US20210189284A1 - Lubricating oil composition - Google Patents
Lubricating oil composition Download PDFInfo
- Publication number
- US20210189284A1 US20210189284A1 US16/761,962 US201816761962A US2021189284A1 US 20210189284 A1 US20210189284 A1 US 20210189284A1 US 201816761962 A US201816761962 A US 201816761962A US 2021189284 A1 US2021189284 A1 US 2021189284A1
- Authority
- US
- United States
- Prior art keywords
- weight
- lubricating oil
- oil composition
- ppm
- viscosity
- 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.)
- Abandoned
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 187
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 166
- 239000011777 magnesium Substances 0.000 claims abstract description 71
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 69
- 239000012459 cleaning agent Substances 0.000 claims abstract description 68
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 63
- 239000011701 zinc Substances 0.000 claims abstract description 63
- 229910052796 boron Inorganic materials 0.000 claims abstract description 57
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 56
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 44
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 44
- 239000002199 base oil Substances 0.000 claims abstract description 19
- 230000001050 lubricating effect Effects 0.000 claims abstract description 13
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 10
- 239000011574 phosphorus Substances 0.000 claims abstract description 10
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000011575 calcium Substances 0.000 claims description 50
- 239000002270 dispersing agent Substances 0.000 claims description 38
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 35
- 229910052791 calcium Inorganic materials 0.000 claims description 35
- 239000011733 molybdenum Substances 0.000 claims description 29
- 229910052750 molybdenum Inorganic materials 0.000 claims description 29
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 28
- 239000003607 modifier Substances 0.000 claims description 23
- 229920000642 polymer Polymers 0.000 claims description 12
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 125000004432 carbon atom Chemical group C* 0.000 description 55
- -1 polyol ester Chemical class 0.000 description 43
- 150000001875 compounds Chemical class 0.000 description 29
- 239000003795 chemical substances by application Substances 0.000 description 23
- 238000006243 chemical reaction Methods 0.000 description 22
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 22
- 150000002430 hydrocarbons Chemical group 0.000 description 19
- 229910052751 metal Inorganic materials 0.000 description 18
- 239000002184 metal Substances 0.000 description 18
- 239000002253 acid Substances 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 13
- 238000012360 testing method Methods 0.000 description 13
- 239000000654 additive Substances 0.000 description 11
- 238000004140 cleaning Methods 0.000 description 11
- 239000003921 oil Substances 0.000 description 11
- 235000019198 oils Nutrition 0.000 description 11
- 125000003342 alkenyl group Chemical group 0.000 description 10
- 230000001603 reducing effect Effects 0.000 description 10
- 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 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 9
- 239000003963 antioxidant agent Substances 0.000 description 9
- 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 9
- 229910052708 sodium Inorganic materials 0.000 description 9
- 239000011734 sodium Substances 0.000 description 9
- 230000000996 additive effect Effects 0.000 description 8
- 230000003078 antioxidant effect Effects 0.000 description 8
- 239000002585 base Substances 0.000 description 8
- 229960002317 succinimide Drugs 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000005078 molybdenum compound Substances 0.000 description 7
- 150000002752 molybdenum compounds Chemical class 0.000 description 7
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 7
- 229910052717 sulfur Inorganic materials 0.000 description 7
- 0 [2*]OP(=S)(O[3*])S[Zn]SP(=S)(O[2*])O[3*] Chemical compound [2*]OP(=S)(O[3*])S[Zn]SP(=S)(O[2*])O[3*] 0.000 description 6
- 229910052783 alkali metal Inorganic materials 0.000 description 6
- 125000003118 aryl group Chemical group 0.000 description 6
- 125000000753 cycloalkyl group Chemical group 0.000 description 6
- 230000001747 exhibiting effect Effects 0.000 description 6
- 239000000446 fuel Substances 0.000 description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 125000002877 alkyl aryl group Chemical group 0.000 description 5
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 5
- 125000003710 aryl alkyl group Chemical group 0.000 description 5
- 150000001639 boron compounds Chemical class 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 5
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- VLAPMBHFAWRUQP-UHFFFAOYSA-L molybdic acid Chemical compound O[Mo](O)(=O)=O VLAPMBHFAWRUQP-UHFFFAOYSA-L 0.000 description 5
- 150000002894 organic compounds Chemical class 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 4
- 239000002518 antifoaming agent Substances 0.000 description 4
- 239000004327 boric acid Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 4
- 238000006386 neutralization reaction Methods 0.000 description 4
- 125000004430 oxygen atom Chemical group O* 0.000 description 4
- 229920000193 polymethacrylate Polymers 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 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 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 150000001340 alkali metals Chemical class 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 125000003277 amino group Chemical group 0.000 description 3
- 239000013556 antirust agent Substances 0.000 description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000000994 depressogenic effect Effects 0.000 description 3
- NPUKDXXFDDZOKR-LLVKDONJSA-N etomidate Chemical group CCOC(=O)C1=CN=CN1[C@H](C)C1=CC=CC=C1 NPUKDXXFDDZOKR-LLVKDONJSA-N 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 125000001841 imino group Chemical group [H]N=* 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000006078 metal deactivator Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002480 mineral oil Substances 0.000 description 3
- 229920000768 polyamine Polymers 0.000 description 3
- HUNGQTAXBUKZGQ-UHFFFAOYSA-N tripotassium borate hydrate Chemical compound O.[K+].[K+].[K+].[O-]B([O-])[O-] HUNGQTAXBUKZGQ-UHFFFAOYSA-N 0.000 description 3
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 2
- 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
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-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
- KCFQLCPMVCXRHF-UHFFFAOYSA-N O.[Na+].[Na+].[Na+].[O-]B([O-])[O-] Chemical compound O.[Na+].[Na+].[Na+].[O-]B([O-])[O-] KCFQLCPMVCXRHF-UHFFFAOYSA-N 0.000 description 2
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 125000003158 alcohol group Chemical group 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- 230000003466 anti-cipated effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 2
- 239000012964 benzotriazole Substances 0.000 description 2
- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 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
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 125000002704 decyl group Chemical group [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])* 0.000 description 2
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 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
- 125000003438 dodecyl group Chemical group [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])C([H])([H])C([H])([H])* 0.000 description 2
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229940072082 magnesium salicylate Drugs 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- OSWPMRLSEDHDFF-UHFFFAOYSA-N methyl salicylate Chemical compound COC(=O)C1=CC=CC=C1O OSWPMRLSEDHDFF-UHFFFAOYSA-N 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 150000002751 molybdenum Chemical class 0.000 description 2
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 125000001400 nonyl 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])[H] 0.000 description 2
- 125000002347 octyl 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])[H] 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 125000001147 pentyl group Chemical group C(CCCC)* 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
- 239000005077 polysulfide Substances 0.000 description 2
- 229920001021 polysulfide Polymers 0.000 description 2
- 150000008117 polysulfides Polymers 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- CYIDZMCFTVVTJO-UHFFFAOYSA-N pyromellitic acid Chemical compound OC(=O)C1=CC(C(O)=O)=C(C(O)=O)C=C1C(O)=O CYIDZMCFTVVTJO-UHFFFAOYSA-N 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- CQRYARSYNCAZFO-UHFFFAOYSA-N salicyl alcohol Chemical compound OCC1=CC=CC=C1O CQRYARSYNCAZFO-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 125000004434 sulfur atom Chemical group 0.000 description 2
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-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
- 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
- MBBWTVUFIXOUBE-UHFFFAOYSA-L zinc;dicarbamodithioate Chemical compound [Zn+2].NC([S-])=S.NC([S-])=S MBBWTVUFIXOUBE-UHFFFAOYSA-L 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
- MBIZXFATKUQOOA-UHFFFAOYSA-N 1,3,4-thiadiazole Chemical compound C1=NN=CS1 MBIZXFATKUQOOA-UHFFFAOYSA-N 0.000 description 1
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-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
- 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
- OPJWPPVYCOPDCM-UHFFFAOYSA-N 2-ethylhexyl octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(CC)CCCC OPJWPPVYCOPDCM-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
- NBPOOCGXISZKSX-UHFFFAOYSA-N 6-methylheptyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)CCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NBPOOCGXISZKSX-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 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
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-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
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical compound C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- JMAVSBPODDLPTK-UHFFFAOYSA-N O.[Rb+].[Rb+].[Rb+].[O-]B([O-])[O-] Chemical compound O.[Rb+].[Rb+].[Rb+].[O-]B([O-])[O-] JMAVSBPODDLPTK-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
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- ABBQHOQBGMUPJH-UHFFFAOYSA-M Sodium salicylate Chemical compound [Na+].OC1=CC=CC=C1C([O-])=O ABBQHOQBGMUPJH-UHFFFAOYSA-M 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
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- GORMSINSWZJIKL-UHFFFAOYSA-N [3-(2-ethylhexanoyloxy)-2,2-dimethylpropyl] 2-ethylhexanoate Chemical compound CCCCC(CC)C(=O)OCC(C)(C)COC(=O)C(CC)CCCC GORMSINSWZJIKL-UHFFFAOYSA-N 0.000 description 1
- AOZDHFFNBZAHJF-UHFFFAOYSA-N [3-hexanoyloxy-2,2-bis(hexanoyloxymethyl)propyl] hexanoate Chemical compound CCCCCC(=O)OCC(COC(=O)CCCCC)(COC(=O)CCCCC)COC(=O)CCCCC AOZDHFFNBZAHJF-UHFFFAOYSA-N 0.000 description 1
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- 150000001408 amides Chemical class 0.000 description 1
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- JYZIHLWOWKMNNX-UHFFFAOYSA-N benzimidazole Chemical compound C1=C[CH]C2=NC=NC2=C1 JYZIHLWOWKMNNX-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- SAOKZLXYCUGLFA-UHFFFAOYSA-N bis(2-ethylhexyl) adipate Chemical compound CCCCC(CC)COC(=O)CCCCC(=O)OCC(CC)CCCC SAOKZLXYCUGLFA-UHFFFAOYSA-N 0.000 description 1
