Abstract: The present invention relates to an article comprising metal coated with an aqueous dispersion of polyolefin particles as well as metal coated with a polyolefin film arising from this dispersion. More particularly the polyolefin particles of the present invention are predominantly polypropylene particles.

Abstract: The present disclosure provides for an aqueous dispersion for use in coating applications. The aqueous dispersion includes an aqueous composition and a solid content of a melt blend product having an acid functionalized polypropylene base polymer, a polypropylene copolymer, an acid functionalized polypropylene wax and an acid functionalized polyolefin. The aqueous dispersion is included in a coating composition, where the coating composition includes the aqueous dispersion, a solvent, a crosslinker and a basic water composition having water and a base. The present disclosure also provides for a coated article having a substrate and a coating on the substrate, where the coating includes the coating composition of the present disclosure.

Abstract: The present disclosure provides for an aqueous dispersion for use in coating applications. The aqueous dispersion includes an aqueous composition and a solid content of a melt blend product having an acid functionalized polypropylene base polymer, a polypropylene copolymer, an acid functionalized polypropylene wax and an acid functionalized polyolefin. The aqueous dispersion is included in a coating composition, where the coating composition includes the aqueous dispersion, a solvent, a crosslinker and a basic water composition having water and a base. The present disclosure also provides for a coated article having a substrate and a coating on the substrate, where the coating includes the coating composition of the present disclosure.

Abstract: The present invention provides aqueous polyolefin dispersion compositions for use in metal coatings, such as can coatings, comprising one or more polyolefin base polymer, one or more at least partially neutralized olefinic stabilizing agent having an acid number (AN) of from 80 to 250, preferably, a polyolefin stabilizing agent, such as an olefin-carboxylic acid copolymer or a blend of two such polymers, an optional coupling agent having an acid number (AN) of from 10 to 70 and a melt index of from 500 to 5,000,000 grams of polymer melt passing in 10 minutes through a heated syringe or cylinder at 190° C. with a plunger loaded with 2.16 kg, preferably, a polymer, and a hindered phenolic antioxidant containing an ester linkage dispersed in the polyolefin dispersion composition.

Abstract: The instant invention provides a polyester composition, method of producing the same, coating compositions made therefrom, and coating layers made from such coatings. The thermoset polyester composition according to the present inventions comprises the reaction product of: (a) one or more polyacids comprising at least 50 percent by the combined weight of one or more aromatic diacids; and (b) one or more polyols comprising at least 40 percent by the combined weight of 1,4-cyclohexanedimethanol and 2,2,4,4-tetramethylcyclobutanediol; wherein said polyester composition has a glass transition temperature in the range of from 70 to 125° C., a number average molecular weight between 6,000 and 20,000, a hydroxyl number in the range of from 4 to 18.

Abstract: The present invention provides aqueous polyolefin dispersion compositions for use in metal coatings, such as can coatings, comprising one or more polyolefin base polymer, one or more at least partially neutralized olefinic stabilizing agent having an acid number (AN) of from 80 to 250, preferably, a polyolefin stabilizing agent, such as an olefin-carboxylic acid copolymer or a blend of two such polymers, an optional coupling agent having an acid number (AN) of from 10 to 70 and a melt index of from 500 to 5,000,000 grams of polymer melt passing in 10 minutes through a heated syringe or cylinder at 190° C. with a plunger loaded with 2.16 kg, preferably, a polymer, and a hindered phenolic antioxidant containing an ester linkage dispersed in the polyolefin dispersion composition.

Abstract: The instant invention provides a polyester composition, method of producing the same, coating compositions made therefrom, and coating layers made from such coatings. The thermoset polyester composition according to the present inventions comprises the reaction product of: (a) one or more polyacids comprising at least 50 percent by the combined weight of one or more aromatic diacids; and (b) one or more polyols comprising at least 40 percent by the combined weight of 1,4-cyclohexanedimethanol and 2,2,4,4-tetramethylcyclobutanediol; wherein said polyester composition has a glass transition temperature in the range of from 70 to 125° C., a number average molecular weight between 6,000 and 20,000, a hydroxyl number in the range of from 4 to 18.

Abstract: An aqueous electrodeposition coating composition comprising a cathodically electrodepositable binder, the binder comprising a phosphorylated resin and a carboxyl group separated by from 2 to 4 carbons from an ester group, provides corrosion protection equivalent to that obtained by the conventional phosphate pretreatment-electrodeposition coating process.

Abstract: A coating composition, such as an electrodepositable electrocoat primer coating composition, comprises a phosphorylated acrylic polymer, The coating provides excellent corrosion protection even without a conventional phosphate pretreatment.

