Abstract:
The invention relates to a method for producing coated mineral shaped bodies by applying an aqueous coating agent containing a polymer dispersion serving as a bonding agent and at least one aqueous styrene maleic anhydride copolymer solution. The shaped body is subsequently hardened and the coating agent is dried. The invention is characterized in that the at least one aqueous styrene maleic anhydride copolymer solution is added to the polymer dispersion after completion of the polymerization. The shaped bodies coated in such a manner exhibit an improved efflorescence behavior. The method is particularly suited for coating roofing tiles and fibrated concrete slabs.
Abstract:
The present invention provides compositions comprising a graphite, binder precursor and low polarity solvent that upon hardening form layers of an electrically conductive material. The compositions of the present invention are sprayable by an internally charged electrostatic sprayer.
Abstract:
Processes for coating metal or polymeric substrates are provided which include the steps of: (a) applying a liquid basecoating composition to a surface of the metal substrate; (b) applying a first infrared radiation at a power density of 30 kilowatts per meter squared or less and a first air simultaneously to the basecoating composition for a first period of at least about 30 seconds, a first velocity of the air at the surface of the basecoating composition being about 4 meters per second or less, a first temperature of the metal substrate being increased at a first rate ranging from about 0.05° C. per second to about 0.3° C. per second to achieve a first peak metal temperature ranging from about 30° C. to about 60° C., such that a pre-dried basecoat is formed upon the surface of the metal substrate; (c) applying a second infrared radiation and a second air simultaneously to the basecoating composition for a second period of at least about 15 seconds, a second velocity of the air at the surface of the basecoating composition being about 4 meters per second or less, a second temperature of the metal substrate being increased at a second rate ranging from about 0.4° C. per second to about 1.2° C. per second to achieve a second peak metal temperature of the substrate ranging from about 60° C. to about 80° C., such that a dried basecoat is formed upon the surface of the metal substrate; and (d) applying a powder topcoating composition over the dried basecoat.
Abstract:
In a strip-shaped mould for producing surface materials, in particular surfaces of melamine resin in the production of laminate panels, with a structured surface, a flexible strip (10) of paper or foil is provided with a layer (12) having a separating action in relation to the surface material, with the formation of slightly cross-linked regions, and a three dimensional shaped structure consisting of UV-hardening printing inks is applied thereto.
Abstract:
This invention relates to a process for hydrophilic treatment of an aluminum material comprising a step for priming in which a primer containing the nitrate or related compound of a metal selected from aluminum, zirconium, cerium, chromium, and iron is applied to the surface of an aluminum material so that the amount of adhering metal becomes 1.0 mM/m2 or more and then the primer is baked at the specified temperature and a step for coating in which a hydrophilic coating is applied to the primer film formed in said step for priming and then baked at the specified temperature. This invention also relates to primers and hydrophilic coatings useful for the aforementioned treatments. It is possible to form a hydrophilic film, with pronounced hyrdophilicity particularly after press forming, on the surface of an aluminum material.
Abstract translation:本发明涉及一种用于亲水处理铝材料的方法,该方法包括一个起始步骤,其中将含有选自铝,锆,铈,铬和铁的金属的硝酸盐或相关化合物的底漆施加到 铝材料,使得附着金属的量变为1.0mM / m 2以上,然后将底漆在规定的温度下进行烘烤,将涂布的步骤涂布在所述填充步骤中形成的底漆膜上,然后涂布 在指定温度下烘烤。 本发明还涉及可用于上述处理的底漆和亲水涂层。 可以在铝材的表面上形成亲水性膜,特别是压制成型后具有显着的亲嗜性。
Abstract:
The method of applying plastic material or layers containing plastic material onto metallic components is effected such that a) the components are brought in contact with a solution or dispersion containing 5 to 50 wt-% organic polymer, b) the solution or dispersion is dried on, c) the components are brought in contact with a qualitatively substantially identical solution or dispersion in accordance with stage a), which only contains 0.5 to 5 wt-% organic polymer, and d) are finally dried. Preferably, the solution or dispersion contains a chromium(VI) and/or chromium(III) compound and/or adhesion-promoting pigments, flow-control agents and/or defoaming agents (additives). Further preferred aspects of the invention consist in that the components are brought in contact with a solution or dispersion having a temperature of 5 to 40° C., drying on in accordance with stage b) is effected at a temperature in the range from 40 to 60° C., and the final drying in accordance with stage d) is effected at an elevated temperature up to 200° C. The outstanding advantage of the invention lies in the use of the method for the pretreatment of the components for the subsequent powder coating.
Abstract:
The present invention is to provide a repair coating process, the repair coating process consists of grinding the part of an intermediate coating surface to be repaired and then performing a repair coating of the ground part with a thermocurable organic solvent type repair paint (F) containing a neutralized product of a hydroxyl group-containing resin having an acid value of 5-100 mgKOH/g and a crosslinking agent in forming multilayer coating films by coating an electro-deposition paint (A) and an intermediate paint (B) and curing them by heating, then, after performing a repair coating on the intermediate coating surface, successively coating wet-on-wet a white type water base coat (C) a pearly base coat (D) and a clear coat (E), and then curing by crosslinking the films of the above-mentioned coats (C), (D) and (E) simultaneously through heating.
Abstract:
A glass fiber wallcovering is made by sequential application of hydrophilic and hydrophobic agents to selectively create an image for painted effects.
Abstract:
An on-line method of forming a multilayered coating on a sheet of fibrous or foam insulation, includes: applying a first coating layer of a first coating composition directly to a first major surface of the insulation sheet; heating an exposed major surface of the first coating layer to stabilize the coating composition at the exposed major surface of the first coating layer so that the first coating layer remains an essentially discrete layer when a second coating layer is applied to the exposed major surface of the first coating layer and to only partially cure the coating composition at the exposed major surface of the coating composition so that a second coating layer applied to the exposed major surface of the first coating layer will readily bond to the first coating layer; applying a second coating layer of a second coating composition directly to the exposed major surface of the first coating layer subsequent to heating the exposed major surface of the first coating layer; and heating the insulation sheet and the first and second coating layers, subsequent to the application of the second coating layer, until the first and second coating layers are substantially dried and cured.
Abstract:
A method for controlling uniformity of applied film thickness of clear protective coatings by means of a color-dissipatable dye additive which dissipates within a reasonable timeframe, generally from hours to a few days, leaving the applied film with no evidence of its use during the application phase. The color additives temporarily impart color to an otherwise clear coating, and subsequently dissipate over a short period of time. An embodiment of this technology includes the addition of a compatibilizer carrier solution to increase the ease of measuring the dye for addition to the clear coating.