PURPOSE: To obtain a semisynthetic 2-cycle lubricant oil which is excellent in lubricity and cleanability and meets the requirement for low smoke generation by incorporating a mixture comprising specified amts. of a specific mineral base oil, a specific polyisobutene, kerosine, a cleaning agent, and a dispersant into the same.
CONSTITUTION: The lubricant oil contains a mixture comprising 10-70 wt.% mineral base oil comprising a middle distillate and/or a heavy, having a paraffinic, naphthenic, and arom. group, and having a viscosity of 4-15 cSt at 100°C, 5-30 wt.% kerosine, 2-12 wt.% cleaning agent (e.g. Ca phenate or sulfonate), 2-12 wt.% dispersant (e.g. polyisobutenesuccinamide), and 20-70 wt.% polyisobutene mixture comprising 5-30 wt.% polyisobutene having a mol.wt of 900-1,000, 5-30 wt.% polyisobutene having a mol.wt. of 400-500, and 2-10 wt.% polyisobutene having a mol.wt. of 1,200-1,400.
HAYASHI SEIICHI
RI SAIKAN
CHIN KEICHIYUU
CHIYOU SHIYOTOU
GI KOKUMEI
| JPH04122794A | 1992-04-23 | |||
| JPH0734085A | 1995-02-03 |