Reversible phase change composition for storing thermal energy
US4585572A · kind A · utility
27Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1983 |
| Grant date | Apr 29, 1986 |
| Priority date | — |
| Expiry date | Oct 11, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K5/063
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A reversible liquid/solid phase change composition for storing thermal energy. The composition comprises at least one hydrated inorganic salt selected from a salt or mixture of salts that are subject to segregation of its chemical components during repeated freezing and thawing cycles, and a surface active thickening agent in the form of a cationic surfactant and selected from an amine, salts of the amine, or a quaternary ammonium salt of the amine, wherein the thickening agent is present in the hydrated salt in an amount sufficient to form a micelle structure throughout the hydrated salt to prevent such segregation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.