| 摘要 |
PURPOSE:To produce a grease which contains as a base oil an ester synthetic oil having a higher kinematic viscosity than the fatty acid ester of dipentaerythritol without damaging the low temperature property thereof, has long life under high temperatures and can be used in a wide temperature range from low temperatures to high temperatures. CONSTITUTION:A grease composition is characterized by employing a dipentaerythritol fatty acid ester having a kinematic viscosity of >=50cSt at 40 deg.C and a flow point of <=-35 deg.C as a base oil. |
