Abstract: A thermosetting composition comprising a co-reactable solid, particulate mixture of (a) beta-hydroxyalkylamide crosslinking agent, e.g., bis(N,N-di-2-hydroxyethyl)adipamide, and (b) polycarboxylic acid functional polymer, is described. The polycarboxylic acid functional polymer is prepared by atom transfer radical polymerization and has well defined polymer chain architecture and polydispersity index of less than 2.5. The thermosetting compositions of the present invention have utility as powder coatings compositions.

Abstract: A thermosetting composition comprising a co-reactable solid, particulate mixture of (a) beta-hydroxyalkylamide crosslinking agent, e.g., bis(N,N-di-2-hydroxyethyl)adipamide, and (b) polycarboxylic acid functional polymer, is described. The polycarboxylic acid functional polymer is prepared by atom transfer radical polymerization and has well defined polymer chain architecture and polydispersity index of less than 2.5. The thermosetting compositions of the present invention have utility as powder coatings compositions.

Abstract: A powder coating composition of a solid particulate film-forming mixture including (a) a carbamate group-containing polymer having a glass transition temperature of at least 30° C.; and (b) a curing agent having functional groups reactive with the carbamate functional groups of the polymer. Also provided is a multi-component composite coating composition characterized by a pigmented basecoat deposited from a pigmented film-forming composition and a substantially pigment-free top coat applied over the basecoat. The top coat is deposited from the powder coating composition. A method of forming a wrinkled coating on a substrate is further provided where a curable powder coating composition is prepared from a solid particulate film-forming mixture, applied to a substrate and thermally cured to form a continuous coating having a wrinkled surface. The solid particulate film-forming mixture includes (a) a carbamate functional group-containing polymer having a glass transition temperature at least 30° C.

Abstract: A thermosetting composition comprising a co-reactable solid, particulate mixture of (a) capped polyisocyanate crosslinking agent, e.g., a trimer of 1-isocyanato-3,3,5-trimethyl-5-isocyanatomethylcyclohexane capped with e-caprolactam or 1H-2,5-dimethyl pyrazole, and (b) hydroxy functional polymer, is described. The hydroxy functional polymer is prepared by atom transfer radical polymerization and has well defined polymer chain architecture and polydispersity index of less than 2.5. The thermosetting compositions of the present invention have utility as powder coatings compositions.

Abstract: A thermosetting composition comprising a co-reactable solid, particulate mixture of (a) epoxy functional polymer, and (b) co-reactant having functional groups reactive with the epoxy groups of (a), e.g., dodecanedioic acid, is described. The epoxy functional polymer is prepared by atom transfer radical polymerization and has well defined polymer chain architecture and polydispersity index of less than 2.5. The thermosetting compositions of the present invention have utility as powder coatings compositions.

Abstract: A thermosetting composition comprising a co-reactable solid, particulate mixture of (a) beta-hydroxyalkylamide crosslinking agent, e.g., bis(N,N-di-2-hydroxyethyl)adipamide, and (b) polycarboxylic acid functional polymer, is described. The polycarboxylic acid functional polymer is prepared by atom transfer radical polymerization and has well defined polymer chain architecture and polydispersity index of less than 2.5. The thermosetting compositions of the present invention have utility as powder coatings compositions.

Abstract: A thermosetting composition comprising a co-reactable solid, particulate mixture of (a) capped polyisocyanate crosslinking agent, e.g., a trimer of 1-isocyanato-3,3,5-trimethyl-5-isocyanatomethylcyclohexane capped with e-caprolactam or 1H-2,5-dimethyl pyrazole, and (b) hydroxy functional polymer, is described. The hydroxy functional polymer is prepared by atom transfer radical polymerization and has well defined polymer chain architecture and polydispersity index of less than 2.5. The thermosetting compositions of the present invention have utility as powder coatings compositions.

Abstract: A thermosetting composition comprising a co-reactable solid, particulate mixture of (a) polycarboxylic acid functional polymer, and (b) epoxide functional crosslinking agent having at least two epoxide groups, e.g., triglycidyl isocyanurate (TGIC), is described. The polycarboxylic acid functional polymer is prepared by atom transfer radical polymerization and has well defined polymer chain architecture and polydispersity index of less than 2.0. The thermosetting compositions of the present invention have utility as powder coatings compositions.

