U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that the Band-Aid Bandage was invented by a Johnson & Johnson employee whose wife had cut herself? Earl Dickson's wife was rather accident prone, so he set out to develop a bandage that she could apply without help. He placed a small piece of gauze in the center of a small piece of surgical tape, and what we know today as the Band Aid bandage was born!

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 508/485 - Esterified alcohol is polyhydroxy alcohol (e.g., pentaerythritol tetraalkanoate, etc.)


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 a single bonded oxygen of one of the-C(=O)O-
No. of patents: 262
Last issue date: 05/29/2012


1              
NumberTitleIssue Date
8188019Biolubricant esters from the alcohols of unsaturated fatty acids
The present invention is generally directed to triester-based lubricant compositions. The present invention is also directed to methods of making these and other similar lubricant compositions. In some embodiments, the methods for making such triester-based lubrican...
05/29/2012
8183190Complex polyol esters with improved performance
A biodegradable lubricant composition containing a complex polyol ester having a polyfunctional alcohol residue and a saturated or unsaturated dicarboxylic acid residue having from about 9 to about 22 carbon atoms. ...
05/22/2012
8110531Lubricant additive composition suitable for lubricating, preventing deposit formation, or clean-up of two-stroke engines
A lubricant composition with a total nitrogen content of 0.1 to 0.25 percent by weight suitable for lubricating a two-stroke engine comprising an oil of lubricating viscosity, a synthetic ester, at least one condensation product of a fatty acid having 12 to 24 carbo...
02/07/2012
8101560Lubricant base oil of palm origin
A cost effective and less energy demanding method of producing ester oils or lubricant base oils, particularly fatty monoesters and fatty polyol esters, by esterifying palm fatty acid, which is abundant from the fat splitting process, with a monohydric alcohol or po...
01/24/2012
8071519Polybasic acid esters and their use in fibre optic cables
A composition comprising a blend of first and second esters: the first ester comprising a reaction product of first reactants comprising trimer acid, first polyhydric alcohol and first monohydric alcohol; the first monohydric alcohol selected from the group of C8-18...
12/06/2011
8058217Metal working fluid
The oil for metal working according to the invention is an oil for metal working comprising a triester of fatty acids and glycerin, wherein the content of oleic acid in the fatty acids is 40-98% by mass based on the total amount of the fatty acids. The oil for metal...
11/15/2011
8044005Lubricant composition and sealed bearing thereof
A rolling bearing, for use in household appliances, having a high degree of quietness, an excellent durability at high temperatures and rotational speeds, a low torque, and excellent fretting property; and a lubricant composition which can be sealed into the rolling...
10/25/2011
7947635Hydrodynamic bearing device and spindle motor using the same
A hydrodynamic bearing device being low in torque, low in power consumption, high in reliability and best suited for miniaturization and a spindle motor using the same. The hydrodynamic bearing device in accordance with the present invention, dynamic pressure...
05/24/2011
7910530Method for improving the air release rate of GTL base stock lubricants using synthetic ester, and composition
A method for improving the air release rate of a Gas-to-Liquids (GTL) base stock and/or base oil by the addition to such base stock and/or base oil of a synthetic ester. ...
03/22/2011
7863229Lubricating compositions
The pour point of a lubricating composition consisting essentially of from about 5 wt % to about 100 wt % of a Group III base stock and from 0 wt % to about 95 wt % of a Group IV base stock is reduced by incorporating in the lubricating composition an effective amou...
01/04/2011
7846883Hydrodynamic bearing device, and spindle motor and information device using the same
A hydrodynamic bearing device, comprising a shaft structure, a sleeve, a dynamic pressure-generating groove which is formed on surface of at least one of a shaft structure and a sleeve, and a lubricant present in a gap between the shaft structure and the sleeve; whe...
12/07/2010
7795193Base for electric insulating oil
A base for electric insulating oil comprising an esterification product from a C8-C20 higher fatty acid and a C6-C14 branched aliphatic monohydric alcohol; or a base for electric insulating oil comprising an esterification...
