Toluene diisocyanate, has six isomers, toluene-2,3-diisocyanate, toluene-2,4-diisocyanate, toluene-2,5-diisocyanate, toluene-2,6-diisocyanate, toluene-3,4-diisocyanate, and toluene-3,5-diisocyanate. Of these, toluene-2,4-diisocyanate and toluene-2,6-diisocyanate are the two most common isomers. Industrial toluene diisocyanate is usually a mixture of toluene-2,4-diisocyanate and toluene-2,6-diisocyanate.

Toluene diisocyanate (TDI) has six isomers: 2,3-TDI, 2,,4-TDI, 2,5-TDI, 2,6-TDI, 3,4-TDI, 3,5-TDI. 2,4-TDI and 2,6-TDI are the most common, and the industrial product is usually a mixture of 2,4-TDI and 2,6-TDI.

Basic information

TDI,2,4-TDI,BASF LUPRANATE T80,Tolyelenediisocyanate,2,4-DIISOCYANATOTOLUENE,2,4-TOLUENEDIISOCYANATE,Toluene-2,4-diisocyanate,2,4-Toluylene Diisocyana,CRESORCINOL DIISOCYANATE,Toluene 2,4-diisocyanate,Tolylene-2,4-diisocyanate,2,4-Tolylene diisocyanate,1,3-Diisocyanato-4-Methylbenzene,4-Methyl-m-phenylene diisocyanate,Tolylene 2,4-Diisocyanate(monomer),4-METHYL-1,3-PHENYLENE DIISOCYANATE,1-METHYL-1,3-PHENYLENE DIISOCYANATE,4-Methyl-m-phenylene DiisocyanateToluene-2,4-diisocyanate4-Methyl-1,3-phenylene Diisocyanate2,4-Diisocyanatotoluene

Main Applications

Application 1: Mainly used in polyurethane products, including foamed plastics, polyurethane coatings, polyurethane rubber; polyimide fibers and adhesives also have some applications.

Application 2: Used in synthetic fibers, foamed plastics and rubber, also used as adhesives.

Production method

Toluene is nitrated to dinitrotoluene and then reduced to get toluene diamine. Toluene diamine reacts with phosgene to form TDI (mainly 2,4-isomer).