Tech Exchange

Preventing Adhesion of Cellulose to Steel

A client’s application joins cellulose and a resin binder. A combination of the binding agent and fibers sticks to the surface of the steel. The organization therefore seeks novel foams, coatings, and gels to act as a physical buffer between the fibers and the steel. The physical buffer must function up to temperatures of 400 °F. The solution may also provide a blanketing function to keep all particles together during transport of the loose fibers.

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Personal Cleansing Innovations

Personal cleansing after using the bathroom is a worldwide necessity, and various cultures solve that need differently. New devices must facilitate this type of cleaning and deliver soothing formulations onto the skin. The technology will serve as an alternative to Western dry toilet paper, European bidets, and moistened wipes. Proposed formulations must also reduce pain or irritation. Solutions may also contain common ingredients, including aloe, lanolin, or various vitamins.

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Hydrogen Degassing System Features Ceramic Rotor

A system for degassing hydrogen uses silicon nitride ceramic rotors. The technology’s rotors stir molten aluminum and disperse the gas. By adding bubbles of an inert gas, hydrogen is drawn out from the metal, which otherwise would cause voids and substantially weaken castings.

Posted in: Techs for License

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CV Number Enables Tunable Ball Valves

A ball valve for process systems has a field-adjustable CV number. The CV number allows the valve to be “tuned” for its system. The ball, controlled by an actuator, is moved 0–90 degrees. An adjustable V-port then adjusts the CV number.

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Bacteria Elimination from Hard Surfaces

Long-term care facilities are subject to outbreaks of Clostridium difficile (C. diff) bacteria that form a hard shell, enter a vegetative spore state, and are thus able to withstand conventional cleaning. An active ingredient or mechanical/ electronic means must minimize the threat of C. diff and its spores. The bacteria proliferate when a person touches a hard surface where C. diff spores exist. A client seeks a way to break the transmission of bacteria and viruses from surfaces to hands and eyes. Speed of disinfection must be part of the solution.

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Insulating Coating for a Ceramic Substrate

A client seeks an insulating coating for a ceramic substrate and a method of applying it. Electrical leakage from one side of the substrate to the other causes damage. A thin coating is preferred for the application, but the critical specification is the relative permittivity of the coating, which should be smaller than 20 micrometers. A proposed solution must cover 100% of an area approximately 0.5 × 0.5 m, with an average surface roughness (Ra) ~500nm, and peak-to-valley measurements of ~5 micrometers. Operating conditions for the coating after application are at near-room-temperature.

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Safety Glass Offers Near-Infrared Heat Reflection

New safety glass technology reflects 50% of solar radiation and transmits 70% of visible light. A non-micellar twisted nematic liquid crystal features cholesteric near-infraredreflecting properties, along with at least one near-infrared absorptive material. The composition can be used as a layer — optionally in conjunction with polymeric films, polymeric sheets, and rigid sheets — to form multilayer laminates. The multilayer shields are useful as solar control windows to reduce energy consumption and cool the interior of automobiles or buildings.

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