Most of the prior art polyurethane foam materials use aromatic diisocyanate as a diisocyanate compound, and react it with a polyol to produce a polyurethane foam material in a single step. Commonly used aromatic diisocyanates are, for example, toluene diisocyanate (TDI) or 4,4′-methylenediphenyl diisocyanate (MDI). Due to the poor weatherability of aromatic functional groups and their susceptibility to oxidative cleavage, it is easy to form the suspicious substances, toluene diamine (TDA) or diaminodiphenyl methane (MDA) by after using polyurethane foam materials in a high humidity, high heat environment or ultraviolet light for a period of time. This generated substance contains a luminescent group, a conjugated double bond and causes yellowing of the polyurethane foam material.
TDA (CAS: 95-80-7), which have been listed as highly concerned substances in the EU REACH standard.
And according to the regulations of the Swiss Textile Association OEKO-TEX STANDARD 100 II, it cannot exceed 20PPM.
As a result, our invention, BABYFOAM, provides a method for solving the above problem by replacing aromatic isocyanate with aliphatic isocyanate and preparing a yellowing resistant polyurethane foam material.
We are supplying Butane diisocyanate and I’m looking for a contact person in your company from R&D
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