| 摘要 |
The invention relates to amphiphilic polymer compounds that are produced in such a manner that: a) a di-, tri- or tetraglycidyl compound (A) is reacted with an optionally unsaturated reactive constituent (B), comprised of a C8-C 28 fatty acid, a C8-C28 alcohol or of a C8-C28 secondary amine, afterwards; b) the reaction product from step a) is permitted to react with an aliphatic or aromatic polyisocyanate compound (C), and finally; c) the reaction product from step b) is reacted with a polyalkene oxide compound (D) of general formula (I), in which R1 = H, a linear or branched and optionally unsaturate d aliphatic hydrocarbon radical with 1 to 12 C atoms, R2 = a linear or branche d and optionally unsaturated aliphatic hydrocarbon radical with 1 to 30 C atom s or represents phenyl, m = 0 to 250, n = 3 to 350, and x = 1 to 12, and the ethylene oxide, i.e. higher alkene oxide units, can be distributed in any manner in the polyalkene oxide compound (D). The inventive polymer compounds are excellently suited for use as agents for preventing or suppressing bloomings on surfaces of hardened, hydraulically settable building material compounds and/or for imparting water repellency to the corresponding hydraulically settable systems. In addition, the corresponding products abso rb distinctly less water due to the inventive additive whereby enabling a distinct reduction in frost damages and in a rapid rusting of reinforcing steel.
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