Quotables
"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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.
| Number | Title | Issue Date |
| 8129320 | Lubricant oil compositions to optimize internal combustion engine performance The present disclosure relates to lubricant oil compositions formed from base stock oils to optimize internal combustion engine performance. Base stock oils are identified that have selected cetane number characteristics and relatively reduced reactivity to improve ... | 03/06/2012 |
| 7875580 | Antiwear automotive formulations An automotive engine oil comprising a base oil and an antiwear additive system comprising an ester. The antiwear additive system preferably further comprises a phosphorus-containing and/or sulphur-containing antiwear additive. The antiwear additive system of the inv... | 01/25/2011 |
| 7341447 | Delivering manganese from a lubricant source into a fuel combustion system The present invention relates to an apparatus and method for delivering manganese from a lubricant source into a fuel combustion system or to the exhaust therefrom. By the present invention, manganese from the lubricant will interact with phosphorus, sulfur, and/or ... | 03/11/2008 |
| 7339003 | Antioxidants 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 |
| 7135441 | Lubricating 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 |
| 7045490 | Refrigerating 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 |
| 6713438 | High performance engine oil High performance engine oils and other liquid lubricants comprise a liquid lubricant basestock of low viscosity from 1.5 to 12 cSt (100C) with two dissolved polymer components of differing molecular weights. The basestock is preferably a single PAO or blend of PAOs ... | 03/30/2004 |
| 6649574 | Biodegradable non-toxic gear oil A biodegradable lubricating oil composition especially useful as a gear oil employs a synthetic alcohol ester basestock formed from mono- and dipentaerythritol with certain mono- and dicarboxylic acids or dicarboxylic acid anhydrides and an effective amou... | 11/18/2003 |
| 6544937 | Demulsification of industrial lubricants containing naphthenic basestocks A lubricating composition containing naphthenic basestocks has demulsification properties improved by the addition of a demulsification additive selected from oxyalkylated glycols, esters of oxyalkylated glycols and mixtures thereof.... | 04/08/2003 |
| 6462001 | Complex esters, formulations comprising these esters and use thereof An ester resulting from an esterification reaction between at least one polyfunctional alcohol and at least one polyfunctional carboxylic acid using a chain stopping agent to form ester bonds with the remaining hydroxyl or carboxyl groups is disclosed. Th... | 10/08/2002 |
| 6376435 | Lubrication system for internal combustion engines (law952) A binary two phase engine oil composition having two substantially immiscible liquid phases exhibits improved fuel economy which is maintained over an extended period. The first liquid phase comprises a base oil, natural or synthetic. The second liquid ph... | 04/23/2002 |
| 6310012 | Extreme pressure agent, friction coefficient modifier, and functional fluids An extreme pressure agent and a friction coefficient modifier which comprises a compound having, in a molecule, a group represented by general formula (I): ##STR1## wherein R1, R2, and R3 each represents hydrogen atom or ... | 10/30/2001 |
| 6268319 | Slide way lubricant composition, method of making and method of using same A slide way lubricant composition includes at least (a) a hydrotreated petroleum having a viscosity of from about 10 cSt to about 250 cSt as measured at 40° C. and consisting predominately of hydrocarbons having from about 15 to about 50 carbon atoms per... | 07/31/2001 |
| 6267906 | Polyol ester lubricants for refrigerating compressors operating at high temperature A high quality lubricant for heavy duty service air conditioner and refrigerator compressors, especially those using chlorine free hydrofluorocarbon refrigerant working fluids, is provided by mixed esters of hindered polyols, most desirably di-pentaerythr... | 07/31/2001 |
| 6258293 | Refrigeration cycle A refrigerating apparatus comprising a refrigeration cycle comprising at least a compressor, a condenser, a dryer, an expansion mechanism and an evaporator, a refrigerant composed mainly of a fluorocarbon type refrigerant containing no chlorine and having... | 07/10/2001 |