- YKGYQYOQRGPFTO-UHFFFAOYSA-N bis(8-methylnonyl) hexanedioate Chemical compound CC(C)CCCCCCCOC(=O)CCCCC(=O)OCCCCCCCC(C)C YKGYQYOQRGPFTO-UHFFFAOYSA-N 0.000 description 1
- 229910052810 boron oxide Inorganic materials 0.000 description 1
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- 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 1
- CSNJTIWCTNEOSW-UHFFFAOYSA-N carbamothioylsulfanyl carbamodithioate Chemical compound NC(=S)SSC(N)=S CSNJTIWCTNEOSW-UHFFFAOYSA-N 0.000 description 1
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- 238000004517 catalytic hydrocracking Methods 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
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- ZDTISELLHLTUGQ-UHFFFAOYSA-N decanoic acid 2-ethyl-2-(hydroxymethyl)propane-1,3-diol Chemical compound CCC(CO)(CO)CO.CCCCCCCCCC(O)=O.CCCCCCCCCC(O)=O.CCCCCCCCCC(O)=O ZDTISELLHLTUGQ-UHFFFAOYSA-N 0.000 description 1
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- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 description 1
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- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
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- VJHINFRRDQUWOJ-UHFFFAOYSA-N dioctyl sebacate Chemical compound CCCCC(CC)COC(=O)CCCCCCCCC(=O)OCC(CC)CCCC VJHINFRRDQUWOJ-UHFFFAOYSA-N 0.000 description 1
- LZJUZSYHFSVIGJ-UHFFFAOYSA-N ditridecyl hexanedioate Chemical compound CCCCCCCCCCCCCOC(=O)CCCCC(=O)OCCCCCCCCCCCCC LZJUZSYHFSVIGJ-UHFFFAOYSA-N 0.000 description 1
- FVBSDVQDRFRKRF-UHFFFAOYSA-N ditridecyl pentanedioate Chemical compound CCCCCCCCCCCCCOC(=O)CCCC(=O)OCCCCCCCCCCCCC FVBSDVQDRFRKRF-UHFFFAOYSA-N 0.000 description 1
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 1
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- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
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- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([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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- 125000004491 isohexyl group Chemical group C(CCC(C)C)* 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
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- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
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- 125000002960 margaryl 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])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
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- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
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- TVWWSIKTCILRBF-UHFFFAOYSA-N molybdenum trisulfide Chemical compound S=[Mo](=S)=S TVWWSIKTCILRBF-UHFFFAOYSA-N 0.000 description 1
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- BRESEFMHKFGSDY-UHFFFAOYSA-N molybdenum;pyrrolidine-2,5-dione Chemical compound [Mo].O=C1CCC(=O)N1 BRESEFMHKFGSDY-UHFFFAOYSA-N 0.000 description 1
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 1
- 125000001421 myristyl 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])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 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 1
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- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- 125000000913 palmityl 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])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- PYUBPZNJWXUSID-UHFFFAOYSA-N pentadecapotassium;pentaborate Chemical compound [K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-] PYUBPZNJWXUSID-UHFFFAOYSA-N 0.000 description 1
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- 230000000979 retarding effect Effects 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
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- NESLWCLHZZISNB-UHFFFAOYSA-M sodium phenolate Chemical compound [Na+].[O-]C1=CC=CC=C1 NESLWCLHZZISNB-UHFFFAOYSA-M 0.000 description 1
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- 125000004079 stearyl 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])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
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
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- VLCLHFYFMCKBRP-UHFFFAOYSA-N tricalcium;diborate Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]B([O-])[O-].[O-]B([O-])[O-] VLCLHFYFMCKBRP-UHFFFAOYSA-N 0.000 description 1
- AFUZWAQKAKZDJX-UHFFFAOYSA-N tricesium borate hydrate Chemical compound O.[Cs+].[Cs+].[Cs+].[O-]B([O-])[O-] AFUZWAQKAKZDJX-UHFFFAOYSA-N 0.000 description 1
- 125000002889 tridecyl 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])C([H])([H])C([H])([H])[H] 0.000 description 1
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- MDSAKXJFNPPBMV-UHFFFAOYSA-N trilithium borate hydrate Chemical compound [Li+].[Li+].[Li+].O.[O-]B([O-])[O-] MDSAKXJFNPPBMV-UHFFFAOYSA-N 0.000 description 1
- WUUHFRRPHJEEKV-UHFFFAOYSA-N tripotassium borate Chemical compound [K+].[K+].[K+].[O-]B([O-])[O-] WUUHFRRPHJEEKV-UHFFFAOYSA-N 0.000 description 1
- 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
- 235000015112 vegetable and seed oil Nutrition 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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
-
- 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
- C10M157/10—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 at least one of them being a compound containing atoms of elements not provided for in groups C10M157/02 - C10M157/08
-
- 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
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/26—Carboxylic acids; Salts thereof
- C10M129/48—Carboxylic acids; Salts thereof having carboxyl groups bound to a carbon atom of a six-membered aromatic ring
- C10M129/54—Carboxylic acids; Salts thereof having carboxyl groups bound to a carbon atom of a six-membered aromatic ring containing hydroxy 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
- C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
- C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
- C10M133/38—Heterocyclic nitrogen compounds
- C10M133/44—Five-membered ring containing nitrogen and carbon only
-
- 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
- C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
- C10M135/08—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium containing a sulfur-to-oxygen bond
- C10M135/10—Sulfonic acids or derivatives 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
- C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
- C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
- C10M137/04—Phosphate esters
- C10M137/10—Thio derivatives
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M139/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing atoms of elements not provided for in groups C10M127/00 - C10M137/00
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- 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
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- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
- C10M145/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M145/10—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
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- C10M145/14—Acrylate; Methacrylate
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- 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
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- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/003—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions used as base material
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- 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
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/144—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings containing hydroxy groups
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- C10M2207/26—Overbased carboxylic acid salts
- C10M2207/262—Overbased carboxylic acid salts derived from hydroxy substituted aromatic acids, e.g. salicylates
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- 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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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
- C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
- C10M2215/28—Amides; Imides
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- C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
- C10M2215/30—Heterocyclic compounds
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- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/046—Overbased sulfonic acid salts
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- 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
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- 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
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/06—Organic compounds derived from inorganic acids or metal salts
- C10M2227/061—Esters derived from boron
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2010/00—Metal present as such or in compounds
- C10N2010/04—Groups 2 or 12
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- C10N2010/00—Metal present as such or in compounds
- C10N2010/12—Groups 6 or 16
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- 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
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- 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
- C10N2030/04—Detergent property or dispersant property
- C10N2030/041—Soot induced viscosity control
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- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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- 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
- C10N2030/40—Low content or no content compositions
- C10N2030/42—Phosphor free or low phosphor content compositions
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- 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
- C10N2030/40—Low content or no content compositions
- C10N2030/44—Boron free or low content boron compositions
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- 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
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- 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
- C10N2040/255—Gasoline engines
Definitions
- the present invention relates to a lubricating oil composition, specifically to a lubricating oil composition for an internal combustion engine, and particularly to a lubricating oil composition for a gasoline engine.
- a lubricating oil composition is widely used in the automotive field, for example, for an internal combustion engine, an automatic transmission, a gear oil, and the like.
- MoDTC molybdenum dithiocarbamate
- 2016/159258 discloses a lubricating oil composition containing a base oil, a calcium type cleaning agent, a magnesium type cleaning agent, molybdenum dithiocarbamate, a boron-free succinimide, a boron-containing succinimide, and a viscosity index improver, and that the lubricating oil composition is excellent in fuel consumption reduction, and such fuel consumption reduction effect can be obtained in a short time owing to the friction reducing effect.
- the present applicant has found that the friction can be reduced by using a specific amount of a boron-containing succinimide, as well as a primary alkyl group-containing zinc dialkyl dithiophosphate and a secondary alkyl group-containing zinc dialkyl dithiophosphate at a specific ratio, and has already filed a patent application (Japanese Patent Application No. 2016-152180).
