Abstract: A composite coating is described. The composite comprises a substrate; one or more primer coating layers disposed on the substrate; and at least one topcoat layer disposed on the outermost primer coating layer. The outermost primer coating layer is obtained by reaction of a primer composition that includes a novolac resin having at least one carbamate group and an aminoplast resin.

Abstract: A method for stabilizing inorganic pigments in aqueous media and waterborne coating compositions is provided. The method comprises forming a pigment treatment composition of a polyester havng an acid number between 15 mg KOH/g and 50 mg KOH/g or a phosphate ester or pyrophosphate ester, having an acid number between 10 mg KOH/g and 50 mg KOH/g, solvent, and an amino functional resin. The composition is then deposited on the pigment. The treated pigment is stable in an aqueous environment and is suitable for waterborne coating compositions.

Abstract: The present invention relates to a coating composition containing a combination of ultraviolet light absorbing compounds, one or more of which is bound to a polymer, and a method for reducing degradation of coating compositions due to ultraviolet light exposure.

Abstract: Curable coating compositions are described comprising(a) a polymer resin comprising active hydrogen-containing functional groups,(b) a curing agent having groups that are reactive with said functional groups on (a), and(c) a compound comprising at least one carbamate group that is the reaction product of:(1) a hydroxyl group that is the result of a ring-opening reaction between an epoxy group and an organic acid group, and(2) cyanic acid or a compound comprising a carbamate group.

Abstract: Disclosed is a composite coating, comprising a substrate; one or more primer coating layers disposed on said substrate; and at least one topcoat layer disposed on the outermost primer coating layer, wherein said outermost primer coating layer is obtained by reaction of a primer composition comprising an acrylic resin having primary carbamate functionality and an aminoplast resin.

Abstract: The present invention provides a straight-shade color coating composition comprising a colored metallic flake pigment. The coating composition produces a coating having no apparent gonioapparent effects. The present invention may be used to prepare coatings with increased hiding power at the same color pigment-to-binder ratio or with the same hiding power but lower color pigment-to-binder ratio as compared to previous coating of equivalent hue. The present invention also provides coatings with higher chroma non-pastel colors and cleaner pastel colors as compared to previous coating compositions of equivalent hue.

Abstract: A spray gun cleaning device for capturing and condensing cleaning solvent and a method for using. The spray gun cleaning device comprises:(a) a passage way comprising an inlet and an outlet, wherein said inlet defines a receptacle for receiving a spray gun nozzle,(b) a vertically descending member having a proximal opening and first and second distal openings, wherein the first distal opening is located downstream from the proximal opening and at a 90.degree. angle to the second distal opening, and wherein the descending member is connected to the passage way at its proximal opening,(c) a waste collection container located downstream of the vertically descending member, and connected to the first distal opening of the descending member, and(d) a vertically ascending passive condenser attached to the vertically descending member at its second distal opening, wherein the condenser comprises a multiplicity of tubular members located adjacent to one another.

Abstract: A coating composition is described comprising, in an aqueous medium:A) a resin having a plurality of primary amine groups, andB) a curing agent having a plurality of cyclic carbonate groups.

Abstract: The present invention is a coating composition having good scratch resistance and a method for improving the scratch resistance of a coating composition. The coating composition comprises(A) a film forming binder system containing a crosslinkable resin and optionally a crosslinking agent for the crosslinkable resin;(B) substantially colorless carbide or inorganic microparticles, range in size from about 1 to 1000 nanometers prior to incorporation in the coating composition, and the microparticles are reactive with the crosslinkable portion of the film forming binder system;(C) a solvent system for the crosslinkable resin, optional crosslinking agent, and microparticles, wherein the crosslinkable resin is present in an amount from about 10 to about 80% by weight and the inorganic microparticles are present in an amount from 0.1 to 60.0% by weight based on the sum of the weights of the crosslinkable resin, the optional crosslinking agent, and the inorganic microparticles.

Abstract: A coating composition is disclosed that includes:(A) a multi-functional compound having(1) at least one carbamate or urea functional group,(2) at least one other functional group which may or may not be carbamate or urea, and(3) at least one hydrogen bond acceptor group that is not also a hydrogen bond donor group, with the proviso that said multi-functional compound is other than an acrylic polymer or oligomer having carbamate functional or urea groups appended to the acrylic backbone through acrylic ester side chains, a polyester polymer or oligomer that is the polycondensation reaction product of a polyol and a polyacid component, or a polyurethane that is the reaction product of a polyisocyanate component and a polyester polyol component, and(B) a curing agent comprising a plurality of groups that are reactive with the functional groups on compound (A).

Abstract: There is described a curable coating composition comprising:(A) a carbamate-functional component that is the reaction product of:(1) a compound comprising a plurality of hydroxyl groups, at least one of which is the result of a ring-opening reaction between an epoxy group and an organic acid group, and(2) cyanic acid or a compound comprising a carbamate group, and(B) a component comprising a plurality of groups that are reactive with the carbamate functional groups on component (A).

