CN105154179A - Burnup saving type engine oil composition - Google Patents
Burnup saving type engine oil composition Download PDFInfo
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- CN105154179A CN105154179A CN201510511607.0A CN201510511607A CN105154179A CN 105154179 A CN105154179 A CN 105154179A CN 201510511607 A CN201510511607 A CN 201510511607A CN 105154179 A CN105154179 A CN 105154179A
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Abstract
The fuel-saving engine oil composition comprises a mineral oil-based and/or synthetic oil-based base oil for a lubricating oil containing not less than 30 mass% dicarboxylic acid diester with a molecular weight of 400-450 represented by formula (1) (wherein R<SP>1</SP>and R<SP>2</SP>each independently denotes a 1-16C hydrocarbon group; and R<SP>3</SP>denotes a 6-10C divalent hydrocarbon group) and an organomolybdenum compound in an amount of not less than 0.03 mass% in terms of the amount of molybdenum (Mo).
Description
The application to be the application number submitted on February 27th, 2009 be 200910008396.3, name is called the divisional application of the Chinese invention patent application of " burnup saving type engine oil composition ".
Technical field
The present invention relates to the burnup saving type engine oil of lubricant base and the organic molybdenum comprised containing specific diester, relate to because of in low vapo(u)rability for the functional of environment and the good burnup saving type engine oil of low-temperature viscosity profiles.
Background technology
In recent years, in order to prevent global warming, the burnup characteristics of automobile is made to improve and suppress CO
2the cry of discharge very high.In order to make the burnup characteristics of automobile improve, the importantly high efficiency of engine, adopts the technology of lean burnization and straight sprayization in petrol engine.On the other hand, the friction reducing engine is also conducive to the raising of burnup characteristics, so take to use low-friction material to slide unit or adopt the method for burnup saving type engine oil.
As burnup saving type engine oil, known following machine oil is effective: the additive (friction regulator reduced as making friction, below also FM is claimed), mix the organomolybdenum FM such as molybdenum dithiocarbamate (MoDTC), its viscosity is low to moderate the machine oil of 5W-20 or 0W-20 according to the viscosity classification of SAE (american car Engineering society) J300 defined simultaneously.
But about further lowering viscousity, known lowering viscousity such as in high temperature range causes the problems such as the increase of wearing and tearing, and the lowering viscousity in low temperature range needs to make base oil lowering viscousity further, therefore the vaporization losses of machine oil strengthens.So, even if be starved of the machine oil that lowering viscousity vapo(u)rability also can not worsen, or there is low vapo(u)rability and the good machine oil of viscosity characteristics.
Non-patent literature 1:K.Hoshino etc., the fuel efficiency (FuelEfficiencyofSAE5W-20FrictionModifiedGasolineEngineOi l) of the petrol engine machine oil through friction adjustment of SAE5W-20, SAE technical article 982506 (1998)
Summary of the invention
In view of the foregoing, the present invention using providing, there is low vapo(u)rability and the good burnup saving type engine oil of low-temperature viscosity profiles as problem.
The present inventor in order to solve above-mentioned problem to forming the various lubricating oil bases of machine oil, lubricating oil additive conscientiously studies rear discovery, the base oil combining also fusion with specified quantitative as specific dicarboxylic diester and the specific organic molybdenum of lubricant base and obtain has low vapo(u)rability, demonstrates good province's burnup simultaneously.The present invention is the invention completed based on described discovery.
Namely, the present invention comprises Dormant oils class and/or synthesizes the lubricant base of oils and the lubricant composition for internal combustion engines of organic molybdenum, described lubricant base contains the dicarboxylic diester of the molecular weight 400 ~ 450 represented with following general formula (1) of more than 30 quality %, the content of described organic molybdenum with molybdenum (Mo) gauge at more than 0.03 quality %.
In formula, R
1, R
2separately represent the alkyl of carbon number 1 ~ 16, R
3represent the divalent alkyl of carbon number 6 ~ 10.
