Abstract:
A waterborne base coat having a special-effect color and which contains aqueous microgel as binder, 0.5 to 2 wt.-% of poly(meth)acrylic acid thickener and 2 to 7 wt.-% of non-ionically emulsified EVA copolymer wax with a drop point of the wax portion of 80 to 110° C., the wt.-% in each case calculated as solids and relative to the solids content of the waterborne base coat.
Abstract:
Composite materials with a polymer matrix, low resistivity graphite coated fillers having exfoliated and pulverized graphite platelets coated on an outer surface of high resistivity fillers, are provided. The fillers can be fibers or particles. The composite materials incorporating the graphite coated fillers as reinforcements can be electrostatically painted without using a conductive primer on the polymer matrix.
Abstract:
A method for coating glass, and specifically for manufacturing perfluoroalkoxy copolymer coated glass and tetrafluoroethylene perfluoromethyl vinyl ether copolymer coated glass. The method includes placing a glass substrate on an electrically grounded support and cleaning it with a solvent to remove impurities and prepare the surface of the substrate to be coated. The method also includes coating the surface with a primer and uniformly applying an electro-conductive enhance to the primer so that the surface of the glass substrate is wet, but not uneven. The method includes powder spraying periluoroalkoxy copolymer or tetrafluoroethylene perfluoromethyl vinyl ether copolymer on the electro-conductive enhancer while the enhancer is still wet. The method also includes securing the perfluoromethyl vinyl ether copolymer to the glass substrate by evaporating the electro-conductive enhance.
Abstract:
An apparatus for and method of depositing a polymeric film on a substrate (5), the apparatus comprising: a delivery unit (7, 8) for delivering an aerosol spray comprising aerosol droplets of a liquid precursor comprising a polymeric phase to the substrate, the polymeric phase comprising a polymeric material and at least one solvent; a heating unit (15) for at least heating an environment such as at least partially to evaporate the at least one solvent of the polymeric phase prior to the aerosol droplets depositing on the substrate; and an electrostatic field generation unit (9) for generating an electrostatic field between the delivery unit and the substrate, and electrostatically charging the aerosol droplets such that the aerosol droplets are electrostatically attracted to the substrate.
Abstract:
Method for the thermal treatment of powder paints applied to substrates for the preparation of a coating on the substrates using IR radiation, wherein the powder paint which is applied to the substrate is radiated with middle- and/or long-wave IR radiation and the powder paint contains additives with the characteristic of absorbing middle- and/or long-wave IR radiation. Optionally, the powder paint which is thermally treated with middle- and/or long-wave IR radiation is subjected to a further treatment with electron or UV radiation.
Abstract:
Methods and systems for coating at least a portion of a medical device (e.g., a stent structure) include providing a plurality of coating particles (e.g., monodisperse coating particles) in a defined volume. For example, the particles may be provided using one or more nozzle structures, wherein each nozzle structure includes at least one opening terminating at a dispensing end. The plurality of coating particles may be provided in the defined volume by dispensing a plurality of microdroplets having an electrical charge associated therewith from the dispensing ends of the one or more nozzle structures through use of a nonuniform electrical field between the dispensing ends and the medical device. Electrical charge is concentrated on the particle as the microdroplet evaporates. With a plurality of coating particles provided in the defined volume, such particles can be moved towards at least one surface of the medical device to form a coating thereon (e.g., using an electric field and/or a thermophoretic effect).
Abstract:
A method and manufacturing apparatus for forming one or several material layers inside a basic tube, which basic tube is used in the manufacture of an optical fiber preform. The surface inside the basic tube is electrically charged by guiding a first electrically charged gas flow inside the basic tube, whereafter a second electrically charged gas flow is guided into the basic tube. The gas flow contains material particles and the sequentially alternating first gas flow and second gas flow have opposite charges.
Abstract:
An improved apparatus is provided for curing powdered coatings on the face of porous wood products, such as medium density fiberboard (MDF), wherein a pair of inclined infrared catalytic heaters are used to apply heat directly onto the side edges of the board. In addition, catalytic heaters that are normally used to heat and cure the face surface of the board are moved father back to reduce their effectiveness and to limit out-gassing of entrapped air from the inner low density core of the board. This arrangement also allows the coating to cure at the side edges of the board at approximately the same rate as the face of the board, promoting a more uniform curing of the powder coating.
Abstract:
An apparatus and method for coating glass, and specifically to perfluoroalkoxy copolymer coated glass, tetrafluoroethylene perfluoromethyl vinyl ether copolymer coated glass and a method for manufacturing same. A glass substrate is placed on an electrically grounded support and cleaned with a solvent to remove impurities and prepare the surface of the substrate to be coated. The surface is coated with a primer and an electro-conductive enhancer is uniformly applied to the primer so that the surface of the glass substrate is wet, but not uneven. The perfluoroalkoxy copolymer or tetrafluoroethylene perfluoromethyl vinyl ether copolymer is powder sprayed on the electro-conductive enhancer while the enhancer is still wet. The perfluoroalkoxy copolymer or tetrafluoroethylene perfluoromethyl vinyl ether copolymer is secured to the glass substrate by evaporating the electro-conductive enhancer.
Abstract:
A film is formed on a planar surface by applying a granular layer on the planar surface by using electrostatic forces, and then finishing the granular layer to form the film. A converting line may be rebuilt to have devices employing this method. A multilayer sheet-like product comprising a film layer may be produced.