Global to push GA events into
skip to main content

Title: Dry powder mixes comprising phase change materials

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.
Inventors:
Issue Date:
OSTI Identifier:
5289370
Assignee:
Univ. of Dayton, OH () PTO; EDB-94-063118
Patent Number(s):
US 5282994; A
Application Number:
PPN: US 7-870487
Contract Number:
FG03-86SF16308
Resource Relation:
Patent File Date: 16 Apr 1992
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE; LATENT HEAT STORAGE; PHASE CHANGE MATERIALS; THERMODYNAMIC PROPERTIES; SILICA; CONCENTRATION RATIO; MIXTURES; PARTICLE SIZE; USES; CHALCOGENIDES; DISPERSIONS; ENERGY STORAGE; HEAT STORAGE; MATERIALS; MINERALS; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SILICON COMPOUNDS; SILICON OXIDES; SIZE; STORAGE; 250600* - Energy Storage- Thermal; 360606 - Other Materials- Physical Properties- (1992-)