A lubricating composition that has improved air release characteristics is based on a lubricating base oil comprising an oil or mixture of oils derived from waxy hydrocarbons produced in an F-T synthesis process. The composition is substantially free of a viscoelastic fluid having a shear stress greater than 11 kPa and a viscosity greater than 30 cSt at 100° C. It is further characterized as entraining less than 1.7% air in 2 minutes and having an air release rate greater than 0.3%/min. when measured at 50° C. by ASTM D 3427.
申请公布号
EP2049635(A2)
申请公布日期
2009.04.22
申请号
EP20070810669
申请日期
2007.07.20
申请人
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
发明人
DECKMAN, DOUGLAS, EDWARD;BAILLARGEON, DAVID, J.;HORODYSKY, ANDREW, G.