Dry powder mixes comprising phase change materials

Details Dry powder mixes comprising phase change materials Dry powder mixes comprising phase change materials

1992-04-16

1994-02-01

Lieberman, Paul

Compositions

Frost-preventing, ice-thawing, thermostatic, thermophoric,...

524 5, 524 8, 524493, 428402, 428403, C09K 506

Patent

active

052829944

ABSTRACT:
Free flowing, conformable powder-like mix of silica particles and a phase change material (PCM) is provided. The silica particles have a critical size of about 0.005 to about 0.025 microns and the PCM must be added to the silica in an amount of 75% 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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