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• Vulkanox 4060: a sustainable alternative to the antioxidant 6PPD;
• Aflux SD improves silica dispersion in tire compounds;
• Release agents reduce deposits in the production process;
• Resorcinol-free coupling agent systems optimize the bonding of rubber and reinforcing materials;
• Innovative, talc-free additives;
• Tire Technology Expo 2026 (tiretechnology-expo.com), March 3-5, Hannover, Hall 20, Booth 2050.
With these solutions, the specialty chemicals company is helping tire manufacturers to stabilize and improve the safety and material efficiency of their processes, reduce their ecological footprint, and enhance the efficiency of modern tires.
Sustainable alternative to 6PPD: Vulkanox 4060
Against the backdrop of stricter regulatory requirements for the antioxidant 6PPD particularly in the US, but also within the framework of European legislation LANXESS developed Vulkanox 4060 (N, N'-dicyclohexyl-1,4-phenylenediamine, CCPD) as an alternative with an optimized environmental profile. In tire compounds and finished tires, laboratory and application tests have demonstrated that the product provides comparable protection against oxidative aging.
LANXESS is preparing to register the product in accordance with the European REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulation for volumes exceeding 1,000 tons. Commercial production is scheduled to begin in the middle of the year.
Aflux SD efficient processing agent for silica dispersion
Aflux SD is a processing agent for silica that improves the flow behavior of compounds and the dispersion of fillers, especially when used with functionalized polymers. This additive is made from sustainable raw materials, is free of Substances of Very High Concern (SVHC), and significantly improves silica dispersion. Among other things, this reduces the Payne effect, i.e., the rolling resistance of tires, their wear resistance, and wet grip are improved.
Regulation as a driver of innovation
Talc is used in the rubber industry as both a release agent and a filler. However, regulatory pressure on talc is increasing. The World Health Organization’s International Agency for Research on Cancer (IARC) recently reclassified talc as “probably carcinogenic to humans” (category 2A).
Due to this classification, talc will be listed prominently in the digital product passport, in accordance with upcoming Ecodesign for Sustainable Product Regulation (ESPR) requirements. Consequently, interest in talc-free products is growing within the industry. As a logical consequence, LANXESS now offers the entire Rhenogran and Rhenoslab portfolio talc-free.
Cohedur RA is a safe alternative to resorcinol in coupling agent systems for textiles or steel cord. It contains no resorcinol, disperses easily, and prevents the blooming effects that typically occur with resorcinol-containing products.
Solutions for the production process
Rhenodiv BO-3900 Pearls Cool is a mineral-free, cold-water-dispersible batch-off release agent that significantly reduces deposits on plant surfaces. Thanks to its pearl form, the product can be dosed reproducibly and processed completely dust-free. Additionally, Pearls Cool impresses with its sustainable, resource-saving formulation.
The filler-free interior spray solution Rhenodiv BP-338 ensures that the vulcanized tire can be cleanly and without defects removed from the bladder after vulcanization. Although the product is not chemically reactive, it achieves the release effect of reactive systems. It requires significantly less material consumption than conventional solutions, and unlike traditional reactive systems, it does not release hydrogen during processing.
Portfolio for tire production
LANXESS is one of the world’s leading providers of rubber additives and system solutions for the rubber processing industry. The product portfolio includes a wide range of additives specifically used in tire compounds. These include vulcanizing agents and rubber additives in pre-dispersed and other delivery forms, processing accelerators, anti-reversion agents, zinc oxide, antioxidants, and mastication agents. The range of release agents comprises granulated batch-off products, interior spray solutions for single and multiple mold release, and bladder coatings. Outside, finishing, and tire marking paints complete the portfolio.
Further information from LANXESS is available at the trade fair and online.
About LANXESS
LANXESS (lanxess.com) is a leading specialty chemicals company with sales of EUR 6.8 billion in 2019. The company currently has about 14,400 employees in 33 countries. The core business of LANXESS is the development, manufacturing and marketing of chemical intermediates, additives, specialty chemicals and plastics. LANXESS is listed in the leading sustainability indices Dow Jones Sustainability Index (DJSI World and Europe) and FTSE4Good.
Forward-Looking Statements
This company release contains certain forward-looking statements, including assumptions, opinions, expectations and views of the company or cited from third party sources. Various known and unknown risks, uncertainties and other factors could cause the actual results, financial position, development or performance of LANXESS AG to differ materially from the estimations expressed or implied herein. LANXESS AG does not guarantee that the assumptions underlying such forward-looking statements are free from errors, nor does it accept any responsibility for the future accuracy of the opinions expressed in this presentation or the actual occurrence of the forecast developments. No representation or warranty (expressed or implied) is made as to, and no reliance should be placed on, any information, estimates, targets and opinions contained herein, and no liability whatsoever is accepted as to any errors, omissions or misstatements contained herein, and accordingly, no representative of LANXESS AG or any of its affiliated companies or any of such person's officers, directors or employees accepts any liability whatsoever arising directly or indirectly from the use of this document.
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michael.fahrig[.]lanxess.com 
