Fossil-based aniline production generates approximately 20 million tonnes of CO₂ emissions annually worldwide. To specifically reduce the carbon footprint of aniline production, Covestro uses a tailored microorganism in its bio-based process that converts industrial sugars from plant-based biomass into an intermediate product through fermentation. In a second step, chemical catalysis converts this intermediate into aniline with 100% plant-based carbon.

Continuous Fermentation Process: A Technological Breakthrough

Bio4PURConti aims to take this a step further: instead of the fed-batch method used so far, in which raw materials are added and product harvested in stages, the project targets a continuous fermentation technology for the first time. By using plant-based sugars, e.g. from hardwood biomass, it offers a renewable feedstock pathway. The resulting bio-based aniline is fully drop-in compatible with existing polyurethane value chains, meeting MDI specifications without requiring changes to downstream processes, making it a powerful lever for defossilization well beyond the chemical industry itself. The project scales from lab to 1.5 m³ semi-industrial demonstration at Bio Base Europe Pilot Plant (Ghent) and Covestro (Leverkusen), integrating cell recycling, real-time analytics and downstream processing. Key objectives include higher space-time yields and significant improvement in product carbon footprint.

"Bio4PURConti is a landmark project – not just for Covestro or the aniline market, but for the entire field of industrial biotechnology," says Dr. Markus Dugal, Head of Process Technology at Covestro. "Demonstrating continuous fermentation at semi-industrial scale for a high-volume raw material like aniline will set a new benchmark for what biotech processes can achieve in the chemical industry. Biology and engineering, when combined at scale, can fundamentally reshape how we produce the materials the world depends on."

A Consortium Driving European Biotech Leadership

The 10-partner consortium, spanning 7 countries, brings together leading industrial and academic organisations: Covestro Deutschland AG (Germany), Fibenol Imavere OÜ (Estonia), University of Stuttgart (Germany), Bio Base Europe Pilot Plant VZW (Belgium), Center for Advisory Systems in Technology, Dortmund e.V. – ZEDO (Germany), Norwegian University of Science and Technology – NTNU (Norway), Axel'One (France), VTT Technical Research Centre of Finland Ltd (Finland), Cluster Industrial Biotechnology – CLIB (Germany), and Asociación Española de la Innovación en el Marketing y la Inversión Sostenible – AEIMIS (Spain).

The project has a total budget of €8.4 million, with €7 million in EU funding, and runs for 42 months. Together, the consortium aims to significantly reduce the Product Carbon Footprint (PCF) of aniline in the future. As one of the world's leading aniline producers with a production capacity of over one million tonnes per year, Covestro is uniquely positioned to drive this transformation towards a more sustainable aniline production.

Funded by the European Union. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the Circular Bio-based Europe Joint Undertaking (CBE JU). Neither the European Union nor the granting authority can be held responsible for them.
This project has received funding from the Circular Bio-based Europe Joint Undertaking under the European Union's Horizon Europe research and innovation programme under Grant Agreement No. 101292477.

The project is supported by the Circular Bio-based Europe Joint Undertaking and its members.

Across industries, companies must increasingly demonstrate sustainability progress to meet market requirements, Scope 3 reporting needs, and comply with growing regulatory requirements. ”The CQ-Configurator supports these needs by enabling rapid, data-based environmental performance assessments and by improving transparency along the polyurethane value chain.”, said Patrizia Wegner, VP Sales Flex Foam EMLA, Covestro.

“Companies can now compare material choices and reach their desired product sustainability profile in just a few clicks — eliminating the need for time-consuming calculations and lengthy alignment processes”, said Dennis Wagner, Marketing Manager Soft Furniture, Covestro.

From data to decisions: Making sustainability tangible

The CQ-Configurator intuitively allows users to select between flexible or rigid foam applications — such as mattresses, insulation panels, or even special formulations — define technical properties and specify shares of mass-balanced isocyanate and polyol options. The tool then calculates the associated CO₂ impact and sustainable material share of each formulation scenario.

By translating formulation choices into clear, application-specific sustainability results, the CQ-Configurator provides companies with a transparent fact base to support internal decision-making. It enables rapid comparisons of different material options with exportable results that facilitate cross-functional alignment and customer discussions. At the same time, the tool links material choices to market-relevant sustainability benefits, supporting both product development and marketing strategies.

Designed for broad industry use

The tool supports various professional roles involved in product development, including R&D specialists, procurement teams, sales managers, marketing professionals, and sustainability experts. Its intuitive interface ensures that both technical and non-technical users can leverage the insights effectively.

“As sustainability becomes a key differentiator across markets such as bedding, furniture, construction, and appliances, the CQ-Configurator helps companies to make informed choices that align product performance with economic considerations,” added Dennis Wagner.

With the launch of the CQ-Configurator, Covestro is the first European PU materials supplier to offer a comprehensive digital sustainability assessment tool focusing on multiple polyurethane foam applications. Built on third-party verified raw material LCA data¹ and long-standing PU expertise of Covestro, the tool provides transparent and credible sustainability metrics that support informed decision-making across the value chain. The company continues to expand its digital portfolio to support customers in meeting their sustainability targets.

