CN105121613A - Lubricating oil composition - Google Patents
Lubricating oil composition Download PDFInfo
- Publication number
- CN105121613A CN105121613A CN201480012065.6A CN201480012065A CN105121613A CN 105121613 A CN105121613 A CN 105121613A CN 201480012065 A CN201480012065 A CN 201480012065A CN 105121613 A CN105121613 A CN 105121613A
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- Prior art keywords
- lubricating oil
- oil composition
- less
- shear stability
- quality
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- 239000000203 mixture Substances 0.000 title claims abstract description 80
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 47
- 229920000193 polymethacrylate Polymers 0.000 claims abstract description 22
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims abstract description 18
- 238000004455 differential thermal analysis Methods 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 23
- 239000000314 lubricant Substances 0.000 claims description 18
- 208000020442 loss of weight Diseases 0.000 claims description 15
- 238000013112 stability test Methods 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 239000003921 oil Substances 0.000 claims description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 7
- 239000011574 phosphorus Substances 0.000 claims description 7
- 229910052698 phosphorus Inorganic materials 0.000 claims description 7
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 claims description 7
- 229960002317 succinimide Drugs 0.000 claims description 7
- 239000002270 dispersing agent Substances 0.000 claims description 6
- 239000002199 base oil Substances 0.000 abstract description 7
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 230000004580 weight loss Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 24
- 239000002585 base Substances 0.000 description 23
- 238000000034 method Methods 0.000 description 13
- -1 polyol ester Chemical class 0.000 description 13
- 230000003749 cleanliness Effects 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 11
- 239000003963 antioxidant agent Substances 0.000 description 10
- 230000003078 antioxidant effect Effects 0.000 description 10
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000011701 zinc Substances 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 239000005864 Sulphur Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 239000002480 mineral oil Substances 0.000 description 4
- 235000010446 mineral oil Nutrition 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010705 motor oil Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- AVVIDTZRJBSXML-UHFFFAOYSA-L calcium;2-carboxyphenolate;dihydrate Chemical compound O.O.[Ca+2].OC1=CC=CC=C1C([O-])=O.OC1=CC=CC=C1C([O-])=O AVVIDTZRJBSXML-UHFFFAOYSA-L 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 150000003949 imides Chemical class 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 150000003014 phosphoric acid esters Chemical class 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229920001748 polybutylene Polymers 0.000 description 2
- 229960001860 salicylate Drugs 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- 238000005987 sulfurization reaction Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- 101100027896 Arabidopsis thaliana OCP3 gene Proteins 0.000 description 1
- 102100022116 F-box only protein 2 Human genes 0.000 description 1
- 101000824158 Homo sapiens F-box only protein 2 Proteins 0.000 description 1
- 101000836005 Homo sapiens S-phase kinase-associated protein 1 Proteins 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 101100352578 Nicotiana plumbaginifolia PMA3 gene Proteins 0.000 description 1
- 101150037674 PMA2 gene Proteins 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 102100025487 S-phase kinase-associated protein 1 Human genes 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 241000863032 Trieres Species 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical group 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 229910052728 basic metal Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 150000001924 cycloalkanes Chemical class 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- 239000012990 dithiocarbamate Substances 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229940031826 phenolate Drugs 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical class OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- RYYWUUFWQRZTIU-UHFFFAOYSA-K thiophosphate Chemical compound [O-]P([O-])([O-])=S RYYWUUFWQRZTIU-UHFFFAOYSA-K 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M161/00—Lubricating compositions characterised by the additive being a mixture of a macromolecular compound and a non-macromolecular compound, each of these compounds being essential
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M157/00—Lubricating compositions characterised by the additive being a mixture of two or more macromolecular compounds covered by more than one of the main groups C10M143/00 - C10M155/00, each of these compounds being essential
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/102—Aliphatic fractions
- C10M2203/1025—Aliphatic fractions used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/086—Imides
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/28—Amides; Imides
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/045—Metal containing thio derivatives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/019—Shear stability
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/02—Viscosity; Viscosity index
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/04—Molecular weight; Molecular weight distribution
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—Pour-point; Viscosity index
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/68—Shear stability
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2060/00—Chemical after-treatment of the constituents of the lubricating composition
- C10N2060/14—Chemical after-treatment of the constituents of the lubricating composition by boron or a compound containing boron
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The lubricating oil composition of the present invention is characterized by blending a lubricating base oil with: a polymethacrylate having a mass average molecular weight of 30000-600000 inclusive and (B) an olefin copolymer having a 95% weight loss temperature of 500 ℃ or lower and an SSI (shear stability index) of 40 or lower in differential thermal analysis.
