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
• Resource Relation: Patent File Date: 18 Feb 1992
• Country of Publication: United States
• Language: English

Related Subjects

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