Sud-chemie Ag

Forschungsinstitut Fur Pigmente Und Lacke E.v.

Mark Entenmann

Thadeus Schauer

Norbert Schall

Helmut Coutelle

Alan Lawrence Steinmetz

Klaus Dziwok

Claus D Eisenbach

Heinz Greisiger

Inge Krämer

Waldemar Ph Oechsner

Sabine Huth

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.

Copolymers containing aminoplast units and use thereof as a dispersing agent or stabilizers

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.

Method of treating the surface of substrates

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Fellbach, Germany

Mark Entenmann