For more information and to request a demo, please visit the CQ-Configurator landing page.

_{1 Methodology for LCA data calculation certified by TÜV Rheinland}

"With our automated laboratory, we can work together with our customers on the future of coatings and adhesives. Because it operates almost completely autonomously and learns from our existing knowledge and data lake as well as newly generated data, it makes the process of optimizing and developing formulations many times more efficient and precise. This allows us to optimize existing formulations faster or even develop completely new formulations for and together with our customers. We can say: We are reaching a new level of modern research," says Thomas Büsgen, head of the laboratory.

Testing Formulations with Covestro Binders and Crosslinkers 

Specifically, the new laboratory will test formulations with Covestro binders and crosslinkers for coatings and adhesives. Their clever selection ensures properties such as hardness, adhesion, opacity, gloss, or durability. Such formulations typically consist of seven to 15 components, whose combination determines the properties of the final product. The resulting high number of possible combinations means that standard formulations are usually used. The new laboratory now enables more extensive test series, also thanks to the computer-aided design of test series and the use of automation.

"Our new automated laboratory gives us more possibilities for testing formulations. It relieves our specialized laboratories of their standard tasks and can analyze samples more systematically. This allows us to focus our expertise and experience even more on customer-specific topics or try approaches we couldn't have implemented otherwise," says Martin Merkens, Head of Sales & Market Development EMLA in Covestro's Coatings and Adhesives business entity. “This will particularly help us in the area of circular economy: Alternative raw materials, for example bio-based or recycled materials, can be tested faster and evaluated for their properties in the final product.”

Facility to Run Tens of Thousands of Tests Annually 

The new facility can operate 24 hours a day, 7 days a week. The goal is to run tens of thousands of tests annually. This sets a new standard in terms of number, variety, precision, and testing speed. Another advantage: The automated laboratory generates a large amount of structured data. The knowledge about formulation possibilities and influencing factors thus will grow rapidly. The collected data, combined with measurement data from existing studies, is evaluated using special machine learning algorithms to further improve formulations. Artificial intelligence is also used to predict new experiments based on property goals and simultaneously verify them in the automated laboratory – creating a self-learning system.

In addition to formulating water- and solvent-based 1K and 2K systems, the automated laboratory also performs numerous material tests on the raw materials themselves, their formulations, and applied films. Application can even take place in different climates in the lab to simulate product use under application conditions. The progressing laboratory digitalization across Covestro also enables easy forwarding of generated samples to more specialized testing laboratories. This makes it possible to supplement the datasets with market-specific test results and identify relevant dependencies more quickly.

Covestro at European Coatings Show 2025 in Nuremberg 

At the European Coatings Show from March 25-27 in Nuremberg, experts from application development and segments such as automotive, printing & packaging, or construction & architecture will be present to discuss new, joint approaches made possible by the laboratory with customers. Visit the company's booth in Hall 4A, Stand 438. There you can learn more about the laboratory and other innovative material solutions and technical developments for the coatings and adhesives industry.

Follow further updates on this topic here. 

“Trust, fairness, and equality are central values for us as an employer. By publishing salary ranges in our job postings, we demonstrate that we live by these values, take the concerns of applicants seriously, and promote an open and fair dialogue,” says Sophie von Saldern, Global Head of Human Resources at Covestro. The company’s existing workforce also benefits from this transparency, as salary bands are accessible internally.

Benefits for All: Greater Efficiency, Transparency, and Fairness

This new approach goes beyond positioning Covestro as a transparent and fair employer – it fundamentally transforms the entire recruitment process. The initiative was initially piloted in engineering roles, where there is a significant skills shortage. The positive results from the pilot encouraged Covestro to extend the publication of salary ranges to all job advertisements.

“We’re already seeing early indications of increased application numbers. At the same time, the recruitment process is becoming more focused, and we’re receiving positive feedback from candidates. Applicants are assessing themselves within the salary range based on their qualifications and experience, which leads to more efficient and transparent discussions,” reports Dr. Ute Breitsohl, Head of Employer Branding & Recruiting in Germany.

Job seekers benefit from this transparency in several ways: Entry-level professionals gain clear guidance on salary expectations.
Experienced professionals can recognize the value placed on their expertise and directly discuss opportunities for development, including financial ones.
Women, who often undervalue themselves in salary negotiations, benefit from clear salary bands. For all profiles, the disclosure of salary structures allows applicants to immediately determine whether a position is financially attractive and suitable. “Our goal is to create a fair and open basis for discussion right from the start. In this way, we contribute even more to an application process at eye level,” explains Dr. Breitsohl. “The positive response from applicants confirms that our transparent approach creates trust. This enables us to focus more on development prospects and career goals in interviews.”

This initiative strengthens Covestro's position as an attractive employer. At the same time, Covestro is actively sending a signal to the labor market to raise awareness of the gender pay gap. “Only if salary ranges are disclosed transparently and comprehensibly can comparability be achieved across gender boundaries. With this step, Covestro is setting new standards for fairness and equality in the world of work,” Breitsohl continued.