- the present invention aims at a viscosity still lower than the lubricating oil composition described in the above PTL 5.
- the viscosity of a lubricating oil composition is further reduced, the thickness of the oil film decreases, and the lubricating condition becomes even more severe.
- An object of the present invention is to provide a lubricating oil composition which can reduce friction even under such conditions.
- an object is (1) to form a uniform reaction film slowly by decreasing the formation rate of a reaction film reaction film, so as to acquire viscosity lowering capability, and (2) to lower the friction of the formed reaction film itself, with a lubricating oil having a lower viscosity than in the past.
- an object of the present invention is to reduce friction, even when the viscosity of a lubricating oil composition is further reduced compared to a conventional lubricating oil composition, especially when the kinematic viscosity is less than 6.1 mm 2 /s at 100° C., and the high temperature high shear viscosity (HTHS viscosity) at 150° C. is not less than 1.3 but less than 2.3 mPa ⁇ s.
- Another object is to provide a lubricating oil composition for an internal combustion engine as a more preferable embodiment, and more preferably a lubricating oil composition for a supercharged gasoline engine.
- a zinc dialkyl dithiophosphate having a secondary alkyl group has higher reactivity than a zinc dialkyl dithiophosphate having a primary alkyl group. Therefore, by increasing the proportion of a zinc dialkyl dithiophosphate having a primary alkyl group, it can be expected that the formation rate of a reaction film can be retarded. By retarding the formation rate of a reaction film, a homogeneous reaction film is formed slowly, and it can be anticipated that the orientation and coverage of the reaction film is improved, and furthermore, reduction of the friction of the reaction film itself can be also achieved.
- the present inventors have investigated the optimal balance of (1) the proportion of a zinc dialkyl dithiophosphate having a primary alkyl group, and (2) reduction of the amount of boron-containing dispersant, to find that a friction reducing effect can be achieved with a lubricating oil composition having further lower viscosity characteristics (in particular, kinematic viscosity at 100° C. of less than 6.1 mm 2 /s, and high temperature high shear viscosity (HTHS viscosity) at 150° C.
- a lubricating oil composition comprising a lubricating base oil, a cleaning agent containing magnesium, and a zinc dialkyl dithiophosphate, by limiting the boron content in the composition to a specified amount or less, and specifying the proportion of a zinc dialkyl dithiophosphate having a primary alkyl group.
- the present invention is a lubricating oil composition
- a lubricating oil composition comprising a lubricating base oil, (A) a cleaning agent containing magnesium, and (B) a zinc dialkyl dithiophosphate, wherein the amount of component (A) in terms of ppm by weight of magnesium ([Mg]) based on the total weight of the lubricating oil composition is in a range of 200 to 1200 ppm by weight; the amount of component (B) in terms of ppm by weight of phosphorus ([P]) based on the total weight of the lubricating oil composition is in a range of 300 to 1000 ppm by weight; wherein component (B) comprises (B-1) a zinc dialkyl dithiophosphate having a primary alkyl group, and the proportion of the weight of component (B-1) to the total weight of component (B) is 30 weight % or more, and wherein the concentration of boron [B] in terms of ppm by weight of boron based
- the lubricating oil composition has additionally at least one of features (1) to (9) described below.
- the lubricating oil composition further comprises (C) a dispersant, and the amount of component (C) is 0.1 to 8 weight % based on the total weight of the lubricating oil composition.
- the lubricating oil composition further comprises (A′) a cleaning agent containing calcium, and ([Mg]/([Mg]+[Ca])) ⁇ 100 ⁇ 5, wherein [Ca] represents the concentration of calcium in terms of ppm by weight based on the weight of the lubricating oil composition, is satisfied.
- the lubricating oil composition further comprises a friction modifier containing molybdenum, and the concentration [Mo] of molybdenum in terms of ppm by weight based on the weight of the lubricating oil composition is from 200 to 1400 ppm by weight.
- the lubricating oil composition further comprises a viscosity index improver, and the amount of the viscosity index improver in terms of the amount of polymer contained in the viscosity index improver based on the total weight of the lubricating oil composition is 1 weight % or less.
- the CCS viscosity at ⁇ 35° C. is 6.2 Pa ⁇ s or less.
- the high temperature high shear viscosity (HTHS viscosity) at 150° C. is not less than 1.3 mPa ⁇ s but less than 2.3 mPa ⁇ s.
- the kinematic viscosity at 100° C. is less than 6.1 mm 2 /s.
- the lubricating oil composition is for an internal combustion engine.
- the lubricating oil composition is for a supercharged gasoline engine.
- the present invention is related to a method of reducing friction by using the lubricating oil composition or the lubricating oil composition according to any one of above embodiments (1) to (9).
- the low viscosity condition of a lubricating oil composition targeted by the present invention is as described above, in particular, the kinematic viscosity at 100° C. is less than 6.1 mm 2 /s, and the high temperature high shear viscosity (HTHS viscosity) at 150° C. is not less than 1.3 mPa ⁇ s but less than 2.3 mPa ⁇ s.
- the above targets a lubricating oil composition aiming at a viscosity lower than the viscosity, which the prior invention of the present invention, namely the invention described in Japanese Patent Application No. 2016-152180 (PTL 5), aimed at.
- the antiwear performance was secured and the friction was reduced successfully with a low viscosity lubricating oil composition exhibiting a kinematic viscosity at 100° C. of less than 9.3 mm 2 /s, particularly not less than 6.1 mm 2 /s but less than 9.3 mm 2 /s, and a high temperature high shear viscosity(HTHS viscosity) at 150° C. of particularly 2.3 to 2.9 mPa ⁇ s, by including a boron-containing compound in an amount in a range of 100 to 300 ppm by weight in terms of the weight of boron contained in the composition, and including mandatorily a zinc dialkyl dithiophosphate having a secondary alkyl group.
- a kinematic viscosity at 100° C. of less than 9.3 mm 2 /s, particularly not less than 6.1 mm 2 /s but less than 9.3 mm 2 /s, and a high temperature high shear viscosity(HTHS viscos
- the present inventors have found that a friction reducing effect can be achieved based on a lubricating oil composition exhibiting viscosity characteristics lower than before (in particular, the kinematic viscosity at 100° C. of less than 6.1 mm 2 /s, and the high temperature high shear viscosity (HTHS viscosity) at 150° C.
- a lubricating oil composition exhibiting viscosity characteristics lower than before (in particular, the kinematic viscosity at 100° C. of less than 6.1 mm 2 /s, and the high temperature high shear viscosity (HTHS viscosity) at 150° C.
- FIG. 1 is a graph representing the average friction coefficient at each time point measured with a MTM traction machine in a medium speed range (20 to 300 mm/s) with respect to a lubricating oil composition exhibiting a HTHS 150 of 2.3 mPa ⁇ s.
- FIG. 1 is a graph representing the average friction coefficient at each time point measured with a MTM traction machine in a medium speed range (20 to 300 mm/s) with respect to a lubricating oil composition exhibiting a HTHS 150 of 2.3 mPa ⁇ s.
- FIGS. 1 and 2 are graph representing the average friction coefficient at each time point measured with a MTM traction machine in a medium speed range (20 to 300 mm/s) with respect to a lubricating oil composition exhibiting a HTHS 150 of 1.7 mPa ⁇ s.
- a MTM traction machine in a medium speed range (20 to 300 mm/s) with respect to a lubricating oil composition exhibiting a HTHS 150 of 1.7 mPa ⁇ s.
- the dotted line represents the friction coefficient of the composition in which the concentration of boron [B] in terms of ppm by weight of boron based on the total weight of the lubricating oil composition is 0 ppm
- the solid line represents the friction coefficient of the composition in which the concentration of boron [B] in terms of ppm by weight of boron based on the total weight of the lubricating oil composition is 200 ppm.
- the friction can be decreased, even when the viscosity is lowered as compared with the conventional one.
- the friction can be reduced even at a low viscosity of less than 6.1 mm 2 /s in terms of kinematic viscosity at 100° C.
- the lubricating oil composition may be used more preferably as a lubricating oil composition for an internal combustion engine, or further preferably as a lubricating oil composition for a supercharged gasoline engine favorably.
- FIG. 1 is a graph representing the average friction coefficient of a lubricating oil composition having a HTHS 150 of 2.3 mPa ⁇ s.
- FIG. 2 is a graph representing the average friction coefficient of a lubricating oil composition having a HTHS 150 of 1.7 mPa ⁇ s.
- FIG. 3 is a schematic view illustrating a mode of a ball-on-disk friction test.
- a lubricating oil composition according to the present invention is characterized in that the amount of boron contained in the composition is less than 100 ppm by weight in terms of ppm by weight of boron [B] based on the total weight of the composition.
- the boron content is preferably less than 80 ppm by weight, more preferably less than 50 ppm by weight, further preferably less than 20 ppm by weight, and most preferably 0 ppm by weight.
