Lupranat MI Mixture of 2,4'- and 4,4'-diphenylmethane diisocyanate BASF-Elastogran PU - Isocyanates >> MDI, diphenylmethane diisocyanate ADHESIVE Lupranat MI is a mixture of 2,4'- and 4,4'-diphenylmethane diisocyanate (MDI). Lupranat MI is together with other isocyanates used for the manufacture of flexible foams, adhesives. Mixture of 2,4'- and 4,4'-diphenylmethane diisocyanate (MDI). Used for the production of adhesives.