Abstract: An electrically conductive substrate is electrocoated with an aqueous electrodeposition coating composition comprising a cathodically electrodepositable binder, the binder comprising an amine-functional phosphorylated resin and at least one additional coating layer, such as a second primer layer, a topcoat layer, or both.

Abstract: A coating composition, such as an electrodepositable electrocoat primer coating composition, comprises a phosphorylated acrylic polymer, The coating provides excellent corrosion protection even without a conventional phosphate pretreatment.

Abstract: An aqueous electrodeposition coating composition comprising a cathodically electrodepositable binder, the binder comprising a phosphorylated resin and a carboxyl group separated by from 2 to 4 carbons from an ester group, provides corrosion protection equivalent to that obtained by the conventional phosphate pretreatment-electrodeposition coating process.

Abstract: A method of coating a substrate includes the steps of applying an electrocoat to the substrate, applying a powder primer onto the electrocoat, and then applying a topcoat onto the powder primer. The topcoat typically includes a powder basecoat and a clearcoat. The powder primer is applied to the electrocoat without first curing the electrocoat before application of the powder primer. The powder basecoat is applied to the powder primer without first curing the powder primer before application of the powder basecoat. The clearcoat is applied over the powder basecoat after which the electrocoat, the powder primer, the powder basecoat, and the clearcoat are simultaneously cured in an oven.

Abstract: A two-tone painting method includes applying a powder primer to a substrate, followed by a powder basecoat applied dry-on-dry onto the powder primer. The powder basecoat is preferably applied in the same painting booth as the powder primer, i.e., without curing the powder primer. The powder basecoat includes a flake additive, such as a mica flake or a metal flake, which prevents surface irregularities from forming in the powder primer and the powder basecoat as a result of not curing the powder primer before applying the powder basecoat. The substrate is then masked, and a second basecoat is applied. The masking is then removed and a clearcoat is applied. The second basecoat and the clearcoat are then cured simultaneously in an oven.

Abstract: The invention provides powder coatings having at least 25% by weight of an epoxy functional particulate component (a) having a Tg of at least 50° C. and of the structure: wherein n is a number from 0 to 15, and R1 is selected from the group consisting of linear, branched or cycloaliphatic C2-C20 alkyl groups and mixtures thereof, based on the total weight of all epoxy functional particulate components in the powder coating composition. The powder-coating compositions of the invention are suitable for use as primers over electrocoat and under composite basecoat/clearcoat systems. Powder primers of the invention provide simultaneous improvements in yellowing, chip resistance, UV durability and color stability.

Abstract: The invention provides powder coatings having at least 25% by weight of an epoxy functional particulate component (a) having a Tg of at least 50° C.

Abstract: A method for obtaining a cured multi-layer coating with good intercoat adhesion, comprising the steps of:a) applying to a substrate a first powder coating composition comprisingi) a polyester resin having a carboxyl functionality of less than two,ii) a crosslinker reactive toward the carboxyl groups of the polyester resin selected from the group consisting of epoxy-functional compounds,wherein the ratio of epoxy groups of the crosslinker to the carboxyl groups of the polyester is between 1.05:1 and 1.9:1,b) applying to the first coating layer at least one additional coating composition comprising a clearcoat includingi) a hydroxyl functional acrylic resin andii) a crosslinker reactive toward the hydroxyl groups on the acrylic resin,c) curing the coating compositions together or sequentially.

Abstract: The present invention relates to a thermoset powder coating composition and method of application. The coating includes a copolymer having a reactive functionality selected from the group consisting of epoxy, carboxy, and hydroxy functionalities and mixtures thereof, a suitable crosslinking agent capable of reaction with the reactive functionality on the copolymer, and an aliphatic or aromatic crystalline, hydroxyl containing compound having a melting point of between 30.degree. C. and 150.degree. C. and a flow control agent. The powder coating is a pigmented or clear coat powder composition applied over a primer layer.

Abstract: A thermosetting powder coating composition resistant to overspray incompatibility defects that comprises solid particulates of a uniform mixture of (a) a polyester resin having an average of two or more carboxyl groups, (b) a first crosslinker that is reactive toward the carboxyl groups of the polyester resin, (c) from 1% to 20% of a reactive acrylic copolymer having a weight average molecular weight of from 10,000 to 40,000, and (d) a second crosslinker that is reactive toward the reactive functionality of the acrylic copolymer is described.

Abstract: The present invention relates to a thermoset powder coating composition and method of application. The coating includes a copolymer having a reactive functionality selected from the group consisting of epoxy, carboxy, and hydroxy functionalities and mixtures thereof, a suitable crosslinking agent capable of reaction with the reactive functionality on the copolymer, and an aliphatic or aromatic crystalline, hydroxyl containing compound having a melting point of between 30.degree. C. and 150.degree. C. and a flow control agent. The powder coating is a pigmented or clear coat powder composition applied over a primer layer.