| 摘要 |
PURPOSE:To obtain polyurethane having excellent dyeability, water absorption, antistatic properties, heat resistance and adhesiveness and having a high sulfonate content, by reacting an isocyanate compound with an active hydrogen compound including a specified compound. CONSTITUTION:A mono(meth)allyl compound of a triol compound of formula I (where Z is formula II or III; X is a direct bond, -CH2-, or formula IV, provided that X is -CH2- when Z is formula II; R is H, CH3 or C2H5; R' is H or CH3) is reacted with a bisulfite of an alkali metal in a molar ratio of 1:1.05-1.20 in water or in an aqueous solution of alcohol at about 80 deg.C to give a compound (a) of formula V (where A is formula IV or VII; M is a cation). An isocyanate compound (e.g. phenyl isocyanate) is reacted with an active hydrogen compound consisting of 0.01-50equimolar% of the ingredient (a) and a high-molecular polyol (e.g. polyether polyol) to give a sulfonate-containing polyurethane having a molecular weight of 10,000 to 1mm and a sulfonate content of 0.1-20wt%.
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