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JP5107867B2 |
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JP5106778B2 |
To provide a sludge dispersant for lubrication oil which has a low CCS viscosity at low temperatures, excellent sludge-dispersing ability, shearing stability and resistance to emulsification. The sludge dispersant for lubrication oil con...
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JP5102952B2 |
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JP2012246504A |
To provide a process for preparing of a polymer having at least one of low polydispersity, low temperature viscosity property, high temperature viscosity property, and shear stability and capable of adding dispersing and/or viscosity adj...
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JP5094030B2 |
The present invention provides a low ash engine oil composition which, despite the low ash content, has engine detergency which enables the composition to pass severe detergency tests for diesel engine oils. The engine oil composition co...
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JP5087262B2 |
To provide a lubricating oil composition for an automobile shock absorber capable of moderately increasing the frictional force at a sliding portion of an automobile shock absorber such as the part between a piston rod and an oil seal an...
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JP5086623B2 |
To provide a lubrication system improving lubricant-holding power of a foamed lubricant holding a lubricant component and maintaining the amount of the lubricant at the necessary minimum, having excellent compatibility in the initial lub...
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JP5086511B2 |
This invention is directed to a new low molecular weight copolymer (The PIB/UAR copolymer) that may be prepared by reacting a low molecular weight polyisobutene (PIB) having less than about 32 carbon atoms with an unsaturated acidic reag...
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JP5086624B2 |
To provide a lubrication system improving lubricant-holding power of a foamed lubricant holding a lubricant component and maintaining the amount of the lubricant at the necessary minimum, having excellent compatibility in the initial lub...
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JP5078087B2 |
wherein R1 is hydrogen, a linear or branched alkyl group containing 1 to 5 carbon atoms; A is nitrogen or oxygen; and Y is a free radical leaving group selected from the group consisting of one or more atoms or groups of atoms which may ...
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JP5079407B2 |
A lubricating oil composition for internal combustion engines comprising a base oil having and lubricating viscosity and additives composed of a) a salt of an alkali metal or alkaline earth metal and an alkylsalicylate and/or an alkylcar...
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JP5079200B2 |
The present invention relates to a coating composition comprising a) at least one binder and b) at least one substance which releases gases at elevated temperature, and c) at least one friction-reducing additive. With the aid of the coat...
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JP5070049B2 |
Reaction of a carboxylic acid-containing polymer with certain aromatic amines results in dispersant viscosity modifiers with improved soot handling performance in heavy-duty diesel engines, compared with reaction with non-aromatic amines.
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JP5065041B2 |
Dielectric fluids comprising oil fractions derived from highly paraffinic wax are provided. Further provided are processes for making these dielectric fluids comprising oil fractions derived from highly paraffinic wax. The dielectric flu...
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JP5053839B2 |
Lubricating oil composition having a sulphur content of from 0.01 to 0.3 wt. %, a phosphorus content of from 0.01 to 0.1 wt. % and a sulphated ash content of from 0.1 to 1.2 wt. %, based on the total weight of the lubricating oil composi...
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JP5055841B2 |
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JP5038886B2 |
The invention relates to graft copolymers produced by radically polymerizing polymerisable monomers and, in addition comprising long-chain ethylenically unsaturated compounds which contain alkyl substitutes, in particular acrylates or me...
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JP5039272B2 |
Disclosed is a method of preparing terminally functionalized telechelic polymers using a cationic living polymer product or a terminal tert-chloride chain end of a carbocationic quasiliving polymer product, which comprises quenching the ...
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JP5032029B2 |
To provide a viscosity index improver and a lubricating oil composition having a viscosity index improving effect and an abrasion resistance improving effect. The viscosity index improver comprises a polymer (A) being composed of an alky...
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JP5033422B2 |
An additive mixture as component of compositions of mineral oil as the main component and trace portions of an additive mixture contains the additive components a) ethylene-vinylester copolymers with molecular mass weight averages from 3...
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JP5026669B2 |
The present invention relates to the use of amines and/or Mannich adducts as detergents and/or dispersants in fuel and lubricant compositions for direct-injection gasoline engines. The invention further relates to fuel and lubricant comp...
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JP5019818B2 |
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JP5012645B2 |
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JP5005710B2 |
To provide a viscosity index improving agent excellent in adsorption performance to metal while maintaining a viscosity index improving effect high. The viscosity index improving agent for lubricant comprises an oil-soluble copolymer (A)...
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JP2012518886A |
The invention relates to a transformer oil composition comprising at least one acid interceptor. The invention further relates to the use of acid interceptor in transformer oils for improving stability.
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JP5000823B2 |
A low-phosphorus lubricant comprises: an oil of lubricating viscosity; a nitrogen-containing and a nitrogen-free dispersant; a metal dihydrocarbyl dithiophosphate; and a hydrocarbyl-substituted carboxylic acid derivative, the ratio of th...
