EP3178911A1 - Schmierölzusammensetzung - Google Patents
Schmierölzusammensetzung Download PDFInfo
- Publication number
- EP3178911A1 EP3178911A1 EP15830586.2A EP15830586A EP3178911A1 EP 3178911 A1 EP3178911 A1 EP 3178911A1 EP 15830586 A EP15830586 A EP 15830586A EP 3178911 A1 EP3178911 A1 EP 3178911A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lubricating oil
- antioxidant
- acid phosphate
- oil composition
- mass
- 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.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 57
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 24
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 39
- 239000010452 phosphate Substances 0.000 claims abstract description 39
- 239000002253 acid Substances 0.000 claims abstract description 38
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 37
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 27
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 27
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 23
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 19
- 239000002199 base oil Substances 0.000 claims abstract description 19
- 239000006096 absorbing agent Substances 0.000 claims description 16
- 230000035939 shock Effects 0.000 claims description 16
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 4
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- 239000011593 sulfur Substances 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 3
- 239000002530 phenolic antioxidant Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 18
- 229910052751 metal Inorganic materials 0.000 description 17
- 239000002184 metal Substances 0.000 description 17
- 230000003647 oxidation Effects 0.000 description 13
- 238000007254 oxidation reaction Methods 0.000 description 13
- 229920001971 elastomer Polymers 0.000 description 12
- 239000003795 chemical substances by application Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000002480 mineral oil Substances 0.000 description 7
- 235000010446 mineral oil Nutrition 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 5
- 235000014113 dietary fatty acids Nutrition 0.000 description 5
- 239000000194 fatty acid Substances 0.000 description 5
- 229930195729 fatty acid Natural products 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 239000003599 detergent Substances 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- -1 fatty acid ester Chemical class 0.000 description 4
- 150000004665 fatty acids Chemical class 0.000 description 4
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 3
- 101100208720 Homo sapiens USP5 gene Proteins 0.000 description 3
- 102100021017 Ubiquitin carboxyl-terminal hydrolase 5 Human genes 0.000 description 3
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 3
- 230000000994 depressogenic effect Effects 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 125000002463 lignoceryl 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])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 239000006078 metal deactivator Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003607 modifier Substances 0.000 description 3
- 125000002819 montanyl 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])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 3
- 230000007935 neutral effect Effects 0.000 description 3
- 229920000193 polymethacrylate Polymers 0.000 description 3
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 2
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 description 2
- RZRNAYUHWVFMIP-KTKRTIGZSA-N 1-oleoylglycerol Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(O)CO RZRNAYUHWVFMIP-KTKRTIGZSA-N 0.000 description 2
- BVUXDWXKPROUDO-UHFFFAOYSA-N 2,6-di-tert-butyl-4-ethylphenol Chemical compound CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 BVUXDWXKPROUDO-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 150000003939 benzylamines Chemical class 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- FRXGWNKDEMTFPL-UHFFFAOYSA-N dioctadecyl hydrogen phosphate Chemical compound CCCCCCCCCCCCCCCCCCOP(O)(=O)OCCCCCCCCCCCCCCCCCC FRXGWNKDEMTFPL-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 description 2
