JP6300686B2 - 潤滑油組成物 - Google Patents
潤滑油組成物 Download PDFInfo
- Publication number
- JP6300686B2 JP6300686B2 JP2014177254A JP2014177254A JP6300686B2 JP 6300686 B2 JP6300686 B2 JP 6300686B2 JP 2014177254 A JP2014177254 A JP 2014177254A JP 2014177254 A JP2014177254 A JP 2014177254A JP 6300686 B2 JP6300686 B2 JP 6300686B2
- Authority
- JP
- Japan
- Prior art keywords
- lubricating oil
- oil composition
- mass
- calcium
- magnesium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000203 mixture Substances 0.000 title claims description 237
- 239000010687 lubricating oil Substances 0.000 title claims description 215
- 239000011777 magnesium Substances 0.000 claims description 169
- 239000011575 calcium Substances 0.000 claims description 165
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 104
- 229910052791 calcium Inorganic materials 0.000 claims description 104
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 99
- 229910052749 magnesium Inorganic materials 0.000 claims description 99
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 70
- 229910052751 metal Inorganic materials 0.000 claims description 67
- 239000002184 metal Substances 0.000 claims description 67
- 239000003599 detergent Substances 0.000 claims description 58
- 239000011733 molybdenum Substances 0.000 claims description 57
- 229910052750 molybdenum Inorganic materials 0.000 claims description 57
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 56
- 239000002270 dispersing agent Substances 0.000 claims description 50
- 150000001875 compounds Chemical class 0.000 claims description 49
- 229910052698 phosphorus Inorganic materials 0.000 claims description 49
- 239000011574 phosphorus Substances 0.000 claims description 49
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 45
- 239000002199 base oil Substances 0.000 claims description 36
- 229910052757 nitrogen Inorganic materials 0.000 claims description 35
- 239000003795 chemical substances by application Substances 0.000 claims description 19
- 230000001050 lubricating effect Effects 0.000 claims description 18
- 239000003607 modifier Substances 0.000 claims description 13
- 125000004432 carbon atom Chemical group C* 0.000 description 51
- -1 ethylhexyl Chemical group 0.000 description 49
- 230000003749 cleanliness Effects 0.000 description 41
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 36
- 230000002265 prevention Effects 0.000 description 34
- 125000000217 alkyl group Chemical group 0.000 description 32
- KZNICNPSHKQLFF-UHFFFAOYSA-N dihydromaleimide Natural products O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 25
- 239000000654 additive Substances 0.000 description 24
- 239000002253 acid Substances 0.000 description 23
- 150000002430 hydrocarbons Chemical group 0.000 description 19
- 125000003342 alkenyl group Chemical group 0.000 description 17
- 239000002585 base Substances 0.000 description 16
- 239000005078 molybdenum compound Substances 0.000 description 15
