Covestro : Mass-balanced TDI to Sinomax
Covestro

Mass-balanced TDI to Sinomax

Marius Wirtz of Covestro with Sinomax Chairman Frankie Lam (Source: Covestro)
Marius Wirtz of Covestro with Sinomax Chairman Frankie Lam (Source: Covestro)

The first commercial contract for supplying its ISCC Plus certified polyurethane (PU) raw material TDI (toluene diisocyanate) from mass-balanced feedstock has been signed by Covestro with Sinomax. The first batch of the bio-attributed TDI via mass balance is expected to be delivered from Covestro Integrated Site Shanghai/China in the first quarter of 2022, and be applied to medium and high-end product lines from Sinomax Group Ltd., Hong Kong/China, for mattresses, pillows and mattress toppers.  
Both partners signed an agreement to this effect at the Hong Kong office of Covestro on December 15, 2021. Covestro AG, Leverkusen/Germany, and Sinomax also agreed to extend their regional partnership to a global scale, with Sinomax scaling up their operations in the USA.
TDI is a key building block of polyurethane flexible foams, which are widely used in the furniture, automotive, and shoe industries. It can also be used in the production of polyurethane coatings and adhesives. Mass balance is a chain of custody method that allows fossil and alternative feedstock to be mixed in production but separated in bookkeeping. It is able to track materials through the value chains and allows attribution of alternative feedstock, e.g. bio-based raw materials, to selected end products.

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