Basf Coatings Gmbh

Dirk Riediger

Jan-Bernd Kues

Jens-Henning Noatschk

Eva-Kathrin Schillinger

Alberto Garcia Martin

The present invention relates to an aqueous two-component basecoat material (b) comprising (b.1) a base component comprising (1) at least one polyurethane resin having a hydroxyl number of 15 to 100 mg KOH/g and an acid number of 10 to 50 mg KOH/g, (2) at least one aqueous dispersion comprising water and a polyurethane resin fraction consisting of at least one polyurethane resin, the polyurethane resin fraction having a gel fraction of at least 50%, having its glass transition at a temperature of less than &#x2212;20&#xb0; C. and having its melting transition at a temperature of less than 100&#xb0; C., (3) at least one color and/or effect pigment, at least one pigment (3) being used in the form of at least one pigment paste comprising at least one polyurethane resin (1) as pasting resin, and (b.2) a curing component comprising (4) at least one hydrophilically modified polyisocyanate (4) having an isocyanate content of 8% to 18%.

Aqueous basecoat material for producing a coating

A method for producing a multicoat coating (M) on a substrate (S) that includes:(!) producing a basecoat (B) on the substrate by applying an aqueous basecoat material (b) to the substrate (S), the basecoat material being a two-component coating composition, and (II) producing a clearcoat (K) directly on the basecoat (B) by applying an aqueous clearcoat material (k) directly to the basecoat (B), the clearcoat material being a two-component coating composition.

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Drensteinfurt, Germany

Dirk Riediger