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    REFRIGERANT PACK
    1.
    发明专利
    REFRIGERANT PACK 未知

    公开(公告)号：MY176230A

    公开(公告)日：2020-07-24

    申请号：MYPI2016703267

    申请日：2015-02-26

    Applicant: TOPPAN FORMS CO LTD

    Inventor： NOBUTAKA UEDA ,  YASUHIRO TANAKA

    Abstract: A refrigerant pack is provided with a refrigerant substance containing water, a precipitating component, a non-precipitating component, and a pH indicator, and is configured such that the precipitating component precipitates when the refrigerant substance freezes and is a component not corresponding to the pH indicator, the non-precipitating component does not precipitate when the refrigerant substance freezes and is a component not corresponding to the pH indicator, a change or the presence/absence of coloring in the pH indicator is reflected before and after freezing, and the refrigerant substance changes in color.

    REFRIGERANT PACK
    2.
    发明专利
    REFRIGERANT PACK 未知

    公开(公告)号：MY186494A

    公开(公告)日：2021-07-22

    申请号：MYPI2018700757

    申请日：2016-09-14

    Applicant: TOPPAN FORMS CO LTD

    Inventor： AYA UCHINO ,  YASUHIRO TANAKA

    IPC: C09K5/08 ,  C09K5/06 ,  F25D3/00

    Abstract: A refrigerant pack includes a refrigerant composition containing water, inorganic salts, a thickener, and a pH indicator, in which the refrigerant composition contains, as the inorganic salts, acidic inorganic salts, which exhibit acidic propetties in an aqueous solution of the acidic inorganic salts, and a phosphate; in the refrigerant composition, a ratio of a total content of the acidic inorganic salts and the phosphate to a total content of the inorganic salts is 5% to 100% by mass; the refrigerant composition contains, as the acidic inorganic salts, dihydrogen phosphate and an inorganic salt other than the dihydrogen phosphate; a pKa of the pH indicator is 4.9 to 8.0; and a pH (?1) of the refrigerant composition obtained in a case where all the components contained in the composition other than the phosphate, the dihydrogen phosphate, and water are removed and the pKa satisfy a relationship represented by Expression (i). pKa of pH indicators ?pH (?1) ?pKa of pH indicator+ 1.8 ? (i)

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