The most common industrial technology is introducing carbamate or carbodiimide groups into 4,4'- MDI to obtain liquid modified MDI
It can be used in the manufacture of polyurethane elastomer, molded soft polyurethane and foam plastics, including sole, solid tire , automobile bumper, fender, shock absorber, baffle plate, steering wheel, seat headrest, armrest, interior decoration, etc. It is also widely used in the manufacture of adhesives, coatings and fabric coating finishing agents.