Description
Technical field
The present invention relates to lubricating oil composition.
Background technology
For the requirement reducing carrying capacity of environment, the whole world is in the urgent need to the CO for tackling greenhouse effects of the earth
2reduction.In order to cut down CO
2and the burnup improving automobile is important problem, for engine, the high output engine achieving miniaturization is constantly popularized.Therefore, for engine oil, the variation with the piston cleanliness of thermal load increase is troubling.
In addition, for engine oil, also require to improve further and economize burnup.Province's burnup for engine oil improves, and during the friction in hydrodynamic lubrication field reduces, the improvement of Temperature-Viscosity characteristic is effective, uses viscosity index improver to improve this Temperature-Viscosity characteristic.As this viscosity index improver, employ (patent documentation 1 ~ 4), the particularly viscosity index improver of the PMA type of many use temperatures-viscosity characteristics excellence such as polymethacrylate (PMA) or polyolefin copolymer (OCP).But concerning the viscosity index improver of PMA type, there is difficult point in the piston cleanliness under stricter hot conditions, in addition, shear stability is also troubling.Therefore, province's burnup with excellence, the lubricating oil composition simultaneously also maintaining good piston cleanliness and shear stability are subject to demand.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2008-184569 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2010-280817 publication
Patent documentation 3: Japanese Unexamined Patent Publication 2008-248139 publication
Patent documentation 4: Japanese Unexamined Patent Publication 2010-043250 publication.
Summary of the invention
The problem that invention will solve
But the lubricating oil composition recorded in patent documentation 1 ~ 4 is not have excellent province's burnup, also maintain good piston cleanliness and the lubricating oil composition of shear stability simultaneously.
Therefore, the object of the present invention is to provide and there is excellent province's burnup, also can maintain good piston cleanliness and the lubricating oil composition of shear stability simultaneously.
For the method for dealing with problems
In order to solve foregoing problems, the invention provides lubricating oil composition as described below.
(1) lubricating oil composition, it is characterized in that, be combined with in lubricant base: (A) weight-average molecular weight is more than 30000 and 95% loss of weight temperature in the polymethacrylate of less than 600000 and (B) differential thermal analysis is less than 500 DEG C and SSI(shear stability index) be less than 40 olefin copolymer.
(2) above-mentioned lubricating oil composition, is characterized in that, the weight-average molecular weight of described (A) composition is the polymethacrylate of more than 200000 and less than 600000, and the SSI of described (B) composition is less than 30.
(3) above-mentioned lubricating oil composition, is characterized in that, the kinematic viscosity at 100 DEG C is 9.3mm
2/ more than s and less than 12.5mm
2during/s, the kinematic viscosity at 100 DEG C after shear stability test is 9.3mm
2/ more than s.
(4) above-mentioned lubricating oil composition, is characterized in that, the kinematic viscosity at 100 DEG C after shear stability test is 10mm
2/ below s.
(5) above-mentioned lubricating oil composition, is characterized in that, the kinematic viscosity at 100 DEG C is 5.6mm
2/ more than s and less than 9.3mm
2during/s, the kinematic viscosity at 100 DEG C after shear stability test is 5.6mm
2/ more than s.
(6) above-mentioned lubricating oil composition, is characterized in that, the viscosity index of described lubricant base is more than 120.
(7) above-mentioned lubricating oil composition, is characterized in that, in total composition benchmark, phosphorus content is below 0.12 quality %.
(8) above-mentioned lubricating oil composition, is characterized in that, is combined with metal system sanitising agent further, and convert in the metal of total composition benchmark, the use level of described metal system sanitising agent is more than 0.05 quality % and below 0.3 quality %.