In the present invention, dicarboxylic diester is better dibutoxyethyl sebacate, and organic molybdenum is better molybdenum dithiocarbamate (MoDTC).In addition, kinematic viscosity during 100 DEG C of described lubricant base is better at 4.2mm
2/ below s.It is that the alkyl disulfide of 0.01 ~ 0.08 quality % is for zinc phosphate (ZnDTP) that burnup saving type engine oil composition of the present invention can also contain with phosphorus (P) gauge.
Burnup saving type engine oil of the present invention adopts formation as above, even if so use for a long time, the vaporization losses of oil is also less, and low-temperature viscosity profiles is good, and the province's burnup therefore in low temperature range is good especially.Therefore, as not polluting the environment and showing the excellent machine oil of the Practical Performance of good startability and the province's burnup after just starting, be very useful.
Embodiment
Below, burnup saving type engine oil composition of the present invention is described in detail.
The dicarboxylic diester used in the present invention represents with following general formula (1), and being generally the compound having the dicarboxylic acid of 2 carboxyls and monohydroxy-alcohol esterification in molecule and obtain, is the a kind of lubricant base forming machine oil.
In general formula (1), R
1, R
2represent the alkyl of the carbon number 1 ~ 16 corresponding with the residue of described monohydroxy-alcohol, they can be identical or different.R
3represent the divalent alkyl of the carbon number 6 ~ 10 corresponding with the alkyl of the main chain forming described dicarboxylic acid.R
3carbon number less than 6 time, exist vaporization losses increase tendency, so be undesirable; In addition, if R
3carbon number more than 10, then low-temperature viscosity profiles worsen.R
3during divalent alkyl for carbon number 6 ~ 10, as dicarboxylic acid, corresponding to the dicarboxylic acid of carbon number 8 ~ 12.Specifically, suberic acid diester, di azelate, dibutoxyethyl sebacate, undecane diacid diester and dodecanedioic acid diester can be exemplified, wherein preferably dibutoxyethyl sebacate.
In the present invention, use the dicarboxylic diester of molecular weight 400 ~ 450, molecular weight is better 420 ~ 430.When molecular weight is less than 400, vaporization losses increases; On the other hand, when molecular weight is greater than 450, good low-temperature viscosity profiles cannot be obtained.The dicarboxylic diester of such molecular weight in specified range can (residue be R by suitably selecting the monohydroxy-alcohol of above-mentioned dicarboxylic acid and carbon number 1 ~ 16
1, R
2) carry out esterification and obtain.The dicarboxylic diester mixture multiple dicarboxylic acid and multiple monohydroxy-alcohol esterification obtained still may comprise the dicarboxylic diester of molecular weight inside and outside the scope of 400 ~ 450.Under such circumstances, two ester mixture refining spearation of synthesis gained can be obtained the dicarboxylic diester of molecular weight 400 ~ 450.In order to obtain the dicarboxylic diester of molecular weight 400 ~ 450 efficiently, being better the monohydroxy-alcohol mixture using carbon number close, can refining step being simplified by this.If only use a kind of monohydroxy-alcohol, then the molecular weight of resultant does not have difference, so can be described as the most efficient.Such as, being roughly 400 ~ 450 by the molecular weight of the dibutoxyethyl sebacate obtained with enanthol, octanol and nonyl alcohol esterification by sebacic acid, not needing to carry out separation and purification to the dibutoxyethyl sebacate of synthesis gained especially to adjust molecular weight.The molecular weight of the dioctyl sebacate synthesized by sebacic acid and octanol is 426, is one of dicarboxylic diester that most preferably can use in the present invention.Therefore, R
1, R
2the alkyl such as alkyl, alkenyl of preferred carbon number 6 ~ 12 is better wherein heptyl, octyl group, nonyl, particularly preferably octyl group.Alkyl can be straight chain or branch, from lubricating property, is more preferably the alkyl of straight chain.
In the present invention, the evaporation characteristic of dicarboxylic diester is arbitrary, and NOACK steam output is better at below 18 quality %, is more preferably below 17.5 quality %, particularly preferably below 17 quality %.
