Aqueous coating powder dispersion, method for the production and use of said dispersion
AssigneeBASF Coatings GmbH
InventorsEkkehard Sapper, Joachim Woltering
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Abstract
The present invention relates to an aqueous powder coating dispersion which can be prepared by processing the binder of the powder coating material and/or the crosslinker of the powder coating material or the entire powder coating material to give a powder by spray drying and then preparing an aqueous powder coating dispersion using the spray-dried powder. The present invention additionally relates to a process for preparing the aqueous powder coating dispersion and to the use of the powder coating dispersion, especially for the coating of automobile bodies.
Claims18
An aqueous powder coating dispersion prepared by a process comprising spray drying components selected from the group consisting of the binder of the powder coating material, the crosslinker of the powder coating material, and the entire powder coating material containing the binder and the crosslinker to give a powder and then preparing an aqueous powder coating dispersion using the spray-dried powder, wherein the binder of the powder coating material comprises at least one group in an amount sufficient to provide dispersibility in water.
Dependencies are inferred from the claim text.