发明名称 |
Lubricant base oil, lubricant composition for internal combustion engine and lubricant composition for driving force transmitting device |
摘要 |
The lubricating base oil of the invention is characterized by satisfying at least one of the following conditions (a) or (b).
(a) A saturated compound content of 95% by mass or greater, and a proportion of 0.1-10% by mass of cyclic saturated compounds among the saturated compounds.(b) The condition represented by the following formula (1).
1.435≦n20−0.002×kv100≦1.450 (1)
wherein n20 represents the refractive index of the lubricating base oil at 20° C., and kv100 represents the kinematic viscosity (mm2/s) of the lubricating base oil at 100° C. |
申请公布号 |
US9012380(B2) |
申请公布日期 |
2015.04.21 |
申请号 |
US200611794739 |
申请日期 |
2006.01.10 |
申请人 |
Nippon Oil Corporation;Petroleum Energy Center |
发明人 |
Sano Takashi;Komatsubara Hitoshi;Wada Hisayuki;Kurosawa Osamu;Itou Masaaki;Matsui Shigeki;Takahashi Masato;Fu Kai;Shirahama Shinichi;Sugiura Izuru;Taguchi Masahiro;Konishi Shozaburo |
分类号 |
C10M105/02;C10M169/04;C10M101/02;C10M171/00 |
主分类号 |
C10M105/02 |
代理机构 |
Finnegan, Henderson, Farabow, Garrett & Dunner, LLP |
代理人 |
Finnegan, Henderson, Farabow, Garrett & Dunner, LLP |
主权项 |
1. A lubricating base oil having a saturated compound content of 95% by mass or greater, and a proportion of 0.5 to less than about 3% by mass of cyclic saturated compounds among the saturated compounds, wherein the lubricating base oil satisfies the condition represented by formula (I):
1.435≦n20−0.002×kv100≦1.450 (1) wherein n20 represents the refractive index of the lubricating base oil at 20° C. and kv100 represents the kinematic viscosity at 100° C. of the lubricating base oil, and wherein the unit of kv100 is mm2/s. |
地址 |
Tokyo JP |