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Class 508/379 - The heavy metal is molybdenum, a rare earth metal, gold, silver, or mercury


Subclass of Class 508 - Solid anti-friction devices, materials therefor, lubricant or separant compositions for moving solid surfaces, and miscellaneous mineral oil compositions
Definition: Compositions wherein molybdenum, a rare earth metal, gold,
No. of patents: 78
Last issue date: 12/18/2007


1    
NumberTitleIssue Date
7309680Molybdenum-sulfur additives
A process for making an additive comprising one or more oil-soluble or oil-dispersible molybdenum-sulfur compounds, said process comprising the steps of: (I) reacting in a polar medium a reactant molybdenum compound (A) and a sourc...
12/18/2007
7214648Lubricant and additive formulation
An engine lubricant formulated as a complete crankcase motor oil or additive concentrate composed of a combination of chemical constituents including a base oil selected from a synthetic oil, a mineral oil or semi-synthetic base oil (hydrogenated oil) or combination...
05/08/2007
7176167Vibration resistant bearing
According to the invention, a self contained vibration resistant bearing is provided. The bearing is coated with a film formed from a rust preventive oil having an extreme-pressure additive content of 0.5 to 10% by weight. Desirably the extreme-pressure additive is ...
02/13/2007
7067463Pivot assembly bearing
A pivot assembly bearing used in an information storage device maintains its capabilities for a longer period of time under frequent quick starting and stopping by containing a grease composition made up of a base oil, a thickener and an extreme-pressure agent. ...
06/27/2006
6958409Process for reduced crude sediment in metal salts of hydrocarbyl dithiophosphoric acid
A process for the manufacture of a low sediment overbased metal dithiophosphate composition is disclosed. The process uses delayed addition of a C1 to C5 mono-carboxylic acid promoter during the neutralization of a primary dialkyl dithiophospho...
10/25/2005
6953771Lubricant compositions
A lubricating oil composition comprising, or made by mixing, a major amount of an oil of lubricating viscosity and a minor amount of at least one compound comprising a polynuclear molybdenum core having bonded thereto one or more monoanionic ligands capable of rende...
10/11/2005
6919300Penetrating lubricant composition
A protective lubricating composition is provided which will penetrate readily to closely fitting frictional parts and form a protective non-migrating lubricating film improving lubrication between the moving parts reducing friction and wear and preventing corrosion....
07/19/2005
6894009Grease composition for constant velocity joints
A grease composition for constant velocity joints, having a base oil and a urea-based thickener, which grease additionally contains, (A) molybdenum sulphide dialkyldithiocarbamate and (B) 5,5-dithiobis (1,3,4-thiadiazole-2-thiol); a method of lubricating a constant ...
05/17/2005
6890890Lubricants with the combination of a molybdenum compound, a phosphorus compounds and dispersants
This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity, (A) an antiwear improving amount of at least one molybdenum containing composition, (B) at least one phosphorus antiwear or extreme pressure agent, and ...
05/10/2005
6852678Water-based lubricants containing sulfur as a coordinating atom and uses thereof
An aqueous lubricant is provided which by simple application onto metal surfaces forms lubricating films required for heavy working of metals, and which contains no oil. The aqueous lubricant is prepared by suspending or dispersing a metal chelate compound in water ...
02/08/2005
6774092Additive composition for gearbox oil
Disclosed is an additive composition that can be mixed with various types of basic oils to produce a lubricant that can meet the international standards of manual truck gearbox oils. A preferred embodiment includes various quantities of an isobutylene sulfide, zinc ...
08/10/2004
6774091Lubricant and additive formulation
A lubricant additive formulation for increasing the performance of conventional engine lubricants for use as an engine treatment oil additive formulated for addition to conventional motor oil to improve the lubricating properties of the engine oil and enhance the pe...
08/10/2004
6730638Low ash, low phosphorus and low sulfur engine oils for internal combustion engines
A lubricating composition for internal combustion engines especially useful with fuels having less than 350 ppm sulfur comprises a lubricating oil basestock, a boron containing ashless dispersant, a molybdenum containing friction reducing agent, a metal type deterge...
