Method For Producing And Repairing A Multicoat Color And/Or Effect Paint System

摘要

Described is a method for producing a multicoat color and/or effect paint system. The method is characterized in that a pigmented aqueous basecoat material is used which comprises at least one phosphine oxide of formula (I):;;wherein the radicals R1 to R3 are selected from the group of aliphatic or aromatic hydrocarbons. The sum total of the weight percentage fractions of all of the phosphine oxides of formula (I) is 0.1% to 5% by weight, based on the total weight of the basecoat material. Also described are the corresponding basecoat materials, a corresponding multicoat color and/or effect paint system, and use of the phosphine oxides in pigmented aqueous coating materials. Further describes is a method for repairing defects on multicoat color and/or effect paint systems produced with the aid of the method of the invention.

主权项

1. A method for producing a multicoat color and/or effect paint system, the method comprising
(1) applying a pigmented aqueous basecoat material to a substrate; (2) forming a polymer film from the coating material applied in stage (1); (3) applying a clearcoat material to the resultant basecoat film; and subsequently (4) curing the basecoat film together with the clearcoat film, wherein in stage (1) the pigmented aqueous basecoat material comprises at least one phosphine oxide of formula (I): wherein the radicals R1 to R3 are selected from the group of aliphatic or aromatic hydrocarbons and, wherein the sum total of the weight percentage fractions of all of the phosphine oxides of structural formula (I) is 0.1% to 5% by weight, based on the total weight of the aqueous basecoat material applied in stage (1).