Covestro has incorporated polycarbonate polyols made from carbon dioxide into its Desmopan thermoplastic polyurethane product line. The company stated that this is the first time carbon dioxide technology has been used in TPU.

Desmopan 37385A is specifically designed for extrusion, but it can be injection molded. Its physical properties include Shore A 85 hardness, 36 MPa tensile strength and 660% elongation at break.

"The application range covers typical applications of traditional TPU grades with comparable hardness. It ranges from shoe soles and upper components to sportswear, handles and knobs, to packaging of sensitive electronic products," Georg Fuchte said. Covestro described Fuchte as a TPU expert.

He added that the new TPU can “reduce the carbon footprint of the product” and then “play a pioneering role in sustainability”.

At the same time, Covestro is developing a Desmopan CO2 grade with a hardness of Shore A 95 and a fast solidifying melt.

"Our goal is an application where economic production is important in a short period of time," Fruchte added.

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