Abstract: The invention relates to a method for forming a coating on a substrate material which includes applying one or more layers of a monomer composition to a surface of the substrate. At least one monomer layer comprises a photoinitiator, and at least one monomer layer comprises a photo-generated base precursor. The monomer layer is exposed to a first wavelength of light to initiate polymerization of the monomers. The monomer layer is subsequently exposed to a second wavelength of light to terminate the polymerization.

Abstract: The invention relates to a method for applying a photo-activated layered polymer coating to a substrate material in which one or more layers do not contain photoinitiator, or are not exposed to initiating light, but cure due to migration of cationic active centers. At least two separate monomer layers are applied to the substrate material. At least one of the monomer layers includes a photoinitiator capable of producing cationic active centers. The at least one layer including the photoinitiator is exposed to a source of UV radiation at a desired wavelength forming cationic active centers. The at least two separate monomer layers react in a polymerization reaction forming a cured layered material. The cationic active centers of the exposed monomer layer migrate to the unexposed layer such that both layers cure via the polymerization reaction.

Abstract: The invention relates to a method for applying a photo-activated layered polymer coating to a substrate material in which one or more layers do not contain photoinitiator, or are not exposed to initiating light, but cure due to migration of cationic active centers. At least two separate monomer layers are applied to the substrate material. At least one of the monomer layers includes a photoinitiator capable of producing cationic active centers. The at least one layer including the photoinitiator is exposed to a source of UV radiation at a desired wavelength forming cationic active centers. The at least two separate monomer layers react in a polymerization reaction forming a cured layered material. The cationic active centers of the exposed monomer layer migrate to the unexposed layer such that both layers cure via the polymerization reaction.

Abstract: The present disclosed subject matter provides a method for improving the weathering resistance of a coating of paint on a substrate when exposed to adverse environmental conditions. More particularly, the method includes applying a post-production coating to a base coating, where the post-production coating contains a greater concentration of ultraviolet (UV) protectant as compared to the base coating. The UV protectant contained in the post-production coat migrates along a concentration gradient to the base coating, thereby enriching the concentration of UV protectant in the base coating. Although this application will help protect the base paint coating on a variety of substrates from damage due to environmental conditions, the present disclosed subject matter is ideally suited for motor vehicle coating applications.

Abstract: A self-stratifying coating composition is provided. The self-stratifying coating can include a base layer having a telechelic resin with reactive end groups and an alkoxide oligomer. In addition, a top layer having an acrylate and/or methacrylate such as a fluorinated acrylate, a fluorinated methacrylate, a fluorinated hydrocarbon copolymerized with an acrylate, a fluorinated hydrocarbon copolymerized with a methacrylate and combinations thereof, and a crosslinking agent can be included. In addition, the base layer and the top layer can have an interfacial surface tension therebetween that is within a range of about 15 to 60 mJ/cm2.

Abstract: The invention relates to a method for forming a coating on a substrate material which includes applying one or more layers of a monomer composition to a surface of the substrate. At least one monomer layer comprises a photoinitiator, and at least one monomer layer comprises a photo-generated base precursor. The monomer layer is exposed to a first wavelength of light to initiate polymerization of the monomers. The monomer layer is subsequently exposed to a second wavelength of light to terminate the polymerization.

Abstract: The present invention discloses a reactivity-based self-stratifying coating composition. The coating composition can include a polyol, silsesquioxane, a polyester polyol, and a crosslinker that form a mixture within a solvent. The polyol can be selected from a fluorinated polyether, a fluoroethylene-alkyl vinyl ether and/or a combination thereof. The silsesquioxane can be an epoxy functional silsesquioxane having a formula of (R)6(C6H11O2)2(SiO1.5)8 where R can be selected from hydrogen, methyl, ethyl, propyl, butyl, pentyl, hexyl, cyclopentyl, cyclohexyl, benzyl, phenyl, and isomers thereof. In some instances, the epoxy functional silsesquioxane can be a di-epoxy silsesquioxane.