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JP4999553B2 |
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JP4996810B2 |
According to the invention there is provided a liquid friction control composition characterized as either having a high and positive friction characteristic or a low and neutral friction characteristic, comprising a retentivity agent. T...
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JP4994030B2 |
A lubricant composition comprising a lubricating base oil, fine particles and a calcium sulfonate-based thickener, a speed reduction gear filled with the lubricant composition, and an electric power steering apparatus comprising the spee...
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JP4975355B2 |
Compounds of formula wherein - R f is a (per)fluoropolyoxyalkylene chain having a number average molecular weight in the range 500-10,000; - W 1 , W 2 , equal to or different from each other, are -F or -CF 3 ; - T 1 is equal to -CHA a -B...
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JP4970775B2 |
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JP4969276B2 |
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JP4966457B2 |
To provide a solid lubricant for hydrofoams comprising a water-soluble or water-dispersible film-forming component exerting, as a whole, excellent, well-balanced performances in terms of its lubricity, defatting property, emulsion resist...
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JP4965228B2 |
To provide a lubricating oil composition having excellent high-temperature cleanness, excellent performances maintaining a base number and having high abrasion inhibitory effects and suitable for diesel engines or direct injecting gasoli...
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JP2012111815A |
To provide a resin composite for dry lubrication coat film formation which can form a dry lubrication coat film having excellent durability against repeated friction and high adhesion while exhibiting superior sliding characteristics wit...
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JP4950667B2 |
The present invention relates to acrylic block copolymers synthesized by a controlled radical process, and their use as thickeners in oil-based compositions. The acrylic copolymers are especially useful as viscosity index improvers in lu...
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JP2012107143A |
To provide a lubricant composition capable of maintaining sufficient oil film thickness despite a low viscosity.The lubricant composition is made by blending poly(meth)acrylate in a base oil, and the poly(meth)acrylate has at least eithe...
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JP4934844B2 |
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JP4939042B2 |
A novel lubricant composition is provided, which is free from an increase in consistency, separation of its lubricant base oil, and leakage of the separated lubricant base oil from a speed reduction gear or the like even if a stress is r...
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JP4934019B2 |
A composition of the reaction product of (a) an isobutylene-diene copolymer having thereon groups containing carboxylic acid functionality or reactive equivalent thereof, derived from an α,β-unsaturated carboxylic compound; and (b) an ...
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JP2012087194A |
To provide a lubricant for metal forming process which excels in adhesion when coated on a high-temperature article to be coated, excels in lubricity and seizure-prevention performance at high temperatures in performing metal forming pro...
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JP4929085B2 |
Producing a dispersant comprises copolymerizing a mixture of C1-4, C8-16 and C17-30 alkyl acrylates with an olefinic carboxylic acylating agent to give an acylated alkyl acrylate copolymer with a weight-average molecular weight of 5000-5...
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JP4927349B2 |
The present invention provides a refrigerating machine oil composition for use in a compressor for a refrigerator in which a sliding surface of at least a part of constitutional members of the compressor is coated with a lubrication film...
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JP4921697B2 |
The present invention provides engine lubricants for low emission diesel engines featuring low levels of ash, sulfur and phosphorus. Specifically, this invention provides a low emission diesel lubricant comprising from about 0 wt. % to a...
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JP4921894B2 |
A double-layer lubrication coating composition is made up of an upper-layer coating composition and a lower-layer coating composition. The upper-layer coating composition is made up of 5o to 70 wt% of an epoxy resin or a polyamide-imide ...
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JP4924103B2 |
A pin-box type threaded joint for steel tubes having a contact surface (30) including a threaded portion and a nonthreaded metal-to-metal contact portion has improved leak resistance, galling resistance, and corrosion resistance particul...
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JP4916630B2 |
To provide a water-based lubricant having high lubricity and favorable in terms of wastewater treatment as well. This water-based lubricant or lubricating oil essentially comprises a suspension or aqueous solution which is prepared by di...
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JP4920846B2 |
Graft copolymers useful as a dispersant-viscosity improver for lubricating oil compositions comprise a hydrocarbon polymer having graft polymerized thereon at least two nitrogen containing units, at least one of the nitrogen containing u...
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JP2012052142A |
To provide alkyl acrylate copolymer dispersants and uses thereof.The novel a polymer dispersant comprises an additive reaction product obtained by reacting a first monomer comprising a mixture of alkylacrylates of varying chain lengths w...
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JP4890908B2 |
To improve the viscosity index and shear stability of a lubricant composition. The lubricant composition contains a polymer containing a mesogen structure in the side chain. The mesogen structure may take a disk-like structure.
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