AQUEOUS COATING COMPOSITIONS PIGMENTED WITH FLAKE-FORM METALLIC EFFECT PIGMENTS PROCESSES FOR PREPARING THEM AND USE THEREOF FOR PRODUCING MULTICOAT PAINT FINISH

摘要

The present invention relates to a process for the preparation of a composition comprising A) a binder which is physically curable and / or thermally autocrosslinked and / or thermally externally crosslinked, saturated and / or unsaturated and / or grafted with an olefinically unsaturated compound, One or more inorganic thickeners C1) selected from the group of C) at least one polyurethane selected from the group consisting of a polyurethane, a polyurethane, a nonionic stabilized polyurethane, and / or a nonionic stabilized polyurethane, B) at least one thin plate metallic effect pigment, ) At least one organic thickener C2) selected from the group of acrylic acid- (meth) acrylate copolymer thickener and polyurethane thickener, wherein i) the amount of B) is greater than 15% by weight, based on the total binder content of the coating composition Ii) the total solids content is at least 12.5% by weight, based on the coating composition, iii) the total amount of thickeners C1) and C2) Ting based on the total binder content of the composition, and less than 12% by weight, iv) relates to the aqueous coating composition can have a weight ratio in excess of 0.4, thermally and / or physically cured in C2) for C1). The present invention also relates to a method of making the composition, and the use of a coating composition, a method of producing a multi-coat paint finish, and a multi-coat paint finish.