Lupranate® Monomeric MDI Product Line


Monomeric MDI (MMDI) refers to the 4,4’- and 2,4’-isomers of diphenylmethane diisocyanate. Pure 4,4’-MDI is a crystalline solid at room temperature. BASF sells frozen drums of 4,4’-MDI as Lupranate M and MS isocyanates. Above 45°C, pure 4,4’-MDI can be shipped and kept as a liquid for up to fifteen days. By blending 50% 2,4’-MDI into the 4,4’-MDI, the resulting mixture is a liquid at room temperature. Several variations in isomer distribution and stabilizer package are available in the MMDI product line.




Pure MDI and Pure MDI Derivatives

Appearance % NCO Acid No. Nominal Funct. Viscosity cps @ 77°F Storage Temp. (°F) Attributes and Applications MSDS
Lupranate M
4,4' MDI
Solid 33.5   2.0 solid /  liquid <32 or 113 Prepolymers, TPU, all PU Elastomers, Oligomer Development MSDS
Lupranate MS
4,4' MDI
Solid 33.5   2.0 solid / liquid <32 or 113 Same as LUPRANATE M w/ extra color protection MSDS
Lupranate MI
2,4' and 4,4' MDI Blend
Liquid 33.5   2.0 15 73-86 Prepolymers, Adhesives, all CASE Applications MSDS
Lupranate LP30
Liquid Pure 4,4' MDI
Light yellow liquid 33.1   2.0 15 86-95 Better handling and shelf-life in most pure 4,4'-MDI applications MSDS
Lupranate 227
Monomeric/Modified MDI Blend
Light yellow liquid 32.1   2.0 15 68-95 %NCO near pure 4,4' MDI with good stability, most CASE applicn's MSDS


Markets and Applications

House and Home
Oil and Gas


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Lupranate® Monomeric MDI Product Line Downloads


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