Transparent and insulating materials having evacuated capsules
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United States of America Patent
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Dec 15, 2020
Grant Date -
Jan 25, 2018
app pub date -
Jul 21, 2017
filing date -
Jul 22, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
Transparent and insulating materials having evacuated capsules are provided. According to an aspect of the invention, a method includes forming evacuated capsules within a solution, and dispersing and suspending the evacuated capsules within the solution such that a packing density of the evacuated capsules within the solution is greater than 30%, and a visible light transmission of the solution including the evacuated capsules is greater than 75%. According to another aspect of the invention, a layer includes a plurality of evacuated capsules distributed within a dried sol-gel. A thermal conductivity of the layer is between 0.02 W/m-K and 0.001 W/m-K, and the layer has a visible light transmission of greater than 30%.
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