- 150000002752 molybdenum compounds Chemical class 0.000 description 15
- 229960002317 succinimide Drugs 0.000 description 15
- 230000000694 effects Effects 0.000 description 14
- 238000002156 mixing Methods 0.000 description 12
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 11
- 238000002485 combustion reaction Methods 0.000 description 11
- 239000003921 oil Substances 0.000 description 11
- 229910052708 sodium Inorganic materials 0.000 description 11
- 239000011734 sodium Substances 0.000 description 11
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 10
- 230000000996 additive effect Effects 0.000 description 10
- 239000003963 antioxidant agent Substances 0.000 description 10
- 229910052796 boron Inorganic materials 0.000 description 10
- 235000019198 oils Nutrition 0.000 description 10
- 229910052717 sulfur Inorganic materials 0.000 description 10
- 239000011593 sulfur Substances 0.000 description 10
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 9
- 230000002829 reductive effect Effects 0.000 description 9
- 150000003839 salts Chemical class 0.000 description 9
- 150000002148 esters Chemical class 0.000 description 8
- 150000002751 molybdenum Chemical class 0.000 description 8
- KHYKFSXXGRUKRE-UHFFFAOYSA-J molybdenum(4+) tetracarbamodithioate Chemical compound C(N)([S-])=S.[Mo+4].C(N)([S-])=S.C(N)([S-])=S.C(N)([S-])=S KHYKFSXXGRUKRE-UHFFFAOYSA-J 0.000 description 8
- 239000010705 motor oil Substances 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- 239000003112 inhibitor Substances 0.000 description 7
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- 150000007519 polyprotic acids Polymers 0.000 description 7
- 125000003118 aryl group Chemical group 0.000 description 6
- 239000000446 fuel Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 239000002480 mineral oil Substances 0.000 description 6
- 235000010446 mineral oil Nutrition 0.000 description 6
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 6
- VLAPMBHFAWRUQP-UHFFFAOYSA-L molybdic acid Chemical compound O[Mo](O)(=O)=O VLAPMBHFAWRUQP-UHFFFAOYSA-L 0.000 description 6
- 238000006386 neutralization reaction Methods 0.000 description 6
- 229920000768 polyamine Polymers 0.000 description 6
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000011572 manganese Substances 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 150000007524 organic acids Chemical class 0.000 description 5
- 150000002894 organic compounds Chemical class 0.000 description 5
- MBBWTVUFIXOUBE-UHFFFAOYSA-L zinc;dicarbamodithioate Chemical compound [Zn+2].NC([S-])=S.NC([S-])=S MBBWTVUFIXOUBE-UHFFFAOYSA-L 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- XYRMLECORMNZEY-UHFFFAOYSA-B [Mo+4].[Mo+4].[Mo+4].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S Chemical compound [Mo+4].[Mo+4].[Mo+4].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S XYRMLECORMNZEY-UHFFFAOYSA-B 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 4
- 230000002411 adverse Effects 0.000 description 4
