申请人:Idemitsu Kosan Co., Ltd.
公开号:US07964540B2
公开(公告)日:2011-06-21
A lube base oil which comprises at least one hydrocarbon compound having as the basic skeleton a structure represented by any of the general formulae (I) to (VI) and has a viscosity at −40° C. of 40 Pa·s or lower and a viscosity index of 80 or higher, (wherein p is an integer of 1 to 10, provided that in the formulae (I) and (II), p is not 1). It satisfies the coefficient of high-temperature traction, low-temperature flowability, and viscosity index on a high level.
润滑基础油至少包括一种碳氢化合物,其基本骨架由通式(I)至(VI)中的任何一种结构表示,并且在-40℃时具有40 Pa·s或更低的粘度指数和80或更高的粘度指数(其中p为1至10的整数,在通式(I)和(II)中,p不为1)。它满足高温牵引系数、低温流动性和粘度指数的高水平要求。