Early Implementation of the EU Pay Transparency Directive

By publishing salary ranges in job postings, Covestro is preemptively fulfilling a requirement that will become mandatory for many companies in Germany by 2026. The forthcoming EU Pay Transparency Directive will oblige employers to disclose salary information during the recruitment process.

Sophie von Saldern, Global Head of Human Resources at Covestro, highlights the strategic intent behind this move: “We see publishing salary ranges not just as preparation for future legal requirements but as a strategic tool to strengthen our employer brand. The collective bargaining agreements in the chemical industry already provide attractive conditions—our additional transparency creates a win-win situation for applicants and our company.”

More targeted applications, positive feedback from departments, fewer time-consuming salary negotiations, and greater fairness: these indicators underline the success of this initiative and Covestro’s leadership role in promoting transparency and fair working conditions.

Interested candidates can find all current job postings with corresponding salary ranges on Covestro’s career page at www.career.covestro.com. The website also provides further information about Covestro as an employer and the diverse development opportunities within the company.

"With our multi-layered campaign, we are pursuing the goal of establishing contacts with many partners to advance the industry on its path to climate neutrality and the circular economy," explains Dr. Christian Haessler, one of the two project managers for K 2022 at Covestro. "This communicative 360° approach was also expressed in the motto of our appearance at K 2022, 'Crafting Connections With You'." The Red Dot label has established itself internationally as one of the most coveted seals of quality for good design.

Rüdiger Maeßen, CEO Europe at Uniplan, is equally positive: "The good co-creative collaboration and the innovative concept were fundamental to the success of this holistic campaign. Together with Covestro, we have driven the circular economy agenda in the industry by creating an authentic exchange on multiple channels. Therefore, we are even more pleased that the sustainable campaign approach not only convinced the global target audience, but also the jury of the Red Dot Award."

Creating connections with digital platform

In order to connect with target groups around the world at an early stage and offer them a holistic, long-term experience as a "home base," Covestro and Uniplan designed a digital event platform called "SPACE." It went live several months before the start of the trade show and provided information about planned activities at the booth and the company's major highlight topics:

• Crafting Circular Economy
• Crafting Electrification
• Crafting Sustainable Living
• Crafting Smart Designs

A stage for current trends

These Topic Clusters also formed the basis for the second pillar – the integrated STAGE booth concept. As the other Covestro project manager Dr. Christopher Stillings explains, "Not only the exhibits and topic clusters, but also the wide-ranging lecture program in the central Talks Arena were tailored to these topics. Inspiring guests from well-known companies and universities – all actors in their respective fields – captivated the audience with keynotes on current trends and technologies and during panel discussions. Not only booth visitors participated, but also viewers around the world who followed the live broadcasts via social media."

Another highlight is the Color Material Finish (CMF) Sample Library, a collection of plastic samples that makes materials visible and tangible. Part of Uniplan´s and Covestro's STAGE concept is that the booth – or parts of it – can be used repeatedly for further exhibitions. Sustainability aspects and the reduction of CO₂ emissions were also at the forefront in the selection of materials for the trade show appearance itself. The success proves both partners right: Thus, the quality of contacts was significantly improved compared to K 2019, and a positive response developed both externally and internally over a longer period of time.

Innovators in the spotlight

While innovative developments are showcased and (hopefully) get the attention they deserve, the researchers behind them are often not visible. In the video series "Meet The Innovators" Covestro gives a voice to some of them and their inventions – see the blog post. They were introduced to a larger audience at K 2022, but prominent guests continue to discuss important innovations and technologies in the "Meet The Innovators" livestream series.

Many inspiring encounters at K 2022 have already led to a large number of new partnerships, technologies and material solutions. They form a valuable basis for developments that Covestro plans to showcase at the next major trade show appearance at K 2025. The company's motto may be different then – but the message remains that partnerships are the key to achieving a climate-neutral and circular economy: "Crafting Connections With You".

A Red Dot Award rarely comes alone

Back in May 2023, Covestro and its partner Accesso Dynamics were honored with an award offered by Red Dot and Koelnmesse. At the furniture supplier trade show interzum 2023, they received the "Best of the Best" interzum Award for their Arfinio^® technology. This technology, first presented at K 2022, enables products with complex but seamless shapes. The development also contributes to sustainability, as the products are partly made from bio-based raw materials, are repairable and can be mechanically recycled at the end of their useful life.

Covestro and Uniplan were also nominated for the Heavent Award in the "Forum, Summit, Congress, Fair Award" category for their communication concept for K 2022. A total of 132 projects from event, experimental and live marketing agencies as well as companies and trade fair and congress organizers were submitted for this year's event competition.

"I am amazed by the increased efficiency and energy savings you achieve with each new car model," said Chief Technology Officer Dr. Thorsten Dreier in welcoming the guests. “The Covestro Adelie shows on a small scale what high-performance plastics can do for a sustainable future on a large scale. We are convinced that they are the key to sustainable mobility. That's why we are consistently driving forward material innovations and recycling solutions together with our partners in industry and science.”