(9) above-mentioned lubricating oil composition, is characterized in that, is combined with at least a kind of ashless dispersant be selected from polybutenyl succinic imide and polybutenyl succinic imide boride further.
(10) above-mentioned lubricating oil composition, is characterized in that, it is oil engine use.
The feature of lubricating oil composition of the present invention is, it contains: lubricant base, (A) weight-average molecular weight are more than 30000 and 95% loss of weight temperature in the polymethacrylate of less than 600000 and (B) differential thermal analysis is less than 500 DEG C and SSI(shear stability index) be less than 40 olefin copolymer.
The feature of the manufacture method of lubricating oil composition of the present invention is, in lubricant base, coordinate (A) weight-average molecular weight to be more than 30000 and 95% loss of weight temperature in the polymethacrylate of less than 600000 and (B) differential thermal analysis is less than 500 DEG C and SSI(shear stability index) be less than 40 olefin copolymer, manufacture lubricating oil composition thus.
According to the present invention, can provide and there is excellent province's burnup, also maintain good piston cleanliness and the lubricating oil composition of shear stability simultaneously.
Embodiment
Lubricating oil composition of the present invention (following, also referred to as " this composition ") in lubricant base, is combined with (A) weight-average molecular weight be more than 30000 and 95% loss of weight temperature in the polymethacrylate of less than 600000 and (B) differential thermal analysis is less than 500 DEG C and SSI(shear stability index) be the lubricating oil composition of the olefin copolymer of less than 40.Below, be described in detail.
［ lubricant base ］
As the lubricant base used in this composition, can be mineral system lubricant base, also can be synthesis be lubricant base.The kind of these lubricant bases is not particularly limited, can from being used as to be suitable for selecting any kind to use among the mineral oil of base oil of lubricating oil for IC engines and synthetic oil in the past.In addition, the viscosity index of this lubricant base, from the view point of Temperature-Viscosity characteristic and the shear stability of lubricating oil composition, is preferably more than 120.
As mineral system lubricant base, can enumerate such as: paraffin base system mineral oil, middle base system mineral oil and cycloalkanes base system mineral oil.In addition, be lubricant base as synthesis, can enumerate such as: polybutene, polyolefine, polyol ester, diester, phosphoric acid ester, polyphenylene oxide, polyglycol, alkylbenzene and alkylnaphthalene.As polyolefine, can enumerate such as: alpha-olefin homo and alpha-olefin copolymer.These base oils can be used alone a kind, also can combine two or more and use.
［ (A) composition ］
(A) composition in this composition is that weight-average molecular weight is more than 30000 and the polymethacrylate of less than 600000 (PMA).During weight-average molecular weight deficiency aforementioned minimum, then economize burnup and be deteriorated, on the other hand, if exceed the aforementioned upper limit, then the shear stability of lubricating oil composition reduces.In addition, the weight-average molecular weight of (A) composition should be more preferably more than 200000 and less than 600000, be more preferably more than 3500000 further and less than 450000, be particularly preferably more than 3800000 and less than 420000.
Aforementioned polymethacrylate can be non-decentralized polymethacrylate, also can be decentralized polymethacrylate.
In total composition benchmark, the use level of aforementioned (A) composition is preferably more than 1 quality % and below 20 quality %, is more preferably more than 2 quality % and below 15 quality %.During use level deficiency aforementioned minimum, then the tendency of the effect deficiency having viscosity index to improve, on the other hand, if exceed the aforementioned upper limit, then has the tendency that the shear stability of lubricating oil composition, piston cleanliness reduce.
［ (B) composition ］
(B) composition in this composition be 95% loss of weight temperature in differential thermal analysis be less than 500 DEG C and SSI be less than 40 olefin copolymer (OCP).If 95% loss of weight temperature is more than 500 DEG C, then the piston cleanliness of lubricating oil composition reduces.If SSI is more than 40, then the shear stability of lubricating oil composition reduces.In addition, the SSI of (B) composition should be more preferably less than 30, be more preferably more than 2 further and less than 30, be particularly preferably more than 2 and less than 20, most preferably be more than 6 and less than 19.And then the 95% loss of weight temperature of being somebody's turn to do (B) composition is more preferably less than 480 DEG C, is particularly preferably more than 461 DEG C and less than 476 DEG C.
