A magnetic core is made of a composite magnetic material having a relative permeability of between 1 and 29 at a frequency range from 20 kHz to 2.5 MHz. The composite magnetic material consists of cobalt and nickel particles having an average diameter in the range of 1 to 100 micrometers, and a poly.....
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This invention provides water-dispersible polyurethanes made by reacting a difunctional alcohol, a difunctional isocyanate, and a chain extender containing reactive hydrogen groups, and then neutralizing. This invention also provides aqueous polyurethane dispersions.
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The present invention relates to a strain gauge and methods of making such wherein the gauge contains a doped polymeric fluid suitable for measuring elongations of more than 10%.
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A method of fabricating silicone composite with a layer of antimicrobial coating, the method includes forming an antimicrobial mixture by adding a calculated amount of antimicrobial agent to a solution of water and alcohol, depositing the antimicrobial mixture in a container with a thickness of 0.1 .....
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Higher luminance efficiency as compared to LEDs with barium/aluminum cathodes Up to 3X the performance of LEDs with barium/aluminum cathodes due to superior electron injection Deposition via solution methods without disturbance of the underlying layer
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