Abstract: An object of complex three-dimensional configuration, such as an automotive vehicle body, is coated with a combination of a coating formulation and a photoactivated mixture containing active centers that have been produced prior to application. The two liquids can be intimately mixed prior to application to the object, or the coating formulation can be applied prior to the application of the photoactivated mixture. The coating formulation is cured by the active centers that have been produced prior to application.

Abstract: Telechelic resins with reactive end groups (e.g., epoxy phosphate and epoxy ester) were synthesized using bisphenol-A (BPA) epoxide. The bisphenol-A based epoxide and the telechelic resins were all modified with tetraethylorthosilicate (TEOS) oligomers to produce epoxide/polysilicate (organic/inorganic) hybrid systems. The modified epoxides were thermally cured with a melamine-formaldehyde resin, cast on steel substrates and salt spray analysis revealed that the inorganically modified epoxides provided improvement over unmodified epoxide resins with respect to both corrosion resistance and adhesion to steel substrates.

Abstract: A series of low, medium, and high molecular weight copolymers containing methyl methacrylate, n-butyl acrylate. 2-hydroxyethyl methacrylate, and 2,2,2-trifluoroethyl methacrylate were synthesized by solution polymerization under monomer-starved conditions. The copolymers were crosslinked with a methylated melamine formaldehyde resin in order to obtain thermosetting acrylics. Lower wettability, higher oxygen permeability, and lower refractive index were observed for higher concentrations of fluorinated monomer in the copolymer composition and high number-average hydroxyl functionality of the high molecular weight copolymers increased the crosslink density of the acrylic films, thereby resulting in improved tensile strength and tensile modulus.

Abstract: A self-stratifying coating composition is provided. The self-stratifying coating can include a base layer having a telechelic resin with reactive end groups and an alkoxide oligomer. In addition, a top layer having an acrylate and/or methacrylate such as a fluorinated acrylate, a fluorinated methacrylate, a fluorinated hydrocarbon copolymerized with an acrylate, a fluorinated hydrocarbon copolymerized with a methacrylate and combinations thereof, and a crosslinking agent can be included. In addition, the base layer and the top layer can have an interfacial surface tension therebetween that is within a range of about 15 to 60 mJ/cm2.

Abstract: The invention relates to a method for applying a photo-activated layered polymer coating to a substrate material in which one or more layers do not contain photoinitiator, or are not exposed to initiating light, but cure due to migration of cationic active centers. At least two separate monomer layers are applied to the substrate material. At least one of the monomer layers includes a photoinitiator capable of producing cationic active centers. The at least one layer including the photoinitiator is exposed to a source of UV radiation at a desired wavelength forming cationic active centers. The at least two separate monomer layers react in a polymerization reaction forming a cured layered material. The cationic active centers of the exposed monomer layer migrate to the unexposed layer such that both layers cure via the polymerization reaction.

Abstract: The present invention discloses a reactivity-based self-stratifying coating composition. The coating composition can include a polyol, silsesquioxane, a polyester polyol, and a crosslinker that form a mixture within a solvent. The polyol can be selected from a fluorinated polyether, a fluoroethylene-alkyl vinyl ether and/or a combination thereof. The silsesquioxane can be an epoxy functional silsesquioxane having a formula of (R)6(C6H11O2)2(SiO1.5)8 where R can be selected from hydrogen, methyl, ethyl, propyl, butyl, pentyl, hexyl, cyclopentyl, cyclohexyl, benzyl, phenyl, and isomers thereof. In some instances, the epoxy functional silsesquioxane can be a di-epoxy silsesquioxane.

Abstract: An object of complex three-dimensional configuration, such as an automotive vehicle body, is coated with a combination of a coating formulation and a photoactivated mixture containing active centers that have been produced prior to application. The two liquids can be intimately mixed prior to application to the object, or the coating formulation can be applied prior to the application of the photoactivated mixture. The coating formulation is cured by the active centers that have been produced prior to application.