05/04/2004
6727208Lubricants containing a bimetallic detergent system and a method of reducing NOx emissions employing same
A lubricating oil composition comprising a major amount of an oil of lubricating viscosity and an additive system comprising (A) from about 0.1 to about 5% by weight of a detergent composition comprising at least two metal overbased compositions wherein said deterge...
04/27/2004
6723685Lubricating oil composition
A lubricating oil composition comprising a) an oil of lubricating viscosity having a viscosity index of at least 95; b) at least one calcium detergent; c) at least one oil soluble molybdenum compound; d) at least one organic ashless nitrogen-free friction modifier; ...
04/20/2004
6541429Lubricant compositions
A lubricating oil composition is provided comprising a major amount of an oil of lubricating viscosity and a minor amount of, as an additive, at least one compound comprising a polynuclear molybdenum core and bonded thereto one or more anionic ligands cap...
04/01/2003
6541427Lubricant for maintenance-free cardan shafts
The present invention relates to a lubricant for service-free cardan shafts comprising a base selected from the group consisting of a naphthenic solvent and a paraffinic solvent; a thickener selected from the group consisting of lithium salt, lithium soap...
04/01/2003
6541430Fluorinated lubricant additives
Fluorinated dialkyl dithiophosphoric acids according to formula (I) and metallic salts thereof: ##STR1## the compounds are useful, for example, as additives for lubricant compositions....
04/01/2003
6482779Lubricating grease composition and rolling apparatus comprising same
A lubricating grease composition having a basic grease composition containing a synthetic oil as a base oil, and a lithium soap as a thickener. 0.5 to 10% by weight with respect to the basic grease composition total amount of at least one additive selecte...
11/19/2002
6444621Grease composition for steering of motorcars
A grease composition for steering of motorcars which comprises the following components (a) to (f): (a) a thickening agent; (b) a base oil having a pour point of not higher that -40° C.; (c) an organic molybdenum compound; (d) melamine cyanurate; (e) pol...
09/03/2002
6432888Grease for rolling bearing and grease-sealed rolling bearing
The present invention is directed to a grease for a rolling bearing containing poly-଱-olefin synthetic oil or diphenyl ether synthetic oil, a diurea thickening agent, and an organic antimony compound or an organic molybdenum compound. The present in...
08/13/2002
6403538Grease composition for constant velocity joints
Grease composition for constant velocity joints comprising a base oil and urea-based thickener, which grease further comprises, (A) from 0.1 to 10% by weight of an optionally substituted molybdenum-organocyclic compound containing at least 5 ring atoms, w...
06/11/2002
6391833Low sulfur lubricant composition for two-stroke engines
A low sulfur detergency additive suitable for lubricant composition used in air-cooled two-stroke cycle engines having an unsulfurized alkaline earth alkylsalicylate and optionally a molybdenum compound....
05/21/2002
6379581Lubricated refrigerant composition containing fluorocarbon-type refrigerant, synthetic oil and molybdenumoxysulfide derivatives
A lubricant for use in a refrigerator which operates with a chlorine-free Flon (fluorocarbon)-type refrigerant whose molecules do not contain chlorine. The lubricant contains a synthetic oil, and molybdenumoxysulfide diorganophosphorodithioate given by th...
04/30/2002
6358894Molybdenum-antioxidant lube oil compositions
The invention relates to lubricating oil compositions of a major amount of an oil of lubricating viscosity in admixture with an effective minor amount of an oil soluble or dispersible trinuclear molybdenum containing complex and of an antioxidant, prefera...
03/19/2002
6355602Grease composition for constant velocity joint
A grease composition for constant velocity joints comprises the following components: (a) a base oil; (b) a diurea type thickening agent represented by the following formula (1): R1 NH--CO--NH--C6 H4 --p--CH2 --C
03/12/2002
6271182Rolling device for information apparatus
A rolling device is made up of a plurality of rolling bodies provided between an outer member having a first contact face with each of the plurality of rolling bodies and an inner member having a second contact face with each of the plurality of rolling b...
