发明名称 |
MANUFACTURING METHOD OF ESTER FOR LUBRICATING OIL |
摘要 |
PROBLEM TO BE SOLVED: To provide a simple manufacturing method of an ester for lubricating oils which achieves satisfactory acid elimination and decoloring even if a sorbent is used in a reduced amount. SOLUTION: The manufacturing method of the ester for lubricating oils comprises the step (1) wherein an aliphatic polyhydric alcohol (A) and a saturated aliphatic monocarboxylic acid (B) are reacted to obtain reaction products including esters; the first acid elimination step (2) wherein the unreacted saturated aliphatic monocarboxylic acid is removed from the reaction products obtained in the step (1); the step (3) wherein the reaction products that have undergone the acid elimination through the step(2) is decolored; and the second acid elimination step (4) wherein the unreacted saturated aliphatic monocaboxylic acid is removed from the reaction products decolored by the step (3). COPYRIGHT: (C)2005,JPO&NCIPI |
申请公布号 |
JP2005170998(A) |
申请公布日期 |
2005.06.30 |
申请号 |
JP20030409817 |
申请日期 |
2003.12.09 |
申请人 |
KAO CORP |
发明人 |
HASHIMOTO JIRO;MICHIGAMI YOSHIHITO;SHIOJIRI FUMIHIRO |
分类号 |
C10M105/38;C07C67/08;C07C67/56;C10M105/14;C10M105/24;C10M177/00;C10N30/20;C10N70/00;(IPC1-7):C10M105/38 |
主分类号 |
C10M105/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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