4,4'-MDI

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Methylene diphenyl 4,4'-diisocyanate (4,4'-MDI), also known as Pure MDI, is the isocyanate used as the monomer feedstock for polyurethane production. It is a large commodity chemical compound,

Related Topics:
Isocyanate - Monomer - Feedstock - Polyurethane - Commodity - Chemical compound

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Other MDI isomers include 2,2'-MDI and 2,4'-MDI, but these have no commodity size. Mixtures of all MDI monomers (often mainly 4,4'-MDI with minor amounts of 2,4-MDI) are known as Polymeric MDI.

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