- it is preferable that the amount of boron contained in the composition is as small as possible. By doing so, a uniform reaction film may be formed, and the friction coefficient may be reduced.
- the boron to be added to a lubricating oil composition is derived from a conventionally known additive, provided that its origin is not particularly limited. In particular, it is derived from a boron-containing ashless dispersant, which is an optional component (C) described later.
- a lubricating base oil there is no particular restriction on a lubricating base oil according to the present invention. Any of mineral oils and synthetic oils may be used, and these may be used singly or in mixture.
- Examples of a mineral oil include an oil obtained by distilling a crude oil under an atmospheric pressure to obtain an atmospheric residue, vacuum-distilling the atmospheric residue to obtain a lubricating oil fraction, and then refining the lubricating oil fraction by one or more treatments selected from solvent deasphalting, solvent extraction, hydrocracking, solvent dewaxing, hydrofining, and the like; a wax isomerized mineral oil; a GTL (Gas to Liquid) base oil; an ATL (Asphalt to Liquid) base oil; a vegetable oil type base oil; and a mixed base oil thereof.
- Examples of a synthetic oil include polybutene or a hydrogenated product thereof; a poly( ⁇ -olefin), such as 1-octene oligomer, and 1-decene oligomer, or a hydrogenated product thereof; a monoester, such as 2-ethylhexyl laurate, 2-ethylhexyl palmitate, and 2-ethylhexyl stearate; a diester, such as ditridecyl glutarate, di-2-ethylhexyl adipate, di-isodecyl adipate, ditridecyl adipate, and di-2-ethylhexyl sebacate; a polyol ester, such as neopentyl glycol di-2-ethylhexanoate, neopentyl glycol di-n-octanoate, neopentyl glycol di-n-decanoate, trimethyl
- kinematic viscosity (mm 2 /s) at 100° C. of a lubricating base oil, and it is preferably 2 to 10 mm 2 /s, more preferably 2 to 8 mm 2 /s, further preferably 2 to 6 mm 2 /s, and most preferably 3 to 5 mm 2 /s.
- a lubricating oil composition which is capable of forming an oil film adequately, is excellent in lubricity, and able to make the evaporation loss low.
- VI viscosity index
- a cleaning agent containing magnesium (hereinafter referred to as “magnesium type cleaning agent”) is mandatory for a lubricating oil composition according to the present invention.
- the magnesium type cleaning agent is a compound containing magnesium, and those conventionally used as a metal type cleaning agent for a lubricating oil composition may be used without any particular limitation. Examples thereof include magnesium sulfonate, magnesium phenate, and magnesium salicylate. Among them, magnesium salicylate, or magnesium sulfonate is particularly preferable.
- the magnesium type cleaning agents may be used singly, or in mixture of two or more kinds thereof.
- component (A) By including a magnesium type cleaning agent as component (A), the high temperature cleaning performance and the antirust performance required as a lubricating oil may be secured. In addition, the friction can be reduced. This is advantageous particularly in terms of fuel consumption characteristics.
- a magnesium type cleaning agent is added in such an amount that the concentration [Mg] in terms of ppm by weight of magnesium based on the total weight of the lubricating oil composition is in a range of 200 to 1200 ppm by weight, preferably 300 to 1100 ppm by weight, and more preferably 400 to 1000 ppm by weight.
- the amount of a magnesium type cleaning agent exceeds the upper limit, the wear becomes too large, and when it is below the lower limit, the friction reduction effect is low.
- a magnesium type cleaning agent is especially preferably overbasic. In such a case, it is possible to secure acid neutralization performance, which is necessary for a lubricating oil. In a case where an overbasic magnesium type cleaning agent is used, a neutral magnesium type or calcium type cleaning agent may be admixed.
- the total base number of a magnesium type cleaning agent is preferably 20 to 600 mg KOH/g, more preferably 50 to 500 mg KOH/g, and most preferably 100 to 450 mg KOH/g. In such a case, it possible to secure acid neutralization performance, high temperature cleaning performance and antirust performance necessary for a lubricating oil.
- the base number obtained from the mixture is preferably in the above-mentioned range.
- the magnesium content in a magnesium type cleaning agent is preferably 0.5 to 20 weight %, more preferably 1 to 16 weight %, and most preferably 2 to 14 weight %, it is acceptable so long as magnesium is added so that the lubricating oil composition comes to contain it in the above described range.
- a lubricating oil composition according to the present invention may contain another metal type cleaning agent in addition to the above described magnesium type cleaning agent.
- the metal type cleaning agent may be a common one used in the conventional lubricating oil composition.
- a cleaning agent containing calcium (A′) (hereinafter referred to as “calcium type cleaning agent”) is used together.
- a lubricating oil composition further contains a calcium type cleaning agent, it is possible to further secure the high temperature cleaning performance and antirust performance required for a lubricating oil.
- a calcium type cleaning agent (A′) is a compound containing calcium, and it is possible to use the one used as a metal type cleaning agent in the conventional lubricating oil composition without any particularly restriction. Examples thereof include calcium sulfonate, calcium phenate, and calcium salicylate.
- the calcium type cleaning agents may be used singly, or in mixture of two or more kinds thereof.
- the amount of the component (A′) preferably satisfies following formula (1).
- [Ca] represents the concentration of calcium in terms of ppm by weight of calcium based on the weight of the lubricating oil composition.
- the value of ⁇ [Mg]/([Mg]+[Ca]) ⁇ 100 is preferably 10 or more, more preferably 15 or more, and especially preferably 20 or more. When the value is less than the lower limit, the friction reducing effect is small.
- the upper limit of ⁇ [Mg]/([Mg]+[Ca]) ⁇ 100 is preferably 100, more preferably 80, further preferably 60, especially preferably 50, and most preferably 40.
- a calcium type cleaning agent (A′) is preferably overbasic. In such a case, it possible to secure acid neutralization performance necessary for the lubricating oil. When an overbasic calcium-containing cleaning agent is used, a neutral calcium type cleaning agent may be used together.
- the total base number of a calcium type cleaning agent (A′) is preferably 20 to 500 mg KOH/g, more preferably 50 to 400 mg KOH/g, and most preferably 100 to 350 mg KOH/g. In such a case, it is possible to secure acid neutralization performance, high temperature cleaning performance, and antirust performance necessary for a lubricating oil. When two or more kinds of metal cleaning agents are used in mixture, it is preferable that the resultant base number of the mixture falls within the above range.
- the calcium content in a calcium type cleaning agent (A′) is preferably 0.5 to 20 weight %, more preferably 1 to 16 weight %, and most preferably 2 to 14 weight %.
- a lubricating oil composition according to the present invention may also comprise a sodium type cleaning agent as a metal type cleaning agent other than the above to the extent that the advantageous effect of the present invention is not impaired.
- a sodium type cleaning agent is a compound having sodium, and for example sodium sulfonate, sodium phenate, and sodium salicylate are preferable.
- the sodium type cleaning agents may be used singly, or in mixture of two or more kinds thereof. When a sodium type cleaning agent is included, high temperature cleaning performance and antirust performance required for a lubricating oil may be secured.
- a sodium type cleaning agent may be used in combination with the magnesium type cleaning agent and with an optional calcium type cleaning agent.
- the total amount of the metal type cleaning agents in a lubricating oil composition according to the present invention there is no particular restriction on the total amount of the metal type cleaning agents in a lubricating oil composition according to the present invention, insofar as the magnesium amount contained in the composition satisfies the above specified range.
- the addition amounts of a calcium type cleaning agent and a sodium type cleaning agent may be limited.
- a lubricating oil composition according to the present invention comprises a zinc dialkyl dithiophosphate (ZnDTP (also referred to as ZDDP)).
- ZnDTP zinc dialkyl dithiophosphate
- the zinc dialkyl dithiophosphate functions as an antiwear agent.
- the zinc dialkyl dithiophosphate necessarily includes (B-1) a zinc dialkyl dithiophosphate having a primary alkyl group. If a zinc dialkyl dithiophosphate having a primary alkyl group is not included, it is not possible to ensure adequate antiwear performance in a low viscosity lubricating oil composition.
- the content of (B-1) a zinc dialkyl dithiophosphate having a primary alkyl group in a lubricating oil composition according to the present invention is 30 weight % or more based on the total amount of component (B). It is preferably 40 weight % or more, more preferably 50 weight % or more, further preferably 60 weight % or more, especially preferably 80 weight % or more, and most preferably 100 weight %.
- a zinc dialkyl dithiophosphate is a compound represented by following formula (4).
- R 2 and R 3 represent a hydrogen atom, or a monovalent hydrocarbon group having 1 to 26 carbon atoms.
- the monovalent hydrocarbon group include a primary, or secondary alkyl group having 1 to 26 carbon atoms; an alkenyl group having 2 to 26 carbon atoms; a cycloalkyl group having 6 to 26 carbon atoms; an aryl group, alkylaryl group, or arylalkyl group having 6 to 26 carbon atoms; and a hydrocarbon group having an ester bond, an ether bond, an alcohol group, or a carboxyl group.