- 229960001860 salicylate Drugs 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical class O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 2
- 150000005846 sugar alcohols Polymers 0.000 description 2
- NSNIMHFJAMGNCZ-UHFFFAOYSA-N (3-hydroxy-2,2-dimethylpropyl) dodecanoate Chemical compound CCCCCCCCCCCC(=O)OCC(C)(C)CO NSNIMHFJAMGNCZ-UHFFFAOYSA-N 0.000 description 1
- XKZQKPRCPNGNFR-UHFFFAOYSA-N 2-(3-hydroxyphenyl)phenol Chemical class OC1=CC=CC(C=2C(=CC=CC=2)O)=C1 XKZQKPRCPNGNFR-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
- QRLSTWVLSWCGBT-UHFFFAOYSA-N 4-((4,6-bis(octylthio)-1,3,5-triazin-2-yl)amino)-2,6-di-tert-butylphenol Chemical compound CCCCCCCCSC1=NC(SCCCCCCCC)=NC(NC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=N1 QRLSTWVLSWCGBT-UHFFFAOYSA-N 0.000 description 1
- TVDZNGHKRSKPCD-UHFFFAOYSA-N 4-heptyl-n-(4-heptylphenyl)aniline Chemical compound C1=CC(CCCCCCC)=CC=C1NC1=CC=C(CCCCCCC)C=C1 TVDZNGHKRSKPCD-UHFFFAOYSA-N 0.000 description 1
- FCQAFXHLHBGGSK-UHFFFAOYSA-N 4-nonyl-n-(4-nonylphenyl)aniline Chemical compound C1=CC(CCCCCCCCC)=CC=C1NC1=CC=C(CCCCCCCCC)C=C1 FCQAFXHLHBGGSK-UHFFFAOYSA-N 0.000 description 1
- WAWOYULOCCVWNE-UHFFFAOYSA-N 5-tert-butyl-2-[(4-tert-butyl-5-ethyl-2-hydroxyphenyl)methyl]-4-ethylphenol Chemical compound C1=C(C(C)(C)C)C(CC)=CC(CC=2C(=CC(=C(CC)C=2)C(C)(C)C)O)=C1O WAWOYULOCCVWNE-UHFFFAOYSA-N 0.000 description 1
- DWLMIYNUGWGKQW-UHFFFAOYSA-N C(CCC)C=1C(=C(C(=C(C=1)NC1=CC=CC=C1)CCCC)CCCC)CCCC Chemical compound C(CCC)C=1C(=C(C(=C(C=1)NC1=CC=CC=C1)CCCC)CCCC)CCCC DWLMIYNUGWGKQW-UHFFFAOYSA-N 0.000 description 1
- WFHKDFKMMXNXBE-UHFFFAOYSA-N C(CCCCC)C=1C(=C(C(=C(C=1)NC1=CC=CC=C1)CCCCCC)CCCCCC)CCCCCC Chemical compound C(CCCCC)C=1C(=C(C(=C(C=1)NC1=CC=CC=C1)CCCCCC)CCCCCC)CCCCCC WFHKDFKMMXNXBE-UHFFFAOYSA-N 0.000 description 1
- YNLGQWRNZWQQMD-UHFFFAOYSA-N C(CCCCCCCC)C=1C(=C(C(=C(C=1)NC1=CC=CC=C1)CCCCCCCCC)CCCCCCCCC)CCCCCCCCC Chemical compound C(CCCCCCCC)C=1C(=C(C(=C(C=1)NC1=CC=CC=C1)CCCCCCCCC)CCCCCCCCC)CCCCCCCCC YNLGQWRNZWQQMD-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 description 1
- 239000003508 Dilauryl thiodipropionate Substances 0.000 description 1
- 239000002656 Distearyl thiodipropionate Substances 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
- QAPVYZRWKDXNDK-UHFFFAOYSA-N P,P-Dioctyldiphenylamine Chemical compound C1=CC(CCCCCCCC)=CC=C1NC1=CC=C(CCCCCCCC)C=C1 QAPVYZRWKDXNDK-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical class OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 1
- RYYWUUFWQRZTIU-UHFFFAOYSA-N Thiophosphoric acid Chemical compound OP(O)(S)=O RYYWUUFWQRZTIU-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 150000008052 alkyl sulfonates Chemical class 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 125000001204 arachidyl 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])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000002511 behenyl 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])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- GNVMUORYQLCPJZ-UHFFFAOYSA-N carbamothioic s-acid Chemical compound NC(S)=O GNVMUORYQLCPJZ-UHFFFAOYSA-N 0.000 description 1
- 125000003901 ceryl 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])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
- 230000008602 contraction Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 235000019304 dilauryl thiodipropionate Nutrition 0.000 description 1
- PWWSSIYVTQUJQQ-UHFFFAOYSA-N distearyl thiodipropionate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCCCCCCC PWWSSIYVTQUJQQ-UHFFFAOYSA-N 0.000 description 1
- 235000019305 distearyl thiodipropionate Nutrition 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 125000000755 henicosyl 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])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000002818 heptacosyl 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])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
- 150000004678 hydrides Chemical class 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([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