Should illustrate, 95% loss of weight temperature can use known differential thermal analysis device to measure.In addition, as test conditions, can enumerate such as: in nitrogen, flow: 200mL/ minute, heat-up rate: 10 DEG C/min, use the condition of platinum disc, sample size: 6mg.SSI can calculate as follows: measure the base oil kinematic viscosity at kinematic viscosity at (ASTM D6278) after fresh oil and shear stability test 100 DEG C and 100 DEG C, and use this measured value, calculate with the formula of (after fresh oil kinematic viscosity-shearing test kinematic viscosity)/(fresh oil kinematic viscosity-base oil kinematic viscosity) × 100.
As foregoing alkenes multipolymer, can use such as: ethylene-propylene copolymer, ethylene-butene copolymer, styrene-isoprene copolymer or styrene-butadiene copolymer etc.
In total composition benchmark, the use level of aforementioned (B) composition is preferably more than 1 quality % and below 15 quality %, is more preferably more than 2 quality % and below 10 quality %.
［ other additive ］
Do not damaging the scope of effect of the present invention, various additives shown below can also coordinated to this composition.Particularly, can be suitable for coordinating detergent dispersant, antioxidant, wear-resistant dose of extreme pressure agent, pour point depressant, friction-reducing agents, metal passivator, rust-preventive agent, tensio-active agent non-emulsifying agent, defoamer, anticorrosive agent, friction modifier, oiliness improver and sour trapping agent etc. to use.
As detergent dispersant, ashless dispersant, metal system sanitising agent can be used.
As ashless dispersant, can enumerate such as: succinimide compound, boron system imide compound, Mannich system dispersion agent and acid amides based compound.Among them, preferred polybutenyl succinic imide, polybutenyl succinic imide boride.They can be used alone a kind, also can combine two or more and use.
The use level of aforementioned ashless system dispersion agent is not particularly limited, and in total composition benchmark, is preferably more than 0.1 quality % and below 10 quality %.
As metal system sanitising agent, can enumerate such as: alkali metal sulfonate, alkali metal phenolate, alkali metal salicylate salt, basic metal naphthenate, alkaline earth metal sulfonate, alkaline earth phenate, alkaline earth metal salicylate, alkaline-earth metal naphthenate.Among them, be preferably alkaline earth metal salicylate.In addition, among alkaline-earth metal, preferred calcium, magnesium.These metal system sanitising agents can be used alone a kind, also can combine two or more and use.
Convert in the metal of total composition benchmark, the use level of aforementioned metal system sanitising agent is preferably more than 0.05 quality % and below 0.3 quality %.
As antioxidant, can enumerate such as: the antioxidant of the antioxidant of amine system, the antioxidant of phenol system and sulphur system.They can be used alone a kind, also can combine two or more and use.
The use level of antioxidant is not particularly limited, and in total composition benchmark, is preferably more than 0.05 quality % and below 7 quality %.
As wear-resistant dose of extreme pressure agent, can enumerate such as: the extreme pressure agent of phosphorus system, the extreme pressure agent of sulphur system.As the extreme pressure agent of phosphorus system, can enumerate such as: phosphorous acid esters, phosphoric acid ester, group thiophosphate and their amine salt or metal-salt.As the extreme pressure agent of sulphur system, can enumerate such as: olefine sulfide, sulfuration grease, sulfuration ester, thiocarbonic ester class, dithiocarbamate and multiple sulfides.They can be used alone a kind, also can combine two or more and use.
The use level of wear-resistant dose of extreme pressure agent is not particularly limited, and in total composition benchmark, is preferably more than 0.1 quality % and below 10 quality %.
Should illustrate, this composition usually containing the material joined together by it, but according to situation, can the reacting at least partially etc. and to become other compound of material joined together.
The manufacture method of lubricating oil composition of the present invention is the method by coordinating (A) composition and (B) to become to assign to manufacture lubricating oil composition in lubricant base.In this manufacture method, in lubricant base, above-mentioned various additive can be coordinated further as required.