- 229910052783 alkali metal Inorganic materials 0.000 description 4
- 125000003277 amino group Chemical group 0.000 description 4
- 230000003078 antioxidant effect Effects 0.000 description 4
- 125000003710 aryl alkyl group Chemical group 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 125000000753 cycloalkyl group Chemical group 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
- 239000000194 fatty acid Substances 0.000 description 4
- 229930195729 fatty acid Natural products 0.000 description 4
- 150000004665 fatty acids Chemical class 0.000 description 4
- 125000001183 hydrocarbyl group Chemical group 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 229920000193 polymethacrylate Polymers 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 125000002877 alkyl aryl group Chemical group 0.000 description 3
- 125000002947 alkylene group Chemical group 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 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 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 3
- 125000001841 imino group Chemical group [H]N=* 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000006078 metal deactivator Substances 0.000 description 3
- BRESEFMHKFGSDY-UHFFFAOYSA-N molybdenum;pyrrolidine-2,5-dione Chemical class [Mo].O=C1CCC(=O)N1 BRESEFMHKFGSDY-UHFFFAOYSA-N 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 230000003472 neutralizing effect Effects 0.000 description 3
- 229910017464 nitrogen compound Inorganic materials 0.000 description 3
- 150000002830 nitrogen compounds Chemical class 0.000 description 3
- 239000005077 polysulfide Substances 0.000 description 3
- 229920001021 polysulfide Polymers 0.000 description 3
- 150000008117 polysulfides Polymers 0.000 description 3
- 150000005846 sugar alcohols Polymers 0.000 description 3
- PTISTKLWEJDJID-UHFFFAOYSA-N sulfanylidenemolybdenum Chemical class [Mo]=S PTISTKLWEJDJID-UHFFFAOYSA-N 0.000 description 3
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- MQHWFIOJQSCFNM-UHFFFAOYSA-L Magnesium salicylate Chemical compound [Mg+2].OC1=CC=CC=C1C([O-])=O.OC1=CC=CC=C1C([O-])=O MQHWFIOJQSCFNM-UHFFFAOYSA-L 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 description 2
- 239000011609 ammonium molybdate Substances 0.000 description 2
- 229940010552 ammonium molybdate Drugs 0.000 description 2
- 235000018660 ammonium molybdate Nutrition 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- ZMRQTIAUOLVKOX-UHFFFAOYSA-L calcium;diphenoxide Chemical compound [Ca+2].[O-]C1=CC=CC=C1.[O-]C1=CC=CC=C1 ZMRQTIAUOLVKOX-UHFFFAOYSA-L 0.000 description 2
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 150000004985 diamines Chemical class 0.000 description 2
- 150000005690 diesters Chemical class 0.000 description 2
- QXYJCZRRLLQGCR-UHFFFAOYSA-N dioxomolybdenum Chemical compound O=[Mo]=O QXYJCZRRLLQGCR-UHFFFAOYSA-N 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000012990 dithiocarbamate Substances 0.000 description 2
