Abstract: Polymer-based selective radiative cooling structures are provided which include a selectively emissive layer of a polymer or a polymer matrix composite material. Exemplary selective radiative cooling structures are in the form of a sheet, film or coating. Also provided are methods for removing heat from a body by selective thermal radiation using polymer-based selective radiative cooling structures.

Abstract: A curable aminoplast acrylic polyol composition containing, based on the complete weight of the solids of the composition, (a) 50 to 85% by weight of an acrylic polyol having a glass transition temperature Tg of from 50 to 70° C., an equivalent weight of hydroxyl groups on solids of from 320 to 400, and a hydroxyl number on solids of from 130 to 180 mg KOH/g, (b) 15 to 50% by weight of an alkylated amino formaldehyde resin having a formaldehyde content in accordance with DIN EN ISO 11402 4.3 of less than 0.10%, and the amino compound is melamine, guanamine, benzoguanamine, urea, toluenesulfonamide and glycoluril, containing at least two types of alkyl groups having 1 to 12 carbon atoms, and (c) 0.5 to 5.0% by weight of at least one type of an acidic catalyst, together with a process for preparation of the composition and methods of using the composition.

Abstract: A multilayer coating comprising (A) a multicoat paint system comprising (A1) at least one basecoat of a basecoat material comprising at least one melamine resin, and (A2) at least one clearcoat as the topmost coat of the multicoat paint system, and (B) an adhesive layer of a moisture-curing, isocyanate-based adhesive directly atop the topmost clearcoat layer of the multicoat paint system, wherein (i) all amino resins present in the basecoat material are fully methylolated, fully etherified melamine resins in which at least 90% of the etherified methylol groups are etherified with butanol, and (ii) the basecoat material contains at least 1.0% by weight, based on the total weight of the basecoat material, of at least one polyester binder having a hydroxyl number of at least 240 mg KOH/g and an acid number of not more than 10 mg KOH/g, and also a corresponding basecoat material and method of producing, and use of, the multilayer coating for adhesively bonding glass sheets.

Abstract: [Problem] Polyphenylenesulfide (PPS), polypropylene (PP), polyethylene (PE), stainless steel (SUS) and the like correspond to hard-to-bond materials, and thus it has been difficult to improve the adhesion to these materials in adhesives and sealants. [Solution] Provided is a curable resin composition containing: component (A), being a thermosetting resin composition; and component (B), being an adhesion-imparting agent consisting of a compound represented by the following general formula 1, or, containing the compound represented by the following general formula 1 and a compound represented by the following general formula 2: wherein in the general formula 1, n represents 0 to 2, R each independently represents an alkyl group having 1 to 10 carbon numbers or a derivative of the alkyl group, R? represents methyl group, ethyl group or propyl group, and in the general formula 2, m represents 1 to 3, and R1 represents hydrogen atom or methyl group.

Abstract: A coating material for an aluminum substrate for inkjet computer-to-plate and preparation method and use of same. The composition of the coating material is: high polymer 5-40 wt %; nano-sized and/or micro-sized oxide particles 5-30 wt %; organic solvent constituting the remainder. The high polymer is at least one selected from the group consisting of MMA-BMA-MA terpolymer resin, phenolic resin, epoxy resin, polyurethane, polyester, urea-formaldehyde resin, polyvinyl formal, polyvinyl butyral and gum arabic. The preparation method for obtaining the coating material is to mix the ingredients together and stir at room temperature. A spin coating method or a roll coating method is used to coat the coating material onto a clean aluminum substrate having not undergone electrolytic graining and anodic oxidation treatment, and then the substrate is baked, resulting in the required roughness.

Abstract: This invention relates to aminoplast crosslinker resins compositions based on at least partially alkylated reaction products A of melamine, formaldehyde and an alkanol with the following parameters: the ratio of the amount of substance n(CH2O) of combined formaldehyde to the amount of substance n(Mel) of melamine is in the range of from 5.6 mol/mol to 6.2 mol/mol, the ratio of the amount of substance n(RO) of alkyl ether groups in the crosslinker resin to the amount of substance n(Mel) of melamine is in the range of from 5.0 mol/mol to 5.6 mol/mol, the mass fraction of monomer in the resin, calculated as the ratio of the mass of monomer m(1) to the mass m(A) of the reaction products A is between 35% and 55%, to a process for their preparation, and to a method of use thereof as crosslinker in combination with hydroxy-functional polymers for coating of heat-sensitive substrates.

