Moisture-curing coating compositions based on aprotic solvents, comprising binders having alkoxysilane groups, and the use thereof

The invention relates to moisture-curing coating compositions based on aprotic solvents, comprising (A) at least one binder having alkoxysilane groups and (B) at least one crosslinking catalyst, characterized in that it comprises, as the binder (A), at least one polyacrylate and/or polymethacrylate obtainable using one or more ethylenically unsaturated monomers (a1) of the formula (l) where R = hydrogen or a methyl radical, R' = hydrogen, alkyl or cycloalkyl, R" = alkyl, cycloalkyl, aryl or aralkyl, where the carbon chain may be interrupted by nonadjacent oxygen, sulfur or NRa groups, where Ra = alkyl, cycloalkyl, aryl or aralkyl, x = 0 to 2, and, as a crosslinking catalyst, at least one phosphorus- and nitrogen-containing catalyst (B). The present invention also provides a process for producing a multilayer paint system using this coating composition, more particularly for producing a refinishing system, and also the use of this process for coating automobile interior or exterior components or components for shipbuilding and aircraft construction, or components for domestic and electrical appliances, or polymer moldings or films.