| abstract |
Disclose a kind of method improving the consistency of fluorocarbon elastomer sealing member and lubricating oil composition, described lubricating oil composition contains the lubricant viscosity base oil of (a) primary amount, and (b) one or more contain the dispersion agent of one or more basic nitrogen atom.The method relates to the fluorocarbon elastomer compatibility improver that one or more that add significant quantity to lubricating oil composition comprise one or more not halogen-containing oil soluble titanium complexs, described oil soluble titanium complex comprises the part that at least one is selected from lower group: the negatively charged ion of (i) saturated carboxylic acid, (ii) α-, the negatively charged ion of β-or γ-hydroxy carbonyl compounds; (iii) α-, the negatively charged ion of β-or γ-hydroxycarboxylic acid, acid amides or ester; (iv) α-, the negatively charged ion of β-or gamma-amino carboxylic acid; (v) α-, the negatively charged ion of β-or the acid of γ-one. |