- the primary alkyl group means that in the substituents R 2 and R 3 , the carbon atom directly bonded to the oxygen atom in the zinc dialkyl dithiophosphate is a primary carbon atom.
- the secondary alkyl group means that in the substituents R 2 and R 3 , the carbon atom directly bonded to the oxygen atom in the zinc dialkyl dithiophosphate is a secondary carbon atom.
- R 2 and R 3 are independently a primary or secondary alkyl group having 3 to 12 carbon atoms, a cycloalkyl group having 8 to 18 carbon atoms, or an alkylaryl group having 8 to 18 carbon atoms.
- R 2 and R 3 is a primary or secondary alkyl group.
- the primary alkyl group preferably has 3 to 12 carbon atoms, and more preferably 4 to 10 carbon atoms. Examples thereof include a propyl group, a butyl group, a pentyl group, a hexyl group, an octyl group, a nonyl group, a decyl group, a dodecyl group, a 2-ethylhexyl group, and a 2,5-dimethylhexyl group.
- the secondary alkyl group preferably has 3 to 12 carbon atoms, and more preferably 3 to 10 carbon atoms. Examples thereof include an isopropyl group, a sec-butyl group, an isopentyl group, and an isohexyl group.
- a first embodiment comprising both (B-1) a zinc dialkyl dithiophosphate having a primary alkyl group and (B-2) a zinc dialkyl dithiophosphate having a secondary alkyl group; a second embodiment comprising (B-3) a zinc dialkyl dithiophosphate having both a primary alkyl group and a secondary alkyl group; and a third embodiment comprising (B-1) a zinc dialkyl dithiophosphate having a primary alkyl group, but not including neither (B-2) a zinc dialkyl dithiophosphate having a secondary alkyl group, nor (B-3) a zinc dialkyl dithiophosphate having both a primary alkyl group and a secondary alkyl group.
- the first embodiment and the third embodiment are preferable, and the first embodiment comprising (B-1) a zinc dialkyl dithiophosphate having a primary alkyl group, and (B-2) a zinc dialkyl dithiophosphate having a secondary alkyl group in combination is especially preferable.
- the two are preferably included to satisfy that the ratio (weight) of (B-1):(B-2) is preferably in a range of 99:1 to 30:70.
- the content of (B) a zinc dialkyl dithiophosphate in a lubricating oil composition in terms of the concentration [P] expressed by ppm by weight of phosphorus contained in the zinc dialkyl dithiophosphate based on the total weight of the lubricating oil composition is 300 to 1,000 ppm by mas, preferably 400 to 1,000 ppm by weight, more preferably 500 to 1,000 ppm by weight, and especially preferably 600 to 900 ppm by weight.
- the composition is optimized in order to reduce friction while ensuring the antiwear performance in a lubricating oil composition having a lower viscosity.
- the viscosity of a lubricating oil composition required according to the present invention will be described later.
- the relationship (combination) between the amount of boron contained in a lubricating oil composition and the content of (B-1) a zinc dialkyl dithiophosphate having a primary alkyl group is adjusted to improve the friction reducing effect. The effect can be maintained under the low viscosity condition described later.
- the combination may be adjusted to the extent that the amount of boron based on the total amount of the composition is less than 100 ppm by weight, preferably less than 80 ppm by weight, more preferably less than 50 ppm by weight, especially preferably less than 20 ppm by weight, and most preferably 0 ppm; and the content of (B-1) a zinc dialkyl dithiophosphate having a primary alkyl group based on the total amount of the component (B) is 30 weight % or more, preferably 40 weight % or more, more preferably 50 weight % or more, further preferably 60 weight % or more, especially preferably 80 weight % or more, and most preferably 100 weight %.
- the composition of a zinc dialkyl dithiophosphate namely the weight ratio of the component (B-1) to the component (B-2) satisfies 99:1 to 30:70, preferably 95:5 to 35:65, more preferably 90:10 to 40:60, especially preferably 85:15 to 45:55, and most preferably 80:20 to 50:50.
- the total amount of a zinc dialkyl dithiophosphate is acceptable insofar as the total weight (ppm) of phosphorus satisfies the above-mentioned range.
- a lubricating oil composition to be obtained under the above conditions is able to secure both friction preventing performance and antiwear performance even when the viscosity is further reduced compared to the conventional lubricating oil composition.
- a lubricating oil composition according to the present invention may further comprise an antiwear agent other than a zinc dialkyl dithiophosphate.
- an antiwear agent other than a zinc dialkyl dithiophosphate examples thereof include a compound represented by the above formula, wherein R 2 and R 3 are independently a hydrogen atom, or a monovalent hydrocarbon group, which is not an alkyl group, and has 1 to 26 carbon atoms.
- the monovalent hydrocarbon group include an alkenyl group having 2 to 26 carbon atoms; a cycloalkyl group having 6 to 26 carbon atoms; an aryl group, alkylaryl group, or arylalkyl group having 6 to 26 carbon atoms; and a hydrocarbon group having an ester bond, an ether bond, an alcohol group, or a carboxyl group.
- R 2 and R 3 which may be the same or different, are preferably a cycloalkyl group having 8 to 18 carbon atoms, or an alkylaryl group having 8 to 18 carbon atoms.
- ZnDTC zinc dithiocarbamate
- At least one compound selected from phosphorus compounds such as a phosphite, or a phosphate, represented by following formulas (5) and (6), and metal salts and amine salts thereof may be used in combination.
- R 6 is a monovalent hydrocarbon group having 1 to 30 carbon atoms
- R 4 and R 5 are independently a hydrogen atom, or a monovalent hydrocarbon group having 1 to 30 carbon atoms
- k is 0 or 1.
- R 9 is a monovalent hydrocarbon group having 1 to 30 carbon atoms
- R 7 and R 8 are independently a hydrogen atom, or a monovalent hydrocarbon group having 1 to 30 carbon atoms
- t is 0 or 1.
- Examples of the monovalent hydrocarbon group having 1 to 30 carbon atoms represented by R 4 to R 9 in formulas (5) and (6) include an alkyl group, a cycloalkyl group, an alkenyl group, an alkyl-substituted cycloalkyl group, an aryl group, an alkyl-substituted aryl group, and an arylalkyl group.
- an alkyl group having 1 to 30 carbon atoms, or an aryl group having 6 to 24 carbon atoms is preferable, an alkyl group having 3 to 18 carbon atoms is more preferable, and an alkyl group having 4 to 15 carbon atoms is most preferable.
- Examples of the phosphorus compound represented by formulas (5) and (6) include a phosphorous acid monoester having a hydrocarbon group having 1 to 30 carbon atoms, and hydrocarbyl phosphonous acid, a phosphonic acid monoester, and an acidic phosphoric acid monoester; a phosphorous acid diester, monothiophosphorous acid diester, phosphonic acid diester, acidic phosphoric acid diester, and hydrocarbyl phosphonous acid monoester, having two hydrocarbon groups having 1 to 30 carbon atoms; and a phosphorous acid trimester, and hydrocarbyl phosphonous acid diester, having three hydrocarbon groups having 1 to 30 carbon atoms; as well as mixtures thereof.
- a metal salt or amine salt of a phosphorus compound represented by Formula (5) or (6) can be obtained by making a metallic base, such as a metal oxide, a metal hydroxide, a metal carbonate, and a metal chloride, or a nitrogen compound, such as ammonia, an amine compound having in the molecule only a hydrocarbon group having 1 to 30 carbon atoms, or a hydroxyl group-containing hydrocarbon group, react with the phosphorus compound represented by formula (5) or (6) to neutralize part or all of remaining acidic hydrogens.
- a metallic base such as a metal oxide, a metal hydroxide, a metal carbonate, and a metal chloride
- a nitrogen compound such as ammonia
- the metal in the metallic base examples include alkali metals, such as lithium, sodium, potassium, and cesium; alkaline earth metals, such as calcium, magnesium, and barium; heavy metals, such as zinc, copper, iron, lead, nickel, silver, and manganese (provided that molybdenum is excluded).
- alkali metals such as lithium, sodium, potassium, and cesium
- alkaline earth metals such as calcium, magnesium, and barium
- heavy metals such as zinc, copper, iron, lead, nickel, silver, and manganese (provided that molybdenum is excluded).
- alkaline earth metals, such as calcium, and magnesium, and zinc are preferable, and zinc is especially preferable.
- the addition amount of a zinc dialkyl dithiophosphate it may be added as described above such that the phosphorus content derived from the zinc dialkyl dithiophosphate falls within the above specified range.
- the total amount of antiwear agents including the zinc dialkyl dithiophosphate to be added in a lubricating oil composition is ordinarily 0.1 to 5 weight %, and preferably 0.2 to 3 weight %.
- a lubricating oil composition according to the present invention preferably comprises a dispersant.
- the dispersant may be any of known dispersants conventionally added in a lubricating oil composition.
