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We are uniquely positioned as a polyphthalamide manufacturer to improve the world through the power of chemistry. As we embrace this opportunity, we demonstrate our deep sense of responsibility to keep people safe and help to protect our planet. Using chemistry to accelerate innovative solutions—this is what sustainability means at Celanese. ECO-R Portfolio Zytel HTN is a versatile family of semi-aromatic polyphthalamides (PPA) nylons, engineered for exceptional strength and stiffness under demanding conditions—resisting heat, chemicals, and moisture more effectively than standard polyamides. It’s the only solution offering segregated recycled PPA grades that match the performance of conventional PPA materials Zytel HTN ECO-R provide a distinctive opportunity to integrate recycled content into high-performance applications without compromise. ECO-B Portfolio Engineered from polyphthalamide (PPA) semi-aromatic nylons, Zytel HTN delivers exceptional strength and stiffness compared to standard polyamide resins. These advanced materials maintain outstanding mechanical performance across broad temperature ranges and withstand exposure to harsh chemicals and moisture—making them ideal for demanding environments. The ECO-B portfolio is based on biobased content. For Zytel HTN segregated and mass-balanced material offerings will be available Zytel HTN ECO drop in place solutions; no requalification required
View Celanese sustainability strategy