09/14/2010
7776802Hydrodynamic bearing device, and spindle motor and information device using the same
The invention provides a hydrodynamic bearing device including at least one of a shaft structure and a sleeve having a dynamic pressure-generating mechanism, and a lubricant present in a gap between the shaft structure and the sleeve. The lubricant contains a dieste...
08/17/2010
7625850Lubricating oil composition
A high-temperature lubricating oil composition is provided, which is resistant to hardening and sludge formation, and displays minimal evaporation loss and superior thermal stability, even under practical high-temperature open system conditions such as those found i...
12/01/2009
7544645Triester-based lubricants and methods of making same
The present invention is generally directed to triester-based lubricant compositions. The present invention is also directed to methods of making these and other similar lubricant compositions. In some embodiments, the methods for making such triester-based lubrican...
06/09/2009
7517838Lubricating oil for bearing
Disclosed herein is a lubricating oil for bearings comprising (a) a diester represented by General Formula (1) wherein R1 and R2 are the same or different, and each represents a C3-C
04/14/2009
7517837Biodegradable lubricants
Lubricant compositions based on a biodegradable base oil, such as a polyol ester or polyalkylene glycol, a calcium sulfonate based thickener and a naturally occurring phospholipid as an anti-wear additive, such as lecithin for environmentally sensitive applications ...
04/14/2009
7465696Lubricating base oil compositions and methods for improving fuel economy in an internal combustion engine using same
A lubricating base oil composition is provided comprising (a) at least one Fischer-Tropsch derived lubricating base oil characterized as having a kinematic viscosity of about 2 to about 5 centistoke (cSt) at 100° C.; and (b) at least one polyol ester. Methods for i...
12/16/2008
7459416Fluid bearing unit and spindle motor using the same
The present invention provides a fluid bearing unit capable of achieving lower torque and lower current consumption in comparison with a conventional bearing unit, and a spindle motor using the same. The present invention employs an ester derived from 1,5-pentanedio...
12/02/2008
7423000Non-phosphorous, non-metallic anti-wear compound and friction modifier
There is disclosed a friction reducing compound, comprising an intermediate adduct of a first moiety reacted in a first reaction with a second moiety to form the intermediate adduct and further esterifying or amidafying the intermediate adduct with a third moiety in...
09/09/2008
7339003Antioxidants and antioxidant boosters capable of producing hydroperoxyl radicals
An antioxidant which comprises a primary aliphatic hydroxyl group linked to an organic backbone such that upon oxidation a hydroperoxyl moiety capable of boosting the efficacy of free radical scavengers and hydroperoxide decomposer type antioxidants is generated in ...
03/04/2008
7323260Lubricant, recording medium and carboxylic acid compound
The present invention provides a lubricant capable of holding an excellent lubricating property under various types of service conditions, maintaining a lubricating effect for a long period of time and providing excellent traveling property, abrasion resistance, dur...
01/29/2008
7311814Process for the production of hydrocarbon fluids
Hydrocarbon fluids are produced by hydrocracking a vacuum gas oil stream, fractionating and/or hydrogenating the hydrocracked vacuum gas oil. The fluids typically have ASTM D86 boiling point ranges within the range 100° C. to 400° C. the range being no more than 7...
12/25/2007
7294607Synergistic combination of load supplement additive and corrosion inhibitors for lubricant compositions
The present invention relates to a lubricant composition exhibiting enhanced load-carrying capacity and oxidative/corrosion stability. The lubricant composition of the present invention comprises a major portion of an aliphatic ester base oil having lubrication prop...
11/13/2007
7196042Grease composition and rolling apparatus
A grease composition is produced by mixing a thickener comprising a fluoro resin and a second thickener component (a metallic soap, a complex metallic soap, an N-substituted terephthalamic acid metal salt, organic bentonite or a calcium sulfonate complex) into a bas...