| 6221272 | Polyol ester lubricants for hermetically sealed refrigerating compressors A high quality lubricant for hermetically sealed domestic air conditioner and refrigerator compressors, especially those using chlorine free hydrofluorocarbon refrigerant working fluids, is provided by mixed esters of hindered polyols, most desirably pent... | 04/24/2001 |
| 6197731 | Smokeless two-cycle engine lubricants Ester base stocks for two-cycle gasoline engine lubricant compositions are disclosed which produce lower amounts of observable smoke in the exhaust emitted as a result of combustion in a two-cycle gasoline engine, require no miscibility-enhancing solvents... | 03/06/2001 |
| 6153118 | Fluid compositions containing refrigerator oils and chlorine-free fluorocarbon refrigerants A refrigerator oil for use in compressors using therein a hydrogen-containing halogenocarbon as a refrigerant, consisting essentially of as a base oil at least two esters selected from the group consisting of a specific pentaerythritol ester such as an es... | 11/28/2000 |
| 6010989 | Additive for improving the flow properties of mineral oils and mineral oil distillates The invention relates to an additive for improving the flow properties of paraffin-containing mineral oils and mineral oil distillates, comprising a mixture of at least one ethylene/vinyl ester copolymer or terpolymer and at least one paraffin dispersant,... | 01/04/2000 |
| 5942475 | Engine oil lubricants formed from complex alcohol esters A crankcase engine lubricant which comprises the add mixture of the following components: (A) a lubricating oil which comprises the add mixture of the following components: a complex alcohol ester basestock and at least one additional basestock; and (B) a... | 08/24/1999 |
| 5925602 | Smokeless two-cycle engine lubricants Ester base stocks for two-cycle gasoline engine lubricant compositions are disclosed which produce lower amounts of observable smoke in the exhaust emitted as a result of combustion in a two-cycle gasoline engine, require no miscibility-enhancing solvents... | 07/20/1999 |
| 5922658 | Two-cycle engine oil formed from a blend of a complex alcohol ester and other basestocks A biodegradable two-cycle lubricant which is prepared from an add mixture of: (1) a biodegradable lubricating oil comprising an add mixture of the following components: a complex alcohol ester basestock which comprises the reaction product of an add mixtu... | 07/13/1999 |
| 5916854 | Biodegradable lubricating base oil, lubricating oil composition containing the same and the use thereof A biodegradable lubricating base oil obtained by carrying out an addition reaction of an alkylene oxide and a transesterification in a mixture of fats and oils, a polyhydric alcohol or an aliphatic carboxylic acid, and an alkylene oxide, the mixture conta... | 06/29/1999 |
| 5912214 | Smokeless two-cycle engine lubricants Ester base stocks for two-cycle gasoline engine lubricant compositions are disclosed which produce lower amounts of observable smoke in the exhaust emitted as a result of combustion in a two-cycle gasoline engine, require no miscibility-enhancing solvents... | 06/15/1999 |
| 5854185 | Lubricant mixtures and grease compositions based thereon The present invention provides lubricant mixtures for use as base fluid in bearing grease comprising 25 to 90 percent w/w of a liquid ester having a viscosity at 40° C. in the range 100 to 200 mm2 /s, and 75 to 10 percent w/w of a liquid poly-... | 12/29/1998 |
| 5853609 | Polyol ester lubricants for hermetically sealed refrigerating compressors A high quality lubricant for hermetically sealed domestic air conditioner and refrigerator compressors, especially those using chlorine free hydrofluorocarbon refrigerant working fluids, is provided by mixed esters of hindered polyols, most desirably pent... | 12/29/1998 |
| 5851968 | Increasing the electrical resistivity of ester lubricants, especially for use with hydrofluorocarbon refrigerants The electrical resistivity of hindered polyol ester lubricants can be raised to very high levels by treating the lubricants with activated alumina, preferably after the acid values of the lubricants treated have already been reduced to low levels by conve... | 12/22/1998 |