- 229910052745 lead Inorganic materials 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- KWKAKUADMBZCLK-UHFFFAOYSA-N methyl heptene Natural products CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 1
- RZRNAYUHWVFMIP-UHFFFAOYSA-N monoelaidin Natural products CCCCCCCCC=CCCCCCCCC(=O)OCC(O)CO RZRNAYUHWVFMIP-UHFFFAOYSA-N 0.000 description 1
- 125000001802 myricyl 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])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
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- XUMOVISJJBHALN-UHFFFAOYSA-N n-butyl-n-phenylnaphthalen-1-amine Chemical compound C=1C=CC2=CC=CC=C2C=1N(CCCC)C1=CC=CC=C1 XUMOVISJJBHALN-UHFFFAOYSA-N 0.000 description 1
- VCQJSMBSGMLFKI-UHFFFAOYSA-N n-heptyl-n-phenylnaphthalen-1-amine Chemical compound C=1C=CC2=CC=CC=C2C=1N(CCCCCCC)C1=CC=CC=C1 VCQJSMBSGMLFKI-UHFFFAOYSA-N 0.000 description 1
- MKEUPRYKXJEVEJ-UHFFFAOYSA-N n-hexyl-n-phenylnaphthalen-1-amine Chemical compound C=1C=CC2=CC=CC=C2C=1N(CCCCCC)C1=CC=CC=C1 MKEUPRYKXJEVEJ-UHFFFAOYSA-N 0.000 description 1
- LVZUNTGFCXNQAF-UHFFFAOYSA-N n-nonyl-n-phenylaniline Chemical compound C=1C=CC=CC=1N(CCCCCCCCC)C1=CC=CC=C1 LVZUNTGFCXNQAF-UHFFFAOYSA-N 0.000 description 1
- UMKFCWWZAONEEQ-UHFFFAOYSA-N n-nonyl-n-phenylnaphthalen-1-amine Chemical compound C=1C=CC2=CC=CC=C2C=1N(CCCCCCCCC)C1=CC=CC=C1 UMKFCWWZAONEEQ-UHFFFAOYSA-N 0.000 description 1
- RQVGZVZFVNMBGS-UHFFFAOYSA-N n-octyl-n-phenylaniline Chemical compound C=1C=CC=CC=1N(CCCCCCCC)C1=CC=CC=C1 RQVGZVZFVNMBGS-UHFFFAOYSA-N 0.000 description 1
- ZLNMGXQGGUZIJL-UHFFFAOYSA-N n-octyl-n-phenylnaphthalen-1-amine Chemical compound C=1C=CC2=CC=CC=C2C=1N(CCCCCCCC)C1=CC=CC=C1 ZLNMGXQGGUZIJL-UHFFFAOYSA-N 0.000 description 1
- NCEGDHPVRKYIJN-UHFFFAOYSA-N n-pentyl-n-phenylnaphthalen-1-amine Chemical compound C=1C=CC2=CC=CC=C2C=1N(CCCCC)C1=CC=CC=C1 NCEGDHPVRKYIJN-UHFFFAOYSA-N 0.000 description 1
- 150000005002 naphthylamines Chemical class 0.000 description 1
- 125000002465 nonacosyl 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])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
- 239000012188 paraffin wax Substances 0.000 description 1
- 125000002460 pentacosyl 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])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
- 239000003208 petroleum Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- CYQAYERJWZKYML-UHFFFAOYSA-N phosphorus pentasulfide Chemical compound S1P(S2)(=S)SP3(=S)SP1(=S)SP2(=S)S3 CYQAYERJWZKYML-UHFFFAOYSA-N 0.000 description 1
- 229920013639 polyalphaolefin Polymers 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229940051841 polyoxyethylene ether Drugs 0.000 description 1
- 229920000056 polyoxyethylene ether Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 150000003900 succinic acid esters Chemical class 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- VLLMWSRANPNYQX-UHFFFAOYSA-N thiadiazole Chemical compound C1=CSN=N1.C1=CSN=N1 VLLMWSRANPNYQX-UHFFFAOYSA-N 0.000 description 1
- 125000002469 tricosyl 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])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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
-
- 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
- C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
- C10M101/02—Petroleum fractions
-
- 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
- C10M129/04—Hydroxy compounds
- C10M129/10—Hydroxy compounds having hydroxy groups bound to a carbon atom of a six-membered aromatic ring
-
- 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
- C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M133/12—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to a carbon atom of a six-membered aromatic ring
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/003—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/102—Aliphatic fractions
- C10M2203/1025—Aliphatic fractions used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/36—Seal compatibility, e.g. with rubber
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
Definitions
- the present invention relates to a lubricating oil composition, for instance, to a lubricating oil composition to be used for a shock absorber in an automobile and industrial machinery/device.
