Abstract: Disclosed herein are an aqueous dispersion including cationic polyvinyl alcohol modified polymer particles, an aqueous electrocoating material containing the dispersion and a process to produce an at least partially coated substrate using the aqueous electrocoating material. The aqueous dispersion can be prepared by reacting an intermediate including at least one polyvinyl alcohol polymer chain with a compound including at least one epoxide group and a least two blocked primary amino groups. Aqueous coating compositions including the aqueous dispersion result in improved leveling properties during film formation as well as an improved edge protection of the substrate without negatively influencing the surface roughness and adhesion as well as the deposition properties.

Abstract: Disclosed herein is an aqueous electrocoating material including at least one specific binder and at least one bismuth compound, a method of using the aqueous electrocoating material for at least partially electrocoating a substrate, a coated substrate obtained from said method and an article or component including said substrate.

Abstract: Disclosed herein is an aqueous coating composition containing an aqueous epoxy resin dispersion, an aqueous amine-functional resin dispersion and an aromatic carboxylic acid. The aqueous dispersion contains at least one specific di- and/or polyfunctional monomeric amine and at least one resin component including at least one specific polyfunctional organic amine. Further disclosed herein is a kit-of-parts including a base varnish containing the aqueous epoxy resin dispersion and a curing component containing the aqueous amine-functional resin dispersion as well as the aromatic carboxylic acid. Additionally disclosed herein is a process for producing a coating on the substrate as well as coated substrates resulting from said process. Cured coating layers formed from said compositions exhibit a good adhesion to the substrate as well as a high intercoat adhesion and blistering stability under humidity conditions without negatively influencing the excellent sandability and the good stone chipping properties.

Abstract: Described herein are aqueous electrocoating materials including a silane-containing crosslinking agent, a process to produce an electrocoated substrate, an at least partly coated substrate obtained from said process, as well as a component including said at least partly coated substrate.

Abstract: Described herein is a specific aqueous two-component coating composition including an epoxy resin-based paint base component (1), and a polyamine-based curing component (2), where the paint base component (1) includes at least one aqueous dispersion of at least one pigment (P) and/or filler (F) in at least one epoxy resin (E), where the at least one epoxy resin (E) has (i) a maximum sedimentation rate of not more than 17,500 micrometers per hour and a glass transition temperature of less than 0° C., or (ii) a maximum sedimentation rate of at least 12,500 micrometers per hour and a glass transition temperature of at least 0° C.

Abstract: Described herein is an aqueous resin dispersion (AD) including a resin component (R) including at least one di- and/or polyfunctional monomeric primary and/or secondary amine (M) and polyfunctional polymeric organic amines having primary and/or secondary amino groups. Also described herein is an aqueous two-component coating composition including the resin dispersion.

Abstract: Described herein is an aqueous resin dispersion (AD) including a resin component (R) including at least one di- and/or polyfunctional monomeric primary and/or secondary amine (M) and polyfunctional polymeric organic amines having primary and/or secondary amino groups. Also described herein is an aqueous two-component coating composition including the resin dispersion.

Abstract: Provided herein is a coating composition curable by condensation and/or addition reactions and including (A) at least one polymer as binder, (B) at least one crosslinking agent that can be reacted by condensation and/or addition reaction with component (A), and (C) at least one specific complex as catalyst. Also provided herein is a use of the complex for catalyzing the curing of coating compositions curable by condensation and/or addition reaction.

Abstract: Provided herein is a coating composition curable by condensation and/or addition reactions and including (A) at least one polymer as binder, (B) at least one crosslinking agent that can be reacted by condensation and/or addition reaction with component (A), and (C) at least one specific complex as catalyst. Also provided herein is a use of the complex for catalyzing the curing of coating compositions curable by condensation and/or addition reaction.

Abstract: The present invention relates to aqueous binder dispersions for cationic electrocoat materials, comprising as binders amine-modified, hydroxy-functional epoxy resins and comprising as crosslinker at least one fully blocked polyisocyanate blocked at least partly with 2,2-dimethyl-1,3-dioxolane-4-methanol, and also to the use of such cationic electrocoat materials for producing coating systems and to the use of crosslinkers based on polyisocyanates blocked with 2,2-dimethyl-1,3-dioxolane-4-methanol in aqueous binder dispersions.

Abstract: Provided herein is a coating composition curable by condensation and/or addition reactions and including (A) at least one polymer as binder, (B) at least one crosslinking agent that can be reacted by condensation and/or addition reaction with component (A), and (C) at least one specific complex as catalyst. Also provided herein is a use of the complex for catalyzing the curing of coating compositions curable by condensation and/or addition reaction.

Abstract: The present invention relates to aqueous binder dispersions for cationic electrocoat materials, comprising as binders amine-modified, hydroxy-functional epoxy resins and comprising as crosslinker at least one fully blocked polyisocyanate blocked at least partly with 2,2-dimethyl-1,3-dioxolane-4-methanol, and also to the use of such cationic electrocoat materials for producing coating systems and to the use of crosslinkers based on polyisocyanates blocked with 2,2-dimethyl-1,3-dioxolane-4-methanol in aqueous binder dispersions.

Abstract: An agent for the single-stage full blocking of polyisocyanates comprises or consists of an alcohol mixture A) comprising a) furfuryl alcohol or substituted furfuryl alcohols in an amount corresponding to from 60 to 90, in particular from 65 to 85, mol % of hydroxyl groups and b) at least one monoalcohol in an amount corresponding to at least 2 mol % of hydroxyl groups, based in each case on the total amount of hydroxyl groups in components a) and b). In addition, the alcohol mixture A) may also include at least one aliphatic polyol c) of low molecular mass with a functionality of three and/or more in an amount corresponding to at least 5 mol % of hydroxyl groups, based on the total amount of hydroxyl groups in components a), b) and c). In this case component b) can have a molecular weight of <163 g/mol.