Refrigerating machine oil, and fluid composition for refrigerating machine
    319.
    发明申请
    Refrigerating machine oil, and fluid composition for refrigerating machine 有权
    制冷机油,制冷机用流体成分

    公开(公告)号:US20020115577A1

    公开(公告)日:2002-08-22

    申请号:US09977685

    申请日:2001-10-16

    Abstract: A refrigerating machine oil for a carbon dioxide refrigerant according to the invention is a refrigerating machine oil comprising polyalkylene glycol represented by the following general formula (1): R1nullnull(OR2)nnullOHnullmnullnull(1) nullwhere R1 represents a residue of an organic compound having a hydroxyl group, from which the hydroxyl group has been removed, R2 an alkylene group, and m and n respective integersnull, wherein a number average molecular weight of the polyalkylene glycol is not less than 500 nor more than 5000, wherein a rate of ethylene group among the alkylene group in the polyalkylene glycol is more than 0 and not more than 80 mol %, and wherein a rate of molecules in which the alkylene group bonded to a terminal hydroxyl group in the polyalkylene glycol is an ethylene group, is not more than 20 mol %.

    Abstract translation: 根据本发明的用于二氧化碳制冷剂的冷冻机油是包含由以下通式(1)表示的聚亚烷基二醇的冷冻机油:<部分lvl =“0”>在线式> R1 { - ( OR2)n-OH} m(1) [其中R1表示除去了羟基的羟基的有机化合物的残基,R2是亚烷基,m和 n个整数],其中聚亚烷基二醇的数均分子量不小于500且不大于5000,其中聚亚烷基二醇中亚烷基中亚乙基的比例大于0且不大于80摩尔% ,其中与聚亚烷基二醇中的末端羟基键合的亚烷基为亚乙基的分子的比例为20摩尔%以下。

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