Abstract:
A method for establishing a calibrating standard for wafer inspection includes depositing solid ionized particles of a known size range with an aerosol onto a wafer. The method also includes depositing particles onto a wafer in a deposition chamber by using an aerosol stream and the solid particles suspended in a gas; ionizing the aerosol stream with a negative or positive charge polarity or both by passing the aerosol stream through a non-radioactive ionizer to produce charged particles and supplying such aerosol stream to the deposition chamber.
Abstract:
A method of powder coating application in which two thermo set powder resins can be applied to conductive substrates, non-conductive substrates or combinations of both within a single powder-coating booth and then subsequently co-cured. The substrates are cleaned, pre-treated if metal, dried, pre-heated and the first and second application of thermo set powder is done and then the powders are co-cured with heat.
Abstract:
Disclosed are methods for coating a substrate. These methods include: (a) vertically orienting the substrate between a vertically oriented backstop and a spray gun; (b) at least partially coating the vertically oriented substrate with a substantially 100% solids, radiation curable liquid coating composition by passing the composition through the spray gun wherein the composition is atomized; whereby a portion of the atomized coating composition deposits on the vertically oriented substrate and a portion of the atomized coating composition deposits on the vertically oriented backstop; (c) exposing the coated substrate to ionizing radiation and/or actinic radiation to cure the coating composition deposited thereon; and (d) removing and reusing at least a portion of the coating composition deposited on the vertically oriented backstop. Related coating systems are also disclosed.
Abstract:
The present invention provides smooth and even ultraviolet (UV) cured powder coatings for wood comprising one, two or three layers of one or more waterborne stains, or clear or tinted waterborne basecoat coatings and one or more topcoat layers of clear or tinted clear powder coatings made from one or more than one free radical UV curing resin, one or more than one photoinitiator, and one or more than one post-blend dry flow additive, such as fumed alumina. The coatings of the present invention have a natural wood appearance, are foam free and fully coat substrates at powder coating thicknesses ranging from 0.5 mil (12.7 μm) to 2.0 mil (50.8 μm). Accordingly, the coatings will fully and evenly coat uneven, beveled and/or routered substrate surfaces, including open grain natural wood substrates, such as oak. In addition, the present invention provides a method for making coatings comprising applying one or more waterborne stain to the wood to form a stain layer, drying or curing the said stain layer, sanding or grinding to de-nibb the said stain layer, applying clear or tinted UV curing coating powder to the stained substrate, flowing out the applied coating powder to form a continuous film, and UV curing the film formed from the powder.
Abstract:
Uniform portions of fine powders are deposited on a substrate by electrostatic attraction in which the charge of the electric field and polarity of the charged particles are varied repeatedly to form a buildup of powder on the carrier surface.
Abstract:
Electrospray methods and systems for coating of objects (e.g., medical devices such as a stent structure) with selected types of coatings (e.g., open matrix coating and closed film coating)
Abstract:
The present invention is a method for zinc plating a meter set assembly used in gas delivery applications, wherein a zinc plating is applied to a steel substrate formed in the configuration of a meter bar. Once the zinc plating is applied through electrodeposition, the meter set assembly is then outgassed in an oven as by curing at 425°-475° F. for 20-35 minutes to drive away any gasses that may be trapped within the zinc coating. Following the outgassing process, a polyester powder coating is applied to the external surfaces of the meter bar.
Abstract:
A method for finishing a manufactured article by powder painting, comprising the step of applying, on a surface to be decorated of the manufactured article, one decorative layer obtained by means of the transfer by controlled migration of powder particles which originate from a graphic matrix arranged in front of the surface to be decorated and designed to adhere thereto; the transfer and adhesion steps being provided by a first electostatic field which comprises lines of force incident at right angles to the surface to be decorated, the manufactured article acting fully or partly as reference electrode for the first electrostatic field, so as to produce a condition of solid contact between the electrode and the surface to be decorated.
Abstract:
A powder coating method that provides enhanced finish characteristics to a powder coated object. The object to be powder coated is vibrated such that the powder readily flows on the surface of the object. The improved flow of the applied powder results in a powder coated object having enhanced, or otherwise superior finish characteristics. The method works with existing powder coating methods, systems, and materials and the vibration may be applied before, during, and/or after the powder is applied, i.e., during heating and/or curing. Additionally, the vibrations may be produced by a variety of means and/or methods including direct mechanical contact (i.e., a vibrating plate), indirect mechanical contact (i.e., a vibrating hang wire), and/or indirect non-contact (i.e., acoustic) methods.