COVESTRO: Polyether Polyols Based on Bio-Circular Raw Materials
Covestro now offers polyether polyols using bio-circular feedstock. Together with renewable toluene diisocyanate (TDI) and climate-neutral methylene diphenyl diisocyanate (MDI), the company can supply both key raw material components for the production of polyurethane (PU) foams based on alternative raw materials. Like TDI and MDI, the polyols are produced with the help of the mass balance approach using renewable precursors–from bio-waste and residual materials–which are allocated to the products by calculation.
With these polyols, Covestro is now able to offer selective prepolymers for various adhesive applications. The introduced mass balance approach enables the gradual substitution of fossil-based raw materials by bio-circular alternatives, which further improves the sustainability in these applications. Covestro produces the polyether polyols in Dormagen, Germany, using the mass-balanced precursor propylene oxide from the shared site with LyondellBasell in Maasvlakte, The Netherlands. There, the two partners produce propylene oxide and styrene monomer as part of a joint venture. Both of the above-mentioned sites are certified according to the internationally recognized ISCC PLUS standard.