Dry powder mixes comprising phase change materials

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

1993-03-17

1993-10-19

Lilling, Herbert J.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 362, 428 364, 428 3692, 428402, 524493, 126246, 126400, B29D 2200, B32B 100, A47G 2304, F24H 700

Patent

active

052543803

ABSTRACT:
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.times.10.sup.-3 to about 7.times.10.sup.-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, garmets, 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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