Tech Exchange

Single-Layer Electrochromic Polymer Technology for Automotive and Architectural Glazing Light Control

DuPont’s electrochromatic (EC) technology for controllable light transmission in automotive and architectural safety glazing applications is based on an organic polymer film that can function as a controllable EC interlayer. This technology addresses the need for reducing the complexity of current EC technologies and can be used in rigid and flexible forms, large sizes, and curved shapes. It has applications in dynamic electrochromic glazing systems that undergo a reversible change in color from light to dark by application of a very low voltage. Target markets in automotive include sunroofs, mirrors, instrument clusters, windshield shadebands, sidelights, and backlights. The technology works either in transmissive or reflective mode. Transmissive EC devices are made with indium tin oxide electrodes that are fully transparent in the visible spectral range. All of the components of the electronic control systems are commercially available. Get the complete report on this technology at: Email: nasatech@yet2.com Phone: 781-972-0600

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Tool-Free Engineered Composite Thermoforming Technology

Tooless Engineered Composite (TEC) is a patent-pending process that incorporates the benefits of a thermoformed plastic composite product and the strength of fiberglass reinforcement. This tool-free process utilizes the thermoformed shell as the tool surface in a closed mold process. The result is an extremely durable product with superior finish quality. The product has low to no emissions and uses soy and corn resin. The TEC process utilizes a multi-layer thermoformed shell producing products with a class “A” finish. Utilizing a multi-layer thermoformed shell eliminates painting, which reduces cost and produces low or no emissions. This multi-layer shell has a layer of acrylic that may be sanded and buffed if needed. The thermoformed shell allows for the use of various materials, finishes, colors, textures, and decorative patterns that may be utilized in different applications. Get the complete report on this technology at: Email: nasatech@yet2.com Phone: 781-972-0600

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Anti-Reflective Coating for Films

Able to withstand abrasion even with steel wool, these antireflective coating formulations for display applications offer high durability and reflectivity that ranges from 1.2% down to 0.5%. Reducing ambient light reflectance significantly improves image clarity on LCD and PDP displays and rearprojection televisions, especially in daylight or outdoor conditions. Lenses and other optical equipment may be additional applications. This DuPont technology is a single-pass roll-toroll (microgravure) coating process. Because of its refractive index and thickness, light reflected by the underlying substrate is out of phase with light reflected from the front surface. The two phases cancel each other out, dramatically reducing reflectance and improving image clarity. All the formulations offer exceptional adhesion to the substrate, a neutral color, and exceptional durability. The single applied coating spontaneously forms two layers to improve scratch resistance, adhesion, and improved optical benefits. Get the complete report on this technology at: Email: nasatech@yet2.com Phone: 781-972-0600

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Page-Rendering Software for eBooks and Manufacturers

Rapidly evolving eBook technology promises to deliver books, catalogs, newspapers, or magazines anywhere electronically on compact, easy-to-carry readers. eBooks face challenges that physical books do not: file security during transmission, speed of transmission, and the risk of piracy. The ReadAllOver™ system is a proprietary dual solution of compressed file format and rendering software engineered for the next generation of eBooks. ReadAllOver is based on proprietary halftone algorithms, printing to the screen in much the same way as presently is done with ink and paper. The algorithms offer improved edge detail allowing the entire page, images, and typography to be processed at once. The result is a more print-like look and feel.

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Password Protection System Requires No Special Hardware

The High-Security Password System takes the place of strong passwords on digital devices and online services, yet is easy to remember and quick to enter for most individuals. This system places images in a two- or three-dimensional matrix to generate the equivalent of a ten-digit number. The security of the system can be increased by cells in the matrix, also consisting of a number of cells.

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Catalytic Filters for Outdoor Power Equipment

NoxFox™ Catalytic Filters reduce harmful emissions from engine exhaust with performance comparable to existing catalytic converters. High-surface-area ceramic nanofibers hold nanoparticles of platinum, palladium, rhodium, and other catalysts, so that NoxFox catalytic filters are comparatively lightweight and robust. Patented, catalyzed ceramic nanofibers (nCATfibers™) provide high surface area for maximal contact and minimal exhaust resistance. Engine makers can use NoxFox catalytic filters do the job not possible by engine tuning and deliver a highly “green” product. In addition, the product’s unique structure results in a 50% weight reduction over existing honeycomb catalytic converters. Get the complete report on this technology at: Email: nasatech@yet2.com Phone: 781-972-0600

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Advanced Particle Separation Technology Uses Coriolis Force and Specific Gravity

This technology selectively separates fine and small particles that have a desired particle size range by using the particles’ specific gravity and their various sedimentation rates in a rotating vessel of vibrating liquid. By adjusting the frequency and amplitude of the vibration, and by controlling the rotation of the vessel, the technology can enlarge what may be a close-to-equal settling ratio for small particles of high specific gravity and larger particles of low specific gravity, so as to achieve accurate separation by cross-sectional dimension or specific gravity.

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