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RE39648 |
Crankcase lubricant for heavy duty diesel oil
Thus, the instant invention is directed toward an oil for diesel engines comprising an admixture of (A) a major amount of an oil of lubricating viscosity, (B) at least 4 mass % dispersant, (C) at...
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6962895 |
Lubricating compositions
This invention relates to a lubricating composition comprising at least about 30% by weight at least one mineral oil, having a kinematic viscosity of less than about 8 cSt at 100° C., (A) from...
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6872693 |
Mineral gear oils and transmission fluids
This invention relates to mineral oil based gear oils and transmission fluids which comprise a major amount of a mineral oil having an iodine number of less than 9 and where at least 55% of the...
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6844300 |
Low phosphorus clean gear formulations
Gear oils meeting GL-5 specifications are obtained by blending a base oil, a thermally stable phosphorus-containing anti-wear agent; and a metal-free sulfur-containing extreme-pressure agent;...
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6756348 |
Lubricating oil having enhanced resistance to oxidation, nitration and viscosity increase
This invention is directed to an antioxidant system for use in lubricating oils comprising sulfurized isobutylene and hindered phenols that provides enhanced oxidation resistance and is...
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6599865 |
Effective antioxidant combination for oxidation and deposit control in crankcase lubricants
It has unexpectedly been found that the combination of (1) an alkylated diphenylamine, (2) a sulfurized olefin/fatty oil and/or an ashless dialkyldithiocarbamate, and (3) an alkylated...
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6528462 |
Process for inhibiting the emission of hydrogen sulfide and/or mercaptans from sulfurized organic compounds
The present invention provides a process for inhibiting the emission of hydrogen sulfide and/or mercaptans from sulfurized organic compounds, which generally contain a high proportion of sulfur by...
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6448208 |
Liquid polyfunctional additives
A description is given of products obtainable by reacting components a), b), c) and, if desired, d), where component a) is a compound of the formula I or a mixture of compounds of the formula I,...
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6362136 |
Compositions for extending seal life, and lubricants and functional fluids containing the same
This invention relates to compositions containing a sulfur containing antiwear/extreme pressure agent, basic nitrogen compound or a mixture thereof together with a hydrocarbyl mercaptan. The...
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6326336 |
Turbine oils with excellent high temperature oxidative stability
A turbine lubricant consisting of (A) alkylated diphenylamine and/or phenylnaphthylamines, and (B) sulfurized olefins and/or sulfurized fatty acids and/or ashless dithiocarbamates and/or...
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6281174 |
Method to improve Cu corrosion performance of Mo-DTC and active sulfur by adding sunflower oil
Lubricating compositions are described which contain organomolybdenum compounds and sulfur compounds (donors). The copper corrosion of said compositions is reduced by reacting the sulfur donors...
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6228818 |
Organophosphoryl borates and lubricants and aqueous fluids containing the same
A borate ester represented by one of the following formulae: ##STR1## wherein each R 1 is independently hydrocarbyl, a hydrocarbyloxy or a hydrocarbylthio group or both R 1 on the same phosphorus...
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6184186 |
Lubricating compositions
Use of at least one friction modifier to reduce micropitting of a metal surface, which comprises lubricating the metal surface with a lubricant composition comprising the at least one friction...
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6096691 |
Gear oil additive concentrates and lubricants containing them
The concentrates comprise specified proportions of diluent oil, an organic sulfur-containing antiwear and/or extreme pressure agent, an ashless dispersant, a dimethyl ester of an aliphatic...
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5958849 |
High performance metal working oil
The present invention is a non-emulsifying, chlorine-free metal working or cutting oil which exhibits the same or superior performance as heretofore exhibited by chlorine containing fluids. The...
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5874390 |
Aqueous machining fluid and method
An aqueous machining fluid admixture comprises water, a sulfurized oil and a water soluble salt of a dimercaptothiadiazole wherein the weight ratio of the sulfurized oil to the water soluble salt...