- 150000004678 hydrides Chemical class 0.000 description 2
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical compound C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229940072082 magnesium salicylate Drugs 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OSWPMRLSEDHDFF-UHFFFAOYSA-N methyl salicylate Chemical compound COC(=O)C1=CC=CC=C1O OSWPMRLSEDHDFF-UHFFFAOYSA-N 0.000 description 2
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 2
- PDKHNCYLMVRIFV-UHFFFAOYSA-H molybdenum;hexachloride Chemical compound [Cl-].[Cl-].[Cl-].[Cl-].[Cl-].[Cl-].[Mo] PDKHNCYLMVRIFV-UHFFFAOYSA-H 0.000 description 2
- 125000002950 monocyclic group Chemical group 0.000 description 2
- LSHROXHEILXKHM-UHFFFAOYSA-N n'-[2-[2-[2-(2-aminoethylamino)ethylamino]ethylamino]ethyl]ethane-1,2-diamine Chemical compound NCCNCCNCCNCCNCCN LSHROXHEILXKHM-UHFFFAOYSA-N 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 235000011007 phosphoric acid Nutrition 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 229920013639 polyalphaolefin Polymers 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000001384 succinic acid Substances 0.000 description 2
- 125000000446 sulfanediyl group Chemical group *S* 0.000 description 2
- 125000004434 sulfur atom Chemical group 0.000 description 2
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 2
- VLLMWSRANPNYQX-UHFFFAOYSA-N thiadiazole Chemical compound C1=CSN=N1.C1=CSN=N1 VLLMWSRANPNYQX-UHFFFAOYSA-N 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- ARCGXLSVLAOJQL-UHFFFAOYSA-N trimellitic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 ARCGXLSVLAOJQL-UHFFFAOYSA-N 0.000 description 2
- WMYJOZQKDZZHAC-UHFFFAOYSA-H trizinc;dioxido-sulfanylidene-sulfido-$l^{5}-phosphane Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S WMYJOZQKDZZHAC-UHFFFAOYSA-H 0.000 description 2
- WFXHUBZUIFLWCV-UHFFFAOYSA-N (2,2-dimethyl-3-octanoyloxypropyl) octanoate Chemical compound CCCCCCCC(=O)OCC(C)(C)COC(=O)CCCCCCC WFXHUBZUIFLWCV-UHFFFAOYSA-N 0.000 description 1
- BJDAUCLANVMIOB-UHFFFAOYSA-N (3-decanoyloxy-2,2-dimethylpropyl) decanoate Chemical compound CCCCCCCCCC(=O)OCC(C)(C)COC(=O)CCCCCCCCC BJDAUCLANVMIOB-UHFFFAOYSA-N 0.000 description 1
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- LPMBTLLQQJBUOO-KTKRTIGZSA-N (z)-n,n-bis(2-hydroxyethyl)octadec-9-enamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)N(CCO)CCO LPMBTLLQQJBUOO-KTKRTIGZSA-N 0.000 description 1
- JTQQDDNCCLCMER-CLFAGFIQSA-N (z)-n-[(z)-octadec-9-enyl]octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCNCCCCCCCC\C=C/CCCCCCCC JTQQDDNCCLCMER-CLFAGFIQSA-N 0.000 description 1
- MBIZXFATKUQOOA-UHFFFAOYSA-N 1,3,4-thiadiazole Chemical compound C1=NN=CS1 MBIZXFATKUQOOA-UHFFFAOYSA-N 0.000 description 1
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical class C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 1
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 description 1
