Latent heat cold storage material
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsHironobu Machida, Motohiro Suzuki, Shinsuke Takeguchi, Kentaro Shii, Kazuaki Suito
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Abstract
Provided is a latent heat cold storage material containing: water; a crystalline powder; and at least one inorganic salt. The crystalline powder is formed of a compound having a saturated concentration of less than 7.0 wt % to an aqueous solution of the inorganic salt having a concentration of 25 wt % at 25° C. A concentration of the crystalline powder exceeds a saturated concentration of the crystalline powder to the aqueous solution of the inorganic salt at 25° C.
Claims15
A latent heat cold storage material comprising:
- water;
- a crystalline powder;
- and
- at least one inorganic salt,
- wherein the crystalline powder is 1,3-diethylurea,
- the 1,3-diethylurea has a concentration of not less than 0.1 wt % and not more than 20 wt %, and
- the latent heat cold storage material has a solidification starting point of not less than −30° C. and not more than −10° C.
A latent heat cold storage material comprising:
- water;
- a crystalline powder;
- and
- at least one inorganic salt,
- wherein the crystalline powder is 1,3-dibutylurea, and
- the latent heat cold storage material has a solidification starting point of not less than −30° C. and not more than −10° C.
A latent heat cold storage material comprising:
- water;
- a crystalline powder;
- and
- at least one inorganic salt,
- wherein the crystalline powder is 1,3-dicyclohexylurea, and
- the latent heat cold storage material has a solidification starting point of not less than −30° C. and not more than −10° C.
Dependencies are inferred from the claim text.