［ lubricating oil composition ］
Be not particularly limited by above this composition prepared, preferably meet following condition.
Kinematic viscosity at 100 DEG C is preferably 2mm
2/ more than s and 20mm
2/ below s, is more preferably 5.6mm
2/ more than s and less than 12.5mm
2/ s.Should illustrate, kinematic viscosity measures by the method for JIS K 2283.
In addition, the kinematic viscosity at 100 DEG C is 9.3mm
2/ more than s and less than 12.5mm
2during/s, the kinematic viscosity at 100 DEG C after shear stability test is preferably 9.3mm
2/ more than s, is more preferably 9.3mm
2/ more than s and 10mm
2/ below s.
Kinematic viscosity at 100 DEG C is 5.6mm
2/ more than s and less than 9.3mm
2during/s, the kinematic viscosity at 100 DEG C after shear stability test is preferably 5.6mm
2/ more than s.
During kinematic viscosity at 100 DEG C after shear stability test is not enough aforementioned minimum, then there is the tendency of shear stability deficiency, such as, in the situation of particularly viscosity grade 5W-30, become and cannot realize stabilizing quality (stayingrade).On the other hand, if this kinematic viscosity exceedes the aforementioned upper limit, then there is the tendency that province's burnup is deteriorated.Should illustrate, the test method that shear stability test can be recorded according to ASTM D6278 is tested.
Viscosity index is preferably more than 150, is more preferably more than 170.If viscosity index is not enough aforementioned minimum, then the temperature dependency of viscosity becomes large, therefore not preferred.Should illustrate, viscosity index measures by the method for JIS K 2283.
Phosphorus content in this composition, from the view point of the low phosphatization of lubricating oil composition, in total composition benchmark, is preferably below 0.12 quality %.
Embodiment
Then, further describe the present invention by embodiment, but the present invention is not by any restriction of following examples.
［ embodiment 1 ~ 3, comparative example 1 ~ 6 ］
In each embodiment and comparative example, use base oil shown below and additive respectively, preparation has the lubricating oil composition (hereinafter also referred to as " for formation testing ") of composition shown in table 1.Should illustrate, the viscosity grade for formation testing is adjusted to 5W-30 to implement experiment.
(1) lubricant base: hydrofinishing base oil, 40 DEG C of kinematic viscosity 19.6mm
2/ s, 100 DEG C of kinematic viscosity 4.2mm
2/ s, viscosity index 122, %CA0.0, sulphur content are less than 10 quality ppm
(2) viscosity index improver PMA1: polymethacrylate, weight-average molecular weight 380000
(3) viscosity index improver PMA2: polymethacrylate, weight-average molecular weight 420000
(4) viscosity index improver PMA3: polymethacrylate, weight-average molecular weight 25000
(5) viscosity index improver OCP1: olefin copolymer, shear stability index 6, differential heat 95% loss of weight temperature 464 DEG C
(6) viscosity index improver OCP2: olefin copolymer, shear stability index 15, differential heat 95% loss of weight temperature 476 DEG C
(7) viscosity index improver OCP3: olefin copolymer, shear stability index 19, differential heat 95% loss of weight temperature 461 DEG C
(8) viscosity index improver OCP4: olefin copolymer, shear stability index 50, differential heat 95% loss of weight temperature 480 DEG C
(9) viscosity index improver OCP5: olefin copolymer, shear stability index 20, differential heat 95% loss of weight temperature 520 DEG C
(10) zinc dialkyl dithiophosphate A: Zn content 8.9 quality %, phosphorus content 7.4 quality %, primary alkyl zinc dialkyl dithiophosphate
(11) zinc dialkyl dithiophosphate B: Zn content 9.0 quality %, phosphorus content 8.2 quality %, secondary alkane fundamental mode zinc dialkyl dithiophosphate
(12) antioxidant A: amine system antioxidant
(13) antioxidant B: phenol system antioxidant
(14) metal system sanitising agent A: overbased calcium salicylate, base number (perchloric acid method) 350mgKOH/g, calcium contents 12.1 quality %
(15) metal system sanitising agent B: overbased calcium salicylate, base number (perchloric acid method) 225mgKOH/g, calcium contents 7.8 quality %
(16) polybutenyl succinic pyromellitic imide: polybutylene-based number-average molecular weight 2000, base number (perchloric acid method) 11.9mgKOH/g, nitrogen content 0.99 quality %
(17) the single imide boride of polybutenyl succinic acid: polybutylene-based number-average molecular weight 1000, base number (perchloric acid method) 25mgKOH/g, nitrogen content 1.23 quality %, Boron contents 1.3 quality %
(18) other additive: pour point depressant, rust-preventive agent etc.
