Products of the reaction between isocyanates and hydroxyl compounds for textile finishing

A composition for the oil-, water- and soil-repellent finishing in combination with fluorine-containing polymers, of fiber materials, which is obtained by the following process steps:

• a) reacting a diisocyanate or a mixture of diisocyanates (component I) with one or more alcohols having from 2 to 8 carbon atoms and/or with one or more mono- and/or diethers of such alcohols (component II), these alcohols or ethers thereof having at least two alcoholic hydroxyl groups and no more than two C--O--C bonds, and the reaction being carried out such that the product formed still has free isocyanate groups,
• b) reacting the product obtained in step a) with an organic amine containing two or more alcoholic hydroxyl groups, or a mixture of such amines, the reaction being carried out such that the product formed still has free isocyanate groups, with the proviso that at least one alcohol, one ether or one amine from amongst the alcohols, ethers and amines used in step a) and/or b) contains three or more alcoholic hydroxyl groups,
• c) blocking the free isocyanate groups of the product obtained in step b) by reaction with a blocking agent,
• d) dispersing the product obtained after step c) in water using one or more dispersants and adjusting the pH.