摘要:
A method is described for the coating of running strands or webs with a thermoplastic protective layer. The successive steps comprise the application of a primer and the hot air current drying and curing of same supplemented by inductive heating. The temperature is next raised in two successive stages by inductive type heaters, the later stage while the strand or web is vertically traversing the length of a continuously replenished dense cylindrical bed of powdered vinyl polymer or the like. The replenishment as well as cooling of the powder is accomplished through a recirculatory arrangement powered by air nozzles. Alternate coating materials are proposed including polyolefins containing compounds of metal.
摘要:
The invention relates to composite particles, coatings, and coated articles. An article is provided at least partially covered with a coating defining a slippery surface. The coating comprises a layer of particulate material bound to the article and a substantially immobilised lubricant at least partially covering and penetrating into the layer of composite particulate material. The composite particulate material comprises a carrier particle at least partially coated with a hydrophobic material. A further article is provided at least partially covered with a coating comprising a layer of the composite particulate material bound to said article. This is useful in preparation of the article having a coating defining a slippery surface. Methods of preparing the coating and the articles are also provided.
摘要:
A restoration system which is used to restore brick, glass, concrete, metal, plexiglass, and stone to their original color and preserve the materials. The restoration system includes a treatment composition overlay including a first-dry-part, a second-dry-part, a first-liquid-part, and a second-liquid-part. The first-dry-part is an acrylic based dry polymer. The second-dry-part is an acrylic based dry hardener. The first-liquid-part includes polymeric resin, water, acrylic polymer, and sodium. The second-liquid-part includes acrylic resin, water acrylic polymer, aqueous ammonia, and additives. The first-dry-part, the second-dry-part, the first-liquid-part, and the second-liquid-part are configured to be mixed to create a treatment composition overlay for restoring and preserving at least one surface.
摘要:
A method for forming a multilayer coating film includes applying an aqueous first base coating composition (A) onto a cured electrodeposition coating film, applying an aqueous second base coating composition (B) without preheating, performing preheating, further applying a clear coating composition (C), and simultaneously heat-curing the first base coating film, the second base coating film, and the clear coating film. The aqueous first base coating composition contains a specific aqueous polyester resin, a specific aqueous acrylic resin, a specific aqueous urethane resin and a melamine resin. A breaking energy of a coating film formed of the aqueous first base coating composition and a peel strength between the coating film and the cured electrodeposition coating film are controlled to specific values.
摘要:
An optically variable device may be manufactured by aligning magnetic flakes on a surface of an adhesive layer by applying the flakes onto the adhesive layer surface in presence of a magnetic field, and curing the adhesive layer having magnetic flakes adhered to the adhesive layer. When cured, the adhesive layer holds the magnetic flakes oriented, enabling subsequent encapsulation of the oriented magnetic flakes in a coating layer on the adhesive layer, without a substantial loss of orientation of the magnetic flakes.
摘要:
Methods and systems for coating metal substrates are provided. The methods and systems include sequential application of low flow and high flow powder coatings followed by a single heating step to provide a cured coating. The methods and systems include a marker that allows coating uniformity to be monitored and assessed during application. The described methods provide coatings with optimal surface smoothness and edge coverage.
摘要:
A method for coating at least regions of a medical implant includes providing a medical implant having a surface to be coated, and immersing the surface of the medical implant into a liquid including at least one pharmaceutically active substance, whereby the liquid is transferred to the surface of the medical implant due to the immersing. The method also includes pulling the surface of the medical implant out of the liquid, whereby part of the liquid remains adhering to the surface of the medical implant.
摘要:
The present invention relates to a method for coating a surface of a nonferrous metallic substrate, with a bilayer polymeric coating, said method comprising: 1) Subjecting the surface of a nonferrous metal object to a chemical washing; 2) Heating the article whose surface will be coated, to a temperature higher than the melting temperature of the selected polymer and lower than the ignition temperature thereof; 3) Apply the first layer, with a size of less than or equal to 20 mesh particle, constantly keeping the substrate temperature; 4) Applying a second layer of plastic coating on the first coating layer, after the first layer has adhered to the substrate surface, where the second layer can be the same or different polymer, with a particle size equal to or less 20 mesh; 5) Heating further the set of substrate and bilayer coating to a temperature higher than the selected at step 2, but lower than the ignition temperature of the coating and 6) Cooling the thus coated substrate to room temperature. The product obtained by the described process, provides a smooth, nonporous surface, a high adhesion of the coating to the substrate and covering all exposed to the chemical treatment of the first stage surface is ensured, so that the resulting coated substrate is suitable for use in the food industry.
摘要:
A composite structure includes a substrate, a first coating layer arranged on the substrate, and a second coating layer arranged on the first coating layer such that the first coating layer is between the substrate and the second coating layer. The composite structure may further include a third coating layer and an aggregate layer arranged on the second coating layer. A method of forming a composite structure includes applying a coating mixture by spray or by rolling, brushing or squeegeeing to a substrate, partially dissolving the substrate, thereby allowing the coating mixture to partially mix with the substrate to form a first coating layer on the substrate; and forming a second coating layer from the coating compound on the first coating layer.