Then, for each for formation testing, measure or calculate each characteristic properties.Each measuring method or calculation method as described below.Result is shown in table 1.
(1) kinematic viscosity (40 DEG C, 100 DEG C) and viscosity index
" petroleum product movement viscosity test method " according to defined in JIS K 2283 measures.
(2) high-temperature high shear viscosity (150 DEG C of HTHS viscosity)
Utilize the method for ASTM D4683, use TBS high temperature viscosimeter (Tapered Bearing Simulator) to measure.
(3) kinematic viscosity (100 DEG C) after shear stability test
Carry out shear stability test (30 circulation) according to the test method recorded in ASTM D6278, the kinematic viscosity at thereafter 100 DEG C measures according to " the petroleum product movement viscosity test method " of defined in JIS K 2283.
(4) motion torque
Fill in testing apparatus as follows and carry out motion torque test for formation testing, measure motion torque.Test conditions is as follows.Should illustrate, motion torque is also that lower then province burnup is better.
Testing apparatus: engine movements driving torque measuring machine
For spreadsheet engine: inline four-cylinder engine (free air delivery 2 liters, roller driver's valve)
Test conditions: oil temperature 60 DEG C and 100 DEG C, rotating speed 1500rpm
Assessment item: the moment of torsion (unit N m) during engine driven.
(5) panel coker (panelcoking) test
Use testing apparatus as described below, measure deposition adhesion amount.Test conditions is as follows.Should illustrate, the deposition adhesion amount in panel coking test is fewer, then piston cleanliness is better.
Testing apparatus: panel coker (パ ネ コ Application) trier
Test conditions: lacquering plate temperature 300 DEG C, oil temperature 100 DEG C, 3 hours time (the 15 seconds/stopping running of 45 seconds of splashing)
Assessment item: the deposition adhesion amount of lacquering plate after test.
Result as shown in Table 1 also can be clear and definite, and for lubricating oil composition of the present invention (embodiment 1 ~ 3), after confirming shear stability test, kinematic viscosity maintains stabilizing quality (9.3mm
2/ more than s) deposition adhesion amount few (piston cleanliness is good) while (shear stability is good), in panel coking test, motion torque also low (economizing burnup good).On the other hand, for the confession formation testing of comparative example 1 and 2, known owing to only coordinating polymethacrylate, thus motion torque is low, but shear stability, piston cleanliness are deteriorated.In addition, for only coordinate olefin copolymer comparative example 3 for formation testing, known motion torque uprises.For the confession formation testing of comparative example 4, the known olefin copolymer owing to being combined with shear stability difference (SSI is high), thus after shear stability test, kinematic viscosity does not meet stabilizing quality (9.3mm
2/ more than s).For comparative example 5 for formation testing, known owing to coordinating 95% loss of weight temperature in differential thermal analysis to be the olefin copolymer of more than 500 DEG C, thus piston cleanliness variation.For the confession formation testing of comparative example 6, the known polymethacrylate owing to coordinating lower than the molecular weight ranges lower limit of the application, thus Temperature-Viscosity properties deteriorate, motion torque uprises (economizing burnup to be deteriorated).
Claims (10)
1. lubricating oil composition, it is characterized in that, be combined with in lubricant base: (A) weight-average molecular weight is more than 30000 and 95% loss of weight temperature in the polymethacrylate of less than 600000 and (B) differential thermal analysis is less than 500 DEG C and SSI(shear stability index) be less than 40 olefin copolymer.