In the present invention, lubricant base is made up of with other lubricant base the dicarboxylic diester of the molecular weight 400 ~ 450 specified with above-mentioned general formula (1).As other lubricating oil, Dormant oils class base oil, other synthesis oils base oil except above-mentioned dicarboxylic diester can be exemplified.
As Dormant oils class base oil, specifically can illustrate following base oil: atmospheric resids underpressure distillation crude oil underpressure distillation obtained, the lubricating oil distillate of gained carried out to more than a kind in the process such as solvent deasphalting, solvent extraction, hydrocracking, solvent dewaxing, hydrofining and refine the base oil obtained; Or, as the isomerized oil of the wax of by product generation in refining step; Carbon monoxide and hydrogen are carried out the isomerization wet goods of GTL (cyclostrophic liquid, the gastoliquid) wax that Fischer-Tropsch process is synthesized into.
As other synthesis oils base oil, diester, fatty acid ester, polyol ester, complex ester, poly-alpha olefins, polybutene etc. beyond the dicarboxylic diester that can exemplify the molecular weight 400 ~ 450 specified divided by general formula (1).
In the present invention, above-mentioned Dormant oils class base oil and other synthesis oils base oil Dormant oils can be used alone, or use the mixture of arbitrary proportion of multiple base oil respectively.Such as, the mixing wet goods of synthesis oils base oil of the Dormant oils class base oil of more than a kind, the synthesis oils base oil of more than a kind, the Dormant oils class base oil of more than a kind and more than a kind can be used.Wherein, Dormant oils class base oil, poly-alpha olefins class base oil can preferably be used.
In the present invention, the content of the dicarboxylic diester of the molecular weight 400 ~ 450 represented with general formula (1) in lubricant base for benchmark is at more than 30 quality % with the total amount of lubricant base, is better more than 40 quality %, is more preferably more than 50 quality %.The content of dicarboxylic diester with the total amount of lubricant base for benchmark less than 30 quality % time, cannot meet such as-35 DEG C time CCS viscosity at the target low viscosity characteristics of below 4000mPas.The upper limit for the content of dicarboxylic diester is not particularly limited, and can be 100%, from the angle of sealing material swelling, is better at below 80 quality %, is more preferably below 70 quality % with the total amount of lubricant base for benchmark.If the ratio of ester is too high, then exists and produce dysgenic tendency to sealing material, this tendency also exists in the ester except above-mentioned dicarboxylic diester.Therefore, be only undesirable with the mixture of the diester except dicarboxylic diester, polyol ester.From such angle, as the synthesis oils base oil used together with above-mentioned dicarboxylic diester, also particularly preferably poly-alpha olefins.
The kinematic viscosity of 100 DEG C of the lubricant base containing the dicarboxylic diester specified in the present invention is better at 4.2mm
2/ below s, is more preferably 3.9mm
2/ below s, particularly preferably 3.6mm
2/ below s.The kinematic viscosity of 100 DEG C of lubricant base is greater than 4.2mm
2during/s, good low-temperature viscosity profiles cannot be obtained.In addition, the viscosity index of lubricant base is better more than 120, particularly preferably more than 130.When the viscosity index of lubricant base is less than 120, good province's burnup characteristics cannot be obtained.
Burnup saving type engine oil composition of the present invention comprises with the organic molybdenum of molybdenum (Mo) gauge at more than 0.03 quality %.During less than 0.03 quality %, enough province's burnup persistence cannot be obtained.As organic molybdenum, molybdenum dithiocarbamate (MoDTC), molybdenum dithiophosphate (MoDTP), molybdenum amine complex etc. specifically can be exemplified.Wherein, preferably MoDTC, MoDTP make the three-way catalyst of waste-gas cleaning poisoning due to phosphorus, therefore not ideal.
In the present invention, as MoDTC, the compound represented with following general formula (2) preferably can be used.
