发明授权
- 专利标题： Refrigerating machine oil for carbon dioxide refrigerant
- 专利标题（中）： 二氧化碳制冷剂冷冻机油基础油和二氧化碳制冷剂制冷机油
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申请号： US12293846申请日： 2007-03-20
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公开(公告)号： US07993543B2公开(公告)日： 2011-08-09
- 发明人: Kazuo Tagawa , Ken Sawada , Yuji Shimomura , Katsuya Takigawa , Jiro Hashimoto , Masataka Negishi
- 申请人： Kazuo Tagawa , Ken Sawada , Yuji Shimomura , Katsuya Takigawa , Jiro Hashimoto , Masataka Negishi
- 申请人地址： JP Tokyo JP Tokyo
- 专利权人： Nippon Oil Corporation,Kao Corporation
- 当前专利权人： Nippon Oil Corporation,Kao Corporation
- 当前专利权人地址： JP Tokyo JP Tokyo
- 代理机构： Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
- 优先权： JPP2006-081317 20060323; JPP2006-317560 20061124
- 国际申请： PCT/JP2007/055727 WO 20070320
- 国际公布： WO2007/108484 WO 20070927
- 主分类号： C09K5/04
- IPC分类号： C09K5/04
摘要：
The base oil for the refrigerating machine oil used with a carbon dioxide refrigerant of the invention is characterized by comprising a complete ester of a fatty acid in which the proportion of C14-C22 branched fatty acid is 40-100% by mole and a polyhydric alcohol. The refrigerating machine oil used with a carbon dioxide refrigerant according to the invention is characterized by comprising the base oil for the refrigerating machine oil used with a carbon dioxide refrigerant according to the invention. The base oil for the refrigerating machine oil used with a carbon dioxide refrigerant and the refrigerating machine oil used with a carbon dioxide refrigerant according to the invention, when used together with a carbon dioxide refrigerant, exhibit excellent stability and electrical insulating properties, and have suitable compatibility with refrigerants while allowing adequate lubricity to be exhibited without increasing the viscosity of the base oil.
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