- a typical dispersant is an ashless dispersant.
- As an ashless dispersant either of a boron-containing dispersant, and a boron-free dispersant may be used, or both of them may be used in combination.
- a boron-free ashless dispersant is used singly.
- the addition amount of a dispersant based on the total amount of the composition is 0.1 to 8 weight %, preferably 0.5 to 5.5 weight %, especially preferably 1.0 to 5.0 weight %, and most preferably 2.5 to 4.0 weight %.
- Examples of a known ashless dispersant include a nitrogen-containing compound having at least one linear or branched alkyl group or alkenyl group having 40 to 500 carbon atoms, preferably 60 to 350 carbon atoms in the molecule, or a derivative thereof, a Mannich dispersant, a mono-type or bis-type derivative of succinimide (for example, a compound having a structure of alkenylsuccinimide), a benzylamine having at least one alkyl group or alkenyl group having 40 to 500 carbon atoms in the molecule, and a polyamine having at least one alkyl group or alkenyl group having 40 to 400 carbon atoms in the molecule, as well as modified products thereof with a boron compound, a carboxylic acid, phosphoric acid, or the like.
- a nitrogen-containing compound having at least one linear or branched alkyl group or alkenyl group having 40 to 500 carbon atoms, preferably 60 to 350 carbon atoms in the
- a boron-containing ashless dispersant is a compound obtained by modifying any of the above-mentioned compounds with a boron compound. Particularly a mono-type or bis-type derivative of a succinimide is preferable, and further a compound obtained by modifying (boronating) an alkenylsuccinimide compound with a boron compound, such as boric acid or a borate, is more preferable.
- a boron-containing ashless dispersant When a boron-containing ashless dispersant is used, it is blended in such an amount that the amount of boron to be contained in the composition satisfies the above-described range. When a boron-containing ashless dispersant and another boron-containing compound are used in combination, the total amount of boron contained in the composition is adjusted so as to satisfy the above-mentioned range.
- the content of a boron-containing ashless dispersant is 0 to 1.5 weight % based on the total amount of the composition, preferably 0.001 to 1.0 weight %, more preferably 0.01 to 0.75 weight %, and especially preferably 0.1 to 0.5 weight %, although it depends on the boron content in the boron-containing ashless dispersant.
- a boronated succinimide derivative is one produced by a known method and there is no particular restriction.
- a mono-type or bis-type succinimide derivative is obtained by reacting a compound having an alkyl group or an alkenyl group having 40 to 500 carbon atoms with maleic anhydride between 100 and 200° C. to produce an alkylsuccinic acid or alkenylsuccinic acid, and reacting the alkylsuccinic acid or alkenylsuccinic acid with a polyamine.
- examples of the polyamine include diethylene triamine, triethylene tetramine, tetraethylene pentamine, and pentaethylene hexamine.
- a mono-type succinimide derivative may be represented, for example, by following formula (a).
- a bis-type succinimide derivative may be represented, for example, by following formula (b).
- R 1 is independently an alkyl group or alkenyl group having 40 to 400 carbon atoms
- m is an integer of 1 to 20
- n is an integer of 0 to 20.
- a bis-type succinimide compound is particularly preferable.
- a succinimide derivative may be a combination of a mono-type and a bis-type, a combination of two or more kinds of monotypes, or a combination of two or more kinds of bis-types.
- a boron compound includes boric acid, boric anhydride, boric acid ester, boron oxide, boron halide, and the like.
- Boronated succinimide derivatives may be used singly or in combination of two or more kinds thereof.
- a derivative of a nitrogen-containing compound is known as another ashless dispersant.
- examples thereof include a compound modified with a so-called oxygen-containing organic compound, for which the above described nitrogen-containing compound (that is, a nitrogen-containing compound having at least one linear or branched alkyl group or alkenyl group having 40 to 500, preferably 60 to 350 carbon atoms in the molecule) is reacted with a monocarboxylic acid having 1 to 30 carbon atoms such as a fatty acid, or a polycarboxylic acid having 2 to 30 carbon atoms such as oxalic acid, phthalic acid, trimellitic acid, or pyromellitic acid, or an anhydride, or an ester compound thereof; an alkylene oxide having 2 to 6 carbon atoms, or hydroxy(poly)oxyalkylene carbonate, to neutralize or amidate part or all of remaining amino groups and/or imino groups; a so-called boron-modified compound, for which the above described nitrogen-
- a boron-containing ashless dispersant is contained, among the above described boron-containing ashless dispersants, specifically a boric acid-modified compound of the alkenylsuccinimide derivative, particularly a boric acid-modified compound of the bis-type alkenylsuccinimide derivative is preferable, because it can further improve the heat resistance by combination with the base oil described above.
- the number average molecular weight (Mn) of an ashless dispersant is preferably, but not restrictively, 2000 or more, more preferably 2500 or more, further preferably 3000 or more, and most preferably 5000 or more. Further, it is preferably 15,000 or less. When the number average molecular weight of an ashless dispersant is less than the lower limit value, the dispersibility may not be sufficient. On the other hand, when the number average molecular weight of an ashless dispersant exceeds the upper limit value, the viscosity becomes too high, and deposits are liable to increase due to insufficient fluidity.
- an alkali borate type additive may be added as another boron-containing compound.
- An alkali borate type additive contains an alkali metal borate hydrate, and may be expressed by the following general formula.
- M is an alkali metal
- x is 2.5 to 4.5
- y is 1.0 to 4.8.
- examples thereof include lithium borate hydrate, sodium borate hydrate, potassium borate hydrate, rubidium borate hydrate, and cesium borate hydrate, and potassium borate hydrate and sodium borate hydrate are preferable, and potassium borate hydrate is particularly preferable.
- the average particle size of particles of the alkali metal borate hydrate is generally 1 ⁇ m or less.
- the ratio of boron to an alkali metal in an alkali metal borate hydrate used according to the present invention is preferably in a range of about 2.5:1 to 4.5:1.
- the addition amount of the alkali borate type additive in terms of the boron amount together with the boron of the above boron-containing ashless dispersant based on the total amount of a lubricating oil composition is preferably not less than 0 ppm by weight but less than 100 ppm by weight.
- Examples of other boron-containing compounds include a potassium borate, such as potassium metaborate, potassium tetraborate, potassium pentaborate, potassium hexaborate, and potassium octaborate, calcium borate sulfonate, calcium borate salicylate, and tributyl borate.
- a potassium borate such as potassium metaborate, potassium tetraborate, potassium pentaborate, potassium hexaborate, and potassium octaborate
- calcium borate sulfonate calcium borate salicylate
- tributyl borate tributyl borate
- a lubricating oil composition according to the present invention may comprise, in addition to the above components, various conventionally known additives as optional components.
- various conventionally known additives for example, it may comprise a molybdenum type friction modifier, or a viscosity index improver.
- a friction modifier containing molybdenum (hereinafter referred to as “molybdenum type friction modifier”), and a conventionally known friction modifier may be used.
- a molybdenum type friction modifier is a compound containing molybdenum, and examples thereof include a sulfur-containing organic molybdenum compound, such as molybdenum dithiophosphate (MoDTP), and molybdenum dithiocarbamate (MoDTC), a complex of a molybdenum compound with a sulfur-containing organic compound or another organic compound, and a complex of a sulfur-containing molybdenum compound, such as molybdenum sulfide and sulfurized molybdic acid, with an alkenylsuccinimide.
- MoDTP molybdenum dithiophosphate
- MoDTC molybdenum dithiocarbamate
- the molybdenum compound examples include a molybdenum oxide, such as molybdenum dioxide and molybdenum trioxide; a molybdic acid, such as orthomolybdic acid, paramolybdic acid, and (poly)sulfurized molybdic acid; metal salts or ammonium salts of the molybdic acids; a sulfurized molybdenum, such as molybdenum sulfide, molybdenum disulfide, molybdenum trisulfide, molybdenum pentasulfide, and molybdenum polysulfide; sulfurized molybdic acid, and a metal salt or an amine salt of sulfurized molybdic acid; and a molybdenum halide, such as molybdenum chloride.
- a molybdenum oxide such as molybdenum dioxide and molybdenum trioxide
- a molybdic acid such as orthomolybdic acid
- sulfur-containing organic compound examples include alkyl (thio)xanthate, thiadiazole, mercaptothiadiazole, thiocarbonate, tetrahydrocarbyl thiuram disulfide, bis[di(thio)hydrocarbyl dithiophosphonate] disulfide, an organic (poly)sulfide, and a sulfurized ester.
- an organic molybdenum compound such as molybdenum dithiophosphate (MoDTP), and molybdenum dithiocarbamate (MoDTC), is preferable.
- Molybdenum dithiocarbamate (MoDTC) is a compound expressed by following formula [I]
- Molybdenum dithiophosphate (MoDTP) is a compound expressed by following formula [II]:
- R 1 to R 8 may be the same or different, and are monovalent hydrocarbon groups having 1 to 30 carbon atoms.
- the hydrocarbon group may be linear or branched.
