| abstract |
Composition containing an amphiphile and an active ingredient that is soluble in water at 20 ° C up to a maximum of 10 g / l, characterized in that the amphiphile contains a hyperbranched polycarbonate that is bonded with at least one linear or comb-shaped polymer and / or at least one functional C1-C24 unit containing an acid group, an amino group or at least two hydroxyl groups, in which the linear polymer is a) a statistical homopolymer or copolymer containing a polar, ethylenically unsaturated monomer, b) a block polymer containing a polyethylene glycol block or based on a polar, ethylenically unsaturated monomer oc) a polycondensate or polyaddition product containing polyethylene glycol od) a polyethylene glycol, in which polyethylene glycol d) is linked through a linker with the polycarbonate and wherein the linker is a polyisocyanate with a functionality with respect to the isocyanate groups of at least 1.5 and is selected from di and aliphatic, cycloaliphatic and aromatic polyisocyanates as well as isocyanurates, allophanates, uretdiones and biurets of aliphatic, cycloaliphatic and aromatic diisocyanates, the functional C1-C24 unit being obtained by reaction of the hyperbranched polycarbonate with a cyclic carboxylic acid anhydride; or the functional C1-C24 unit are hydroxycarboxylic acids, aminocarboxylic acids, hydroxysulfonic acids, hydroxysulfates, aminosulfonic acids, aminosulfates, hydroxyamines, polyamines or polyols that are covalently linked by means of the linker with the polycarbonate and in which the polycarbonate contains an alcohol ( B1) which is a trifunctional or higher functional polyol ether based on alcohols having at least three OH groups and C3-C24 alkylene oxide. |