Abstract: Coating compositions are disclosed having very fine mica with particle sizes ranging from 0.1 to 15 microns which produce added color to the coating without producing a metallic effect or color travel.

Abstract: Polyurethane polymers having pendant carbamate groups are disclosed. The polymers are prepared by:(a) reacting a mixture comprising a polyol having at least one pendant carbamate group and a polyisocyanate to form a polyurethane having pendant carbamate groups, and(b) optionally, capping the polyurethane from (b) with an active hydrogen-containing capping agent.

Abstract: A curable coating composition is described comprising(A) a carbamate- or urea-functional compound that is the reaction product of(1) a compound comprising a carbamate or urea group or a group that can be converted to carbamate or urea, and a hydroxyl functional group that is the reaction product of(a) a compound comprising a carbamate or urea group or a group that can be converted to a carbamate or urea group, and an active hydrogen group that is reactive with a lactone or a hydroxy carboxylic acid, and(b) a lactone or hydroxy carboxylic acid, and(2) a component that is reactive with compound (A)(1) to convert a hydroxyl group on compound (A)(1) to a carbamate group, or a component comprising a group that is reactive with a hydroxyl group on compound (A)(1) and a carbamate or urea group or group that can be converted to carbamate or urea,(B) a compound comprising a plurality of groups that are reactive with carbamate or urea.

Abstract: The present invention relates to a process for the preparation of an aqueous coating composition containing a carboxyl-containing epoxy resin having an acid number in the range from 5 to 200 mg of KOH/g and having an epoxide equivalent weight in the range from 1000 to 40,000, optionally crosslinking agents, organic solvents, optionally conventional assistants and additives, and optionally pigments and fillers. The organic binder solution is neutralized using a tertiary amine in the temperature range from 60.degree. C. to 120.degree. C. This is followed by dispersion in water, with the proviso that at least 95% of the epoxide groups of the epoxy resin have been reacted. The aqueous coating compositions prepared by the process are preferably used for coating cans.

Abstract: A curable coating composition is described comprising(A) a compound comprising carbamate or urea and hydroxyl functional groups that is the reaction product of(1) a compound comprising a carbamate or urea group or a group that can be converted to a carbamate or urea group, and an active hydrogen group that is reactive with a lactone or a hydroxy carboxylic acid, and(2) a lactone or a hydroxy carboxylic acid,(B) a compound comprising at least one group that is reactive with carbamate and at least one group that is reactive with hydroxyl, or a plurality of groups that are reactive with both carbamate and hydroxyl.

Abstract: The present invention is a process for hydrophobically modified emulsion polymers, polymers obtained thereby, waterborne coating compositions containing the polymers and a coated substrate coated with the coating composition. The emulsion polymer is formed by first combining hydrophobic polymeric compound and .alpha.,.beta.-ethylenically unsaturated monomer, and surfactant to form a mixture and subjecting the mixture to high stress techniques to form stabilized particles of the hydrophobic polymer and monomers, in the aqueous phase, said particles having a particle size between 50 and 500 nm. The polymerizable material within the particles is polymerized to form a hydrophobically modified core polymer. Additional monomers including at least one .alpha.,.beta.-ethylenically unsaturated hydrophilic monomer are then added to the core polymer and polymerized by emulsion polymerization, to form a hydrophobically modified core-shell emulsion polymer.

Abstract: The present invention is a two-component coating composition comprising an acrylic polymer having a T.sub.g between 53.degree. C. and 86.degree. C. and a diisocyanate crosslinker. The crosslinking agent is preferably the isocyanurate of hexamethylene diisocyanate, derivatives thereof, biurets of the isocyanurate of hexamethylene diisocyanate and derivatives thereof. The coating composition exhibits excellent durability and resistance to environmental etch.

Abstract: A method for reducing the molecular weight of aminoplast compounds, the aminoplast compounds obtained thereby, and coating compositions containing said aminoplast compounds are provided. The reduced molecular weight aminoplasts are obtained by reacting(a) an aminoplast compound, having a total number (y) of reactive substituents on the amino nitrogens of the aminoplast, where y=(E.times.M) and E=equivalents per mole of aminoplast and M=total number of moles of aminoplast, wherein the reactive substituents are selected from the group consisting of --NH, alkylol, alkoxy, alkoxyalkyl, and mixtures thereof and(b) at least one carbamate compound selected from the group consisting of unsubstituted and substituted primary carbamate compounds, unsubstituted and substituted secondary carbamate compounds and mixtures thereof,in the presence of primary or secondary alcohols, at temperatures under 150.degree. C.

Abstract: A curable coating composition is described comprising (A) a compound comprising a plurality of functional crosslinking groups, at least one of which is a carbamate or urea functional group, which compound also includes at least one ester or amide group derived from a reaction of an active hydrogen group with a lactone ring or a hydroxy carboxylic acid, and (B) a curing agent comprising a plurality of groups that are reactive with the functional groups on compound (A).