Abstract: A process for thickening an organic liquid, particularly useful in the manufacturing of lubricant greases, comprises; mixing the liquid with a metal sulphonate and possibly a volatile organic solvent, and then heating and/or grinding the resulting mixture.
Abstract: Sulfurized phenols, e.g., phenol sulfides, disulfides or polysulfides, oligomers thereof or mixtures of same when treated with alkyl vinyl ethers provide excellent metal anti-corrosivity characteristics without significant reduction of antioxidant, antiwear or other desired properties when incorporated into organic media such as lubricants.
Abstract: Mixed aromatic/aliphatic oxyaluminum acylates wherein the ratio of the number of aromatic radicals to the number of aliphatic radicals ranges from 3:1 to 19:1 and a process for making such compounds. Also premix compositions useful in grease manufacture are provided along with methods for preparing new greases therefrom.
November 4, 1980
Date of Patent:
December 1, 1981
Charles E. Pratt, Charles S. Colburn, Jr.
Abstract: A traction fluid is disclosed. The traction fluid is the product obtained by hydrogenation of a hydrocarbon composition containing at least 40 weight percent diphenylalkanes containing 22 to 34 carbon atoms.
Abstract: A control cable comprising an inner cable, a conduit and a lubricating layer interposed between, formed from a composition of high density polyethylene powders or pellets and a fluoro-alkylated silicone oil, thereby improving the slippage and the wear resistance of an inner cable, and being superior to endurance over a long period of time.
Abstract: Organic acid esters and oils of lubricating viscosity which have been oxidized and phosphosulfurized in the presence of lime or zinc oxide provide excellent antiwear/EP characteristics to metal forming lubricants containing same.
Abstract: This invention relates to a process of preparing stable suspensions of Mg(OH).sub.2 which comprises blending Mg(OH).sub.2 powder with acid in a surfactant-containing fluid to effect particle size reduction of the starting Mg(OH).sub.2 powder. In practice, the mole-fraction of acid employed is less than 50% of that stoichiometrically necessary for the formation of the magnesium salt.
Abstract: A continuous process for manufacture of soap thickened grease compositions where a saponifiable material and a metal base are continuously introduced at an elevated temperature into a saponification zone maintained at superatmospheric pressure and saponified under turbulent conditions, wherein the saponified product is mixed with an aqueous solution of oil-insoluble additive materials at a superatmospheric pressure sufficient for maintaining all water in the liquid phase, wherein the saponified material-additive mixture is heated to an elevated temperature of at least 350.degree. F.
Abstract: Highly basic magnesium phenates are prepared by a process in which a magnesium alkoxy-alkoxide is hydrolyzed in the presence of a sulphurized phenol and the mixture then carbonated in which the presence of free alkoxyalcohol in the reaction mixture is minimized prior to carbonation.
Abstract: Novel grease compositions are described which comprise:(a) A major amount of a shielded polysilicate compound selected from the group consisting of alkoxysilane cluster compounds, alkoxysilanol cluster compounds, alkoxysilane ester compounds, alkoxysilane multiple cluster compounds, silicone-bridged alkoxysilane double cluster compounds, distillation residues containing these compounds and mixtures thereof; and(b) an amount of at least one grease thickener sufficient to thicken said shielded polysilicate compound to a grease consistency.
March 31, 1980
Date of Patent:
October 13, 1981
Karl O. Knollmueller, Robert J. Fairbrother, David F. Gavin
Abstract: Combination deposit and rust control additives for internal combustion engines are provided which maintain cleanliness of intake systems without contributing to combustion chamber deposits and corrosion. The additives are salts of organic C.sub.3 -C.sub.30 monocarboxylic acids and hydrocarbyl poly(oxyalkylene)aminocarbamates comprising a hydrocarbyl-terminated poly(oxyalkylene) chain of 2-5 carbon oxyalkylene units bonded through an oxycarbonyl group to a nitrogen atom of a polyamine. Fuel and lube oil compositions containing these additive salts are provided for use in internal combustion engines.
Abstract: A self-lubricating bearing comprising a molded composite material prepared by blending lubricating oil, polynorbornene type resin and/or expanded graphite, and a main bearing material comprising a self-lubricating and abrasive resistant synthetic resin. Metal powders may be added to the synthetic resin as the main bearing material. The inventive bearing can perform under heavy loads and have a long life time.
Abstract: Engine friction is reduced by using in the engine crankcase a formulated motor oil containing a small amount of a reaction product of a fatty acid and monoethanolamine. A di-lower alkyl hydrocarbylphosphonate can optionally be included.
Abstract: Metallic dithiophosphates obtained by the sulfurization of a composition containing:(A) from about 100 to 20 percent by weight of a metallic dithiophosphate of the formula: ##STR1## in which R.sub.1 is an alkenyl or unsaturated cycloaliphatic radical, R.sub.2 and R.sub.3 are alkyl radicals, m is equal to the valence of the metal M, and M represents a metal of Groups IIB, IIIB, IVB, or VIII of the Periodic System of the Elements, preferably zinc;(B) from about zero to 80 percent of an R.sub.4 -COOR.sub.5 alkyl ester in which R.sub.4 is an alkenyl radical and R.sub.5 an alkyl radical, by means of 0.5 to 10 percent by weight of sulfur, referred to the composition to be sulfurized.Use as extreme-pressure and anti-wear additives for lubricating oils, in an amount of between about 0.3 and 15 percent of the weight of lubricating oil.
Abstract: This invention relates to a stable, fluid magnesium oxide-containing dispersion prepared by the thermal treatment of MgO powder in a non-volatile fluid in the presence of a stoichiometric or lesser amount of a carboxylic acid as illustrated by acetic acid.
January 16, 1980
Date of Patent:
October 6, 1981
William J. Cheng, David B. Guthrie, Donald M. Leiendecker
Abstract: What is disclosed is a concentrated polymer emulsion useful as a lubricating oil additive for improving the viscosity index thereof, said emulsion comprising:(1) a dispersed phase of an olefinic copolymer having a molecular weight complementary with respect to the thickening effect desired;(2) a dispersing phase of a polymer predominantly comprising at least one member selected from the group consisting of acrylate ester and methacrylate ester monomers;(3) a vehicle which is a good solvent for the esters in said dispersing phase and a substantially less good solvent for the olefinic copolymer by virtue of the esters dissolved in said vehicle; and(4) an emulsifier, stabilizing phase distribution, which is a member selected from the group consisting of graft copolymers and block copolymers formed from olefinic monomers and at least one member selected from the group consisting of acrylate ester and methacrylate ester monomers.
Abstract: Combination deposit and rust control additives for internal combustion engines are provided which maintain cleanliness of intake systems without contributing to combustion chamber deposits and corrosion. The additives are salts of hydrocarbyl oxyacid esters of phosphorus and of hydrocarbylpoly(oxyalkylene) aminocarbamates comprising a hydrocarbyl-terminated poly(oxyalkylene) chain of 2-5 carbon oxyalkylene units bonded through an oxycarbonyl group to a nitrogen atom of a polyamine. Lube oil and fuel compositions containing these additive salts are also provided for use in internal combustion engines.
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: These polysulphides are derived from at least two olefins and are suitable as lubricating and industrial oil additives. They have a proportion of sulphur of 22 to 45% for a practically zero content of chlorine and a refractive index n.sub.D.sup.20 ranging from 1.515 to 1.580.
May 15, 1979
Date of Patent:
August 18, 1981
Institut National de Recherche Chimique Appliquee