- GSOYMOAPJZYXTB-UHFFFAOYSA-N 2,6-ditert-butyl-4-(3,5-ditert-butyl-4-hydroxyphenyl)phenol Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(C=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 GSOYMOAPJZYXTB-UHFFFAOYSA-N 0.000 description 1
- VRMHHVOBVLFRFB-UHFFFAOYSA-N 2-(2-cyanoethylsulfanylmethyl)benzoic acid Chemical compound OC(=O)C1=CC=CC=C1CSCCC#N VRMHHVOBVLFRFB-UHFFFAOYSA-N 0.000 description 1
- HCYSJBICYOIBLS-UHFFFAOYSA-N 2-(dodecylamino)ethanol Chemical compound CCCCCCCCCCCCNCCO HCYSJBICYOIBLS-UHFFFAOYSA-N 0.000 description 1
- NDLNTMNRNCENRZ-UHFFFAOYSA-N 2-[2-hydroxyethyl(octadecyl)amino]ethanol Chemical compound CCCCCCCCCCCCCCCCCCN(CCO)CCO NDLNTMNRNCENRZ-UHFFFAOYSA-N 0.000 description 1
- LWLRMRFJCCMNML-UHFFFAOYSA-N 2-ethylhexyl dodecanoate Chemical compound CCCCCCCCCCCC(=O)OCC(CC)CCCC LWLRMRFJCCMNML-UHFFFAOYSA-N 0.000 description 1
- SFAAOBGYWOUHLU-UHFFFAOYSA-N 2-ethylhexyl hexadecanoate Chemical compound CCCCCCCCCCCCCCCC(=O)OCC(CC)CCCC SFAAOBGYWOUHLU-UHFFFAOYSA-N 0.000 description 1
- ALKCLFLTXBBMMP-UHFFFAOYSA-N 3,7-dimethylocta-1,6-dien-3-yl hexanoate Chemical compound CCCCCC(=O)OC(C)(C=C)CCC=C(C)C ALKCLFLTXBBMMP-UHFFFAOYSA-N 0.000 description 1
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 1
- MDWVSAYEQPLWMX-UHFFFAOYSA-N 4,4'-Methylenebis(2,6-di-tert-butylphenol) Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 MDWVSAYEQPLWMX-UHFFFAOYSA-N 0.000 description 1
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 description 1
- 239000004135 Bone phosphate Substances 0.000 description 1
- SHWDCLQRSWTSRE-UHFFFAOYSA-N CCC(CO)(CO)CO.CCCCCCCC(O)=O.CCCCCCCC(O)=O.CCCCCCCC(O)=O Chemical compound CCC(CO)(CO)CO.CCCCCCCC(O)=O.CCCCCCCC(O)=O.CCCCCCCC(O)=O SHWDCLQRSWTSRE-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
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- 125000002948 undecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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Images
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
- C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
- C10M141/12—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic compound containing atoms of elements not provided for in groups C10M141/02 - C10M141/10
-
- 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
- C10M2205/0285—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 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
- 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
- C10M2207/028—Overbased salts thereof
-
- 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
- C10M2207/26—Overbased carboxylic acid salts
- C10M2207/262—Overbased carboxylic acid salts derived from hydroxy substituted aromatic acids, e.g. salicylates
-
- 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
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Description
下記式(1)
X=([Ca]+0.5[Mg])×8−[Mo]×8−[P]×30 (1)
(上記式(1)において[Ca]、[Mg]、[Mo]、及び[P]は、それぞれ潤滑油組成物中のカルシウム、マグネシウム、モリブデン、及びリンの濃度(質量%)である)
で求められるXが、X≦−1.2を満たし、
下記式(2)
Y=[Ca]+1.65[Mg]+[N] (2)
