# US 7,967,999 B2 · Heat storage substance, heat storage agent, heat reservoir, heat transport medium, cold insulation agent, cold insulator, melting point control agent for heat storage agent and supercooling preventive agent for heat storage agent

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 7,967,999 B2
- Document ID: US7967999B2
- Status: Granted
- Kind: B2
- Application number: 11/919,677
- Filed: 2006-06-08
- Published: 2010-06-03
- Granted: 2011-06-28
- Earliest claimed: 2005-06-08
- Assignees: JFE Engineering Corporation
- Inventors: Keiji Tomura
- Web page: https://patentgrep.com/patent/US7967999B2

## CPC

- C09K 5/063: {Materials absorbing or liberating heat during crystallisation; Heat storage materials}
- Y02E 60/14: Thermal energy storage
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

It is possible to provide a heat storage substance, a heat storage agent, a heat transport medium, and a cold insulation agent having low corrosiveness and a high latent heat quantity at a low cost, their production method, and a cold reservoir and a cold insulator containing the heat storage substance as content. The heat storage substance is characterized by containing a tri-n-butylalkylammonium salt and water. The heat storage substance is characterized by containing either tri-n-butyl-n-pentylammonium bromide or tri-n-butyl-n-pentylammonium chloride and water. The heat storage agent is characterized by containing a tri-n-butylalkylammonium salt and water. The heat storage agent is characterized by containing either tri-n-butyl-n-pentylammonium bromide or tri-n-butyl-n-pentylammonium chloride and water. The heat transport medium is characterized by containing a tri-n-butylalkylammonium salt and water. The heat transport medium is characterized by containing either tri-n-butyl-n-pentylammonium bromide or tri-n-butyl-n-pentylammonium chloride and water.

## Claims

### Claim 1

A heat storage agent comprising either tri-n-butyl-n-pentylammonium bromide or tri-n-butyl-n-pentylammonium chloride, a corrosion inhibitor and water.

### Claim 2 (depends on 1)

The heat storage agent according to claim 1, further comprising a tetraalkylammonium compound.

### Claim 3 (depends on 1)

The heat storage agent according to claim 1, further comprising tetra-n-butylammonium bromide.

### Claim 4

A heat storage agent comprising tri-n-butyl-n-pentylammonium bromide hydrate or tri-n-butyl-n-pentylammonium chloride hydrate.

### Claim 5 (depends on 4)

The heat storage agent according to claim 4, further comprising tetra-n-butylammonium bromide hydrate.

### Claim 6

A heat transport medium comprising tri-n-butyl-n-pentylammonium bromide hydrate or tri-n-butyl-n-pentylammonium chloride hydrate.

### Claim 7

A heat transport medium in a form of slurry comprising tri-n-butyl-n-pentylammonium bromide hydrate particles dispersed in an aqueous solution containing tri-n-butyl-n-pentylammonium bromide.

### Claim 8

A cold insulation agent comprising tri-n-butyl-n-pentylammonium bromide hydrate.

### Claim 9

A cold insulation agent comprising tri-n-butyl-n-pentylammonium bromide hydrate, and tetra-n-butylammonium bromide hydrate.