THIN INSULATIVE MATERIAL WITH LAYERED GAS-FILLED CELLULAR STRUCTURE
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United States of America Patent
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app pub date -
Oct 7, 2009
filing date -
Oct 7, 2008
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Abstract
A lightweight, gas-filled, highly insulative material is incorporated into an article of outdoor gear or apparel (e.g., a camping pad). The insulative material has a layered cellular structure that can be filled with an insulative gas (e.g., air or argon). The insulative material includes two or more layers of cells, which improves insulation (compared to a single layer) by reducing convection for a given thickness. Increasing the thickness without substantially increasing convection results in a better insulator and an improvement in the ability to retain heat.
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