(上記式(2)において[Ca]、[Mg]、及び[N]は、それぞれ潤滑油組成物中のカルシウム、マグネシウム、及び無灰分散剤由来の窒素の濃度(質量%)である)
で求められるYが、Y≧0.18を満たし、及び
下記式(3)
Z=[N]/([Ca]+[Mg]) (3)
(上記式(3)において[Ca]、[Mg]、及び[N]は、それぞれ潤滑油組成物中のカルシウム、マグネシウム、及び無灰分散剤由来の窒素の濃度(質量%)である)
で求められるZが、Z=0.3〜1.5を満たす、過給ガソリンエンジン用潤滑油組成物。
下記式(4)
Q=[Ca]+0.05[Mg] (4)
(上記式(4)において[Ca]、[Mg]は、それぞれ潤滑油組成物中のカルシウム、マグネシウムの濃度(質量%)である)
で求められるQが、Q≦0.15を満たし、
下記式(5)
W=[Ca]+1.65[Mg] (5)
(上記式(5)において[Ca]、[Mg]は、それぞれ潤滑油組成物中のカルシウム、マグネシウムの濃度(質量%)である)
で求められるWが、0.14≦W≦1.0を満たす潤滑油組成物に関する。
下記式(1)
X=([Ca]+0.5[Mg])×8−[Mo]×8−[P]×30 (1)
(上記式(1)において[Ca]、[Mg]、[Mo]、及び[P]は、それぞれ潤滑油組成物中のカルシウム、マグネシウム、モリブデン、及びリンの濃度(質量%)である)
で求められるXが、X≦−0.85を満たし、
下記式(2)
Y=[Ca]+1.65[Mg]+[N] (2)
(上記式(2)において[Ca]、[Mg]、及び[N]は、それぞれ潤滑油組成物中のカルシウム、マグネシウム、及び無灰分散剤由来の窒素の濃度(質量%)である)
で求められるYが、Y≧0.18を満たし、
下記式(4)
Q=[Ca]+0.05[Mg] (4)
(上記式(4)において[Ca]、[Mg]は、それぞれ潤滑油組成物中のカルシウム、マグネシウムの濃度(質量%)である)
で求められるQが、Q≦0.15を満たし、且つ
下記式(5)
W=[Ca]+1.65[Mg] (5)
(上記式(5)において[Ca]、[Mg]は、それぞれ潤滑油組成物中のカルシウム、マグネシウムの濃度(質量%)である)
で求められるWが、0.14≦W≦1.0を満たす潤滑油組成物に関する。
X’=0.5[Mg]×8−[Mo]×8−[P]×30 (1')
(上記式(1')において、[Mg]、[Mo]、[P]は、それぞれ潤滑油組成物中のマグネシウム、モリブデン、リンの濃度(質量%)を示す)
上記式(1’)で求められるX’の値がX’≦−0.85を満たすことによりLSPIの発生を効果的に抑制することができる。
X’’=[Ca]×8−[Mo]×8−[P]×30 (1'')
(上記式(1'')において、[Ca]、[Mo]、[P]は、それぞれ潤滑油組成物中のカルシウム、モリブデン、リンの濃度(質量%)を示す)
上記式(1’’)で求められるX’’の値がX’’≦−0.85を満たすことによりLSPIの発生を効果的に抑制することができる。
Y’=1.65[Mg]+[N] (2')
(上記式(2')において、[Mg]及び[N]は、それぞれ潤滑油組成物中のマグネシウム及び無灰分散剤由来の窒素の濃度(質量%)を示す)
上記式(2’)で求められるY’の値がY’≧0.18を満たすことによりLSPI発生頻度を低下しながら、潤滑油組成物の清浄性を確保することができる。
Y’’=[Ca]+[N] (2'')
(上記式(2'')において、[Ca]及び[N]は、それぞれ潤滑油組成物中のカルシウム及び無灰分散剤由来の窒素の濃度(質量%)を示す)
上記式(2’’)で求められるY’’の値がY’’≧0.18を満たすことによりLSPI発生頻度を低下しながら、潤滑油組成物の清浄性を確保することができる。
Z=[N]/([Ca]+[Mg]) (3)
Zは、好ましくは0.35〜1.3以下である。上記式において[Ca]、[Mg]、及び[N]は、潤滑油組成物中のカルシウム、マグネシウム、及び無灰分散剤由来の窒素の含有量(質量%)である。
Z’=[N]/[Mg] (3’)
上記式(3’)で求められるZ’が0.3〜1.5を満たすことが好ましい。
Z’’=[N]/[Ca] (3’’)
上記式(3’’)で求められるZ’’が0.3〜1.5を満たすことが好ましい。
Q=[Ca]+0.05[Mg] (4)
(上記式(4)において[Ca]、[Mg]は、それぞれ潤滑油組成物中のカルシウム、マグネシウムの濃度(質量%)である)
で求められるQが、Q≦0.15を満たし、
下記式(5)
W=[Ca]+1.65[Mg] (5)
(上記式(5)において[Ca]、[Mg]は、それぞれ潤滑油組成物中のカルシウム、マグネシウムの濃度(質量%)である)
で求められるWが、0.14≦W≦1.0を満たす潤滑油組成物である。以下、式(4)及び式(5)について詳細に説明する。
Q’=0.05[Mg] (4’)
上記式(5)は以下の式(5’)となる。
W’=1.65[Mg] (5’)
潤滑油組成物に含まれるマグネシウムの量[Mg](質量%)は、上記Q’の値が、Q’≦0.15を満たし、且つ、上記W’の値が、0.14≦W’≦1.0を満たす量であればよい。すなわち0.08≦[Mg]≦0.6の量である。好ましくは0.1≦[Mg]≦0.25である。
上記本発明において潤滑油基油は、鉱油及び合成油のいずれであってもよく、これらを単独で使用することもできれば、混合して使用することもできる。鉱油としては、例えば、原油を常圧蒸留して得られる常圧残油を減圧蒸留して得られた潤滑油留分を、溶剤脱れき、溶剤抽出、水素化分解、溶剤脱ろう、水素化精製等の処理を1つ以上行って精製したもの、或いは、ワックス異性化鉱油、GTL(Gas to Liquid)基油、ATL(Asphalt to Liquid)基油、植物油系基油またはこれらの混合基油を挙げることができる。
添加剤は潤滑油組成物に添加される公知のものを使用することができる。本発明の潤滑油組成物は、カルシウム及びマグネシウムから選ばれる少なくとも1種を有する添加剤の少なくとも1種、モリブデン及びリンから選ばれる少なくとも1種を有する添加剤の少なくとも1種を含む。該添加剤としては、金属清浄剤、摩耗防止剤、摩擦調整剤が挙げられる。また、上述の通り本発明の潤滑油組成物は窒素を有する無灰分散剤を含む。以下、これらの添加剤について詳細に説明する。
金属清浄剤は特に限定されるものでないが、カルシウム及びマグネシウムから選択される少なくとも1種を有する金属清浄剤の1種以上であるのが好ましい。
摩耗防止剤は従来公知のものを使用することができる。中でも、リンを有する摩耗防止剤が好ましく、特には下記式で示されるジチオリン酸亜鉛(ZnDTP(ZDDPともいう))が好ましい。
