Dry powder mixes comprising phase change materials

Patent · Tue Apr 21 00:00:00 EDT 1992

OSTI ID:7070367

Salyer, I O

A 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 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. 9 figs.

• DOE Contract Number: FG03-86SF16308
• Assignee: Univ. of Dayton, Dayton, OH (United States)
• Patent Number(s): US 5106520; A
• Application Number: PPN: US 7-462365
• OSTI ID: 7070367
• Resource Relation: Patent File Date: 9 Jan 1990
• Country of Publication: United States
• Language: English

Related Subjects

60 APPLIED LIFE SCIENCES
PHASE CHANGE MATERIALS
CHEMICAL PREPARATION
SILICON OXIDES
HORTICULTURE
MIXTURES
PARTICLE SIZE
AGRICULTURE
CHALCOGENIDES
DISPERSIONS
MATERIALS
OXIDES
OXYGEN COMPOUNDS
SILICON COMPOUNDS
SIZE
SYNTHESIS
553000* - Agriculture & Food Technology