Optimization through teamwork

Even during the two-year development period of the Covestro Adelie, the teamwork of around 50 students led to success: aerodynamics, electrical engineering, driving strategy, chassis, powertrain and structure interlock perfectly. More than 200,000 hours of calculations were required to optimize the exterior shape, plus 10,000 workshop hours for the body, and many more days for electrical and mechanical components and the development of the driving strategy.

"A lot of work, heart and soul and the concentrated experience from our three predecessor models have gone into the Covestro Adelie," confesses Clemens Odendahl, head of marketing at Team Sonnenwagen. "Now we hope to win the Challenger class, in which we are the only German team competing. There, it's all about performance and maximum energy efficiency."

Thanks to the optimizations, the structure of the new model weighs 16 percent less than that of its predecessor, the Photon, and the chassis even has 20 percent less weight. This improvement is also due to some Covestro materials, such as a battery cover made of the high-performance plastic polycarbonate and the construction of the seat shell with thermoplastic polyurethane. The Photon is also currently on campus and will remain there for some time.

More sustainable outfit

But the Aachen-based tinkerers are not only committed to more sustainability on the road – their official outfit was also produced using alternative raw materials with fewer petrochemical components. Both the shoes and the shorts were provided by Covestro's Chinese partner Huafeng. The two companies jointly developed a design for them using Huafeng's HAPTIC^® textile coating system, which is made with Covestro's partially bio-based Impranil^® CQ DLS/1 polyurethane dispersion.

Covestro wishes Team Sonnenwagen every success and victory in the Bridgestone World Solar Challenge. This time, 42 teams from 23 countries are taking part in what is probably the toughest solar car race in the world. Under harsh climatic conditions, they have to master the more than 3,000-kilometer route from Darwin to Adelaide as quickly as possible, right across the Australian outback.

"For me, the chemical industry is predestined for the use of AI because we have a lot of complex processes going on that cannot be described by fixed rules," says Walter Grüner, Head of IT & Digitalization at Covestro. "They are not suitable for automation. We rather need learning systems to which we grant a certain degree of decision-making autonomy. In doing so, we focus primarily on the development of systems that work in a complementary manner to humans and support their abilities."

With the introduction of AI in the chemical industry, questions about technical, operational and organizational implementation are also increasingly emerging. This includes, for example, the role of AI in decision-making, but also its implementation along value chains.

Artificial Intelligence – great opportunity for chemical industry

Under the motto "Shaping industrial change with AI", the participants exchanged in a generic way views on the following topics:

• AI system to assist decision making or as an autonomous decision-maker?
• AI awareness, literacy and capabilities
• Production technology vs. supply chain management: independent or joint optimization?
• Needs and requirements for external data generation (monitoring)?

"It is precisely the exchange across company boundaries that helps us a lot in the upcoming transformation because overall challenges become clearer," says Nils Janus, Global Head of Advanced Analytics at Covestro. "This increases efficiency and saves time."

Overall, there was agreement among the participants: Artificial intelligence offers great opportunities for the chemical industry. The new systems help to create a common ecosystem for cross-divisional production planning. It must be decided on a case-by-case basis and each company has to decide individually and independently how much autonomy these systems will be given. With regard to access to the systems, the participants saw a strong democratization of artificial intelligence. Companies could support employees in learning more about data and AI and bring them into contact with experts when it comes to the widespread use of AI solutions in the company. The generation and dissemination of ESG (Environmental, Social and Governance) data are currently the biggest drivers for using external data sources. Here, all participants saw opportunities to intensify the use of external sources.

Digitalization drives sustainability

Digitalization is a key driver to improve sustainability and make the circular economy a reality. Covestro is focusing on more data-oriented corporate governance to drive digital transformation.

Covestro is advancing the use of artificial intelligence (AI) both in its own company and in the chemical industry. To this end, the materials manufacturer is investigating how digital technologies can make processes more efficient and sustainable as part of several pilot projects across different divisions.

"With this we have fully achieved the goal of developing a technology to chemically recycle these products and convert polyurethane into a high-quality recycled material," says Bart Haelterman, R&D Director at Recticel. "For the first time in history polyurethane is truly fitting into a circular economy." The European Union funded the PUReSmart project with six million euros over a four-year period under its Horizon 2020 research and innovation program (agreement No. 814543).

Building on the PUReSmart project, Covestro is working with partners from the waste management industry to drive the further development of flexible foam recycling through to industrial use. "Our goal is to turn waste into valuable raw materials and to anchor the principle of the circular economy in our company and along the value chain with our partners to achieve this," says Christine Mendoza-Frohn, Head of Performance Materials Sales EMEA & LATAM of Covestro. ʺThat’s why we make innovative recycling a priority. We call this ongoing Evolution of Recycling: Evocycle^® CQ. The first initiative of this kind is dedicated to the chemolysis of PU mattress foam and is called 'Evocycle^® CQ Mattress'. This underlines our willingness to further invest in this technology," says Mendoza-Frohn.