摩擦調整剤は従来公知のものを使用することができる。例えば、モリブデンジチオホスフェート(MoDTP)及びモリブデンジチオカーバメート(MoDTC)等の硫黄を含有する有機モリブデン化合物、モリブデン化合物と硫黄含有有機化合物又はその他の有機化合物との錯体等、或いは、硫化モリブデン、硫化モリブデン酸等の硫黄含有モリブデン化合物とアルケニルコハク酸イミドとの錯体等を挙げることができる。前記モリブデン化合物としては、例えば、二酸化モリブデン、三酸化モリブデン等の酸化モリブデン、オルトモリブデン酸、パラモリブデン酸、(ポリ)硫化モリブデン酸等のモリブデン酸、これらモリブデン酸の金属塩、アンモニウム塩等のモリブデン酸塩、二硫化モリブデン、三硫化モリブデン、五硫化モリブデン、ポリ硫化モリブデン等の硫化モリブデン、硫化モリブデン酸、硫化モリブデン酸の金属塩又はアミン塩、塩化モリブデン等のハロゲン化モリブデン等が挙げられる。硫黄含有有機化合物としては、例えば、アルキル(チオ)キサンテート、チアジアゾール、メルカプトチアジアゾール、チオカーボネート、テトラハイドロカルビルチウラムジスルフィド、ビス(ジ(チオ)ハイドロカルビルジチオホスホネート)ジスルフィド、有機(ポリ)サルファイド、硫化エステル等が挙げられる。特にはモリブデンジチオホスフェート(MoDTP)及びモリブデンジチオカーバメート(MoDTC)等の有機モリブデン化合物が好ましい。これらは、1分子中に異なる炭素数及び/又は異なる構造の炭化水素基を有する化合物を使用することもできる。
本発明の潤滑油組成物は無灰分散剤を含有することにより清浄性を確保できる。無灰分散剤としては、炭素数40〜500、好ましくは60〜350の直鎖若しくは分枝状のアルキル基又はアルケニル基を分子中に少なくとも1個有する含窒素化合物又はその誘導体、マンニッヒ系分散剤、或いはモノ又はビスコハク酸イミド(例えば、アルケニルコハク酸イミド)、炭素数40〜500のアルキル基又はアルケニル基を分子中に少なくとも1個有するベンジルアミン、或いは炭素数40〜400のアルキル基又はアルケニル基を分子中に少なくとも1個有するポリアミン、或いはこれらのホウ素化合物、カルボン酸、リン酸等による変成品等が挙げられる。これらの中から任意に選ばれる1種類又は2種類以上を配合することができる。特に本発明においては、アルケニルコハク酸イミドを含有することが好ましい。
本発明の潤滑油組成物に含むことができる上記以外の添加剤として、粘度指数向上剤が挙げられる。該粘度指数向上剤としては例えば、ポリメタアクリレート、分散型ポリメタアクリレート、オレフィンコポリマー(ポリイソブチレン、エチレン−プロピレン共重合体)、分散型オレフィンコポリマー、ポリアルキルスチレン、スチレン−ブタジエン水添共重合体、スチレン−無水マレイン酸エステル共重合体、星状イソプレン等を含むものが挙げられる。
本発明の潤滑油組成物は、その性能を向上させるために、目的に応じてその他の添加剤をさらに含有することができる。その他の添加剤としては一般的に潤滑油組成物に使用されているものを使用できるが、例えば、酸化防止剤、上記[B]成分以外の摩耗防止剤(又は極圧剤)、腐食防止剤、防錆剤、流動点降下剤、抗乳化剤、金属不活性化剤、消泡剤等の添加剤等を挙げることができる。
以下に示す各成分を表1〜3に記載の組成(全成分の合計質量(100質量%)に対する質量%)で混合することにより潤滑油組成物No.1〜29を調製した。
[潤滑油基油]
基油の量は、該基油により潤滑油組成物の全量を100質量%とする量(残部)である。
・基油1:水素化分解基油(鉱油)、粘度指数:125、100℃動粘度:4mm2/s
・基油2:水素化分解基油(鉱油)、粘度指数:135、100℃動粘度:4mm2/s
・基油3:水素化分解基油(鉱油)とポリ−α−オレフィンの混合物、粘度指数:125、100℃動粘度:4mm2/s
[添加剤]
[A]金属清浄剤
金属清浄剤は、潤滑油組成物中に含まれるカルシウム及びマグネシウムの量が表1〜3に記載の量となるように配合した。
・金属清浄剤1:カルシウムスルフォネート(全塩基価300mgKOH/g、カルシウム含有量12質量%)
・金属清浄剤2:カルシウムサリシレート(全塩基価350mgKOH/g、カルシウム含有量13質量%)
・金属清浄剤3:カルシウムサリシレート(全塩基価60mgKOH/g、カルシウム含有量2質量%)
・金属清浄剤4:マグネシウムスルフォネート(全塩基価400mgKOH/g、マグネシウム含有量9質量%)
・金属清浄剤5:カルシウムフェネート(全塩基価260mgKOH/g、カルシウム含有量9質量%)
・金属清浄剤6:マグネシウムサリシレート(全塩基価340mgKOH/g、マグネシウム含有量8質量%)
[B]摩耗防止剤
摩耗防止剤は、潤滑油組成物中に含まれるリンの量が表1〜3に記載の量となるように配合した。
・摩耗防止剤1:sec−ZnDTP(第二級アルキルタイプ、C3、C6、P含有量8質量%)
・摩耗防止剤2:pri−ZnDTP(第一級アルキルタイプ、C8)とsec−ZnDTP(第二級アルキルタイプ、C3、C6)の混合物(P含有量8質量%)
[C]摩擦調整剤
摩擦調整剤は、潤滑油組成物中に含まれるモリブデンの量が表1〜3に記載の量となるように配合した。
・摩擦調整剤1:MoDTC(Mo含有量10質量%、S含有量11質量%)
・摩擦調整剤2:アルキルチオカルバミドモリブデン錯体(Mo含有量6質量%、S含有量10質量%)
[D]無灰分散剤
無灰分散剤は、潤滑油組成物中に含まれる窒素の量が表1〜3に記載の量となるように配合した。
・無灰分散剤1:ホウ素変性ポリイソブテニルコハク酸イミド(窒素含有量1.7質量%、ホウ素含有量0.4質量%、無灰分散剤の数平均分子量(Mn)6,000)
・無灰分散剤2:非ホウ素変性ポリイソブテニルコハク酸イミド(窒素含有量1.2質量%、無灰分散剤の数平均分子量(Mn)6,000)
・無灰分散剤3:ホウ素変性ポリイソブテニルコハク酸イミド(窒素含有量2.1質量%、ホウ素含有量0.02質量%、無灰分散剤の数平均分子量(Mn)3,000)
[E]粘度指数向上剤
粘度指数向上剤は、潤滑油組成物中に含まれる下記ポリマーの量が表1〜3に記載の量となるように配合した。
・粘度指数向上剤1: オレフィンコポリマー(Mw 200,000)の含有量が10重量%
・粘度指数向上剤2: ポリメタアクリレート(Mw 300,000)の含有量が20重量%
[その他の添加剤]
・酸化防止剤、消泡剤、流動点降下剤を含むパッケージ
[実施例1〜20及び比較例1〜9]
上記で得た潤滑油組成物No.1〜29各々について、潤滑油組成物中のカルシウムの濃度(質量%)[Ca]、マグネシウムの濃度(質量%)[Mg]、モリブデンの濃度(質量%)[Mo]、リンの濃度(質量%)[P]、及び無灰分散剤に由来する窒素濃度(質量%)[N]を、下記式(1)〜(3)に当てはめた。得られたX、Y、及びZの値を表4〜6に記載する。
式(1):X=([Ca]+0.5[Mg])×8−[Mo]×8−[P]×30
式(2):Y=[Ca]+1.65[Mg]+[N]
