Automatic transmission fluid composition

作者： Masanobu Kitanaka

DOI:

关键词: Alkyl 、 Salt (chemistry) 、 Molecule 、 Boron 、 Analytical chemistry 、 Base oil 、 Automatic transmission fluid 、 Metal 、 Dynamical friction 、 Chromatography 、 Chemistry

摘要: An automatic transmission fluid composition is provided which has significantly higher coefficients of dynamic friction (μd) and static (μs) than those the conventional fluid. In addition, a μo/μd ratio close to 1.0, small change with passage time in frictional properties. The comprises 0.01 20% by weight an overbasic oil-soluble metal salt (a) prepared use alkaline-earth borate, 15% compound (b) having long-chain alkyl group amino same molecular structure on basis total amount as essential components, balance being lubricating base oil.