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Covestro and GeBioM expand their cooperation for orthopedic footwear

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Materials manufacturer Covestro and orthopedic service provider GeBioM, based in Münster, Germany, are expanding their cooperation in the field of orthopedic footwear. In addition to producing lasts and trial shoes, they now support orthopedic shoemakers in the production of custom insoles using 3D printing. A new Addigy FPU 79A thermoplastic polyurethane (TPU) from Covestro is used in the form of filaments. Together with Danish printer partner Create it REAL, the companies offer a novel and sustainable solution for the digital production of shoe insoles.

Covestro and GeBioM expand their cooperation for orthopedic footwear

“Our new TPU plastic and a printer developed specifically for this application make it possible to print very soft structures. The material and printer were harmonized during development to achieve a perfect result”, explained Lukas Breuers, 3D printing expert at Covestro. “With the help of the automated software solution, soft and hard structures can be combined in a shoe insole, achieving a level of customization that was previously virtually impossible”. The TPU also meets the requirements for medical devices with regard to cytotoxicity and skin sensitization in accordance with the DIN EN ISO 10993-5 and 10993-10 standards.

Covestro is currently working on a recyclable TPU for this application and is developing opportunities with GeBioM and value chain partners to recover used insoles for recycling. Already, the spools on which the filament is wound are reused and the development is part of a global strategic program to fully align the company with the circular economy. The components of the program include innovative recycling technologies and the increased use of alternative raw materials such as biomass, CO2, and plastic waste, as well as renewable energy.

So in addition to functionality, the development of the material also focused on its ecological footprint, as underlined by Marcel Domenghino, Managing Director of GeBioM, pointed out: “It was important to us that the new solution also allows for improved sustainability. Currently, the production of insoles also generates large amounts of waste, moreover, the insoles themselves are hazardous waste after use. With 3D printing, we now enable our customers to produce in a waste-free manner by using only the material that is needed for the insoles”.

Covestro has been committed to developing innovative material solutions for additive manufacturing products for years and offers a product range under the Addigy brand, including orthopedic shoe insoles. Just recently, the company also significantly strengthened its 3D printing portfolio with the acquisition of the Resins & Functional Materials business of the Dutch DSM Group.

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Andrea Gambini

Andrea has always loved reading and writing. He started working in an editorial office as a sports journalist in 2008, then the passion for journalism and for the world of communication in general, allowed him to greatly expand his interests, leading to several years of collaborations with several popular online newspapers. Andrea then approached 3D printing, impressed by the great potential of this new technology, which day after the day pushed him to learn more and more about what he considers a real revolution that will soon be felt in many fields of our daily life.

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