式(3):Z=[N]/([Ca]+[Mg])
潤滑油組成物No.1〜29各々を使用し、直列4気筒の過給ガソリン直噴エンジンを用い、1800回転、スロットル全開条件にて、各気筒に装着した燃焼圧センサを用いて1時間に発生するLSPIの回数を測定した。比較例1の潤滑油組成物(No.21)にて発生したLSPIの回数を1.0(基準)として算出したLSPI発生頻度(相対値)を表4〜6に記載する。LSPI発生頻度が基準油(比較例1)の発生頻度の3分の1以下のものを合格とした。結果を表4〜6に示す。
潤滑油組成物No.1〜29各々について、JPI−5S−55−99に準拠してホットチューブテストを行った。試験方法の詳細を以下に記載する。
内径2mmのガラス管中に、潤滑油組成物を0.3ミリリットル/時で、空気を10ミリリットル/秒で、ガラス管の温度を280℃に保ちながら16時間流し続けた。ガラス管中に付着したラッカーと色見本とを比較し、透明の場合は10点、黒の場合は0点として評点を付けた。評点が高いほど高温清浄性が良いことを示す。評点が3.5以上のものを合格とした。結果を表4〜6に示す。
潤滑油組成物30〜32の調製
上記した基油及び添加剤を下記表7に記載の組成(全成分の合計質量(100質量%)に対する質量%)で混合することにより、潤滑油組成物No.30〜32を調製した。
上記で調整した潤滑油組成物No.1〜32各々について、潤滑油組成物中のカルシウムの濃度(質量%)[Ca]、及びマグネシウムの濃度(質量%)[Mg]を、下記式(4)及び(5)に当てはめた。得られたQ及びWの値を表8〜10及び表12〜13に記載する。
式(4):Q=[Ca]+0.05[Mg]
式(5):W=[Ca]+1.65[Mg]
潤滑油組成物No.1〜32各々について、ASTM−D6557に準拠してBall Rust test(BRT)を行い、防錆性を評価した。測定により得られた平均グレー値が高いほど錆の形成が少ないことを示す。得られた値が100以上を合格とした。結果を表8〜10及び表12〜13に示す。
潤滑油組成物No.1〜32各々について、JIS K 2272「原油及び石油製品―灰分及び硫酸灰分試験方法」に準拠して、硫酸灰分量(質量%)を測定した。硫酸灰分量の値が3質量%以下を合格とした。結果を表8〜10及び表12〜13に示す。
潤滑油組成物No.30〜32について、上記した方法により、低速プレイグニッション(LSPI)頻度の測定及びホットチューブテストを行った。結果を表10に示す。
上記した基油及び添加剤を下記表14に記載の組成(質量%)で混合することにより潤滑油組成物No.33〜35を調製した。
Claims (12)
- 潤滑油基油と、カルシウム及びマグネシウムから選ばれる少なくとも1種を有する化合物、モリブデン及びリンから選ばれる少なくとも1種を有する化合物、及び窒素を有する無灰分散剤を含む過給ガソリンエンジン用潤滑油組成物であって、
下記式(1)
X=([Ca]+0.5[Mg])×8−[Mo]×8−[P]×30 (1)
(上記式(1)において[Ca]、[Mg]、[Mo]、及び[P]は、それぞれ潤滑油組成物中のカルシウム、マグネシウム、モリブデン、及びリンの濃度(質量%)である)
で求められるXが、X≦−1.2を満たし、
下記式(2)
Y=[Ca]+1.65[Mg]+[N] (2)
(上記式(2)において[Ca]、[Mg]、及び[N]は、それぞれ潤滑油組成物中のカルシウム、マグネシウム、及び無灰分散剤由来の窒素の濃度(質量%)である)
で求められるYが、Y≧0.18を満たし、及び
下記式(3)
Z=[N]/([Ca]+[Mg]) (3)
(上記式(3)において[Ca]、[Mg]、及び[N]は、それぞれ潤滑油組成物中のカルシウム、マグネシウム、及び無灰分散剤由来の窒素の濃度(質量%)である)
で求められるZが、Z=0.3〜1.5を満たす、過給ガソリンエンジン用潤滑油組成物。 - 潤滑油組成物中に含まれるリンの濃度[P]が、[P]≦0.12質量%を満たす、請求項1記載の過給ガソリンエンジン用潤滑油組成物。
- 潤滑油組成物中に含まれるモリブデンの濃度[Mo]が、[Mo]≦0.1質量%を満たす、請求項1又は2記載の過給ガソリンエンジン用潤滑油組成物。
- マグネシウムを有する化合物を必須に含む、請求項1〜3のいずれか1項記載の過給ガソリンエンジン用潤滑油組成物。
- 潤滑油組成物中に含まれるカルシウム及びマグネシウムの濃度[Ca]及び[Mg]が、[Ca]+1.65[Mg]≧0.08質量%を満たす、請求項1〜4のいずれか1項記載の過給ガソリンエンジン用潤滑油組成物。
- 潤滑油組成物全体の質量に対するマグネシウムの量が0.01〜0.6質量%である、請求項4または5記載の過給ガソリンエンジン用潤滑油組成物。
- 上記式(1)におけるXが、X≦−1.4を満たす、請求項1〜6のいずれか1項記載の過給ガソリンエンジン用潤滑油組成物。
- 潤滑油基油が100℃での動粘度2〜15mm2/sを有する、請求項1〜7のいずれか1項記載の過給ガソリンエンジン用潤滑油組成物。
- [A]カルシウム又はマグネシウムを有する金属清浄剤の1種以上を含む、請求項1〜8のいずれか1項記載の過給ガソリンエンジン用潤滑油組成物。
- [B]リンを有する摩耗防止剤の1種以上を含む、請求項1〜9のいずれか1項記載の過給ガソリンエンジン用潤滑油組成物。
- [C]モリブデンを有する摩擦調整剤の1種以上を含む、請求項1〜10のいずれか1項記載の過給ガソリンエンジン用潤滑油組成物。
- [E]粘度指数向上剤の1種以上を含む、請求項1〜11のいずれか1項記載の過給ガソリンエンジン用潤滑油組成物。
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- 2014-11-20 WO PCT/JP2014/080756 patent/WO2015114920A1/ja active Application Filing
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EP3101095A1 (en) | 2016-12-07 |
CN106164229B (zh) | 2022-06-28 |
EP3101095B1 (en) | 2023-11-22 |
CN106164229A (zh) | 2016-11-23 |
US20170022441A1 (en) | 2017-01-26 |
EP3101095A4 (en) | 2016-12-28 |
WO2015114920A1 (ja) | 2015-08-06 |
JP2015163673A (ja) | 2015-09-10 |
US10947475B2 (en) | 2021-03-16 |
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