Dry powder mixes comprising phase change materials

Patent · Tue May 18 00:00:00 EDT 1993

OSTI ID:6304987

Salyer, I O

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 [minus]3] to about 7[times]10[sup [minus]2] microns and the p.c.m. must be added to the silica in an amount of 80 wt. % or less p.c.m. per combined weight of silica and p.c.m. 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 p.c.m. material. The silica-p.c.m. mix can also be admixed with soil to provide a soil warming effect and placed about a tree, flower, or shrub.

• DOE Contract Number: FG03-86SF16308
• Assignee: Univ. of Dayton, Dayton, OH (United States)
• Patent Number(s): US 5211949; A
• Application Number: PPN: US 7-835854
• OSTI ID: 6304987
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320302* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Materials
BUILDING MATERIALS
CEMENTS
CHALCOGENIDES
CHEMICAL PROPERTIES
CONCENTRATION RATIO
DISPERSIONS
MATERIALS
MIXTURES
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
PHASE CHANGE MATERIALS
POWDERS
SILICON COMPOUNDS
SILICON OXIDES
SIZE
SOILS
USES