Dry powder mixes combining phase change materials

Details Dry powder mixes combining phase change materials Dry powder mixes combining phase change materials

C - Chemistry, Metallurgy

09

K

31/38

C09K 5/02 (2006.01) A01G 13/00 (2006.01) A47G 9/02 (2006.01) A61L 24/02 (2006.01) A61L 26/00 (2006.01) C08K 3/36 (2006.01) C09K 5/06 (2006.01) F16D 65/78 (2006.01) F16D 66/00 (2006.01) F16D 69/02 (2006.01) F28D 20/02 (2006.01) H05K 5/02 (2006.01)

Patent

CA 2033578

Free flowing, conformable powder-like mix of silica particles and a phase change material (p.c.m.) is disclosed. The silica particles have a critical size of about 7 x 10-3 to about 7 x 10-2 microns and the pcm must be added to the silica in an amount of 80 wt.% or less pcm per combined weight of silica and pcm. The powder-like mix can be used in tableware items, medical wraps, tree wraps, garments, quilts and blankets, and in cementitious compositions of the type in which it is beneficial to use a pcm material. The silica-pcm mix can also be admixed with soil to provide a soil warming effect and placed about a tree, flower, or shrub.

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