METHOD FOR PREPARING A LIQUID DIPHENYL METHANE DIISOCYANATE PRODUCT AND FOR PREPARING OR MANUFACTURING A POLYURETHANE USING SUCH ISOCYANATE PRODUCT

摘要

A diphenylmethane diisocyanate composition which comprises diphenylmethane diisocyanate in which from 10 to 35 percent of the isocyanate groups have been reacted with a mixture of alkylene glycols containing at least three carbon atoms. The composition is made by heating together the reactants.