| 5840666 | Grease composition A grease composition comprising a base oil, a thickener selected from a metallic soap and a urea compound, and an inorganic filler having an average particle size of not greater than 2 μm, and a rolling bearing having sealed therein a grease composition ... | 11/24/1998 |
| 5780399 | Oil-soluble polyester, additive for lubricating oil, and lubricating oil composition An oil-soluble polyester having a weight average molecular weight of 10,000 to 1 000,000, which is a polycondensate prepared by polycondensing the following ingredients (A), (B) and (C): (A) a divalent higher carboxylic acid ingredient, (B) a divalent alcohol ... | 07/14/1998 |
| 5750750 | High viscosity complex alcohol esters A complex alcohol ester which comprises the reaction product of an add mixture of the following: a polyhydroxyl compound represented by the general formula: R(OH)n wherein R is any aliphatic or cyclo-aliphatic hydrocarbyl group and n is at leas... | 05/12/1998 |
| 5744434 | Polyol ester compositions with unconverted hydroxyl groups A synthetic ester composition which exhibits thermal and oxidative stability, lower friction coefficient and lower wear, wherein the ester composition comprises the reaction product of: a branched or linear alcohol having the general formula R(OH)n | 04/28/1998 |
| 5744432 | Stamping lubricants Water-based stamping lubricants are comprised of: (1) water; (2) a polyester that is water-soluble or readily emulsifiable made by reacting one or more dicarboxylic acids and a polyalkylene glycol; (3) one or more ethoxylated alkylalcohols; (4) the salt o... | 04/28/1998 |
| 5736492 | Alkenyl-substituted dicarboxylic derivatives The invention provides alkenyl-substituted dicarboxylic derivatives, having (a) an alkenyl group derived from an atactic propylene oligomer substantially of the formula ##STR1## where n is in the range 15 to 120, having number average molecular weigh... | 04/07/1998 |
| 5721336 | Lubricant and release agent for rubber A lubricant and release agent for rubber is made from a polyester of a polyethylene glycol or a mixture of polyethylene glycols with an average of 3 to 20 ethylene oxide units per molecule and a linear dicarboxylic acid or a mixture of linear dicarboxylic... | 02/24/1998 |
| 5716916 | Polyol ester based-lubricant A polyol ester-based lubricant comprising a polyol ester (A) and a polyol ester (B); the polyol ester (A) comprising an ester of a neopentyl polyol and an acid residue of carbon number of 6-17, in which alpha-carbon in the acid residue of the polyol ester... | 02/10/1998 |
| 5681800 | Biodegradable branched synthetic ester base stocks and lubricants formed therefrom A biodegradable synthetic ester base stock which comprises a blend of the following base stocks: (A) the reaction product of: (1) a branched or linear alcohol having the general formula R(OH)n, wherein R is an aliphatic or cyclo-aliphatic group... | 10/28/1997 |
| 5674822 | Synthetic ester base stocks for low emission lubricants A low emissions, high oxidative stability crankcase lubricating oil formulation which is prepared from a base stock which comprises at least one synthetic ester selected from the group consisting of: polyol esters, synthetic esters having between 5-35% un... | 10/07/1997 |
| 5665686 | Polyol ester compositions with unconverted hydroxyl groups A synthetic ester composition exhibiting thermal and oxidative stability which comprises the reaction product of: a branched or linear alcohol having the general formula K(OH)n, wherein R is an aliphatic or cyclo-aliphatic group having from abo... | 09/09/1997 |
| 5620950 | Lubricated refrigerant composition containing alicyclic epoxy compounds The objective of the present invention resides in providing a lubricant for refrigerators that reacts rapidly with free acids and contains a stabilizer that has good compatibility with a chlorine-free Flon-thpe coolant such as Flon 134a and the like whose... | 04/15/1997 |
| 5503762 | Base oils with a high viscosity index and improved low-temperature behavior A base oil with a high viscosity index and low pour point which is a mixture of a complex ester formed from aliphatic, cycloaliphatic or aromatic dicarboxylic acids, aliphatic polyols containing 2 to 6 hydroxyl groups and aliphatic monocarboxylic acids co... | 04/02/1996 |
