Abstract:
Production of strong lightweight membrane structure by applying a thin reflective coating such as aluminum to a rotating cylinder, applying a mesh material such as nylon over the aluminum coating, coating the mesh overlying the aluminum with a polymerizing material such as a para-xylylene monomer gas to polymerize as a film bound to the mesh and the aluminum, and applying an emissivity increasing material such as chromium and silicon monoxide to the polymer film to disperse such material colloidally into the growing polymer film, or applying such material to the final polymer film, and removing the resulting membrane structure from the cylinder. Alternatively, such membrane structure can be formed by etching a substrate in the form of an organic film such as a polyimide, or a metal foil, to remove material from the substrate and reduce its thickness, applying a thin reflective coating such as aluminum on one side of the substrate and applying an emissivity increasing coating such as chromium and silicon monoxide on the reverse side of the substrate.
Abstract:
A method of absorbing resin into part of a panel of particleboard to provide local strength increases in that part. The method comprises subjecting the part to an electric field, immersing the panel in the resin; and then resubjecting the panel to the electric field to cure the resin. A particleboard panel is also disclosed. The panel has a main body with a specific gravity in the range 0.2 to 0.5 but at least one area on its periphery has a specific gravity in the range 0.7 to 1.0. The one area is impregnated with a synthetic resin. The panel is particularly useful in door production as it is strong but cheap.
Abstract:
A novel process for applying cured thermoset resinous coatings to various kinds of substrates and in particular, to thin metal substrates, is disclosed. Finely divided thermosettable resinous particles containing a solid catalyst are introduced into a region of a plasma arc generated flame having a temperature greater than the melting point of said resin. The residence time of said resinous particles in the vicinity of said flame is maintained for a period sufficient to liquify substantially said particles and to initiate polymerization of the thermosettable resin particles. The liquified resin particles are propelled towards a substrate with sufficient velocity to cause said liquified resinous particles to impact with sufficient force to cause said particles to flow upon said substrate to coat same with a continuous, thin coating. The coated substrate is then cooled at a rate sufficiently slow to permit said coating to cure. The plasma flame must be located sufficiently near the substrate so that the resinous particles possess sufficient thermal and kinetic energy to flow into a thin coating retaining sufficient energy therein to continue curing to a thermoset state without addition of energy. The kinetic energy of the particle facilitates formation of a thin, uniform coating and creates additional thermal energy upon impact with said substrate.
Abstract:
A method of coating a substrate with a white molecular coating. A colloidal based primer is prepared having on a mass basis between 30-40% suspensions of fine-sized spherical particles of nonporous silica dispersed in liquid phase. The primer is applied to the substrate and allowed to dry. A molecular adsorber coating is prepared by treating a zeolite with a colloidal silica binder thereby providing a treated pigment having a mass ratio of the colloidal silica to the zeolite is in a range of 2.0 to 2.6, then processing the treated pigment into a powder thereby facilitating sprayability and then mixing said treated zeolite with a colloidal solution containing silica. The coating is then sprayed onto the primer and allowed to dry. The resultant coating provides adequate bond stability and strength necessary for flight applications within an environment for vacuum of space applications.
Abstract:
An optically consistent transparent conductive film and a preparation method thereof solve the problems of obvious etching marks, poor optical stability, easy corrosion of nanomaterials, and migration of metal ions of the metal nanowire transparent conductive film. The addition of nanoparticles with a matchable refractive index and a high corrosion resistance, the addition of an optical compensation layer, the use of a substrate with an anti-glare layer and other such means can solve the problem of obvious post-treatment etching marks of metal nanowire conductive films. A dense full-plate conductive transparent conductive film with improved corrosion resistance can be achieved by using an electric compensation layer. An ultraviolet stabilizer is added into a protective solution to improve the optical stability of the conductive film. An antioxidant, a dendrimer, and a complexing agent in the protective solution solve the problem of easy corrosion of nanomaterials and migration of metal ions.
Abstract:
Described are medical devices including expandable tubular bodies configured to be implanted into a lumen, wherein the outer surface of the expandable tubular bodies are coupled to a polymer(s).
Abstract:
A method of manufacturing a window includes aging a window substrate for 48 hours to 72 hours, subjecting the aged window substrate to a plasma, and forming an anti-fingerprint layer on the plasma-treated window substrate.
Abstract:
Systems and methods for monitoring the quality of a surface treatment applied to an article in a manufacturing process are provided. A surface treatment may be applied to at least a portion of an article. A thermal profile of the article may be obtained and used to determine temperature indications of different regions of the article to which the surface treatment has been applied. A standard model of the article may be obtained that includes model regions having model temperature ranges. The temperature indications of the article can be compared with the model temperature ranges to determine if any temperature indications are outside of a corresponding model temperature range. The article may be a shoe part. The surface treatments may include the application of heat, plasma, dye, paint, primer, and/or the application of other materials, substances, and/or processes.
Abstract:
For producing a dome-shaped element (2) provided with thermal protection for a solid propellant rocket engine, a coupling annular body (4) is arranged in a mold (5) and has a surface (20) that is clean and activated, by an atmospheric-pressure plasma treatment, before depositing a primer layer (26) and an adhesive layer (27) on the surface (20); ablative material is then automatically applied to the adhesive layer and to an area (17) of the mold (5) so as to form a series of superimposed layers (30).
Abstract:
A method for coating a surface of an electrically non-conductive substrate with powder coatings, the method comprising the following steps: providing a substrate to be coated, pre-heating the substrate to be coated to a temperature of 40 to 140° C. in order to decrease the surface resistance of the substrate to less than 1012 ohms, preferably to within the range of 1010 to less than 1012 ohms, electrostatically coating the surface with powder coating in a single layer, which powder coating comprises a reactive system which, in particular, cures into a thermoset, curing the powder coating layer at a temperature of 170° C. or less.