Abstract: A thermosetting composition useful as a powder coating comprises a co-reactable solid, particulate mixture of (a) an epoxy functional polymer containing at least one of the polymer chain structures -[(M)p-(G)q]x- or -[(G)q-(M)p]x- wherein M is an oxirane-free residue of at least one ethylenically unsaturated monomer, G is a glycidyl-functional ethylenically unsaturated monomer, p and q each independently has a value of 0 to typically less than 100, and x has a value of at least 1 to typically less than 100, the total value of p, q and x selected such that said epoxy functional polymer has a number average molecular weight of at least 250, and (b) a co-reactant having functional groups reactive with the epoxy groups of (a), e.g., dodecanedioic acid. The epoxy functional polymer is prepared by atom transfer radical polymerization and a polydispersity index of less than 2.5.

Abstract: A thermosetting composition comprising a co-reactable solid, particulate mixture of (a) polycarboxylic acid functional polymer, and (b) epoxide functional crosslinking agent having at least two epoxide groups, e.g., triglycidyl isocyanurate (TGIC), is described. The polycarboxylic acid functional polymer is prepared by atom transfer radical polymerization and has well defined polymer chain architecture and polydispersity index of less than 2.0. The thermosetting compositions of the present invention have utility as powder coatings compositions.

Abstract: A thermosetting composition comprising a co-reactable solid, particulate mixture of (a) polycarboxylic acid functional polymer, and (b) epoxy functional polymer, is described. The polycarboxylic acid functional polymer and epoxy functional polymer are each prepared by atom transfer radical polymerization and have well defined polymer chain architecture and polydispersity index of less than 2.5. The thermosetting compositions of the present invention have utility as powder coatings compositions.

Abstract: Cured thermoset multilayered composite coatings with a powder clear coat and a waterborne base coat have improved chip resistance for the coating. The waterborne base coat composition has one or more crosslinkable film-forming polymers, one or more crosslinking agents for crosslinking the film-forming polymer, and one or more pigments. This basecoat is applied to a bare or previously painted substrate to give a film thickness in the range of about 0.1 to 3 mils (2.54 to 76.2 microns). The basecoat is dehydrated from treatment at a temperature from ambient to an elevated temperature of up to about 90.degree. C. for up to about 15 minutes before it is contacted with powder clear coating composition. The powder clear coating composition has a predominant amount of one or more crosslinkable, meltable and mobile film-forming polymer and/or copolymer having a weight average molecular weight of one or polymers/copolymers in the range of about 2000 to about 6000.

Abstract: An adherent coating composition and method has a resin composition that is the polymerization reaction product of one or more polyhydric alcohols and two polybasic carboxylic acids and salt forming compounds of phosphorus. The carboxylic acid is comprised of at least adipic acid and phthalic anhydride in a mole ratio in the range of about 0.6:1 to about 3:1, and the phosphorus compound is present in the range of about 1 to about 5 weight percent of the resin composition. The resin composition can have a weight average molecular weight in the range of about 1100 to about 4000 and an acid value in the range of about 5 to about 40. Optionally, the resin can have up to about 35 weight percent of tetrahydrophthlic anhydride. The resin composition is ungelled and curable with crosslinking agents in an amount of about 30 to about 90 weight percent of resin to about 10 to about 45 weight percent of the crosslinking agent.

Abstract: In accordance with the present invention, metal pigments are provided which are normally reactive with water or moisture to release hydrogen gas ("gassing") and which have been stabilized against such gassing by having their surfaces treated with an adduct of a maleinized fatty acid and/or a maleinized alpha-olefin and a polyol. Waterborne film-forming compositions which comprise an aqueous diluent medium, a film-forming polymer, and metal pigment stabilized against gassing by treatment with an adduct of a maleinized fatty acid or a maleinized alpha-olefin and a polyol are also provided.

Abstract: N-acyl aminomethylene phosphonates are provided having a group defined by the following general formula: ##STR1## wherein R.sub.1 is hydrogen, an aliphatic radical having 1 to 25 carbon atoms, or an aromatic radical having 6 to 25 carbon atoms; R.sub.2 is hydrogen, an aliphatic radical having 1 to 25 carbon atoms, or an aromatic radical having 6 to 25 carbon atoms; and R.sub.3 is a group remaining after reaction of a hydroxyl group-containing or epoxy group-containing polymer with an acidic hydrogen of a ##STR2## group. Also provided are waterborne coating compositions containing metallic pigments which are normally reactive with water or moisture to release hydrogen gas, stabilized against gassing by incorporation of these N-acyl aminomethylene phosphonates into the waterborne coating compositions.

Abstract: Pigment dispersing vehicles which are polymers containing one or more groups of the structure: ##STR1## are disclosed. The pigment dispersing vehicles can be used to form pigment dispersions by the pigment flushing mechanism. The resultant dispersions have high pigment loadings and color strength enabling them to be used across many coating lines.