Raw materials in high yield and purity

Unlike other chemical processes for recycling PU flexible foam, the process does not use fossil-based polyol. It requires only the pre-sorted foam from mattress waste, a glycol and an additive. During chemolysis, the polyol and toluene diamine (TDA), the precursor to TDI, are recovered in high purity and yield. After reprocessing, they can be used again as often as required for the production of new PU flexible foams. This ensures a sustainable circular economy for PU flexible foam with a reduced CO₂ footprint.

The goal: an industrial value cycle

Covestro's first initiative, Evocycle^® CQ Mattress, transforms end-of-life mattress foam directly back into its main building blocks, giving old foam a new life within an optimized circular system. The company aims to close the loop in the PU mattress industry by converting waste into valuable resources, reducing the use of fossil fuels and significantly lowering CO₂ emissions. However, there are still many steps to be taken before this vision becomes reality, especially with regard to upscaling the process.

The journey began for Covestro in 2019, leading to the start of a pilot plant at its Leverkusen site as early as 2021 to verify the positive laboratory results achieved to date. If the trials continue to be successful, the company plans to build a larger recycling plant to validate the technology in an industrial simulation environment.

However, an effective and cost-efficient supply of used PU mattresses is also crucial to building a circular economy. To achieve this, large quantities must be collected, broken down into individual components such as springs, textiles and foam parts, and the foam components pre-sorted according to purity and density. This can only succeed in close cooperation with partners – in this case in the recycling industry. Covestro is already cooperating on this with companies such as Interzero and Ecomaison (formerly Eco-mobilier).

Covestro started working in the field of continuous fiber-reinforced thermoplastic composites in 2015 with the acquisition of TCG Thermoplast Composite GmbH. Following the strategic decision to discontinue the Maezio^® product line after almost eight years, Covestro searched intensively for a buyer for the Markt Bibart site. As this attempt was ultimately not successful, Covestro decided to close the site later this year. Most recently, 48 of the approximately 7,600 employees in Germany were employed there. “We have initiated an extensive sales process, which, unfortunately, was not successful. Our focus on the ground is now on providing the best possible support to all colleagues. To this end, we will be working closely with the local employee representatives to find fair solutions for all those affected and to ensure that the closure process is socially responsible,” emphasizes Site Manager John Bauer.

A focus on core business

Thermoplastic fiber composites are a highly specialized and competitive niche business. Covestro has invested in building up the business since taking over the site in 2015 and has made very good technical progress in production. Nevertheless, the company has not succeed to scale business with sufficient success in the market. There are only a few synergies with the core business of the Engineering Plastics business entity and the vast majority of key account business. In addition, the typical customers for thermoplastic composites only order on the basis of joint, complex and time-consuming technical application development, and then only in very small quantities. This is in marked contrast to the far predominant distribution model and key account business in the Covestro Group.

Covestro is thus sharpening its focus on its core Engineering Plastics business by discontinuing the Maezio^® products. Major customers in the automotive, electronics and healthcare divisions, among others, use these high-quality polycarbonates for further processing in a wide range of products.

Currently, two of its own ships and two additional chartered ships belong to Tailwind Shipping Lines. In addition to the non-food products from and for Lidl, Tailwind offers space on these ships also for interested companies. Covestro uses this now to also become more independent from the busy main routes and shipping companies and to increase the speed and punctuality of its own deliveries.

"Ocean shipments have been severely disrupted since the pandemic began, and the scheduling accuracy of large shipowners has fallen from 70 to 20 percent," says Sucheta Govil, Chief Commercial Officer at Covestro. "To increase our reliability and punctuality, we are therefore actively looking for alternatives. With Tailwind, we have found a partner to navigate the direct route from Asia to Europe with its ships - and who is therefore exactly where it helps us."

Smaller vessels, more flexibility and punctuality

The Tailwind ships have a capacity of around 5,000 "Twenty Foot Equivalent Units", or TEU, per month. TEU is a standard measure for shipping containers. Large ships from the big shipping companies can hold three to five times more. However, those mega ships can also only discharge at large ports and travel rather fixed routes with pre-determined stops, which increases the susceptibility to delays.

"We now determine the route ourselves. And because our ships are smaller, we can also have them sail to and discharge at smaller ports. This gives us a great advantage in terms of flexibility, speed and thus also punctuality," says Wolf Tiedemann, CEO of Sales, Logistics and Central Divisions of Lidl Stiftung & Co. KG. "This allows us to import our own goods reliably from Asia - but at the same time we still have room that we can offer. We are pleased to have found a first interested customer and partner with Covestro and hope to be able to expand the cooperation further and find other interested parties."

A first container of Covestro materials successfully completed the route from the company's largest production site near Shanghai to Europe. Currently Covestro ships a good 8,000 containers a year on that route alone. How many of these will be transported by Tailwind in the future is currently being negotiated.

