1933 results about "Anti-fog" patented technology

A coating composition is disclosed which comprises an aqueous polymeric matrix, a hydrophilic polymer, a colloidal metal oxide and a crosslinker. The coating composition when applied on medical devices is hydrophilic, shows improved lubricity, abrasion resistance and substrate adhesion on metallic or plastic substrates. The coating also shows improved water sheeting thus providing the coated substrates with anti-fog properties. The coating absorbs aqueous dye or stain solutions making the substrate suitable for printing.

A device is configured for white balancing a medical videoscopic camera system prior to videoscopic medical procedures, as well as optionally simultaneously or non-simultaneously applying a fog-prohibiting agent to the distal lens of a medical videoscope such as an endoscope or laparoscope. The device combines a white balancing mechanism, protective mechanism, and defogging mechanism in one simple easy to use device.

A disposable anti-fog airway adapter for use with a mainstream respiratory gas analyzer which provides a measurement of a patient's inhaled and exhaled gases. The airway adapter includes windows that are constructed of a thin, low heat capacity plastic that rapidly equilibrates to the temperature of the warm moist gases in the patient breathing circuit. In addition, the inside of the windows is also coated with an anti-fog surfactant either by laminating an anti-fog film with the window plastic prior to attaching the window to the airway adapter body or by first attaching the window to the airway adapter body and then applying the surfactant to the airway adapter after the window film is bonded in place so that the surfactant coats the entire inside of the adapter. The surfactant functions to increase the critical wetting tension of the surface it covers so that water on the window spreads into a uniform thin layer which does not absorb very much infrared energy and thus does not significantly reduce the signal strength. "Instant on" operation is accomplished because no heater and the like is necessary to warm up the windows to maintain them at an elevated temperature to prevent fogging. Numerous techniques are also provided for adhering the windows to the airway adapter body so that a substantially airtight seal may be obtained.

An antifogging window plate has a transparent film and a base both made of thermoplastic resins. Conductive lines and electrodes are printed using a conductive paste on one side of the film, which is then bonded to the base. One portion of each electrode is exposed as a terminal portion to be connected to an electric contact member. The window plate is made by injection molding with the surface of the film opposite from the printed surface being in contact with the cavity wall of the mold, so that the integration of the film with the base is effected simultaneously with the forming of base. Each contact member is subsequently fitted in an injection-molded void facing the terminal portion, or is secured in place at the same time as the injection molding.

Anti-fogging system for an endoscope including an endoscope having an outer housing, an imaging arrangement, and a distal window. A filter lens is located at the distal window, with the filter lens allowing a first portion of electromagnetic light to pass therethrough while absorbing a second portion of electromagnetic light in order to heat the filter lens.

The energy-free refrigeration door of the present application provides a way to control condensation when the door of a refrigeration unit is opened by providing thermal insulation to the door with glass panels which have a low emissivity coating. The door includes a door frame housing and an insulating glass unit comprising inner, middle and outer sheets of glass. A first sealant assembly disposed around the periphery of the inner and middle sheets of glass forms a first chamber between the inner and middle sheets of glass. A second sealant assembly disposed around the periphery of the middle and outer sheets of glass forms a second chamber between the middle and outer sheets of glass. A gas, such as krypton, air, or argon is held in the first and second chambers. The outer sheet of glass and inner sheet of glass each have an unexposed surface that faces the middle sheet of glass. A low emissivity coating is disposed on the unexposed surfaces of the inner and outer sheets of glass so that the glass door as a whole avoids formation of condensation on the outer surface of the outer sheet of the glass door, without the application of electricity to heat the door, while also providing the desired evaporation rate of condensation from the inner side of the inner sheet of the glass door. An anti-fog or anti-frost coating is included on a surface of one of the sheets of glass.

Anti-fog, interchangeable-lens goggle adapted for use with a battery comprising: a body with a flexible posterior portion for engaging a user's face and an anterior portion; a lens having a resistive anti-fog element thereon, the lens adapted for engaging the anterior portion of the body; an engagement mechanism for releasably interconnecting the lens and the body; an interconnection mechanism depending from the body adapted for detachably interconnecting the heating element of the lens and the battery, the interconnection means operable or integral with the engagement mechanism such that interconnecting the heating element of the lens with the battery also reinforces interconnecting of the lens with the semi-rigid anterior portion of the body; and a strap adapted for holding the goggle on one of a user's head and helmet.

A flat or curved photochromic laminate structure and a plastic photochromic lens blank can be produced in a simple and efficient manner from relatively low-cost polymeric sheet materials. These laminates can be used to provide goggles, face shields, windows, window coverings, skylights, and optical lenses having efficient, uniform and high quality photochromic properties. The use of a polyesterurethane as the binder for the photochromic material has been found to improve the performance of the photochromic material. There may be a desire to have a protective exterior layer (e.g., an abrasion resistant layer) in combination with the lens system, but that may be provided in various methods. In the case of using the laminate in a goggle application, the laminate may be hard coated on one or both outer surfaces with an abrasion resistant coating, antireflective coating, and/or an anti-fog hard coating.