08/07/2001
6258760Grease composition for constant velocity joint
The present invention relates to a grease composition for a constant velocity joint, which has a low coefficient of friction to decrease the vibrations of CVJ, which comprises a base oil, a urea thickening agent, (A) a molybdenum dialkyldithiocarbamate, (...
07/10/2001
6232276Trinuclear molybdenum multifunctional additive for lubricating oils
A lubricating oil composition is provided comprising a major amount of an oil of lubricating viscosity and a minor amount of at least one trinuclear molybdenum compound. Preferably, the trinuclear molybdenum compound is selected from those compounds havin...
05/15/2001
6172013Lubricating oil composition comprising trinuclear molybdenum compound and diester
Lubricating oil compositions having enhanced friction coefficient and wear properties are provided by compositions of an oil of lubricating viscosity with additives of molybdenum and diesters of aliphatic or aromatic dicarboxylic acids....
01/09/2001
6110878Lubricant additives
Oil-soluble or oil-dispersible trinuclear molybdenum-sulfur compounds are made by reacting less than three, such as 1.5 to 2.5, preferably two to 2.1, molar equivalents of a disulfide with one molar equivalent of a compound containing the [Mo3 ...
08/29/2000
6074993Lubricating oil composition containing two molybdenum additives
A lubricating oil composition exhibiting improved fuel economy and wet clutch friction properties, which comprises: (a) an oil of lubricating viscosity; (b) at least one calcium or magnesium overbased detergent; (c) an oil soluble dimeric molybdenum compo...
06/13/2000
6051536Oil composition for continuously variable transmissions
An oil composition for continuously variable transmissions (CVT) comprising a base oil, (A) a sulfonate, (B) an ashless dispersant, (C) an acid amide, (D) an organomolybdenum compound, and (E) an amine antioxidant. The oil composition for CVT prevents the scra...
04/18/2000
6037314Grease composition for constant velocity joints
A grease composition for constant velocity joints comprises (a) a base oil; (b) a urea thickener; (c) at least one organic molybdenum compound selected from the group consisting of molybdenum dithiocarbamate and molybdenum dithiophosphate; and (d) at leas...
03/14/2000
5962377Lubricant additive formulation
A lubricant additive formulation for increasing the performance of conventional engine lubricants for use as an engine treatment oil additive formulated for addition to conventional motor oil to improve the lubricating properties of the engine oil and enh...
10/05/1999
5952273Grease composition for constant velocity joints
A grease composition for constant velocity joints comprising: (a) a base oil; (b) a diurea thickener of the formula (1): R1 NH--CO--NH--C6 H4 -p-CH2 --C6 H4 -p-NH--CO--NHR2 wherein R
09/14/1999
5939364Lubricating oil containing additive comprising reaction product of molybdenum dithiocarbamate and dihydrocarbyl dithiophosphoric acid
Multifunctional molybdenum compounds, which are the reactive product of molybdenum dithiocarbamates and (non-metal containing) dihydrocarbyl dithiophosphoric acids, and the oils that contain them are new compositions which are useful as lubricant additive...
08/17/1999
5902776Additive compositions for lubricants and functional fluids
This invention relates to a composition, comprising: (A) a metal, amine or ammonium salt of a compound represented by the formula ##STR1## wherein in Formula (A-I), X1, X2 and X3 and X4 are independently O ...
05/11/1999
5895779Lubricating oil having improved fuel economy retention properties
A lubricating oil composition which exhibits improved fuel economy and fuel economy retention which contains the combination of (a) a dithiocarbamate of the formula R1 (R2)N--C(:S)--S--(CH2)n --S--(:S)C--N(R
04/20/1999
5858931Lubricating composition
A lubricating composition of the present invention comprises a base oil for lubricating oil or base grease; at least one molybdenum compound as component (A) selected from the group consisting of a selected sulfurized oxymolybdenum dithiocarbamate, a sele...
01/12/1999
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