Abstract: This description relates to low VOC water borne coating compositions with improved application properties based on a binder mixture comprising an urethanized polyester and an acrylic two-step polymer. This description further relates to the use of the low VOC water borne coating compositions for forming a coating, preferably for forming a clear coat, and more preferably for forming a clear coat in refinishing applications. Moreover, this description also relates to a method of forming a multilayer coating comprising a step of forming a coating layer by using the low VOC water borne coating composition.

Abstract: Methods of coating a substrate are provided. In an exemplary embodiment, a coating composition is applied to the substrate with a high transfer efficiency applicator to produce a coating layer, where the high transfer efficiency applicator and the substrate remain spatially separate while the coating composition is applied. A droplet of the coating composition expelled from the high transfer efficiency applicator has a particle size of about 10 microns or greater. The coating composition has a viscosity of from about 1,000 to about 1,000,000 centipoise when the coating composition is subject to a shear rate of about 0.1 reciprocal seconds (s?1). However, the coating composition is non-Newtonian such that a coating composition viscosity decreases when the shear rate is increased to the coating composition. The coating layer is impinged with a gas such that a coating layer surface moves upon impingement with the gas.

Abstract: Waterborne top coat compositions, processes for preparing such compositions, and methods for forming top coats on substrates are provided. In an embodiment, a waterborne top coat composition includes water, pigment(s) and resin solids. The resin solids comprise about 60 to 100 wt. % of binder solids and 0 to about 40 wt. % of crosslinker solids, the binder solids comprising about 1 to about 40 wt. % of an acrylic/(meth)acryl copolymer hybrid binder, and about 60 to about 99 wt. % of one or more additional binders, the sum of the respective wt. % in each case equaling 100 wt. %.

Abstract: Waterborne top coat compositions, processes for preparing such compositions, and methods for forming top coats on substrates are provided. In an embodiment, a waterborne top coat composition includes water, pigment(s) and resin solids. The resin solids comprise about 60 to 100 wt. % of binder solids and 0 to about 40 wt. % of crosslinker solids, the binder solids comprising about 1 to about 40 wt. % of a urethanized polyester/(meth)acryl copolymer hybrid binder having a hydroxyl number of about 30 to about 200 mg KOH/g and a carboxyl number of about 8 to about 50 mg KOH/g, and about 60 to about 99 wt. % of one or more additional binders, the sum of the respective wt. % in each case equaling 100 wt. %.

Abstract: This description relates to low VOC water borne coating compositions with improved application properties based on a binder mixture comprising an urethanized polyester and an acrylic two-step polymer. This description further relates to the use of the low VOC water borne coating compositions for forming a coating, preferably for forming a clear coat, and more preferably for forming a clear coat in refinishing applications. Moreover, this description also relates to a method of forming a multilayer coating comprising a step of forming a coating layer by using the low VOC water borne coating composition.

Abstract: This disclosure relates to a coating composition including a polyisocyanate chain extended NH functional pre-polymer, a method for coating of a metallic or plastic substrate as well as the use of the polyisocyanate chain extended NH functional pre-polymer for improving the adhesion of a coating composition on a metallic or plastic substrate and/or for improving the adhesion between two adjacent layers of multiple layers and the use of the coating composition in a one-component coating composition or two-component coating composition.

Abstract: This invention relates to a coating composition, a method for coating of a metallic substrate as well as the use of the coating in a two-component coating composition.

Abstract: Waterborne base coat compositions and processes for preparing base coat/clear top coat multi-layer coatings are provided. In an embodiment, a waterborne base coat composition includes water, pigment(s) and resin solids consisting of about 60 to 100 wt. % of binder solids and 0 to about 40 wt. % of crosslinker solids, the binder solids consisting of about 1 to about 40 wt. % of a urethanized polyester/(meth)acryl copolymer hybrid binder having a hydroxyl number of about 30 to about 200 mg KOH/g and a carboxyl number of about 8 to 50 mg KOH/g, and about 60 to about 99 wt. % of one or more further binders, the sum of the respective wt. % in each case equaling 100 wt. %.

Abstract: This invention relates to a coating composition, a method for coating of a metallic substrate as well as the use of a chain-extended aspartate prepolymer for improving the early hardness of the coating composition and in a two-component coating composition.

Abstract: This invention relates to a coating composition, a method for coating of a metallic substrate as well as the use of the coating in a two-component coating composition.

Abstract: A process for the production of an OEM base coat/clear top coat multi-layer coating wherein a waterborne base coat composition is spray-applied by electrostatically-assisted high speed rotary atomization, wherein the waterborne base coat composition comprises binder solids comprising about 20 to about 100 wt. % of an aqueously dispersed polyurethane urea resin with a carboxyl number of about 10 to 50 mg KOH/g.

