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    Lubricant for refrigerators using ammonia refrigerant
    11.
    发明授权
    Lubricant for refrigerators using ammonia refrigerant 有权
    使用氨制冷剂的冰箱的润滑剂

    公开(公告)号：US06335311B1

    公开(公告)日：2002-01-01

    申请号：US09508961

    申请日：2000-03-20

    Applicant: Masato Namiki ,  Goro Yamamoto ,  Takashi Kaimai ,  Hitoshi Takahashi

    Inventor： Masato Namiki ,  Goro Yamamoto ,  Takashi Kaimai ,  Hitoshi Takahashi

    IPC: C10M14526

    CPC classification number: C10M171/008 ,  C10M107/34 ,  C10M2201/00 ,  C10M2201/061 ,  C10M2201/16 ,  C10M2201/18 ,  C10M2209/107 ,  C10N2220/02 ,  C10N2240/00 ,  C10N2240/22 ,  C10N2240/30 ,  C10N2240/50 ,  C10N2240/52 ,  C10N2240/54 ,  C10N2240/56 ,  C10N2240/58 ,  C10N2240/60 ,  C10N2240/66

    Abstract: To provide a polyalkylene glycol-based refrigerant oil for refrigerators using ammonia as a refrigerant. The present invention provides a lubricant for refrigerators using ammonia refrigerant, comprising polyethers selected from the group consisting of a polyether represented by the following general formula (1) X—{—O—(AO)n—H}p  (1) (wherein X is a residue of a monool or polyol from which a hydroxyl group is eliminated; (AO)n is a polyoxyalkylene group formed by copolymerization of EO and an AO having 3 or more carbon atoms; n is 2 or more; and p is a valence of X) and having 50% or more of secondary hydroxyl groups among the hydroxyl groups located at the terminal of the structure based on the total hydroxyl groups, or a polyether represented by the following general formula (2) X—{—O—(AO1)a—(AO2)b—H}p  (2) (wherein X is a residue of a monool or polyol from which a hydroxyl group is eliminated; (AO1)n is a polyoxyalkylene group formed by copolymerization of ethylene oxide and propylene oxide and/or butylene oxide; AO2 is an oxyalkylene group having 3 or more carbon atoms; a is 2 or more; b is 1 or more; and p is a valence of X).

    Abstract translation: 提供一种使用氨作为制冷剂的制冷剂的聚亚烷基二醇系冷冻机油。本发明提供一种使用氨制冷剂的制冷机的润滑剂，其包含选自下述通式（1）表示的聚醚的聚醚（其中， X是除去羟基的一元醇或多元醇的残基;（AO）n是通过EO和具有3个或更多个碳原子的AO的共聚形成的聚氧化烯基; n是2以上; p是 X的化合价），并且在基于全部羟基的结构的末端的羟基中具有50％以上的仲羟基，或由以下通式（2）表示的聚醚（其中X为残基 的一元醇或多元醇，其中羟基被除去;（AO1）n是通过环氧乙烷和环氧丙烷和/或环氧丁烷的共聚形成的聚氧化烯基团; AO2是氧化烯 具有3个以上碳原子的基团; a是2以上; b为1以上; 并且p是X的化合价）。

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