Abstract: A description is given of water-soluble aminoplast ether copolymers of the following structural type: wherein Z is a glycoluril central unit, B is a radical of an essentially water-insoluble polymer and R1 is a radical of a hydrophilic organic compound. The ratio R1:B is selected within a range of about 1.5 to 4:1 and the overall mass of the water-soluble aminoplast ether copolymer is from about 2000 to 50 000 g/mol such that the copolymer is soluble in water and may be used as a dispersant for e.g. pigments in polar solvents, e.g. water.

Abstract: A description is given of polymers of the general formula in which R1 (identical or different at each occurrence) is hydrogen or a methyl group, X1 and X2=—O—, —S— or —NH— and X1 additionally is a single bond if the first atom in R2 is not a carbon atom, and R2 is one of the radicals indicated below: a) a copolymer radical (Cop) containing at least two structural units —(—O—C2H4)n— (ethylene oxide=EO) and —(—O—C3H6—)n— (propylene oxide=PO) or —(—O—C4H8)n— (butylene oxide=BuO) and —(—O—CH2—)n— (methylene oxide=MeO) in a molar ratio of 5 to 95:95 to 5, in which n (identical or different for each structural unit) is approximately 1 to 1000; b) ?in which Cop is a copolymer radical as defined in (a), and x=1 to 5 and y=1 to 20; c) ?in which R is an alkyl group, r=(identical or different at each occurrence) 1 to 1000 and s=1 to 500; d) ?in which o=10 to 4000 and R3 (identical or different at each occurrence) is hydrogen or alkyl groups having 1 to 5 carbon atoms; e) ?in which p=5 to 2000; o

Abstract: In order to provide a method by means of which the surface of substrates can be protected from corrosive attack and which, in particular, avoids the necessity for oxidative treatment to form oxide layers on surfaces or for phosphatizing or chromatizing treatment steps and is, in addition, simple to apply, it is proposed that the substrate be brought into contact with a solution of a polymer which exhibits UCST properties and which is caused to be deposited onto the surface of the substrate as a layer by decreasing the temperature of the polymer solution.

Abstract: A description is given of water-soluble aminoplast ether copolymers of the following structural type: where Z is an aminoplast unit based on a glycoluril which is unsubstituted or substituted by a reactive OR group (where R is an alkyl, alkylene, alkyl ether or alkyl ester group, preferably a lower alkyl group, e.g.