittle during heat exposure, enabling them to maintain a defect-free surface. It also has low migration and low fogging that support healthier in-cab environments.

AddWorks LXR 568 combines outstanding color and melt flow protection with good resistance to hydrolysis and high thermal stability. This makes it ideal for interior and under-the-hood powertrains and wider application areas such as packaging films. It is available in free-flowing pills and micro-pills which are easy and convenient to use.

Softer, stronger polyamide fibers for clothes, carpets and industrial applications
Within the next three years, China is expected to account for 40% of the world’s nylon production and more than 30% of the nylon resin consumed globally[1]. The new AddWorks TFB 117 offers a number of benefits to help stabilize and smoothen fiber production processes, protect color, and improve heat stability and mechanical properties of fibers. AddWorks TFB 117 ensures smooth spinnability with less filaments breakage, even at low processing temperatures and at high speed spinning up to 5,500 m/min.

Martin P. J. John, Head of BL Performance Additives at Clariant, comments: “AddWorks solutions are an ideal fit with China’s priority of achieving more sustainable production. They save time and reduce complexity along the production process, with easy to use formats that reduce health risk and chemical waste. Our new state-of-the-art production facility in Zhenjiang, China, which opens later this year, is dedicated to the manufacturing of AddWorks to deliver innovative solutions tailored to the needs of the market. Made for China in China.

In addition to AddWorks, Clariant presented Exolit® OP 1400, a highly stable non-halogenated flame retardant enhancing safety during the charging process. It also provides outstanding thermal stability for under the hood applications. Exolit OP 1400 has been awarded the Clariant EcoTain® label for outstanding sustainability and performance.  

Clariant also introduced two ranges of performance waxes that smoothen the production of automotive plastics for under the hood applications, Licowax® and Licocare® RBW. The recently launched Licocare RBW is a series of multi-purpose additives based on crude rice bran wax. They offer better shaping flexibility, better mechanical properties and enhanced surface finish, which results in a reduced rejection rate and a more effective dosage.