[EN] COATING COMPOSITION CURABLE BY ACETO-MICHAEL ADDITION<br/>[FR] COMPOSITION DE REVÊTEMENT DURCISSABLE PAR ADDITION DE MICHAEL DE GROUPE ACÉTO
申请人:BASF COATINGS GMBH
公开号:WO2021037792A1
公开(公告)日:2021-03-04
The present invention relates to a curable coating composition comprising at least one Michael donor (A) having at least one acetoacetate group, at least one Michael acceptor (B) and at least one specific catalyst (C), its use as a clear coating in a method to prepare a multilayer coating and a multilayer coating obtained from said process. Moreover, the present invention relates to a kit-of-parts comprising at least two separate containers C1 and C2, wherein either the specific catalyst (C) and/or the at least one Michael acceptor (B) is contained in container C2. Finally, the present invention relates to the use of specific salts of carboxylic acids as catalyst in a reaction between a Michael donor (A) having at least one acetoacetate group and a Michael acceptor (B).