03/27/2007
7176169Refrigerator lubricant compositions
A lubricant composition for use in a rotary vane compressor has a base oil component that comprises an alkylbenzene as a major component thereof and a polyol ester as a minor component thereof. In particular, the base oil component comprises at least 55% by weight o...
02/13/2007
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
7160843Oil-based demulsifying agent and its use in the treatment of drains bored in oil-based mud
An oil-based demulsifying formulation which can be used in the treatment of drains bored in oil-based mud, non ecotoxic and optimally compatible with formation fluids, comprises at least one wetting agent chosen from anionic surfacetants and at least one demulsifier...
01/09/2007
7135441Lubricating grease composition and rolling apparatus
A grease composition is disclosed, wherein a metallic soap-base thickener containing a long-fiber material having a major axis part length of at least 3 μm is blended with a base oil obtained by mixing a lubricating oil having a polar group within the molecule stru...
11/14/2006
7097915Separator plate for manufacturing printed circuit board components
A separator plate for the production of printed circuit board components by pressing individual layers, which separator plate includes a metallic core layer and a coating on at least one side of the core layer, wherein the coating on the core layer, which is made of...
08/29/2006
7081437Environmentally compatible hydrocarbon blend drilling fluid
A method of formulating and the resulting biodegradable wellbore fluid includes a first synthetic internal olefin fraction having from 16 to 18 carbon atoms (C16-18 IO), a second synthetic internal olefin fraction having between 15 to 18 carbon atoms (C
07/25/2006
7071150Biodegradable lubricating composition and uses thereof, in particular in a bore fluid
The invention concerns a biodegradable lubricating composition, based on mineral hydrocarbon oil and ester, comprising a majority amount of a mineral hydrocarbon fraction substantially free of aromatic compounds, said fraction having a normal paraffin content not mo...
07/04/2006
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
7053026Base oil blends for conveyor chain lubricating compositions
A conveyor chain oil for use at elevated temperatures is described comprising a blend of a polyol ester, a poly(isobutylene), and a mineral oil. The blend has low volatility compared to the volatility of its individual components, suffers little change in viscosity ...
05/30/2006
7052626Fluid compositions containing refrigeration oils and chlorine-free fluorocarbon refrigerants
A fluid composition for a refrigerator, which comprises a chlorine-free fluorocarbon refrigerant and a refrigerator oil, said refrigerator oil consisting essentially of a tetraester of pentaerythritol of formula (1)
05/30/2006
7045490Refrigerating machine oil composition
A refrigerating machine oil composition according to the invention comprises an alicyclic polycarboxylic acid ester compound obtained from the following compounds (a) to (c): (a) an alicyclic polycarboxylic acid having an alicyclic...
05/16/2006
7018558Method of improving performance of refrigerant systems
A method of improving performance of refrigerant systems such as refrigerators and air conditioners that utilize a refrigerant working fluid. The working fluid consists essentially of a heat transfer fluid and a lubricant that is miscible and is otherwise compatible...
03/28/2006
7014694Oil-based additive for corrosion inhibitors
An oil-based corrosion inhibitor composition for use in lubricating and/or hydraulic oils includes an oil-soluble sulfonate salt, an imidazoline salt of a fatty acid or a poly acid, and a polymerized ester, with the corrosion inhibitor composition being diluted with...
03/21/2006
7015178Lube base oil composition
Disclosed is a lubricant base oil composition that comprises (a) from 80 to 98% by mass of a naphthenic synthetic lubricant base oil having a flash point of not lower than 140° C. and (b) from 2 to 20% by mass of an alcohol/fatty acid ester having a flash point of ...
03/21/2006
7008909Alpha branched esters for use in metalworking fluids and metalworking fluids containing such esters
Alpha branched esters for use in a metalworking fluid represented by the formula (I): wherein R1, R2, and R3 are each independently selected from a hydrocarbon group having one to thirty...
03/07/2006
1              
 
Sign InRegister
Username  
Password   
forgot password?