摘要:
A friction reducing additive for addition to the lubricating oil crankcase of an internal combustion engine, such as in an automobile, is provided. The additive comprises (a) a hydrocarbon oil of lubricating viscosity; (b) an extreme pressure antiwear agent comprising: (i) an oil dispersion of solid inorganic film-forming potassium borate, (ii) antimony diaklylphosphorodithioate, and (iii) a liquid chlorinated paraffin; (c) an alkaline material; and (d) a viscosity index improver. The preferred additive composition of the present invention also contains an antioxidant and an antifoaming agent.
摘要:
A lubricant composition comprising a base fluid having the general formulaR.sub.f O(CF.sub.2 CF.sub.2 O).sub.m (CF.sub.2 O).sub.n R.sub.fwherein R.sub.f is CF.sub.3 or C.sub.2 F.sub.5, m and n are integers whose sum is between 2 and 200, and the ratio of m to n is between 0.1 and 10, and a corrosion inhibiting amount of an aromatic phosphine with perfluorinated polyalkylether substituents having the general formula ##STR1## wherein R.sub.f OR.sub.f - is a perfluoroalkylether group containing at least one ether linkage.
摘要翻译:一种润滑剂组合物,其包含具有通式RfO(CF 2 CF 2 O)m(CF 2 O)n R f的基础流体,其中Rf为CF 3或C 2 F 5,m和n为总和为2至200的整数,m与n的比率为0.1 和具有通式为“IMAGE”的全氟化聚烷基醚取代基的芳族膦的腐蚀抑制量,其中RfORf-是含有至少一个醚键的全氟烷基醚基团。
摘要:
Disclosed is a graphited gear oil containing extreme pressure additives, which significantly overcomes the increased tendency of graphite-containing compositions to thicken in use.
摘要:
A thread sealing and lubricating composition which can be employed at elevated temperatures without carburization of stainless steel fittings is disclosed. The composition contains 8-25% finely divided copper flakes, 5-20% finely divided aluminum particles, and 4-15% non-metallic, non-carbon powder suspended in a petroleum vehicle. The preferred composition contains 10% copper flakes, 5% aluminum powder, 5% non-metallic powder and 80% viscous petroleum vehicle.
摘要:
The present invention relates to 9-hydroxy-9,10-boroxarophenanthrene compositions which are particularly suitable additives to improve the stability of lubricating oils and fuel compositions. More particularly, esters of 9-hydroxy-9,10-boroxarophenanthrene which are formed from hindered phenols have been found to have improved and sustained oil solubility and comprise hydrolytically stable antioxidants which, in minor amounts, have been found to impart to oils of lubricating viscosity a high level of protection against oxidative degradation.
摘要:
Antioxidant additives for lubricating oil are prepared by combining an acidic molybdenum compound and certain basic nitrogen compounds to form a molybdenum-containing compositions.
摘要:
A solid lubricant comprising a substantially amorphous carbon micro-sphere selected from carbon micro-beads and carbon micro-balloons having a particle size of 0.1 to 1,000.mu. and a specific gravity of the particle of 0.2 to 2.0, which has excellent low frictional coefficient and wearing resistance.
摘要:
A lubricant for metal working which is positively free of oily matter is prepared by mixing a polyethylene oxide with water and/or a polyhydric alcohol to form a paste, with or without the addition of a solid powder lubricant to the resulting paste.
摘要:
Friction of internal combustion engines is reduced by using a crankcase motor oil containing the combination of graphite and a di-lower alkyl hydrocarbyl phosphonate, e.g. dimethyloctadecylphosphonate.