Transparent heat reflective coatings and methods of their manufacture and use
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United States of America Patent
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Dec 5, 2017
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app pub date -
Jul 15, 2014
filing date -
Jul 17, 2013
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Abstract
A nano-composite material for coating glass, as well as methods of its manufacture and use, are disclosed. The composite may be composed of a first metal oxide bridging a silicone oil moiety and an anionic surfactant moiety, and a second metal oxide bound to the silicone oil moiety. The composite may be fabricated by heating a first metal oxide and a second metal oxide with silicone oil, followed by the addition of a mixture of the surfactant and an oxidizing solution. The composite may be mixed with a suitable solvent and applied to a hot glass sheet. A glass coated with such a composite may transmit visible light, absorb some ultraviolet light, and reflect some near infrared light. The optical characteristics of the coated glass may be used to reduce heat in a glass-enclosed area by reducing the amount of infrared and ultraviolet light transmitted through the glass.
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