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Covestro and the biotech firm Genomatica say they are the first companies to make “significant volumes” of biobased hexamethylenediamine (HMD), a building block chemical used to produce nylon resin and polyurethane coatings. The companies say they have begun testing their developmental process in ton-scale production runs. Covestro has secured an option to license Genomatica’s technology to make bio-HMD at commercial scale. Almost all 2 million metric tons of HMD produced around the world every year are derived from fossil fuel.
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