Abstract: Novel low viscosity oligomeric polyols and the use thereof in coating compositions are disclosed. The novel low viscosity oligomeric polyols may be prepared by reacting at least one melamine aldehyde resin and at least one of ?,?-diol, ?,?-diol, or mixture thereof. The reaction may occur in the presence of an acid catalyst. Coating compositions with a low VOC able to cure under ambient and forced dry conditions while providing good application and performance characteristics, such as an improved scratch resistance, are also disclosed.

Abstract: A method for coating an inorganic substrate with an inorganic coating from low viscosity suspensions, and the articles produced thereby.

Abstract: A paint and method are divulged for protecting the silver film of mirrors. The paint in its preferred embodiment includes a metal carboxylate which will contribute metal ions, namely stannous octoate for the contribution of stannous(II) ions in an amount of 0.5% or greater by weight. Alternate methods of the invention utilize an additional coating over the paint, such as an acrylic, epoxy or blend thereof which is UV curable. In another form of the paint, copper octoate is utilized in a minimum amount of 0.5% by weight for contribution of copper(II) ions.

Abstract: An aqueous thermosetting primer composition includes a polyurethane polymer, an acrylic polymer polymerized in a wax having crosslinkable functionality, and a crosslinking component that is reactive with the wax and at least one of the polyurethane polymer and the acrylic polymer. The polyurethane polymer has a glass transition temperature of 0° C. or less. The acrylic polymer has a glass transition temperature that is at least about 20° C. higher than the glass transition temperature of polyurethane resin. The invention further provides a composite coating having as a primer layer a cured layer of the primer composition of the invention and having at least one topcoat layer.

Abstract: A paint and method are divulged for protecting the silver film of mirrors. The paint in its preferred embodiment includes a metal carboxylate which will contribute metal ions, namely stannous octoate for the contribution of stannous(II) ions in an amount of 0.5% or greater by weight. Alternate methods of the invention utilize an additional coating over the paint, such as an acrylic, epoxy or blend thereof which is UV curable. In another form of the paint, copper octoate is utilized in a minimum amount of 0.5% by weight for contribution of copper(II) ions.

Abstract: The present invention relates to a storage-stable, waterborne, one-component, coating composition, which can be cured at temperatures below 100° C. to provide a stone chip resistant and sandable coating, containing as the binder a polyurethane dispersion A, which after physical drying results in a coating having a pendulum hardness according to DIN 53 157 of >90 s; a polyurethane dispersion B, which after physical drying results in a coating having a pendulum hardness (DIN 53 157) of <90 s; and a melamine resin C, which is preferably highly reactive. The present invention also relates to a process for coating substrates with these coating compositions and to the resulting substrates.

Abstract: Coating composition especially for preparing automotive surfacers, comprising a condensation product A of a carboxyl-containing resin A1 and a hydroxyl-containing resin A2, a curing agent C which becomes active only at an elevated temperature of at least 80° C., and a high molecular mass polyurethane B.

Abstract: A coating composition is based on a polyester mixed with an alkyl-etherified melamine formaldehyde. The coating composition is partially cured in a first stage to provide a thermoformable partially cured, tack-free, non-blocking, coating layer, followed by application to generally a contoured substrate and thermoforming to conform thereto. The contoured partially cured coating layer is then heat cured to form a cured coating. A hydroxyl-terminated polyoxetane containing repeat units derived from oxetane monomers having one or two pendent —CH2—O—(CH2)n-Rf groups, wherein Rf is partially or fully fluorinated, can be esterified with polyester-forming reactants to form a fluorinated polyoxetane-modified polyester.

