Abstract:
A lubricant composition comprising water, graphite, an organic thickener, sodium molybdate, and sodium pentaborate. Other additives are sodium bicarbonate, ethylene glycol, or mica. The composition is effective in the hot forging of metals, is virtually non-flammable, and generates very little atmospheric pollution during use.
Abstract:
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.
Abstract:
An improved lubricating oil composition comprising a major amount by weight of oil of lubricating viscosity; a minor amount by weight of solid particles effective to improve the lubricating properties of the composition; and a minor amount by weight of at least one of certain specific polymers has been found to provide improved inhibition of sludge and varnish formation in use. The polymers useful in the present composition comprise(1) an olefin polymer, for example, an ethylene, propylene and 1,4-hexadiene terepolymer, with an dialkylaminoalkyl methacrylate grafted thereon;(2) an interpolymer prepared from a long chain n alkyl-methacrylate and a dialkylaminoalkylmethacrylate or a N (alkanone) acrylamide; or(3) mixtures thereof.
Abstract:
This invention is directed to a synergistic antioxidant system for use in oils comprising a phenylated naphthylamine, a sulfoxide compound, and, optionally, an oligodynamic amount of copper.
Abstract:
An ashless sulfur-free antiwear additive combination with good oxidative stability at high temperatures is disclosed. It consists of a mixture of tricresyl phosphate and pentaerythritol monooleate, said combination exhibiting dramatically enhanced antiwear properties.
Abstract:
The dispersion of an inorganic high molecular weight graphite fluoride having a formula of (CF)n in a lubricant is improved by the addition of finely divided silica particles. An improved lubricant composed of base oil, graphite fluoride, and silica has excellent physical and chemical properties hitherto unattainable.
Abstract:
Emulsifiable compositions are obtained consisting essentially of defined amounts of a long chain fatty acid partial ester of hexitol anhydride, a polyoxyethylene derivative of hexital anhydride partial long chain fatty acid ester, an alkylaryl polyether alcohol having a short polyether chain, and normally liquid oil of lubricating viscosity. These emulsifiable compositions can also contain minor amounts of lard oil and a light petroleum fraction, such as kerosene. A small amount of the emulsifiable composition, such as about 1 to 4 weight percent, is dispersed in water and forms a stable emulsion which is useful as a lubricant in grinding of glass with a diamond grinding surface. These new compositions are characterized by the ability to form and maintain oil-in-water emulsions which are stable for extended periods of time under severe conditions of use and increase diamond life, with small, economical amounts of lubricant being consumed. Other advantages are that the lubricating compositions of this invention require less spindle power with less pressure to obtain the same glass surface finish.
Abstract:
THE INVENTION DESCRIBED HEREIN IS A LUBRICATING COMPOSITION CONTAINING ANTIMONY TRIOXIDE IN A LIQUID CARRIER AND IS ESPECIALLY SUITABLE FOR THE LUBRICATION OF TITANIUMSTEEL AND MONEL-STEEL INTERFACES. ADDITIONALLY, IT HAS BEEN FOUND THAT THE ADDITION OF ANTIMONY TRIOXIDE TO FLUOROSILICONE FLUIDS TENDS TO STABILIZE SUCH FLUIDS AGAINST OXIDATION.