In formula, R
4~ R
7represent the straight chain of carbon number 4 ~ 18 and/or the alkyl of branch and/or alkenyl, X represents Sauerstoffatom or sulphur atom, and the ratio of this Sauerstoffatom and sulphur atom is 1/3 ~ 3/1.R
4~ R
7be better alkyl, the particularly preferably alkyl of the branch of carbon number 8 ~ 14, specifically can exemplify butyl, 2-ethylhexyl, isotridecyl, stearyl etc.Be present in 4 R in 1 molecule
4~ R
7can be identical or different.In addition, also can by two or more R
4~ R
7different MoDTC is used in combination.
Burnup saving type engine oil composition of the present invention is better also containing being that the alkyl disulfide of 0.01 ~ 0.08 quality % is for zinc phosphate (ZnDTP) with phosphorus (P) gauge.As such ZnDTP, the compound represented with following general formula (3) can be exemplified.
In above-mentioned general formula (3), R
8, R
9, R
10and R
11separately represent the alkyl of carbon number 1 ~ 24.These alkyl are the alkylaryl of the alkyl of the straight-chain of carbon number 1 ~ 24 or branch-like, the straight-chain of carbon number 3 ~ 24 or the alkyl-cycloalkyl of the alkenyl of branch-like or straight-chain or branch-like, the aryl of carbon number 6 ~ 18 or straight-chain or branch-like.In addition, alkyl and alkenyl can be any one in primary, secondary and tertiary.
At least the content of ZnDTP counts 0.01 ~ 0.08 quality %, particularly preferably 0.05 ~ 0.08 quality % relative to the gross weight of machine oil with phosphorus (P) the metallic element weight contained by ZnDTP.Phosphorus metallic element weight contained by ZnDTP relative to the gross weight of machine oil less than 0.01 quality % time, enough frictions cannot be obtained and prevent performance; When being greater than 0.08 quality %, the impact aggravation making the exhaust gas purifying catalyst of automobile poisoning.
The dicarboxylic diester of the molecular weight 400 ~ 450 that burnup saving type engine oil composition of the present invention is represented with general formula (1) by fusion, other lubricant base (Dormant oils class base oil and other synthesis oils base oil), organic molybdenum and alkyl disulfide are made for zinc phosphate (ZnDTP) and other various additive for lubricant known.The blending procedure of these fusion base materials is not particularly limited, and can adopt any method that can obtain the engine oil base oil of homogeneous proterties.
The lubricant base of the dicarboxylic diester of the molecular weight 400 ~ 450 that can represent in order to general formula (1) and the dicarboxylic diester of other lubricant base modulation containing more than 30 quality %, in this lubricant base, add the organic molybdenum of specified amount, alkyl disulfide is for zinc phosphate and other various additive for lubricant and mix, thus make the engine oil base oil of homogeneous proterties.Lubricant base in fact not necessarily needs modulation, in the dicarboxylic diester of the molecular weight 400 ~ 450 represented with general formula (1) at more than 30 quality % and other lubricant base below 70 quality % ratio be contained in burnup saving type engine oil composition.If the viscosity index improving agent making addition more is about 10 quality %, then the incorporation of additive is 17 or 18 quality % ~ 22 or about 23 quality %, so the ratio shared by lubricant base reaches about 77 quality % ~ 82 quality %.Therefore, the dicarboxylic diester of the molecular weight 400 ~ 450 represented with general formula (1) can mix in the condition of more than about 25 quality % by the content relative to burnup saving type engine oil composition.
In order to balance guarantees the performance as lubricating oil well, burnup saving type engine oil composition of the present invention can mix various additives than that described above.Particularly in order to ensure good spatter property and greasy filth dispersiveness, be better comprise metal species purification agent and ashless dispersant.As metal species purification agent, be better use at least one alkaline-earth metal purification agent being selected from alkaline earth metal sulfonate, alkaline earth phenate and alkaline earth metal salicylate.
As alkaline earth metal sulfonate, can use molecular weight 300 ~ 1500, particularly preferably 400 ~ 700 alkaline earth salt, particularly magnesium salts and/or the calcium salt of alkyl aryl sulfonate, be better calcium salt.