"All our solutions under the umbrella CQ prove that we are continuing to work on making our vision of the circular economy a reality, to help customers and partners achieve their sustainability and climate goals. In this way, we also aim to meet consumer demands for more sustainable products," says Sucheta Govil, Chief Commercial Officer of Covestro. "And this is just the beginning. In the long term, Covestro also wants to offer every one of its products in a climate-neutral¹ version."

Evocycle^® CQ: a new name for all innovative recycling technologies and cycle designs of Covestro

Plastic waste is a valuable raw material and should not simply be disposed of. Therefore, Covestro is taking pride in proving that the path to circularity is possible for all stakeholders – and makes innovative recycling a priority. For the continuous evolution of recycling, the company now introduces the name "Evocycle^® CQ". It is an extension to the CQ label and stands for recycling technologies which enable the use of recycled plastics and recycled raw materials from the Covestro portfolio within a streamlined closed-loop system.

What’s more, the company is not active here alone, rather collaborating with partners from all fields of recycling and reuse to unlock its potential across the entire value chain. That’s how it transforms the industry turning waste into valuable resources, reducing the use of fossil fuels and significantly reducing CO₂ emissions.

The first initiative is called Evocycle^® CQ Mattress: Covestro, together with partners, has developed an innovative technology for the chemolysis of polyurethane flexible foams from used mattresses, in which both main components – the polyol and the precursor to the isocyanate TDI – can be recovered. With this, end of life mattress foams are directly transformed back into renewed polyurethane building blocks.

Since last year the company is operating a pilot plant at its Leverkusen site confirming the positive lab test results. And the journey continues: Covestro is working with recycling specialists such as Interzero and Eco-mobilier², as well as other partners along the value chain, to ultimately close the material cycle for polyurethane mattresses completely and on an industrial scale.

From mass-balanced raw materials to green hydrogen

Raw materials produced from biomass and, in particular, from biowaste and residual materials are also becoming increasingly important. Covestro relies primarily on the latter raw materials because they are available in large quantities and can be used to manufacture a wide range of plastics. Through mass balancing, they are offered in the same good quality as their fossil-based counterparts without customers having to change their processing operations. Covestro works with a number of suppliers who offer the raw materials using a mass-balance approach certified to the internationally recognized ISCC PLUS standard. The starting point also includes fossil raw materials, with the biological portions being allocated to the products by a third party audited allocation method.

Covestro is thus converting its production to the use of alternative and, above all, mass-balanced raw materials, in some cases also using renewable energy from wind and solar power. Many of the company's sites are now also ISCC PLUS certified, including Leverkusen, Dormagen, Krefeld-Uerdingen, Antwerp, Filago, Shanghai, Map Ta Phut and Changhua.

Green hydrogen generated with the help of wind or solar energy also plays an important role for the chemical industry – both as an alternative raw material and as a source of clean energy. Covestro, together with partners, is committed to the urgently needed market ramp-up. The company uses hydrogen and its derivatives to produce high-performance plastics.

¹ Climate neutrality is the result of an internal assessment of a partial product life cycle from raw material extraction (cradle) to Covestro's factory gate, also known as cradle-to-gate assessment.
² The company "Eco-mobilier" has changed its name to "ecomaison" at the beginning of October 2022.

“We have set ourselves the goal to become fully circular. To this end, we want to convert our raw material base to 100% renewable sources. We are very pleased to have found a partner in SOL Kohlensäure who will support us in this transformation with a pioneering spirit,” explains Daniel Koch, Head of NRW Plants at Covestro.

“We at SOL Kohlensäure are advancing the shift to more sustainable CO₂ sources. In this way, we are increasing security of supply, becoming independent of fossil raw materials, and reducing our environmental footprint at the same time,” emphasizes Falko Probst, Sales Manager at SOL Kohlensäure.

From waste product to raw material

The CO₂ used is obtained by SOL Kohlensäure from various sources, such as bioethanol and biogas plants. In these plants, CO₂ is produced as a by-product during the treatment of various biomasses, such as plant residues.  This is separated by SOL Carbon Dioxide, purified and then made available to Covestro production as a raw material. 

In this way, the supply partnership supports the circular concept and contributes to reducing emissions. 

Covestro’s Lower Rhine sites in Leverkusen, Dormagen and Krefeld-Uerdingen are ISCC PLUS certified and can supply their customers with more sustainable products made from renewable raw materials.

Goal of climate neutrality by 2035

Covestro has set itself the goal of becoming fully circular. This also includes using alternative raw materials. Biomass, CO₂, as well as end-of-life materials and waste replace fossil raw materials such as crude oil or natural gas. Carbon is managed in a circular way. In realizing these ambitions, both companies are relying on long-term supply partnerships.

In addition to biogenic CO₂, Covestro is investigating the use of other technical gases from renewable sources. The materials manufacturer is already offering its customers its first sustainable products, such as climate-neutral¹  MDI. With the expansion of its alternative raw material base, this portfolio is set to grow further in the coming years.

