| 发明名称 | Refrigerating machine oil and working fluid composition for refrigerating machines | ||
| 摘要 | The refrigerating machine oil of the invention includes an ester of a polyhydric alcohol and a fatty acid, wherein the molar ratio of C4-C6 fatty acid and C7-C9 branched fatty acid in the fatty acid is between 15:85 and 90:10, the C4-C6 fatty acid includes 2-methylpropanoic acid, and the ratio of the total C4-C6 fatty acid and C7-C9 branched fatty acid in the total fatty acids composing the ester is at least 20 mol %. The working fluid composition for a refrigerating machine according to the invention comprises the refrigerating machine oil, a difluoromethane refrigerant and/or an unsaturated fluorinated hydrocarbon refrigerant. | ||
| 申请公布号 | US9005470(B2) | 申请公布日期 | 2015.04.14 |
| 申请号 | US201113818170 | 申请日期 | 2011.08.05 |
| 申请人 | JX Nippon & Energy Corporation | 发明人 | Takigawa Katsuya;Saito Masanori;Okido Takeshi;Takahashi Kuniko |
| 分类号 | C09K5/04;C10M101/00;C10M171/00 | 主分类号 | C09K5/04 |
| 代理机构 | Greenblum & Bernstein, P.L.C. | 代理人 | Greenblum & Bernstein, P.L.C. |
| 主权项 | 1. A refrigerating machine oil comprising an ester obtained by esterification of only a polyhydric alcohol and a fatty acid mixture comprising at least one C4-C6 fatty acid and at least one C7-C9 branched fatty acid, wherein the molar ratio of the at least one C4-C6 fatty acid and the at least one C7-C9 branched fatty acid in the fatty acid mixture is between 15:85 and 90:10, the at least one C4-C6 fatty acid comprises 2-methylpropanoic acid, and the total amount of the at least one C4-C6 fatty acid and the at least one C7-C9 branched fatty acid in the fatty acid mixture is at least 20 mol %. | ||
| 地址 | Tokyo JP | ||