As alkaline earth phenate, can exemplified by alkyl groups phenol, alkylphenol sulfide, alkylphenol the alkaline earth salt of Mannich reaction products, particularly magnesium salts and/or calcium salt, can exemplify such as with the compound that following general formula (4) ~ (6) represent.
In above-mentioned general formula (4) ~ (6), R
12~ R
17separately represent carbon number 4 ~ 30, be better the straight chain of 6 ~ 18 or the alkyl of branch, M
1, M
2and M
3represent alkaline-earth metal respectively, be better calcium and/or magnesium, x represents 1 or 2.
As alkaline earth metal salicylate, can the salicylic alkaline earth salt of exemplified by alkyl groups, particularly preferably magnesium salts and/or calcium salt, can exemplify such as with the compound that following general formula (7) represents.
In above-mentioned general formula (7), R
18represent carbon number 1 ~ 30, be better the straight chain of 6 ~ 18 or the alkyl of branch, p represents the integer of 1 ~ 4, is better 1 ~ 2, M
4representing alkaline-earth metal, is better calcium and/or magnesium.
The content of the metal species purification agent in burnup saving type engine oil composition of the present invention is arbitrary, and relative to the gross weight of burnup saving type engine oil composition, content it is desirable to 0.05 ~ 0.22 quality % with metal gauge, is better 0.1 ~ 0.2 quality %.
In addition, as ashless dispersant, can exemplify by the alkenyl succinimide of polyolefin derivative, alkyl succinimides and their derivative.Representational succinimide can by average obtaining containing the reaction of the polyalkylene polyamine of 4 ~ 10 (being better 5 ~ 7) nitrogen-atoms with the alkenyl of high molecular or alkyl substituted succinyl oxide and every 1 molecule.The alkenyl of high molecular or alkyl to be better number-average molecular weight be 700 ~ 5000 polyisobutene, particularly preferably number-average molecular weight is the polyisobutene of 900 ~ 3000.
As the polybutenyl succinic imide that can preferably use in burnup saving type engine oil composition of the present invention, the compound represented with following general formula (8) or (9) can be exemplified.
In formula (8) and (9), R
19~ R
21represent polybutylene-based, polybutylene-based is the group obtained by the polybutene making the polymerization of mixtures of high-purity isobutylene or 1-butylene and iso-butylene with boron fluoride class catalyzer or aluminum chloride class catalyzer and obtain, and the content at polybutene end with the group of vinylidene structure is generally 5 ~ 100mol%.From the angle obtaining good sludge inhibiting effect, n is better the integer of 2 ~ 5, particularly preferably the integer of 3 ~ 4.
In addition, as the imido derivative of polybutenyl succinic, the oxygen-containing organic compound such as the boron compounds such as boric acid or alcohol, aldehyde, ketone, alkylphenol, cyclic carbonate, organic acid can be made to act on the compound represented with above-mentioned formula (8) or (9), by remaining amino and/or imino moiety or all neutralization or amidations, make so-called modification succinimide and use.Especially, be favourable by alkenyl (or alkyl) succinimide of the boracic be obtained by reacting with boron compounds such as boric acid in thermostability and oxidative stability.
The content of the ashless dispersant in the present invention is arbitrary, and relative to the gross weight of burnup saving type engine oil composition, content it is desirable to 0.5 ~ 15 quality %.
The additives such as the antioxidant of ashless class, viscosity index improving agent, yield point depressant, metal passivator, rust-preventive agent and defoamer can be added as required in machine oil of the present invention.
Embodiment
Below, by embodiment, the present invention is specifically described.
As Dormant oils class base oil, adopt the generation oil obtained the hydrocracking by heavy oil to carry out Hydrodewaxing and obtain 100 DEG C time kinematic viscosity be 4.3mm
2the base oil of/s.
As the dicarboxylic diester (hereinafter referred to as diester of the present invention) of the molecular weight 400 ~ 450 represented with general formula (1), kinematic viscosity when adopting 100 DEG C is 3.2mm
2/ s, molecular weight are the dioctyl sebacate of 426.
