Dry powder mixes comprising phase change materials

Patent · Mon Jan 31 23:00:00 EST 1994

OSTI ID:5289370

Salyer, I O

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. 2 figures.

• DOE Contract Number: FG03-86SF16308
• Assignee: Univ. of Dayton, OH ()
• Patent Number(s): US 5282994; A
• Application Number: PPN: US 7-870487
• OSTI ID: 5289370
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250600* -- Energy Storage-- Thermal
36 MATERIALS SCIENCE
360606 -- Other Materials-- Physical Properties-- (1992-)
CHALCOGENIDES
CONCENTRATION RATIO
DISPERSIONS
ENERGY STORAGE
HEAT STORAGE
LATENT HEAT STORAGE
MATERIALS
MINERALS
MIXTURES
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
PHASE CHANGE MATERIALS
PHYSICAL PROPERTIES
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SIZE
STORAGE
THERMODYNAMIC PROPERTIES
USES