Abstract:
Method for producing a multifunctional material includes thermally treating a substrate having a surface layer formed of titanium, titanium oxide, a titanium alloy, or a titanium alloy oxide so that the temperature of the surface layer is raised to 600° C. or higher, to thereby provide, in the interior of the surface layer, a second layer formed of forest microcolumns of titanium oxide or a titanium alloy oxide; and subsequently cutting the second layer in parallel with the surface layer, to yield a material including the substrate and a layer formed of titanium-oxide- or titanium-alloy-oxide-formed forest microcolumns exposed on at least a portion of the substrate, as well as a material including a thin film, numerous continuous small-width with protrusions thereon, and forest microcolumns formed on the protrusions.
Abstract:
A coherent material is formed on a substrate (10) by providing a precursor suspension (14) in which particulates are suspended in a carrier fluid, and directing the precursor suspension (14) at the substrate (10) from a first source (12). Generally contemporaneously with application of the deposited precursor suspension (14) to the surface, hot gases, e.g. hot gases produced by a flame (16), are directed at the substrate (10) from a remote second source (18) to fuse the particulates into the coherent material.
Abstract:
The invention relates to a process and to the corresponding apparatus for the production of strongly adherent coatings on an inorganic or organic substrate, wherein in a first step a) a low-temperature plasma, a corona discharge or a flame is caused to act on the inorganic or organic substrate, in a second step b) one or more photoinitiators or mixtures of photoinitiators with monomers, containing at least one ethylenically unsaturated group, or solutions, suspensions or emulsions of the afore-mentioned substances, are applied at normal pressure to the inorganic or organic substrate, in a third step c) using suitable methods those afore-mentioned substances are dried and/or irradiated with electromagnetic waves and, optionally, in a fourth step d) on the substrate so pretreated is deposited a metal, half-metal or metal oxide.
Abstract:
A printhead integrated circuit comprising a drive circuitry and a plurality of nozzles is provided. Each nozzle comprises a chamber for holding ink to be ejected, the chamber having an opening defined in a roof structure; and a thermal bend actuator for ejecting droplets of ink from the chamber through the opening. The bend actuator is configured as a cantilever with one end of the cantilever anchored to a base and the opposite end supporting a paddle. The actuator has a deflector section constructed of a material having a high coefficient of thermal expansion and a barrier layer constructed of a dielectric material having low thermal conductivity. A supply of current from the drive circuitry to the deflector section causes differential thermal expansion between the deflector section and the barrier layer, such that the actuator bends and the paddle ejects a droplet of ink from the nozzle.
Abstract:
An inkjet printhead chip includes a substrate that incorporates drive circuitry. A plurality of nozzle arrangements is positioned on the substrate. Each nozzle arrangement includes a nozzle chamber wall and a roof wall positioned on the substrate to define a nozzle chamber, the roof wall defining an ink ejection port in fluid communication with the nozzle chamber. The nozzles are densely packed on the printhead substrate for greater resolution and print quality. The nozzles are arranged in rows with each row offset relative to its adjacent rows to reduce the effective nozzle pitch across the printhead. The printhead is high speed and energy efficient by ejecting relatively low mass drops at a high frequency.
Abstract:
An ink jet print head chip that includes a substrate that defines a plurality of ink inlet channels. A plurality of nozzle chamber structures is on the substrate to define nozzle chambers in fluid communication with the ink inlet channels and an ink ejection nozzle in fluid communication with each nozzle chamber. Drive transistor circuitry is positioned on the substrate and is connectable to data and power supplies. A plurality of elongate actuators are each fast with the substrate at one end to receive actuating signals from the drive transistor circuitry to be displaceable towards and away from the substrate. A plurality of ink ejection members is fast with respective actuators at opposite ends. Each ink ejection member is positioned in a respective nozzle chamber such that displacement of the respective actuators results in the ejection of a drop of ink from the ink ejection nozzle. The transistor circuitry includes traces that are interposed between each actuator and the substrate and oriented substantially orthogonally to a longitudinal axis of each respective actuator.
Abstract:
A pagewidth color printhead assembly includes an ink distribution arrangement. A plurality of printhead chips is mounted on the ink distribution arrangement to span a print medium feed path. Each printhead chip includes a substrate that defines a plurality of ink supply channels. A plurality of ink-ejecting nozzles is arranged on the substrate in fluid communication with the ink supply channels. The nozzles are arranged in groups, with each group of nozzles being in fluid communication with a respective ink supply channel and the groups of nozzles being arranged in at least three rows, each row of nozzles receiving ink of the same color.
Abstract:
VOC components are retained within a substrate by coating the substrate with a composition to form an ionically crosslinked polymer matrix in a coating. Methods, compositions, coatings and articles that are coated are described.
Abstract:
A coating system comprises a basecoat of an thermosetting asphalt extended, chemically cross linked-urethane/epoxy hybrid basecoat resting on a substrate, preferably a porous substrate such as concrete or wood that off-gas when coated with a thermoplastic material; and a thermoplastic powder coating topcoat overlying at least the base coat. The thermosetting basecoat composition consisting essentially of, in weight percent based on final formulation, and between 10 and 90% of a petroleum asphalt; between 10 and 90%, of a hydroxy-terminated homopolymer; and between 0.1 and 30% of a functional epoxy reactive diluent for reducing the viscosity of the composition; and further up to 5% of a surfactant for improving surface imperfections, up to 5% of an anti-oxidant; and up to 25% of a thickening agent.
Abstract:
A process is provided for making a composite work article suitable for fabricating rigid sheet metal can components. A steel sheet having first and second surfaces is pre-treated to enhance reception and retention of a multi-layer polymer coating on the pre-treated first surface. The multi-layer polymer coating is melt extruded on the pre-treated first surface and beyond opposite lateral edges of the work article to establish overhang portions, then solidified. The multi-layer polymeric coating has a tie polymeric layer contacting the pre-treated first surface, and a finish-surface polymeric layer. The solidified overhang portions are trimmed, and the extruded multi-layer polymeric coating is subjected to finish-treatment, involving heating the extruded multi-layer polymeric coating at least to a melt temperature thereof, then cooling the multi-layer polymeric coating through glass-transition temperature thereof at a sufficiently rapid rate to establish amorphous non-directional characteristics in the polymeric coating.