In addition, as the comparison diester not meeting diester of the present invention, kinematic viscosity when adopting 100 DEG C is 3.6mm
2/ s, molecular weight are the diisodecyl adipate of 426, and kinematic viscosity when 100 DEG C is 2.3mm
2/ s, molecular weight be 370 Octyl adipate and 100 DEG C time kinematic viscosity be 3.4mm
2the heptanoate of the TriMethylolPropane(TMP) (TMP) of/s.
As additive, adopt following material.
MoDTC: adopt and represent with general formula (2), substituent R
4~ R
7for the mixture of 2-ethylhexyl and isotridecyl, the ratio X of Sauerstoffatom and sulphur atom is 1/1.
ZnDTP: adopt and represent with general formula (3), hydrocarbyl substituent R
8~ R
11for ZnDTP and the hydrocarbyl substituent R of C8 primary alkyl
8~ R
11for the mixing ZnDTP (mixed weight=58/32) of the ZnDTP of the secondary alkyl of C4/C5.
Calcium sulphonate: neutral calcium sulfonate and high alkaline calcium sulfonate
Alkenyl succinimide: high molecular succinimide and boron modification succinimide
Viscosity index improving agent: the polymethacrylate of molecular weight about 300,000
Other additive: adopt the compositions of additives formed by antioxidant (alkylated diphenylamine, hindered phenol) and defoamer.Further, its incorporation is all identical in embodiment with comparative example.
By the diester of diester of the present invention, comparative example, TMP heptanoate and Dormant oils class base oil with the ratio mixing shown in the hurdle of the lubricant base on table 1 top, make lubricant base.The ratio recorded using table 1 in the lubricant base obtained adds MoDTC, ZnDTP, calcium sulphonate, alkenyl succinimide, viscosity index improving agent and other additive as so-called combined additive, mixes.Further, in additive, except viscosity index improving agent, add with identical addition in all embodiments with comparative example.For viscosity index improving agent, the condition reaching 2.6mPas with TBS viscosity when 150 DEG C adjusts addition.Further, TBS viscosity is used to the high-temperature high shear viscosity of the evaluation of machine oil.According to ASTMD4683, measure temperature 150 DEG C, velocity of shear 1 × 10
6s
-1condition under the rotor torque that produces of machine oil viscosity impedance, calculated by the calibration curve of being tried to achieve by standard oil.TBS is the abbreviation of conical bearing analog machine (TaperedBearingSimulator).
[table 1]
For the machine oil of the embodiment 1 ~ 2 as above made and comparative example 1 ~ 5, CCS viscosity when measuring-35 DEG C according to ASTMD5293 respectively, then implement NOACK test according to ASTMD5800, the vaporization losses of the machine oil after 1 hour when measuring 250 DEG C.Their result is shown in table 1 bottom.
Further, the 0W level that the low temperature viscosity for SAE (american car Engineering society) J300 defined is classified, CCS viscosity when specifying-35 DEG C is at below 6200mPas.In addition, by Japan-US automotive industry association found by formulate and certification machine oil international standards for the purpose of council ILSAC in GF-4 standard, the criterion of acceptability of the vapo(u)rability tested based on NOACK is defined as below 15 quality %.
As shown in table 1, the engine oil base oil of embodiment 1 and 2 not only NOACK vapo(u)rability meets below the 15 quality % of ILSACGF-4 standard, and CCS viscosity when-35 DEG C is 3150mPas and 2470mPas, there is the low value of below the 4000mPas of below the 6200mPas of the prescribed value far below the 0W level as SAE.Therefore, said composition can be predicted in low temperature range, particularly play good province's burnup.
On the other hand, although confirm not use the comparative example 1 NOACK vapo(u)rability of the dicarboxylic diester specified in the present invention to meet ILSACGF-4 standard, low-temperature viscosity profiles is poor.In addition, the CCS viscosity when comparative example 2 that the incorporation of ester group oil is few also cannot meet-35 DEG C is in the standard of below 4000mPas.Although meet molecular weight ranges but dicarboxylic acid adopts the cold property of comparative example 3 of hexanodioic acid poor, NOACK vapo(u)rability is also poor.Confirm to adopt the NOACK vapo(u)rability of the comparative example 4 of low-molecular-weight ester poor, adopt the cold property of the comparative example 5 of the polyol ester of high molecular poor.
