Isocyanate
Isocynate is an organic chemical compound that contains an isocyanate group in its molecules. It is used as a key ingredient, together with polyol, for making PU. Materials, such as MDI and TDI, are used in manufacturing polyurethane foam. Polymeric MDI is liquid at normal temperature and its functionality is 2.3–3.0. The product will have unique properties depending on viscosity, responsiveness, and %NCO. Its viscosity is determined by the average molecular weight and the %NCO content.
Polymeric MDI is widely used for making expanded polyurethane foam applicable for making...