Method for producing a multicoat paint system

    公开(公告)号:US10196528B2

    公开(公告)日:2019-02-05

    申请号:US15104820

    申请日:2014-12-11

    Abstract: The present invention relates to a method for producing a multicoat paint system on a metallic substrate, in which a basecoat or a plurality of directly successive basecoats are produced directly on a metallic substrate coated with a cured electrocoat, a clearcoat is produced directly on the one basecoat or the uppermost of the plurality of basecoats, and then the one or more basecoats and the clearcoat are jointly cured, and wherein at least one basecoat material used for production of the basecoats comprises the following components: an aqueous dispersion comprising at least one specific copolymer, a specific linear hydroxy-functional reaction product and a polyurethane resin, the preparation of which involves using at least one compound containing at least one carboxylic acid group and at least one group reactive toward isocyanate groups.

    COATING MATERIAL SYSTEM COMPRISING A MERCAPTO GROUP-CONTAINING COMPOUND

    公开(公告)号:US20220306894A1

    公开(公告)日:2022-09-29

    申请号:US17635728

    申请日:2020-08-18

    Abstract: Described herein is a coating material system which includes components (A) to (C) and (K) and also, optionally, further components, where all components (A) to (C) and (K) and also, where present, the further optional components are present separately from one another or are mixed wholly or at least partly with one another.
    Component (A) includes at least one polyhydroxy group-containing compound, where the polyhydroxy group-containing compound of component (A) has an acid number of between 0 and 30 mg KOH/g, and component (B) includes at least one polyisocyanate-containing compound. Component (C) is a catalyst including bismuth (Bi) as metal component and at least one further metal component such as lithium (Li). Component (K) is at least one mercapto group-containing compound. Further components which may be present in the coating material system include, for example, hydroxyl-containing compounds (D), coating additives (F), pigments (H) and/or solvents (J).

    COATING AGENT SYSTEM BASED ON SALTS OF AN ALIPHATIC MONOCARBOXYLIC ACID

    公开(公告)号:US20200181450A1

    公开(公告)日:2020-06-11

    申请号:US16341131

    申请日:2017-09-21

    Abstract: A coating material system including components (A) to (C) and also, optionally, further components, with, in a first option, all components (A) to (C) and also, where present, the further optional components being present separately from one another, in other words the individual components not being mixed with one another. In a second option of the coating material system, conversely, the aforementioned components may also be mixed wholly or at least partly with one another. Where the components are at least partly mixed with one another, for example, component (C) is mixed with component (A), while component (B) is present separately from this mixture of (A) and (C). Optionally, component (B) may also be mixed with a portion of component (C). Furthermore, the mixtures of (A) and (C) and of (B) and (C) may additionally include at least one optional component such as a solvent, for example.

    Method for producing and repairing a multicoat color and/or effect paint system

    公开(公告)号:US10293373B2

    公开(公告)日:2019-05-21

    申请号:US14429164

    申请日:2013-09-20

    Abstract: Described is a method for producing a multicoat color and/or effect paint system. A pigmented aqueous basecoat material is used which comprises at least one phosphite of the formula (I): wherein at least one of the radicals R1 to R3 is selected from the group of aliphatic hydrocarbons. The sum total of the weight percentage fractions of all of the phosphites of structural formula (I) here is 0.1% to 5% by weight, based on the total weight of the basecoat material used. Moreover, described are the corresponding basecoat materials, the corresponding multicoat color and/or effect paint system, and the use of the phosphites in pigmented aqueous coating materials. Also described is a method for repairing defects on multicoat color and/or effect paint systems produced with the aid of the above-identified method of the invention.

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