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5849677 |
Sulfurized olefin composition and its method of preparation
This invention concerns a process for preparing a sulfurized olefin containing reduced amounts of thiones using a low molecular weight hydrocarbon to precipitate the thiones from the sulfurized...
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5792731 |
Lubricant composition for continuous variable transmissions and method for lubricating them with said lubricant composition
A lubricant composition for continuous variable transmissions which comprises a base oil and auxiliaries incorporated therein which are a sulfur-based extreme pressure additive (A), a...
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5712230 |
Additive compositions having reduced sulfur contents for lubricants and functional fluids
This invention relates to a composition, comprising: (AT) reaction products of compounds represented by the formula (A)and compounds selected to reduce the polysulfide components of (A); and...
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5706684 |
Metalworking process
There is provided a metalworking process, such as for example a punching process, wherein a shaping tool (eg. punch) contacts and applies a non-chip forming shaping force to a metallic workpiece...
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5698501 |
Ethylenic hydrocarbons sulphurized by elemental sulphur in the presence of an alkali metal carbonate or bicarbonate, their preparation and their use
Sulphur-containing substances are derived from mono- or polyethylenic hydrocarbons by sulphurization using elemental sulphur in the presence of an alkali metal carbonate or bicarbonate and in the...
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5698498 |
Hydroxyalkyl dithiocarbamates, their borated esters and lubricants, functional fluids, greases and aqueous compositions containing the same
This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity and (A) a minor amount of at least one hydroxyalkyl dithiocarbamate or at least one...
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5691283 |
Use of transmission and gear oil lubricants having enhanced friction properties
In a motor vehicle, especially a heavy duty motor vehicle, having a transmission equipped with at least one cone-type synchronizer and an axle or differential gearing, the same lubricant is used...
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5679626 |
Ethylenic hydrocarbons sulphurized by elemental sulphur in the presence of alkali or alkaline-earth metal hydroxices and in the presence of glycols or polyglcols, or their alkyl ethers, and or water
Sulphur-containing substances are derived from mono- or polyethylenic hydrocarbons by sulphurization using elemental sulphur in the presence of at least one alkali or alkaline-earth metal hydroxide...
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RE35461 |
Lubricating oil additives
Improved stability of overbased phenates, particularly when formulated with overbased sulphonates, as well as improved foaming tendency and viscosity is obtained by treated the overbased phenate,...
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5492638 |
Gear oil lubricants of enhanced friction properties
The frictional properties of gear oils are improved by including at least one overbased alkali or alkaline earth metal carboxylate, sulphonate or sulphurized phenate having a TBN of at least 200 in...
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5308654 |
Method for lubricating steel tubing prior to cold drawing
In the cold drawing of steel tubing, an excellent lubrication which permits drawing the tubing while retaining its original metallic luster can be achieved by first contacting the surfaces of the...
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5133889 |
Polysulfurized olefin compositions, their preparation and use as additives in lubricants
Described are polysulfurized olefin compositions defined as being prepared by reaction of sulfur monochloride and/or dichloride with at least one monoolefin with 6 to 12 carbon atoms to form an...
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5116523 |
Sulfide adducts of high viscosity index polyalphaolefins
Sulfur derivatives of unsaturated oligomers formed from alpha-olefins of 2 to 20 carbon atoms which oligomer has a branch ratio of less than 0.19.
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5062976 |
Process for preparing an extreme pressure lubricating oil additive
A process for preparing an oxidized sulfurized isobutylene product having utility as an EP additive. The process comprises the steps of: reacting sulfur monochloride with a stoichiometric excess of...
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5045221 |
Polysulphurized olefin compositions, their preparation and their use as additives for lubricants
Polysulphurized olefin compositions used as additives for gear oils, cutting oils, and as sulphurizing agents in organic media are obtained by a process comprising: a stage (1) in which at least...
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5006271 |
Organosulfur adducts as multifunctional additives for lubricating oils and fuels and as multifunctional lubricants
Sulfurized propylene based lube olefin derivatives are superior lubricating fluids with internal synergistic multifunctional extreme pressure/antiwear and antioxidant properties as well as...