- Examples of the monovalent hydrocarbon group include a linear or branched alkyl group having 1 to 30 carbon atoms; an alkenyl group having 2 to 30 carbon atoms; a cycloalkyl group having 4 to 30 carbon atoms; an aryl group, alkylaryl group, or arylalkyl group having 6 to 30 carbon atoms.
- the bonding position of the alkyl group is arbitrary.
- examples of the alkyl group include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, a decyl group, a undecyl group, a dodecyl group, a tridecyl group, a tetradecyl group, a pentadecyl group, a hexadecyl group, a heptadecyl group, and an octadecyl group, as well as branched alkyl groups thereof.
- an alkyl group having 3 to 8 carbon atoms is preferable.
- X 1 and X 2 are an oxygen atom or a sulfur atom
- Y 1 and Y 2 are an oxygen atom or a sulfur atom.
- a sulfur-free organic molybdenum compound may also be used.
- examples of such a compound include a molybdenum-amine complex, a molybdenum-succinimide complex, a molybdenum salt of an organic acid, and a molybdenum salt of an alcohol.
- a friction modifier according to the present invention a trinuclear molybdenum compound described in U.S. Pat. No. 5,906,968 may be used.
- a friction modifier is added in such an amount that the concentration of molybdenum [Mo] in terms of ppm by weight based on the total weight of a lubricating oil composition falls within a range of 200 to 1400 ppm by weight, preferably 300 to 1200 ppm by weight, more preferably 400 to 1000 ppm by weight, and most preferably 500 to 900 ppm by weight.
- the amount of a friction modifier exceeds the upper limit, the cleaning performance may be deteriorated, meanwhile when it is less than the lower limit, the friction may not be sufficiently reduced, or the cleaning performance may be deteriorated.
- a friction modifier is preferably contained in an amount satisfying following formula (2):
- [Mo] is the concentration of molybdenum in terms of ppm by weight based on the weight of a lubricating oil composition.
- the value of [Mg]/[Mo] is more preferably 2.0 or less, further preferably 1.8 or less, and still further preferably 1.5 or less.
- the lower limit of [Mg]/[Mo] is preferably 0.1, more preferably 0.2, and further preferably 0.3.
- Examples of a viscosity index improver include those containing polymethacrylate, dispersed polymethacrylate, an olefin copolymer (polyisobutylene, and an ethylene/propylene copolymer), a dispersed olefin copolymer, polyalkylstyrene, a hydrogenated styrene/butadiene copolymer, a styrene/maleic anhydride ester copolymer, or a star-shaped isoprene.
- a comb-shaped polymer containing, in the main chain, at least a repeating unit based on a polyolefin macromer and a repeating unit based on an alkyl (meth)acrylate having an alkyl group having 1 to 30 carbon atoms.
- a viscosity index improver usually comprises the above described polymer and a diluent oil.
- the content of a viscosity index improver in terms of the polymer amount contained in the viscosity index improver based on the total mass weight of the composition is preferably 1.0 weight % or less, more preferably 0.5 weight % or less, further preferably 0.2 weight % or less, and especially preferably 0.1 weight % or less.
- the content of a viscosity index improver is as small as possible, and most preferable that the viscosity index improver is not contained at all (0 weight % in terms of the polymer amount).
- a lubricating oil composition according to the present invention may further comprise another additive depending on the object.
- additives those commonly used for a lubricating oil composition may be used, and examples thereof include an antioxidant, a friction modifier other than the above, an anticorrosive agent, an antirust agent, a pour-point depressant, a demulsifying agent, a metal deactivator, and an antifoaming agent.
- an antioxidant examples include an ashless antioxidant, such as a phenol type and an amine type, and a metallic antioxidant, such as a copper type and a molybdenum type.
- a metallic antioxidant such as a copper type and a molybdenum type.
- the phenol type ashless antioxidant examples include 4,4′-methylene-bis(2,6-di-tert-butylphenol), 4,4′-bis(2,6-di-tert-butylphenol), and isooctyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate.
- an amine type ashless antioxidants examples include phenyl- ⁇ -naphthylamine, an alkylphenyl- ⁇ -naphthylamine, and a dialkyldiphenylamine.
- An antioxidant is usually blended in a lubricating oil composition at 0.1 to 5 weight %.
- Examples of a friction modifier other than the above include an ester, an amine, an amide, and a sulfurized ester.
- the friction modifier is usually blended in a lubricating oil composition at 0.01 to 3 weight %.
- anticorrosive agent examples include a benzotriazole type, a tolyltriazole type, a thiadiazole type, and an imidazole type compounds.
- antirust agent examples include petroleum sulfonate, an alkylbenzene sulfonate, dinonylnaphthalene sulfonate, an alkenylsuccinate, and a polyhydric alcohol ester.
- the anticorrosive agent and the antirust agent are usually blended in a lubricating oil composition each at 0.01 to 5 weight %.
- pour-point depressant for example, a polymethacrylate type polymer compatible with a used lubricating base oil may be used.
- the pour-point depressant is usually blended in a lubricating oil composition at 0.01 to 3 weight %.
- the demulsifying agent examples include a polyalkylene glycol nonionic surfactant, such as a polyoxyethylene alkyl ether, a polyoxyethylene alkylphenyl ether, and a polyoxyethylene alkylnaphthyl ether.
- the demulsifying agent is usually blended in a lubricating oil composition at 0.01 to 5 weight %.
- the metal deactivator examples include imidazoline, a pyrimidine derivative, an alkylthiadiazole, mercaptobenzothiazole, benzotriazole or a derivative thereof, 1,3,4-thiadiazole polysulfide, 1,3,4-thiadiazolyl-2,5-bis(dialkyldithiocarbamate), 2-(alkyldithio)benzimidazole, and ⁇ -(o-carboxybenzylthio)propionitrile.
- the metal deactivator is usually blended in a lubricating oil composition at 0.01 to 3 weight %.
- the antifoaming agent examples include a silicone oil having a kinematic viscosity at 25° C. of 1000 to 100,000 mm 2 /s, an alkenylsuccinic acid derivative, an esters between a polyhydroxy aliphatic alcohol and a long-chain fatty acid, and methyl salicylate and o-hydroxybenzyl alcohol.
- the antifoaming agent is usually blended in a lubricating oil composition at 0.001 to 1 weight %.
- the CCS viscosity at ⁇ 35° C. of a lubricating oil composition according to the present invention is preferably 6.2 Pa ⁇ s or less, more preferably 5.0 Pa ⁇ s or less, further preferably 4.0 Pa ⁇ s or less, especially preferably 3.0 Pa ⁇ s or less, and most preferably 2.6 Pa ⁇ s or less.
- the amount of molybdenum contained in the lubricating oil composition and the CCS viscosity at ⁇ 35° C. preferably satisfies following formula (7).
- CCS viscosity represents the value of CCS viscosity (Pa ⁇ s) at ⁇ 35° C. of a lubricating oil composition
- Mo represents the concentration in terms of ppm by weight of molybdenum based on the weight of the lubricating oil composition.
- the value of [CCS viscosity]/[Mo] is more preferably 0.008 or less, and further preferably 0.005 or less. When this value exceeds 0.01, the torque reduction rate may become small, or the cleaning performance is liable to be deteriorated.
- the lower limit value of [CCS viscosity]/[Mo] is not limited, it is preferably 0.002, and more preferably 0.003.
- HTHS viscosity high temperature high shear viscosity at 150° C. of a lubricating oil composition according to the present invention
- it is not less than 1.3 mPa ⁇ s but less than 2.3 mPa ⁇ s, preferably not less than 1.5 mPa ⁇ s but less than 2.0 mPa ⁇ s, and more preferably from 1.6 to 1.9 mPa ⁇ s.
- the kinematic viscosity at 100° C. of a lubricating oil composition according to the present invention is preferably less than 6.1 mm 2 /s, more preferably less than 5.8 mm 2 /s, and further preferably less than 5.4 mm 2 /s.
- the lower limit value is preferably 3.0 mm 2 /s, more preferably 3.5 mm 2 /s, further preferably 3.8 mm 2 /s, and most preferably 4.0 mm 2 /s.
- a lubricating oil composition which is reduced in viscosity as described above can still have sufficient friction characteristics.
- a lubricating oil composition according to the present invention can be suitably used for an internal combustion engine, and further for a supercharged gasoline engine.
- Magnesium sulfonate (total base number: 400 mg KOH/g, magnesium content: 9.4 weight %)
- Pri-ZnDTP (the compound represented by following formula (4), in which R 2 and R 3 are both primary alkyl group having 8 carbon atoms)
- Succinimide compound (the mixture represented by above formula (b), wherein R 1 is polybutenyl, n is 4 to 12, and the nitrogen content is 1 weight %).
- Molybdenum type friction modifier MoDTP (molybdenum content: 10 weight %)
- Antioxidant phenol type antioxidant
- Antifoaming agent dimethyl silicone
- a lubricating oil composition was prepared by mixing the respective components in the amounts set forth in Table 1 or 3.
