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Patent application: Cooling fabric with PCM coating

Ben Welter - Tuesday, January 22, 2019

U.S. patent application 20190017200 (applicant Bedgear LLC, Farmingdale, N.Y.):

Bedgear patent drawing"A three-layer circular knitted jacquard fabric includes a first layer having a yarn made from a first material. A second layer of the fabric includes a yarn made from a second material. A third layer of the fabric includes a yarn made from a third material. At least one of the materials includes ultra-high weight molecular polyethylene. The second layer is positioned between the first layer and the third layer such that the second layer provides loft between the first layer and the third layer. ... In some embodiments, a top layer, such as, for example, the first layer can be coated with a phase change material and a bottom layer, such as, for example, the third layer can be coated with a phase change material. It is envisioned that the first layer and/or the third layer can be soaked with a phase change material and/or can be infused with a phase change material."

http://www.freepatentsonline.com/20190017200.pdf

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