The invention relates to a method and a device for evaluating inhibiting ability of drilling fluid on formation and decomposition of hydrate. The device comprises a high and low temperature experimental box (1), a high-pressure reaction kettle (2) in the high and low temperature experimental box, a pressure controlling system, a microvideo camera and a data acquisition and control system (12). The reaction kettle is connected with the pressure controlling system through high-pressure pipelines on the upper and lower parts of the kettle; data acquisition and control system is connected with sensors arrange at the bottom of the reaction kettle and a high-pressure control platform (13) through data acquisition signal wires, wherein drilling fluid (4) to be tested is put on the high-pressure control platform; the microvideo camera is arranged in an observation cylinder (21) extended into a working chamber outside the high and low temperature experimental box and approaches front end of the observation cylinder (21) having anti-fog transparent glass so as to observe. The invention provides the device to evaluate inhibiting experiments of drilling fluid in underground bored wells and frozen earth and marine bored wells on formation and decomposition of hydrate under different temperature and pressure.

Multi-layer coatings are disclosed that include (1) a first layer comprising an inorganic oxide network, and (2) a second layer applied over at least a portion of the first layer, wherein the second layer is deposited from at least one liquid composition that is hydrophilic and includes an essentially completely hydrolyzed organosilicate. Also disclosed are substrates coated with such multi-layer coatings, methods of applying such multi-layer coatings to a substrate and methods for improving the anti-fouling, self-cleaning, easy-to-clean, and/or anti-fogging properties of an article.

The invention relates to a self-cleaning, antibacterial and anti-fog film. The self-cleaning, antibacterial and anti-fog film is prepared by acidizing TiO2 nano-particle powder, adding a surfactant, a stabilizer, an acid and the like, preparing, and concentrating to obtain TiO2 nano-particle slurry, adequately mixing the slurry with an organic high-molecular polymer and auxiliaries, and drying to obtain master batches; and commonly plasticizing, extruding and calendaring the master batches to prepare the self-cleaning, antibacterial and anti-fog film, wherein the constituents of the film comprise 72.89-92.34 wt% of the organic high-molecular polymer, 0.5-22.63 wt% of TiO2 nano particles and 3.36-23.45 wt% of auxiliaries. The film has a high visible light transmittance, self-cleaning, antibacterial and anti-fog functions, reflection and control effects on ultraviolet light rays and far-infrared light rays, antistatic property and anti-electromagnetic radiation property; the film is prepared with no need of high vacuum and high-temperature heating, simple and practicable equipment, and low cost; the film can be compounded with pressure-sensitive adhesive and heat-sensitive adhesive, used as the films of building glass, and the windows of vehicles and ships for improving the self-cleaning, antibacterial and anti-fog functions of the building glass and the windows, and used for performing transformation and large-area field construction on the installed glass and windows.

The invention belongs to functional material technology and glass processing field, concretely discloses a permanent self-cleaning glass with visible light response and method for making it. Firstly, sputtering silica dioxide film on the surface of glass, sputtering a layer of titanium oxide film with anion and cation codoping on the surface of silica dioxide film, annealing the glass with twin layer films at 500-600 DEG C, cooling by radiation in sintering stove, to get the product. The self-cleaning glass has good photocatalysis property and photo-induced hydrophilicity, stable performance, almost perpetual availability, high light transmittance ratio and transparency. It is widly used in glass curtain wall of skyscrapers, automobile glass, road lamp shade, kitchen galss and antifog glass, avoiding artificial cleaning indoor and outdoor glass of skyscrapers, saving manual power and material, reducing corrosion destruction of cleaning agent to glass and building machinery, embodying environment protection notion.

A sterile, self-contained, disposable apparatus used for heating and applying solution to the distal end of endoscopes as well as an endoscopic lens protector. The heating mechanism is chemical, electrical or a combination of both. Further the apparatus serves as a self sealing container for the storage and application of anti-fog solution. By placing the apparatus over the distal scope prior to surgery, the scope is protected from damage from other instruments or trays. At the same time the distal lens is submerged in the warm anti-fog solution and it is uniformly and completely coated. Heat is transferred to the instrument from the solution in one example to act as an important and additional measure to prevent fogging of the lens. By heating the solution and the instrument, the drastic temperature difference between the interior of the body (98.6) and the instrument is eliminated. This inhibits the condensation of moisture, which always occurs upon inserting the cool scope inside the warm body. The apparatus combines the use of an anti-fog solution as well, which helps prevent fogging during the procedure when smoke and heat is generated within the body during the procedure. Lastly, the apparatus is designed to be used as a holder of the scope while protecting it from impact with a shock absorbent outer shell prior to, during, and after the medical procedure. A new method for defogging endoscopes by which a sterile protective device is combined with a defogging mechanism and placed over the distal lens of endoscopes prior to the medical procedure, used intermittently during the procedure, then placed over the lens at the end of the procedure. The apparatus is not removed until scope reaches the cleaning facility. This apparatus is ideal for sterile operations where the instrument is used intermittently and repeatedly.

The invention provides a urethane acrylate oligomer, which has a structure shown in a formula I. The urethane acrylate oligomer with the structure shown in the formula I is taken as matrix resin, and the ultraviolet-curing antifogging coating is provided, and comprises the urethane acrylate oligomer, a flatting agent, a defoamer, a photoinitiator and a silane coupling agent. The urethane acrylate oligomer provided by the invention comprises an ethoxy group and a fluoride group; the urethane acrylate oligomer has hydrophily by the ethoxy group; the urethane acrylate oligomer has low surface energy by the fluoride group, so that the ultraviolet-curing antifogging coating has lasting anti-fog performance. The experiment result shows that the primary anti-fog performance of the film cured by the ultraviolet-curing antifogging coating provided by the invention can be up to 10 levels, and the anti-fog persistence can be up to 8-10 levels.