Abstract: A method for reducing the migration of aldehyde compounds present in packaging material the interior of a package formed by said packaging material, said method comprising: (a) selecting an initial packaging sheet stock used for forming a package having an interior in which an aldehyde sensitive product can be contained, wherein said initial packaging sheet stock has a first surface that forms the interior wall of said formed package, wherein said initial packaging sheet stock has a second surface that forms the exterior wall of said formed package, and wherein said initial packaging sheet stock contains one or more aldehyde compounds that are capable of migrating from said initial packaging sheet stock to said package interior or exterior; (b) preparing an amine-containing composition comprising an amine that chemically reacts with said aldehyde compounds to form a substantially non-migrating compound; and (c) applying said amine-containing composition onto said first surface of said initial packaging sheet

Abstract: The present invention provides for a clear coating composition most suitable for use as a top clear coat in multi-layered OEM or refinish automotive coatings. The coating composition includes isocyanate and melamine components. The isocyanate component includes an aliphatic polyisocyanate. The composition may be formulated as a two-pack or one-pack coating composition, wherein the isocyanate functionalities are blocked with a blocker such as a mono-alcohol.

Abstract: Disclosed are aqueous, storage-stable, crosslinkable polymer compositions comprising: (a) an aqueous dispersion of a an acrylic polymer component containing certain carbonyl-containing functional-groups; (b) a nitrogen-containing compound having at least two carbonyl-reactive nitrogen groups; and (c) optionally, co-solvents, pigments, fillers, dispersants, wetting agents, anti-foam agents, UV absorbers, antioxidants, biocides, and stabilizers. Such compositions are useful as coatings or binders in coating compositions, or as adhesives.

Abstract: A primer or coating composition that includes (A) an aqueous dispersion of a phenolic resin that includes water and a reaction product of a phenolic resin precursor, a modifying agent and, optionally, a multi-hydroxy phenolic compound wherein the modifying agent includes at least one functional moiety that enables the modifying agent to react with the phenolic resin precursor and at least one ionic moiety, and (B) a flexibilizer. According to one embodiment the modifying agent is an aromatic compound. According to another embodiment the ionic moiety of the modifying agent is sulfate, sulfonate, sulfinate, sulfenate or oxysulfonate and the dispersed phenolic resin reaction product has a carbon/sulfur atom ratio of 20:1 to 200:1.

Abstract: A polyoxetane-polyester polymer comprising a hydroxyl terminated polyoxetane prepolymer containing repeat units derived from polymerized oxetane monomers having one or two pendant —CH2—O—(CH2)n—Rf groups wherein Rf is partially or fully fluorinated, where the polyoxetane prepolymer is esterified with polyester forming reactants to form the polyoxetane-polyester polymer, and said polymer is mixed with a reactive lower alkyl etherified melamine-formaldehyde to form a thermoformable coating composition. The coating composition is partially cured in a first stage heating at less than about 180° F. to provide a thermoformable partially cured, tack-free, non-blocking, coating layer, followed by application to generally a contoured substrate and thermoformed to conform thereto. The contoured partially cured coating layer is then heat cured at temperatures above at least 180° F. for time sufficient to form a cured coating.

Abstract: The invention provides a thermosetting aqueous primer composition that includes a polyurethane polymer, an acrylic polymer, and a crosslinking component that is reactive with at least one of the polyurethane polymer and the acrylic polymer. The polyurethane polymer has a glass transition temperature of 0° C. or less. The acrylic polymer has a glass transition temperature that is at least about 20° C. higher than the glass transition temperature of polyurethane resin. The invention further provides a composite coating having as a primer layer a cured layer of the primer composition of the invention and having at least one topcoat layer.

Abstract: An aminoplast-curable film-forming composition is disclosed. The film-forming composition is a crosslinkable composition comprising (1) a material containing a plurality of carbamate and/or urea functional groups and (2) an aminoplast crosslinking agent. The composition provides a coating with improved acid etch resistance, making the coating particularly useful as an automotive clear coat.

Abstract: Described is a liquid, partially alkoxymethylated melamine crosslinker composition having from about 2.6 to about 4.6 moles of combined formaldehyde per mole of melamine, from about 1.4 to about 4.4 moles of alkyl per mole of melamine, from about 1.3 to about 3.4 moles of NH per mole of melamine, a free formaldehyde level of less than about 0.5 weight percent based on 100 percent solids, and an N-methylol level of less than about 6.0 weight percent; processes for its preparation; a low formaldehyde emitting curable composition containing the crosslinker; as well as a method of coating a substrate and substrates so coated.