Abstract:
The present invention provides: a process for formation of a coating film on a plastic material, which process enables formation of the coating film with good productivity wherein the coating film is excellent in the adhesion, the moisture-resisting adhesion, and the gasohol resistance, and has good appearance; and a coated article. The process for formation of a coating film on a plastic material is a process for formation of a coating film, which process comprises the steps of: coating the plastic material with a specific aqueous primer coating composition; and thereafter drying the resultant primer coating film in such a manner that its nonvolatile content will not be less than 70 weight %; and thereafter overcoating the primer coating film with a specific aqueous base paint composition; and thereafter drying the resultant base coating film in such a manner that its nonvolatile content will not be less than 60 weight %; and thereafter overcoating the base coating film with a two-component clear paint; and thereafter baking the resultant three-layered coating film onto the plastic material.
Abstract:
An aqueous immersion bath contains a water-soluble peroxide compound and a transition metal salt and is used to activate the surface of a thermoplastic olefin prior to the application of a coating thereon. After immersion of the thermoplastic olefin material in the aqueous immersion bath, an improved adhesion between the coating and the surface of the thermoplastic olefin material is obtained.
Abstract:
This invention relates to methods for preparing articles having modified surfaces. Preferably the articles are medical devices. Preferably the surfaces are elastomeric. Preferably the articles having modified surfaces are useful for immobilizing biologically active agents on the surfaces.
Abstract:
A molding station for molding a colored product of a synthetic resin mixed with a colorant and a coating station for applying a colored clear coat to the surface of the molded colored product are disposed adjacent to each other for highly efficient production of colored clear coated, molded colored products. The molded colored product is charged directly from the molding station into the coating station. The hue of the molded colored product and the hue of the colored clear coat are seen as mixed to the eye. A plurality of hues may be available for each of the colorant and the colored clear coat, so that a variety of hues can be achieved on colored products by a combination of hues of the colorant and the colored clear coat without maintaining a large stock or inventory of different colorants or colored clear coats. The facility required to color the above products is relatively small in size, and the coloring processes are composed of a relatively small number of steps in comparison to conventional apparatus and methods.
Abstract:
A curable coating composition for preparing an anti-static coating contains from about 50% by weight to about 90% by weight of a dispersion of colloidal silica and a curable methylsilsesquioxane in a lower (C.sub.1 -C.sub.5) alkanol, and from about 10% by weight to about 50% by weight of an aminofunctional silane component.
Abstract:
Process for reducing the friction coefficient between water, and, surfaces of fabricated bodies made from polymeric materials, and for increasing the water repellency of said surfaces, which process comprises treating the concerned surface with a corrosive solution, and coating it with a thin layer of fluorinated polymer.
Abstract:
A film comprising alternating layers of polyvinylidene chloride resin and a solvent barrier such as polyvinyl alcohol provides superior barrier properties. Barrier and mechanical properties are enhanced when formulation additives are present at customary levels only in the outermost layers.
Abstract:
In certain aspects, a composition includes a monomer binder, a plurality of silica nanoparticles, a surface energy reducing additive, and a blend of a high polarity solvent and a low polarity solvent. The high polarity solvent has a dipole moment of about 1.2 or greater, and the low polarity solvent has a dipole moment of about 0.7 or less. In certain aspects, a coated substrate includes a substrate and a coating over the substrate. The substrate is selected from a group consisting of glass, polycarbonate, polyacrylate, and polyethylene terepthalate. The coating includes a polymer binder, a plurality of nanoparticles, and a surface energy reducing additive. The coated substrate has a transparency of at least about 80% light transmission at one or more wavelengths in a range of 380 nm to 740 nm.
Abstract:
A functional film 1 according to an embodiment includes: a substrate (10) containing an acetyl cellulose resin; a primer layer (20) containing a filler (40) and disposed on the substrate (10); and a functional layer (30) containing the filler (40) and disposed on the primer layer (20). The substrate (10) has a permeation layer (12) formed by permeation of the resin contained in the primer layer (20) into part of the substrate (10). The permeation layer (12) has a thickness of 0.1 μm or more and 3.5 μm or less. The primer layer (20) has a thickness of 0.1 μm or more and 1.0 μm or less. The filler (40) is silica particles having an average particle size of 20 nm or more and 80 nm or less. The filler (40) in the primer layer (20) has a density of ⅓ or more and ¾ or less of the density of the filler (40) in the functional layer (30). The primer layer (20) and the functional layer (30) each contain a resin. The resin component of the primer layer (20) is the same as the resin component of the functional layer 30.