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US 2018/0022944 A1Published application
Use of phosphoric esters in aqueous basecoats
AssigneeBASF Coatings GmbH
InventorsBernhard STEINMETZ, Peggy JANKOWSKI, Nadia LUHMANN, Michael MATURA, Michael WOHLFARTH
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Abstract
The invention relates to the use of phosphoric acid and/or of monoesters and/or diesters of phosphoric acid in aqueous basecoat materials for improving adhesion of these coating materials to overbaked clearcoat materials which comprise boron compounds.
Claims7
A method for improving adhesion of a basecoat material to an overbaked clearcoat material, the method comprising:
- including a phosphoric acid, a monoester or diester of a phosphoric acid, or both, in an aqueous basecoat material,
- wherein the overbaked clearcoat material comprises a boron compound.
Dependencies are inferred from the claim text.