Evonik Boosts Hydroxyl-Terminated Polybutadiene Output to Address Surging Demand

Specialty chemicals company Evonik has initiated the expansion of its POLYVEST® HT plant in Marl, Germany. The Coating & Adhesive Resins business line anticipates the completion of additional production capacity for its hydroxyl-terminated polybutadienes (HTPB), marketed under the brand name POLYVEST®, by as early as the second quarter of 2024. This expansion project, backed by a double-digit million-euro investment, aims to fortify the company's standing as a cost and innovation leader in a highly competitive market, according to Dr. Stefan Pfaffenbach, Head of the business line.

The expansion initiative comes a decade after the commencement of production at the HTPB plant in Marl. Dr. Jürgen Herwig, Head of the Polybutadienes and Specialty Acrylates product line, emphasized the intricacies involved in dealing with dual-use products like polybutadienes, necessitating a high level of sensitivity and expertise in customer and regulatory interactions. The company relies on the experience and proficiency of its colleagues to effectively market this highly specialized product and promote the additional capacities.

The production process is characterized by backward integration, with butadiene produced directly at the Marl site and hydrogen peroxide supplied by the Evonik Group. This strategic approach ensures supply security for the raw materials essential for POLYVEST® production. Additionally, Evonik's Application Technology and Research & Development teams are based at the Marl site, establishing a seamless link from laboratory development and testing to production.

POLYVEST® HT, a liquid, hydroxyl-terminated polybutadiene produced through free-radical polymerization, boasts a highly hydrophobic polybutadiene backbone and accessible primary hydroxyl groups for precise chemical modification. Widely used as a polyol component, POLYVEST® HT finds applications in various adhesive and sealant formulations. POLYVEST® HT-A is specifically designed for aerospace applications.

The Smart Materials division, encompassing businesses with innovative materials that offer resource-saving solutions and replace conventional materials, is a key focus for Evonik. These materials provide intelligent responses to contemporary challenges such as environmental concerns, energy efficiency, urbanization, mobility, and health. In 2022, the Smart Materials division generated sales of €4.83 billion with around 7,900 employees, showcasing the significant impact and contribution of Evonik in this pivotal sector.

Evonik stands as a global leader in the specialty chemicals sector. Operating in over 100 countries worldwide, the company reported revenues of €18.5 billion and an adjusted EBITDA of €2.49 billion in 2022. Evonik's approach extends beyond mere chemistry, focusing on innovative, profitable, and sustainable solutions for its clientele. With a workforce of about 34,000, the company is united by a shared objective: to enhance life both now and in the future.