Abstract: Coating compositions for coil coating, methods for making such coating compositions and coil coating methods are provided. In an exemplary embodiment, a coating composition includes an aqueous carrier and a film-forming binder dispersed in the aqueous carrier. The film-forming binder contains an epoxy-amine adduct and a blocked polyisocyanate crosslinking agent. The film-forming binder has associated amine/acid groups until subjected to heat of at least about 165.5° C. (330° F.). The coating composition also contains a pigment and a grinding resin. The coating composition has a solids content of at least about 40 wt. % based on a total weight of the coating composition.

Abstract: Coating compositions for coil coating, methods for making such coating compositions and coil coating methods are provided. In an exemplary embodiment, a coating composition includes an aqueous carrier and a film-forming binder dispersed in the aqueous carrier. The film-forming binder contains an epoxy-amine adduct and a blocked polyisocyanate crosslinking agent. The film-forming binder has associated amine/acid groups until subjected to heat of at least about 165.5° C. (330° F.). The coating composition also contains a pigment and a grinding resin. The coating composition has a solids content of at least about 40 wt. % based on a total weight of the coating composition.

Abstract: This invention relates to a method for forming a multi-layer coating on a vehicle body, comprised of applying primer coating, base coating, and clear coat layers in a wet-on-wet-on-wet manner, and simultaneously curing the applied three layers together in a single baking step. The primer layer comprises a film-forming binder comprising two acrylic polymers, the first being a caprolactone-modified branched acrylic polymer and the second being a caprolactone-modified linear acrylic polymer; and a crosslinking agent selected from aminoplast resin, blocked polyisocyanates, or mixtures thereof, wherein the composition is, essentially free of crosslinked nonaqueous dispersion resin particles or crosslinked microgel resin particles or both. The resulting multi-layered coating has excellent aesthetic appearance, strike-in resistance, chipping resistance, sag resistance, and film build even when formed in a three wet layered application method.

Abstract: This invention relates to a method for forming a multi-layer coating on a vehicle body, comprised of applying primer coating, base coating, and clear coat layers in a wet-on-wet-on-wet manner, and simultaneously curing the applied three layers together in a single baking step. The primer layer comprises a film-forming binder (a) a caprolactone-modified linear acrylic polymer; and (b) an aminoplast resin crosslinking agent, wherein the composition is essentially free of crosslinked nonaqueous dispersion resin particles or crosslinked microgel resin particles or both. The resulting multi-layered coating film has excellent aesthetic appearance, strike-in resistance, chipping resistance, sag resistance, and film build even when formed in a three wet layered application method.

Abstract: The present invention provides for a one-pack primer-sealer composition for molded SMC parts such as automotive body panels that significantly reduces paint defects (such as paint pop and cracking defects) in the sealing and automotive OEM finishing operations. The coating composition includes silane and melamine components. The composition is sufficiently stable to be formulated as a one-pack coating composition.

Abstract: This invention relates to a thermosetting primer composition having a low VOC content useful in the manufacture of automobiles and trucks in which the film-forming binder comprises a thermal polymerization initiator and an addition-polymerizable ethylenically unsaturated monomer which serves a dual function of solvent and binder polymer formed in situ on thermal curing to deliver low VOC and desired rheological and physical properties. These primers are especially useful in reducing emissions, while also meeting today's performance requirements, such as ease of application and excellent physical properties such as corrosion resistance, a high level of adhesion to primed and unprimed substrates, and provide a surface to which conventional automotive topcoats will adhere.

Abstract: This invention relates to an improved solvent based high solids thermosetting coating composition having a low VOC content useful in the manufacture of automobiles and trucks comprising a film-forming binder, where the improvement is the inclusion in the binder of an addition-polymerizable ethylenically unsaturated compound and an effective amount of thermal free radical initiator to effect polymerization of the addition-polymerizable component using heat. The addition-polymerizable compound serves a dual function of solvent and auxiliary crosslinking agent for the coating system to deliver low VOC and desired rheological and physical properties. These coatings are especially useful in reducing emissions, while also meeting today's performance requirements for automotive topcoats, such as ease of application and excellent durability and appearance. No actinic radiation is needed to effect polymerization of the addition-polymerizable compound.

Abstract: A curable coating composition, and process of application thereof, particularly useful as a clearcoating applied over a pigmented basecoat that has significantly decreased VOC and improved scratch, etch, and mar resistance, is provided in accordance with the present invention, which is contains a silane functional oligomeric or polymeric material comprising carbamate groups and a crosslinking component comprising groups that are reactive with the carbamate groups.