2. lubricating oil composition according to claim 1, is characterized in that,
The weight-average molecular weight of described (A) composition is the polymethacrylate of more than 200000 and less than 600000,
The SSI of described (B) composition is less than 30.
3. the lubricating oil composition described in claim 1 or 2, is characterized in that,
Kinematic viscosity at 100 DEG C is 9.3mm
2/ more than s and less than 12.5mm
2during/s, the kinematic viscosity at 100 DEG C after shear stability test is 9.3mm
2/ more than s.
4. lubricating oil composition according to claim 3, is characterized in that,
Kinematic viscosity at 100 DEG C after shear stability test is 10mm
2/ below s.
5. the lubricating oil composition described in claim 1 or 2, is characterized in that,
Kinematic viscosity at 100 DEG C is 5.6mm
2/ more than s and less than 9.3mm
2during/s, the kinematic viscosity at 100 DEG C after shear stability test is 5.6mm
2/ more than s.
6. the lubricating oil composition according to any one of Claims 1 to 5, is characterized in that,
The viscosity index of described lubricant base is more than 120.
7. the lubricating oil composition according to any one of claim 1 ~ 6, is characterized in that,
In total composition benchmark, phosphorus content is below 0.12 quality %.
8. the lubricating oil composition according to any one of claim 1 ~ 7, is characterized in that,
Be combined with metal system sanitising agent further,
Convert in the metal of total composition benchmark, the use level of described metal system sanitising agent is more than 0.05 quality % and below 0.3 quality %.
9. the lubricating oil composition according to any one of claim 1 ~ 8, is characterized in that,
Be combined with at least a kind of ashless dispersant be selected from polybutenyl succinic imide and polybutenyl succinic imide boride further.
10. the lubricating oil composition according to any one of claim 1 ~ 9, is characterized in that, it is oil engine use.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
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| JP2013-041714 | 2013-03-04 | ||
| JP2013041714 | 2013-03-04 | ||
| PCT/JP2014/054815 WO2014136643A1 (en) | 2013-03-04 | 2014-02-27 | Lubricant oil composition |
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| CN105121613A true CN105121613A (en) | 2015-12-02 |
Family
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|---|---|
| US (1) | US20160002563A1 (en) |
| EP (1) | EP2966154A4 (en) |
| JP (1) | JP6293115B2 (en) |
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| WO (1) | WO2014136643A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108368445A (en) * | 2015-12-25 | 2018-08-03 | 出光兴产株式会社 | Mineral base oil, lubricating oil composition, internal combustion engine, and method for lubricating internal combustion engine |
| CN115667472A (en) * | 2020-08-21 | 2023-01-31 | 出光兴产株式会社 | Lubricating oil composition, buffer and method for using lubricating oil composition |
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| JP6420964B2 (en) * | 2014-03-31 | 2018-11-07 | 出光興産株式会社 | Lubricating oil composition for internal combustion engines |
| JP6927488B2 (en) * | 2017-03-30 | 2021-09-01 | 出光興産株式会社 | A lubricating oil composition for a two-wheeled vehicle, a method for improving the fuel efficiency of a two-wheeled vehicle using the lubricating oil composition, and a method for producing the lubricating oil composition. |
| CN111819269A (en) | 2018-03-02 | 2020-10-23 | 雪佛龙奥伦耐技术有限责任公司 | Lubricating oil compositions providing wear protection at low viscosity |
| EP3759201A1 (en) | 2018-03-02 | 2021-01-06 | Chevron Oronite Technology B.V. | Lubricating oil composition providing wear protection at low viscosity |
| JP6744047B2 (en) * | 2018-03-30 | 2020-08-19 | 出光興産株式会社 | Lubricating oil composition and method of using lubricating oil composition |
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Also Published As
| Publication number | Publication date |
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| JPWO2014136643A1 (en) | 2017-02-09 |
| EP2966154A1 (en) | 2016-01-13 |
| US20160002563A1 (en) | 2016-01-07 |
| EP2966154A4 (en) | 2016-12-07 |
| WO2014136643A1 (en) | 2014-09-12 |
| JP6293115B2 (en) | 2018-03-14 |
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