MULTILAYER COATING, PRODUCTION AND USE THEREOF FOR THE ADHESION OF GLASS PANES

摘要

Multilayer coating comprising (A) a multilayer varnish, comprising (A1) at least one base coating made of a base coat containing at least one resin and (A2) at least one clear varnish as the top layer of the multilayer varnish, and (B) an adhesive layer made of a moisture-curing, isocyanate-based adhesive directly on the top clear varnish of the multilayer varnish, wherein (i) all aminoplast resins contained in the base coat are fully methylolized, fully etherified melamine resins, wherein at least 90% of the etherified methylol groups are etherified with butanol, and (ii) the base coat comprises at least 1.0 wt. % relative to the total weight of the base coat, at least one polyester binder with a hydroxyl number of at least 240 mg KOH/g and an acid number of at most 10 mg KOH/g, as well as a corresponding base coat and a method of production and use of the multilayer coating for the adhesion of glass panes.