US 12,449,180 B2
Cold storage material and cooler box
Hironobu Machida, Nara (JP); Motohiro Suzuki, Osaka (JP); and Shinsuke Takeguchi, Osaka (JP)
Assigned to PANASONIC HOLDINGS CORPORATION, Osaka (JP)
Appl. No. 18/294,986
Filed by Panasonic Holdings Corporation, Osaka (JP)
PCT Filed Aug. 5, 2021, PCT No. PCT/JP2021/029208
§ 371(c)(1), (2) Date Feb. 2, 2024,
PCT Pub. No. WO2023/012992, PCT Pub. Date Feb. 9, 2023.
Prior Publication US 2024/0337428 A1, Oct. 10, 2024
Int. Cl. F25D 3/00 (2006.01)
CPC F25D 3/00 (2013.01) [F25D 2303/085 (2013.01); F25D 2331/804 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A cold storage material comprising:
tetrahydrofuran;
water; and
at least one silver compound selected from the group consisting of silver phosphate represented by a chemical formula Ag3PO4, silver carbonate represented by a chemical formula Ag2CO3, and a silver oxide represented by a chemical formula AgO, wherein
the cold storage material has a melting point of 2 degrees Celsius or higher and 8 degrees Celsius or lower, and
the cold storage material has a crystallization temperature of 0 degrees Celsius or higher and lower than the melting point.