ISCC (“International Sustainability and Carbon Certification”) is an internationally recognized system for the sustainability certification of biomass and bioenergy, among others. The standard applies to all stages of the value chain and is recognized worldwide. ISCC Plus also encompasses other certification options for instance for technical-chemical applications, such as plastics from biomass.

¹ _{Climate neutrality is the result of an internal assessment of a partial product life cycle from raw material extraction (cradle) to the factory gate (Covestro gate), also known as cradle-to-gate assessment. The methodology of our life cycle assessment, which has been critically reviewed by TÜV Rheinland, is based on ISO standards 14040 and 14044. The calculation takes into account biogenic carbon sequestration based on compensation measures.}

"The development of these resins is very important to us. After all, it contributes to the expansion of alternative energies and strengthens our strategic orientation to sustainably reduce the CO₂ footprint and take even more steps towards climate neutrality," explains Klaus Franken, Head of Application Development Wind and Pultrusion at Covestro. "To be competitive, the wind industry faces the constant challenge of reducing the Levelized Cost of Electricity. We can help here by enabling our customers to produce rotor blades faster and thus more cost-effectively. At the same time, higher energy yield through optimized blade properties and longer service life also play a role."

Close cooperation with customers

One goal of the Wind Technology Center is to develop robust materials that combine the properties important for rotor blades, such as strength, stiffness and temperature resistance. Existing products are continuously optimized and completely new formulations are developed and tested. Another goal: application technology development in close cooperation with customers. Klaus Franken explains: "Here we can simulate our customers' manufacturing processes and show how our PUR resins help them to realize both their rotor blade designs and the manufacturing process in the best possible way."

Covestro attaches great importance to optimally tailoring its products to the needs of its customers. That is why a number of cooperative ventures with European and Asian wind turbine manufacturers are already in place. The focus here is on constructing and testing prototypes.

The high-tech center is located in Leverkusen and was completed and put into operation at the beginning of this year. It comprises two interconnected units: a laboratory area for chemical development and an Upscaling Plant. The latter is home to processing technology and application development.

Development and application go hand in hand

The center offers clear advantages: "Chemical development and application technology can work hand in hand here. On top of that, the physical proximity makes it easier to exchange information directly and quickly. We use identical resources and the same infrastructure and quickly obtain a comprehensive depiction of the process. This helps us to pursue our goals in a results-oriented manner and without losing knowledge, and enables us to offer new, innovative solutions to our customers," explains Technical Center Manager Frank Grimberg. "Process and plant safety, explosion protection, machine safety and, of course, occupational safety are always in the spotlight here," explains Tobias Wollersheim, who as Project Management was responsible for planning and implementing the investment.

Another positive aspect: with the innovative technology center, Covestro is increasing its attractiveness as an employer. Indeed, wind technology offers a wide range of new, interesting fields of work that arouse curiosity and offer diversity. Covestro has taken on a newly qualified chemical technician from its own training program to operate the machines. He is being intensively trained in the processes and machine technology.

This much is clear: Things are moving in the area of wind energy.

Quotes

"I am very pleased that we can now offer our customers even more certified mass-balanced products and thus help them even better to achieve their sustainability goals and drive the transition to a circular economy," says Sucheta Govil, Chief Commercial Officer of Covestro. "In doing so, we are also supporting the use of alternative raw materials and reducing CO₂ emissions along the value chains."

Dr. Klaus Schäfer, Chief Technology Officer at Covestro, adds, "The raw materials we use for these products meet the high sustainability requirements of the ISCC Plus standard all the way back through the supply chain. That's why we want to make greater use of alternative raw materials such as these renewably attributed precursors in our production. In addition to the three German sites, also our plants in Antwerp and Shanghai are already ISCC Plus certified, with more sites to follow."

In the mass balance approach, bio-based or recycled raw materials – in this case reprocessed residual materials – are fed in at an early stage of raw material extraction and mathematically attributed to the finished products. This saves fossil raw materials and reduces greenhouse gas emissions, while the quality of the mass-balanced products remains the same compared to purely fossil-based ones. Manufacturers can continue to use their proven formulations, equipment and processes.

ISCC ("International Sustainability and Carbon Certification") is an internationally recognized system for sustainability certification of biomass and bioenergy, among others. The standard covers all stages of the value chain and is widely used worldwide. ISCC Plus includes further certification options for technical-chemical applications, among others, including plastics from biomass.

The new committee has a lot of plans for the next term of office. In particular, it wants to breathe even more life into the three guiding principles of the society with a focus on digitization, diversity and internationalization, and thus also continue the course it has taken in recent years to drive forward the modernization of the GDCh. "We can be truly proud of what the GDCh has achieved and what it represents, but we also want to support the changes in society and science and thus play an active role in shaping the future of the GDCh," Danielmeier emphasizes.

Karsten Danielmeier, born in Werl in 1967, studied at the University of Bonn where he received his doctorate in synthetic organic chemistry under Professor Dr. Eberhard Steckhan in 1995. The following year, he joined Bayer AG where he was active in numerous positions of increasing responsibility in raw materials research for coatings and adhesives in Germany and the United States. Most recently, he headed research for the Functional Films division in Leverkusen and was Senior Vice President for Research and Development in the Coatings, Adhesives, Specialties segment at Covestro from 2015 to 2021.

