Lubricant for refrigerators using ammonia refrigerant
    1.
    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

    IPC分类号: C10M14526

    摘要: 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).

    摘要翻译: 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)。

    Resin composition containing graft copolymer
    2.
    发明授权
    Resin composition containing graft copolymer 有权
    含有接枝共聚物的树脂组合物

    公开(公告)号:US06875812B1

    公开(公告)日:2005-04-05

    申请号:US10628534

    申请日:2003-07-29

    摘要: An object of the present invention is to provide an agent serving both as a compatibilizer and an impact strength-imparting agent, which is freed from layer separation phenomenon and capable of improving compatibility to a polyphenylene ether and/or a polyolefin without detriment to weld tensile strength and low temperature impact strength. Another object is to provide a resin composition, which is obtained by blending the agent serving both as a compatibilizer and an impact strength-imparting agent with other thermoplastic resin, and which is superior in its impact resistance, particularly impact strength at low temperature, heat resistance and processability. To achieve the above objects, a modified hydrogenated block copolymer having a functional group at the terminal of said hydrogenated block copolymer chain is reacted with a modified polyphenylene ether and/or a modified polyolefin thereby obtaining a resin composition which is containing a graft copolymer formed in a manner such that the hydrogenated block copolymer is grafted to the polyphenylene ether and/or the polyolefin and which has the desired properties.

    摘要翻译: 本发明的一个目的是提供一种兼用作增容剂和冲击强度赋予剂的试剂,其不会发生层分离现象,并且能够改善与聚苯醚和/或聚烯烃的相容性,而不损害焊接张力 强度和低温冲击强度。 另一个目的是提供一种树脂组合物,其通过将作为增容剂和冲击强度赋予剂的其它试剂与其它热塑性树脂共混获得,并且其耐冲击性,特别是低温下的冲击强度,热量 阻力和加工性。 为了实现上述目的,将具有在所述氢化嵌段共聚物链末端具有官能团的改性氢化嵌段共聚物与改性聚苯醚和/或改性聚烯烃反应,从而得到含有形成于 使氢化嵌段共聚物接枝到聚苯醚和/或聚烯烃上并具有所需性质的方式。

    Ammonia refrigerating apparatus
    5.
    发明授权
    Ammonia refrigerating apparatus 有权
    氨制冷装置

    公开(公告)号:US06568195B2

    公开(公告)日:2003-05-27

    申请号:US10169168

    申请日:2002-06-28

    IPC分类号: F25B4100

    摘要: To provide a refrigerating unit using ammonia as a refrigerant, which uses a lubricant that is excellent in the compatibility with an ammonia refrigerant as well as in the lubricity and the stability. An ammonia refrigerating unit formed by a refrigerating cycle including a refrigeration compressor, a condenser, an expansion valve and an evaporator, wherein a working is circulated in said refrigerating cycle, the working fluid including ammonia and a lubricant that contains a polyether compound represented by one of the following formula (1) or (2): X{—O—(AO)n—H}p  (1) X{—O—(AO1)a—(AO2)b—H}p  (2) [wherein X represents a residue resulting from removing a hydroxyl group from a monool or a polyol; (AO)n represents an AO chain constituted by copolymerization of EO and C3 or more AO; (AO1)a represents an AO chain constituted by copolymerization of EO and PO and/or BO; AO2 represents C3 or more AO; and in the formula (1), the number of the secondary hydroxyl groups from among hydroxyl groups at the structural terminal is 50% or more of the total number of the hydroxyl groups].

    摘要翻译: 提供一种使用氨作为制冷剂的制冷装置,其使用与氨制冷剂的相容性优异的润滑剂以及润滑性和稳定性。一种制冷循环的氨制冷装置,包括制冷压缩机, 冷凝器,膨胀阀和蒸发器,其中工作在所述制冷循环中循环,所述工作流体包括氨和包含由下式(1)或(2)之一表示的聚醚化合物的润滑剂:[其中X 表示从一元醇或多元醇除去羟基得到的残基; (AO)n表示通过EO和C3以上的AO的共聚构成的AO链; (AO1)a表示由EO和PO和/或BO的共聚构成的AO链; AO2表示C3以上的AO; 在式(1)中,结构末端的羟基中的仲羟基数为羟基的总数的50%以上]。