Dry powder mixes comprising phase change materials

Patent · 31 December 1991

OSTI ID:868250

Salyer, Ival O ^[1]

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1. Dayton, OH

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, 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.

• Research Organization: University of Dayton (Dayton, OH)
• DOE Contract Number: FG03-86SF16308
• Assignee: University of Dayton (Dayton, OH)
• Patent Number(s): US 5106520
• OSTI ID: 868250
• Country of Publication: United States
• Language: English

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