发明名称 |
Oil-soluble polyester, additive for lubricating oil, and lubricating oil composition |
摘要 |
An oil-soluble polyester having a weight average molecular weight of 10,000 to 1,000,000, which is a polycondensate prepared by polycondensing the following ingredients (A) and (B): (A) a dicarboxylic acid ingredient, and (B) a diol ingredient comprising (i) a hindered glycol represented by the following formula: HO-CH2-CR1R2-CH2-OH wherein R1 and R2 independently represent a linear or branched alkyl group, and (ii) an alkylene glycol having at least 4 carbon atoms in the main chain. This oil-soluble polyester is useful as an additive for a lubricating oil.
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申请公布号 |
US5723417(A) |
申请公布日期 |
1998.03.03 |
申请号 |
US19960598604 |
申请日期 |
1996.02.12 |
申请人 |
NIPPON ZEON CO., LTD.;HARIMA CHEMICALS, INC.;NIPPON OIL COMPANY, LTD. |
发明人 |
KITAHARA, SHIZUO;SHIKATANI, YUTAKA;IGARASHI, JUNICHI;ISHIKAWA, YOSHIHIDE;HASEGAWA, SHINSUKE;MIYAMOTO, MICHIO |
分类号 |
C08G63/199;C08G63/48;C10M145/22;C10M157/00;F02B75/02;(IPC1-7):C10M145/22;C08G63/16 |
主分类号 |
C08G63/199 |
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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