发明名称 |
Lubricant for compression refrigerating machine and refrigerating apparatus using the same |
摘要 |
The present invention provides a lubricating oil for a compression type refrigerator including a polyvinyl ether-based compound containing an alkylene glycol or polyoxyalkylene glycol unit and a vinyl ether unit in a molecule and having a molecular weight in a range of 300 to 3,000, an epoxy compound having 8 or more carbon atoms The lubricating oil for a compression type refrigerator of the present invention has high miscibility and high viscosity index, and is excellent in stability, and does not have an unpleasant odor under carbon dioxide atmosphere. |
申请公布号 |
US8894875(B2) |
申请公布日期 |
2014.11.25 |
申请号 |
US200712443494 |
申请日期 |
2007.09.19 |
申请人 |
Idemitsu Kosan Co., Ltd. |
发明人 |
Kaneko Masato;Ikeda Harutomo |
分类号 |
C09K5/04;C10M171/00;C10M169/04 |
主分类号 |
C09K5/04 |
代理机构 |
Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P. |
代理人 |
Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P. |
主权项 |
1. A lubricating oil for a compression type refrigerator, comprising:
70% by mass or more of a polyvinyl ether-based compound containing an alkylene glycol or polyoxyalkylene glycol unit and a vinyl ether unit in a molecule and having a molecular weight in a range of 300 to 3,000; and 0. 01 to 5% by mass of an epoxy compound selected from the group consisting of a glycidyl ether having 5 to 30 carbon atoms and an α-olefin oxide having 8 to 50 carbon atoms, wherein the polyvinyl ether-based compound has a carbon/oxygen molar ratio of 4.0 or less and has a structure represented by the general formula (I):wherein
R1, R2, and R3 each represent a hydrogen atom or a hydrocarbon group having 1 to 8 carbon atoms, which may be identical to or different from one another; Rb represents a divalent hydrocarbon group having 2 to 4 carbon atoms; Ra represents a hydrogen atom, an aliphatic or alicyclic hydrocarbon group having 1 to 20 carbon atoms, an aromatic group which has 1 to 20 carbon atoms and may have a substituent, an acyl group having 2 to 20 carbon atoms, or an oxygen-containing hydrocarbon group having 2 to 50 carbon atoms; R4 represents a hydrocarbon group having 1 to 10 carbon atoms; when plural Ras, Rbs, and R4s are present, they may be identical to or different from one another; m represents an average value of 15 to 21; k represents a number of 1 to 50; p represents a number of 2 to 50; when plural ks and ps are present, units may be in block or in random form; and when plural RbOs are present, they may be identical to or different from one another. |
地址 |
Tokyo JP |