Claims (3)
1. a burnup saving type engine oil composition, it is characterized in that, comprise lubricant base and the organic molybdenum of Dormant oils class and/or synthesis oils, described lubricant base contains the dioctyl sebacate of 40 quality % ~ 70 quality %, and kinematic viscosity when its 100 DEG C is at 4.2mm
2/ below s; The content of described organic molybdenum with molybdenum (Mo) gauge at more than 0.03 quality %.
2. burnup saving type engine oil composition as claimed in claim 1, it is characterized in that, described organic molybdenum is molybdenum dithiocarbamate (MoDTC).
3. burnup saving type engine oil composition as claimed in claim 1 or 2, is characterized in that, also containing with phosphorus (P) gauge is that the alkyl disulfide of 0.01 ~ 0.08 quality % is for zinc phosphate (ZnDTP).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-048370 | 2008-02-28 | ||
| JP2008048370A JP5271566B2 (en) | 2008-02-28 | 2008-02-28 | Fuel-saving engine oil composition |
| CN200910008396A CN101519618A (en) | 2008-02-28 | 2009-02-27 | Burnup saving type engine oil composition |
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|---|---|---|---|
| CN200910008396A Division CN101519618A (en) | 2008-02-28 | 2009-02-27 | Burnup saving type engine oil composition |
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| CN110799632A (en) * | 2017-07-11 | 2020-02-14 | 株式会社Adeka | Method for stabilizing the dispersibility of organomolybdenum compounds in base oils over a long period of time |
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| JP6373857B2 (en) * | 2013-10-18 | 2018-08-15 | Ｊｘｔｇエネルギー株式会社 | Lubricating oil composition |
| EP3124580A1 (en) * | 2015-07-31 | 2017-02-01 | Total Marketing Services | Branched diesters for use to reduce the fuel consumption of an engine |
| FR3069864B1 (en) * | 2017-08-03 | 2019-08-16 | Total Marketing Services | LUBRICATING COMPOSITION COMPRISING A DIESTER |
| CN113574143B (en) * | 2019-03-14 | 2022-10-18 | 日油株式会社 | Additive for lubricating oil, additive composition for lubricating oil, and lubricating oil composition containing additive or additive composition |
| JP2023049434A (en) * | 2021-09-29 | 2023-04-10 | 出光興産株式会社 | lubricant base oil |
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| JP2003119482A (en) * | 2001-10-10 | 2003-04-23 | New Japan Chem Co Ltd | Lubricating oil |
| CN1439697A (en) * | 2002-02-20 | 2003-09-03 | 英菲诺姆国际有限公司 | Lube composition |
| CN1671827A (en) * | 2002-06-28 | 2005-09-21 | 新日本石油株式会社 | Lubricating oil compositions |
| JP2005154726A (en) * | 2003-05-19 | 2005-06-16 | New Japan Chem Co Ltd | Lubricating oil |
| WO2005007787A1 (en) * | 2003-07-22 | 2005-01-27 | Nippon Oil Corporation | Lubricating oil composition for internal combustion engine |
| CN1570048A (en) * | 2004-04-29 | 2005-01-26 | 张为光 | Energy-saving environment protective lubricating oil |
| JP2006016453A (en) * | 2004-06-30 | 2006-01-19 | Nippon Oil Corp | Lubricating oil composition for internal combustion engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110799632A (en) * | 2017-07-11 | 2020-02-14 | 株式会社Adeka | Method for stabilizing the dispersibility of organomolybdenum compounds in base oils over a long period of time |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009203377A (en) | 2009-09-10 |
| JP5271566B2 (en) | 2013-08-21 |
| CN101519618A (en) | 2009-09-02 |
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