Cold-storage material, cold-storage pack, and cold-reserving box

A technology of cold storage and supercooling, which can be used in household refrigeration devices, lighting and heating equipment, materials for heat exchange, etc., and can solve problems such as short duration.
CN1343241AInactive Publication Date: 2002-04-03水谷 耕治 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
水谷 耕治
Publication Date
2002-04-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

A cold-storage material obtained by adding 4 parts by weight of poly(N-vinylacetamide) as a cold-storage-prolonging agent to 100 parts by weight of 20 wt.% aqueous sodium chloride solution and adding thereto sodium borate as a supercooling inhibitor in an amount of 3 parts by weight per 100 parts by weight of the aqueous solution was packed into a pack (1) and cooled in a refrigerator to solidify it. This pack (1) containing the cold-storage material was placed in a cold-reserving box (2), which was examined for temperature change. As a result, it was ascertained that the cold-storage retention time was prolonged. Thus, a cold-storage material can be provided which has a prolonged cold-storage retention time and is suitable for use in cold reservation for long-term transportation, storage, display, etc.
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Description

technical field

[0001] The present invention relates to the use when carrying out long-term cold transportation, cold storage, cold display, etc. for various items that must be refrigerated or frozen (such as food, beverages, chemicals, pharmaceuticals, blood, internal organs, animals and plants), etc. Cold storage agent, cold storage bag and cold storage box. Background technique

[0002] In the past, cold storage agents were generally made of sodium chloride aqueous solution and dry ice. But the cold storage agent that is made by sodium chloride aqueous solution has following two problems:

[0003] (a) Cooling duration is shorter.

[0004] As explained in the results of Comparative Example ② in Figure 4 below, since the cooling performance at the beginning of use disappears after 12 hours, it cannot be used for long-term cold transportation, cold storage, cold display, etc.

[0005] (b) Supercooling occurs.

[0006] The so-called supercooling phenomenon refers to that ...

Claims

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