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4839069 |
Olefin polysulfide compositions their manufacture and use as additives for lubricants
Compositions of olefin polysulfides having an increased solubility in mineral oils and in synthetic oils, particularly of the hydrogenated polyalphaolefin (P.A.O.) type, are disclosed. They are...
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4795576 |
Polysulfided olefin compositions, their preparation and use as additives for lubricants
The disclosed polysulfided olefin compositions can be used in particular as extreme-pressure additives for lubricants. They are prepared by a process comprising the steps of: (1) reacting sulfur...
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4764297 |
Protic solvent in a dehydrohalogenation process, the product obtained therefrom and lubricant compositions containing same
A process for producing a sulfurized olefin product substantially free of ash containing waste is disclosed. The process involves dehydrohalogenation of an olefin/sulfur halide complex by...
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4664825 |
Sulfurized compositions and lubricants containing them
A sulfurized composition prepared by sulfurizing a mixture of at least one terpene and at least one other olefinic compound is described. More particularly, sulfurized compositions prepared by...
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4645610 |
Method for the preparation of olefin polysulfides, the products obtained and their utilization as lubricant additives
A method for the preparation of olefin polysulfides that can be used in particular as extreme pressure additives for lubricants is described. This method comprises: (1) reacting sulfur monochloride...
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4474672 |
Reducing the cloud point of hydrodewaxed base stocks
The cloud point of a hydrodewaxed base stock is reduced by direct sulfurization of the base stock, or by direct sulfurization of the base stock in the presence of a magnesium, calcium or barium...
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4331564 |
Catalyzing the sulfurization of olefins by tertiary phosphines, and an oil based material containing an additive amount of a sulfurized olefin so produced
A process for catalyzing the sulfurization of olefins and the resulting products are disclosed in which the catalyst is a tertiary phosphine such as a trihydrocarbyl phosphine or a trihydrocarbyl...
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4200546 |
Metal salt treated sulfurized olefins and organic compositions containing same
A novel product made by forming the metal salt reaction product of a sulfurized olefin possesses, among other things, a good copper strip corrosivity. Organic composition containing a minor amount...
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4188297 |
Lubricant additive
Lubricant additives having antioxidant and antiwear properties are made by reacting an oolefin such as dicyclopentadiene with sulfur and a mercaptan.
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3972853 |
Process for stabilizing lubricating oil with elemental sulfur
A stabilized lubricating oil resistant to oxidation and sludge formation upon exposure to an oxidative environment is prepared without forming undesirable color bodies therein by contacting the...
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3963692 |
Sulfur-chlorinated polynuclear aromatic and fat mixture
A sulfur-chlorinated cyclic oil-fat product for use as the extreme pressure additive to cutting, drawing, lubricating, gear, and like oils is disclosed. The cyclic substituents contains a...
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3944539 |
Preparation of sulfurized olefins
In preparing organic sulfides by reacting olefins (e.g., butylenes) with a sulfur halide to form a sulfohalogenated intermediate which is subsequently sulfurized and dehalogenated by reaction with...
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3673090 |
SULFURIZATION OF TRIISOBUTYLENE AND PRODUCTS RESULTING THEREFROM
A process for the sulfurization of triisobutylene and resulting products comprising contacting triisobutylene with sulfur under essentially atmospheric conditions at a temperature between about...
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3538072 |
REACTION PRODUCT OF AROMATIC HYDROCARBONS AND THIONYL CHLORIDE IN THE PRESENCE OF METAL HALIDE FRIEDELCRAFTS CATALYSTS
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3498915 |
SULFURIZED DIELS-ALDER ADDUCTS AND LUBRICANTS CONTAINING THE SAME
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3410800 |
LUBRICATING OIL CONTAINING A VISCOSITY INDEX AND EXTREME PRESSURE ADDITIVE COMPRISING A SULPHUR AND HALOGEN CONTAINING OLEFIN POLYMER
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3346549 |
Method of preparing an oil soluble sulfur and halogen containing olefin polymer and product
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3285851 |
Lubricant
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