Abstract: This disclosure relates to a coating composition including a polyisocyanate chain extended NH functional pre-polymer, a method for coating of a metallic or plastic substrate as well as the use of the polyisocyanate chain extended NH functional pre-polymer for improving the adhesion of a coating composition on a metallic or plastic substrate and/or for improving the adhesion between two adjacent layers of multiple layers and the use of the coating composition in a one-component coating composition or two-component coating composition.

Abstract: This invention relates to a coating composition, a method for coating of a metallic substrate as well as the use of a chain-extended aspartate prepolymer for improving the early hardness of the coating composition and in a two-component coating composition.

Abstract: A process for the production of an OEM base coat/clear top coat multi-layer coating wherein a waterborne base coat composition is spray-applied by electrostatically-assisted high speed rotary atomization is provided. The waterborne base coat composition comprises binder solids comprising about 20 to about 100 wt. % of an aqueously dispersed polyurethane urea resin with a carboxyl number of 10 to 50 mg KOH/g.

Abstract: Two-component coating compositions include: A) a cross-linkable binder compound having at least one functional group reactive towards isocyanate groups, B) a cross-linking agent having at least one free isocyanate group and C) a catalyst component comprising C1) a catalyst for the for the curing reaction between the functional groups of component A) and the isocyanate groups of component B), the catalyst C1) being an organo-metal compound, and C2) an oligomeric or polymeric binder compound having a glass transition temperature Tg of ?about 20° C., measured by DSC (differential scanning calorimetry) at a heating rate of 10 K/min. The glass transition temperature Tg of the binder compound C2) is above the temperature at which the two-component coating composition is applied, preferably about 10° C. above the temperature at which the two-component coating composition is applied.

Abstract: Catalyst compounds for water-based two-component coating compositions include: I) an organo-metal catalyst for a curing reaction between isocyanate groups and functional groups reactive towards isocyanate groups and II) an oligomeric or polymeric binder compound having a glass transition temperature Tg of ?20° C., measured by DSC (differential scanning calorimetry) at a heating rate of 10 K/min. The glass transition temperature Tg of binder compound II) is above the temperature at which a water-based two-component coating composition comprising the catalyst compound is applied, preferably is at least 10° C., more preferred at least 20° C., above the temperature at which the two-component coating composition is applied.

Abstract: Waterborne base coat compositions and processes for preparing base coat/clear top coat multi-layer coatings are provided. In an embodiment, a waterborne base coat composition includes water, pigment(s) and resin solids consisting of about 60 to 100 wt. % of binder solids and 0 to about 40 wt. % of crosslinker solids, the binder solids consisting of about 1 to about 40 wt. % of a urethanized polyester/(meth)acryl copolymer hybrid binder having a hydroxyl number of about 30 to about 200 mg KOH/g and a carboxyl number of about 8 to 50 mg KOH/g, and about 60 to about 99 wt. % of one or more further binders, the sum of the respective wt. % in each case equaling 100 wt. %.

Abstract: A process for multilayer coating of substrates includes applying a base coat layer of a water-based color- and/or special effect-imparting base coat composition onto a substrate, applying a clear coat layer of a transparent clear coat composition onto the base coat layer, and curing the clear coat layer. The base coat composition contains a water-dilutable polyurethane hybrid binder, obtained by polymerization of a polyurethane macromonomer, containing a lateral and/or terminal vinyl group, in the presence of an unsaturated monomer copolymerizable with the polyurethane macromonomer, a curing agent, and a pigment. The polyurethane macromonomer is based on a polyhydroxyl compound. The polyhydroxyl compound comprises at least about 50% by weight of at least one polycarbonate polyol, which is liquid at 20° C., the % by weight based on the total amount of the polyhydroxyl compound.

Abstract: A liquid coating composition containing a crosslinkable binder A, as an optional component a crosslinker B for the binder A, and a latent catalyst C, wherein C is a carboxyl-functional resin which is present in the liquid coating composition as particles having a melting temperature of 40 to 180° C., measured by DSC at a heating rate of 10 K/min.

Abstract: A process for the production of an OEM base coat/clear top coat multi-layer coating wherein a waterborne base coat composition is spray-applied by electrostatically-assisted high speed rotary atomization, wherein the waterborne base coat composition comprises binder solids comprising about 20 to about 100 wt. % of an aqueously dispersed polyurethane urea resin with a carboxyl number of about 10 to 50 mg KOH/g.