- the parts by weight described in the table are parts by weight based on the total amount (100 parts by weight) of the lubricating oil composition.
- the amounts of the magnesium type cleaning agent, the calcium type cleaning agent, and the molybdenum type friction modifier described in the tables are the respective contents of magnesium, calcium, and molybdenum in terms of ppm by weight ([Mg], [Ca], and [Mo] in the order) based on the total amount of the lubricating oil composition.
- the amount of B described in the Table is the weight of boron in terms of ppm by weight based on the total amount of the lubricating oil composition.
- An antiwear agent (B) was blended in total 1 part by weight based on the total amount (100 parts by weight) of the lubricating oil composition.
- the weight ratio ((B-1)/(B-2)) of an antiwear agent (B-1) (zinc dialkyl dithiophosphate having a primary alkyl group) to an antiwear agent (B-2) (zinc dialkyl dithiophosphate having a secondary alkyl group) in the 1 part by weight was described in the Table.
- Example 7 the used amount of an antiwear agent was 0.5 parts by weight in total based on the total amount (100 parts by weight) of the lubricating oil composition, and the weight ratio ((B-1)/(B-2)) of an antiwear agent (B-1) (zinc dialkyl dithiophosphate having a primary alkyl group) to an antiwear agent (B-2) (zinc dialkyl dithiophosphate having a secondary alkyl group) in the 0.5 parts by weight was described in the Table.
- the amount of P described in the Table is the weight of phosphorus in terms of ppm by weight based on the total amount of the lubricating oil composition.
- the amounts of a magnesium type cleaning agent and a calcium type cleaning agent were regulated such that the total molar amount of magnesium and calcium contained in these cleaning agent became identical as possible in all of Examples and Comparative Examples.
- FIG. 3 illustrates a schematic diagram representing a mode of the measurement.
- a ball-on-disk friction test was carried out on each lubricating oil composition (reference numeral 4 in FIG. 3 ) using a standard test piece according to PCS Instruments (reference numeral 3 in FIG. 3 ) as a plate test piece (material: AISI 52100 steel), and a standard test piece according to PCS Instruments (reference numeral 2 in FIG. 3 ) as an opponent ball test piece (material: AISI 52100 steel) with a diameter of 0.75 inches.
- a ball-on-disk friction test was performed for 2 hours under a test load (reference numeral 1 in FIG. 3 ) of 37 N, a slip ratio of 50%, and an oil temperature of 60° C. (constant), and the friction coefficient after an elapse of 2 hours was defined as the friction coefficient in this test. Those having a friction coefficient of 0.038 or less were accepted.
- a lubricating oil composition was sent to flow at a rate of 0.3 mL/hour together with air at a rate of 10 mL/sec for 16 hours, while maintaining the temperature of the glass tube at 280° C.
- a lacquer having adhered to the glass tube was compared with the color samples and scored, wherein transparency scored 10, and black scored 0. The higher score means that the high temperature cleaning performance is higher. Those having a score of 5.5 or higher were accepted.
- a lubricating oil composition according to the present invention can reduce friction even at low viscosity less than 6.1 mm 2 /s in terms of kinematic viscosity at 100° C., and at the same time the high temperature cleaning performance can be high.
- the lubricating oil composition according to the present invention exerts an effect of reducing friction even when the viscosity is lowered, and its preferable embodiment is suitable for a lubricating oil composition for an internal combustion engine, and further for a lubricating oil composition for a supercharged gasoline engine.
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- Chemical & Material Sciences (AREA)
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Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017214713A JP7021908B2 (ja) | 2017-11-07 | 2017-11-07 | 潤滑油組成物 |
| JP2017-214713 | 2017-11-07 | ||
| PCT/IB2018/001228 WO2019092492A1 (ja) | 2017-11-07 | 2018-11-07 | 潤滑油組成物 |
Publications (1)
| Publication Number | Publication Date |
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| US20210189284A1 true US20210189284A1 (en) | 2021-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US16/761,962 Abandoned US20210189284A1 (en) | 2017-11-07 | 2018-11-07 | Lubricating oil composition |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20210189284A1 (enrdf_load_stackoverflow) |
| EP (1) | EP3708641A1 (enrdf_load_stackoverflow) |
| JP (1) | JP7021908B2 (enrdf_load_stackoverflow) |
| WO (1) | WO2019092492A1 (enrdf_load_stackoverflow) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220403284A1 (en) * | 2019-09-26 | 2022-12-22 | The Lubrizol Corporation | Lubricating compositions and methods of operating an internal combustion engine |
| US11680223B2 (en) * | 2020-12-07 | 2023-06-20 | Eneos Corporation | Lubricating oil composition |
| US11680222B2 (en) * | 2020-10-30 | 2023-06-20 | Afton Chemical Corporation | Engine oils with low temperature pumpability |
| EP4202023A1 (en) * | 2021-12-21 | 2023-06-28 | Afton Chemical Corporation | Mixed fleet capable lubricating compositions |
| EP3950905B1 (en) | 2019-03-29 | 2024-01-17 | Idemitsu Kosan Co.,Ltd. | Lubricating oil composition |
| US20250034473A1 (en) * | 2021-12-08 | 2025-01-30 | The Lubrizol Corporation | Open gear lubricant composition |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021075582A (ja) * | 2019-11-05 | 2021-05-20 | 株式会社Adeka | 潤滑油組成物 |
| JP2023004313A (ja) * | 2021-06-25 | 2023-01-17 | Ｅｎｅｏｓ株式会社 | 内燃機関用潤滑油組成物 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59122597A (ja) * | 1982-11-30 | 1984-07-16 | Honda Motor Co Ltd | 潤滑油組成物 |
| CA1337294C (en) * | 1987-11-20 | 1995-10-10 | Dale Robert Carroll | Lubricant compositions for enhanced fuel economy |
| JP5513703B2 (ja) * | 2005-05-27 | 2014-06-04 | 出光興産株式会社 | 潤滑油組成物 |
| JP5773365B2 (ja) | 2011-12-27 | 2015-09-02 | シェブロンジャパン株式会社 | 省燃費性の内燃機関用潤滑油組成物 |
| JP5823329B2 (ja) * | 2012-03-26 | 2015-11-25 | Ｊｘ日鉱日石エネルギー株式会社 | 内燃機関用潤滑油組成物 |
| JP6300686B2 (ja) | 2014-01-31 | 2018-03-28 | Ｅｍｇルブリカンツ合同会社 | 潤滑油組成物 |
| CN109913294B (zh) | 2015-03-31 | 2022-03-08 | 出光兴产株式会社 | 汽油发动机用润滑油组合物及其制造方法 |
| DE112016005592B9 (de) | 2015-12-07 | 2022-09-15 | Jxtg Nippon Oil & Energy Corporation | Schmierölzusammensetzung für verbrennungsmotor und verfahren zur unterdrückung von lspi eines verbrennungsmotors |
| JP6235549B2 (ja) * | 2015-12-07 | 2017-11-22 | Ｅｍｇルブリカンツ合同会社 | 潤滑油組成物 |
| JP6896384B2 (ja) * | 2016-08-02 | 2021-06-30 | Ｅｍｇルブリカンツ合同会社 | 潤滑油組成物 |
-
2017
- 2017-11-07 JP JP2017214713A patent/JP7021908B2/ja active Active
-
2018
- 2018-11-07 EP EP18840034.5A patent/EP3708641A1/en not_active Withdrawn
- 2018-11-07 US US16/761,962 patent/US20210189284A1/en not_active Abandoned
- 2018-11-07 WO PCT/IB2018/001228 patent/WO2019092492A1/ja unknown
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3950905B1 (en) | 2019-03-29 | 2024-01-17 | Idemitsu Kosan Co.,Ltd. | Lubricating oil composition |
| US20220403284A1 (en) * | 2019-09-26 | 2022-12-22 | The Lubrizol Corporation | Lubricating compositions and methods of operating an internal combustion engine |
| US11932825B2 (en) * | 2019-09-26 | 2024-03-19 | The Lubrizol Corporation | Lubricating compositions and methods of operating an internal combustion engine |
| US11680222B2 (en) * | 2020-10-30 | 2023-06-20 | Afton Chemical Corporation | Engine oils with low temperature pumpability |
| US11680223B2 (en) * | 2020-12-07 | 2023-06-20 | Eneos Corporation | Lubricating oil composition |
| US20250034473A1 (en) * | 2021-12-08 | 2025-01-30 | The Lubrizol Corporation | Open gear lubricant composition |
| EP4202023A1 (en) * | 2021-12-21 | 2023-06-28 | Afton Chemical Corporation | Mixed fleet capable lubricating compositions |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019092492A8 (ja) | 2019-08-08 |
| JP2019085491A (ja) | 2019-06-06 |
| EP3708641A1 (en) | 2020-09-16 |
| WO2019092492A1 (ja) | 2019-05-16 |
| JP7021908B2 (ja) | 2022-02-17 |
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