Danielmeier has been a member of the GDCh board since July 2020 and had previously served for several years on the scientific planning committee of the Coatings Chemistry division.

"I am fascinated by the creativity and entrepreneurial spirit with which the students are developing and optimizing new ideas for solar cars," says Sucheta Govil, Chief Commercial Officer of Covestro. "That’s why we’re sponsoring this project: with our commitment to sustainable future mobility and building a Circular Economy, we want to encourage young people from top universities to use their talents to work with us to develop advanced materials and technologies."

"After two years of hard work, we finally reveal our new Sonnenwagen," says Simon Quinker, vice chairman of Team Sonnenwagen Aachen. "By using innovative technologies, the Covestro Photon is the most efficient Sonnenwagen. We are looking forward to the cooperation with Covestro and together we are taking a further step towards sustainable mobility."

Becoming fully circular

Global challenges such as climate change and increasing resource consumption require new concepts for future mobility. Covestro has been developing material solutions for electromobility for some time, but is also focusing on the increased use of renewable energies such as solar and wind power. Together with the use of alternative raw materials and the development of innovative recycling concepts, it is part of a comprehensive program with which Covestro is fully gearing itself to the Circular Economy. To achieve this, the company cooperates with many partners along the value chain as well as with universities and institutes.

In the solar cars of the Sonnenwagen team, Covestro is testing innovative and sustainable materials under the extreme climatic conditions that typically prevail on such race tracks: very high UV radiation, high temperatures and mechanical vibrations while driving. The company thereby underscores that its innovative and sustainable materials can be used in cutting-edge technologies, for example for cars. In addition to partially biobased raw materials, the company also plans to launch recycled plastics in the next vehicle.

Press Releases:

• Closing the loop for polyurethane mattresses
• Covestro and REnato lab launch Circular Design Guidebook for EEA industry

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On average, mattresses contain 15 to 20 kilograms of foam, which results in a large amount of waste at the end of their useful life. The foam is primarily made of two important raw materials. While other chemical recycling approaches mainly focus on processing one of them, the Covestro process now enables the recovery of both raw materials.

Covestro has also recently started operating a pilot plant for flexible foam recycling at its Leverkusen site to confirm the positive laboratory results achieved to date. The first phase is to focus on recycling one of the raw materials, before the recovery of the second component is also to be piloted from summer this year. Covestro´s goal here is to industrialize chemical recycling processes for used flexible foams and ultimately to remarket both recovered raw materials.

Closing material loops

"The development of this innovative recycling technology and the investment in the pilot plant are further milestones in realizing our vision of fully aligning Covestro to the circular economy," says CEO Dr. Markus Steilemann. "In doing so, we want to replace fossil resources in production, steadily further reduce the carbon footprint of our materials and create new solutions for dealing with plastic waste. Chemical recycling is particularly promising for this, and must be developed further and used more intensively overall. Above all, it should finally be put on an equal legal basis with other recycling methods."

In cooperation with the companies Recticel and Redwave – a division of Wolfgang Binder GmbH – and as part of the PUReSmart research project, Covestro has also developed an intelligent sorting solution for separating the different PU foams from post-consumer mattresses. The software uses algorithms to correctly identify the different foam types, which facilitates an effective recycling process. This development is another element of Covestro’s digitalization strategy, combined with the new opportunities it entails for the chemicals and plastics industry.

Co-creation of a circular ecosystem

"Based on our competencies and experiences, we also want to take part in shaping the emerging value creation cycle," says Daniel Meyer, Global Head of the Polyurethanes segment at Covestro. "To accomplish this, we rely on international cooperation with partners and also develop innovative business models. The aim is to generate new sustainable business opportunities with our customers, other partners and for ourselves."

The project is an important step forward in taking the development of the circular economy at Covestro to entirely new heights. The increased use of used materials further contributes to solving the societal challenge of sustainable disposal of such waste and to achieving the European Union´s goals for the circular economy and for climate and environmental protection.

“Especially in buildings with high foot traffic, it’s important to have an abrasion-resistant and durable flooring so that it still looks appealing after several years,” explains Contardo Pafumi, Industrial Marketing Manager Construction at Covestro. “For such applications, polyurethane-based sealers have proven their worth. They are very robust and also easy to clean.”

More environmentally compliant coating

For these and other reasons, Covestro chose the elastic terrazzo system from the Swiss installation company TEXOLIT AG. It is also particularly low in emissions and complies with AgBB regulations for indoor air emissions. It is also suitable for environmental certification under the LEED Gold Standard (Leadership in Energy & Environmental Design).

In total, an area of 1,800 square meters was equipped with the terrazzo floor. The coating comes from coatings manufacturer KLB Kötztal Lacke + Beschichtungen GmbH and is based on an aqueous polyacrylate dispersion from Covestro´s Bayhydrol® range and a polyisocyanate crosslinker from the Bayhydur® series.