| 发明名称 |
Perfluoropolyether ester compound, lubricant and magnetic recording medium |
| 摘要 |
A novel perfluoropolyether derivative, which has at least one ester bond and is useful as a lubricant with a decomposition temperature of 300° C. or more, is obtained by an esterification reaction between a perfluoropolyether diol having hydroxyl groups at both ends thereof and represented by the formula (1) and a perfluoropolyether dicarboxylic acid having carboxyl groups at both ends thereof and represented by the formula (2): <?in-line-formulae description="In-line Formulae" end="lead"?>HOCH<SUB>2</SUB>-R-CH<SUB>2</SUB>OH (1)<?in-line-formulae description="In-line Formulae" end="tail"?> <?in-line-formulae description="In-line Formulae" end="lead"?>HOOC-R'-COOH (2)<?in-line-formulae description="In-line Formulae" end="tail"?> wherein each of R and R' is a perfluoroether group.
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| 申请公布号 |
US7157410(B2) |
申请公布日期 |
2007.01.02 |
| 申请号 |
US20040518717 |
申请日期 |
2004.12.22 |
| 申请人 |
SONY CHEMICAL & INFORMATION DEVICE CORPORATION |
发明人 |
NAKATA YOSHIAKI |
| 分类号 |
C07C69/66;C10M105/54;C08G63/16;C08G63/672;C08G63/682;C10M107/38;C10M169/04;C10N20/04;C10N30/08;C10N40/18;G11B5/725 |
主分类号 |
C07C69/66 |
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