- a shock absorber is provided at a connection portion between tires and a vehicle body in an automobile and is configured to damp vibration of the vehicle body caused by a bumpy road surface and acceleration/deceleration of the automobile. Accordingly, riding comfort on the automobile is considerably affected by a performance of the shock absorber.
- Friction of the shock absorber is mainly generated on an oil seal (a rubber material) and a rod (chrome-plated) portion. Accordingly, an improvement in friction characteristics generated between the rubber material and the chrome-plated portion is a very crucial problem. Moreover, in order that the rod of the shock absorber smoothly moves in extension and contraction, an absolute value (a friction coefficient between the rubber material and metal) of rubber friction is required to be small.
- the absolute values of the rubber friction as described in non-Patent Literatures 1 and 2 are not enough to sufficiently evaluate friction characteristics, so that development of the lubricating oil having excellent friction characteristics has not been easy. Moreover, it has been found that a large workload of the friction (i.e., friction energy) is also crucial for damping vibration of the vehicle body. Further, since the shock absorber is not supposed to be replaced, the shock absorber is generally used continuously for 5 to 10 years. Accordingly, the lubricating oil used for the shock absorber is required to also have a high oxidation stability.
- An object of the invention is to provide a lubricating oil composition having a small friction coefficient between a rubber material and metal, a large friction energy and an excellent oxidation stability.
- a lubricating oil composition according to an aspect of the invention is provided as follows:
- a lubricating oil composition having a small friction coefficient between a rubber material and metal, a large friction energy and an excellent oxidation stability can be provided.
- a lubricating oil composition in an exemplary embodiment of the invention (hereinafter also referred to as “the present composition") is provided by blending a predetermined acid phosphate and an antioxidant to a base oil.
- the present composition will be described in detail below.
- the base oil used in the present composition is not particularly limited. At least one of a mineral oil and a synthetic oil may be used alone or in combination of two or more. Alternatively, a combination of the mineral oil and the synthetic oil may be used.
- a base oil having a kinematic viscosity at 40 degrees C in a range approximately from 5 mm 2 /s to 40 mm 2 /s in order to keep suitable friction characteristics.
- a pour point of the base oil which is an index for low-temperature fluidity, is preferably -10 degrees C or less, particularly preferably -15 degrees C or less.
- Examples of the mineral oil include a naphthenic mineral oil, a paraffinic mineral oil, and GTL WAX.
- the examples of the mineral oil include a light neutral oil, intermediate neutral oil, heavy neutral oil and bright stock which are obtained by solvent purification or hydrogenation purification.
- examples of the synthetic oil include polybutene, a hydride thereof, poly-alpha-olefin (e.g., 1-octane oligomer, 1-decene oligomer), alkylbenzene, polyolester, diacid ester, polyoxyalkyleneglycol, polyoxyalkyleneglycolester, polyoxyalkyleneglycolether, hindered ester and silicone oil.
- polybutene e.g., 1-octane oligomer, 1-decene oligomer
- alkylbenzene e.g., 1-octane oligomer, 1-decene oligomer
- alkylbenzene e.g., 1-octane oligomer, 1-decene oligomer
- alkylbenzene e.g., 1-octane oligomer, 1-decene oligomer
- alkylbenzene
- Acid phosphate contained in the present composition is represented by formulae (I) and (2) below.
- R 1 , R 2 and R 3 are alkyl groups. At least one of R 1 and R 2 has 20 to 30 carbon atoms while R 3 has 20 to 30 carbon atoms.
- alkyl group having 20 to 30 carbon atoms examples include an eicosyl group, heneicosyl group, docosyl group, tricosyl group, tetracosyl group, pentacosyl group, hexacosyl group, heptacosyl group, octacosyl group, nonacosyl group and triacontyl group.
- Examples of the acid phosphate represented by the formulae (1) and (2) include tetracosyl acid phosphate, ditetracosyl acid phosphate, octacosyl acid phosphate, and dioctacosyl acid phosphate when R to R 3 are a tetracosyl group or an octacosyl group.
- R to R 3 are a tetracosyl group or an octacosyl group.
- ditetracosyl acid phosphate and an example of dioctacosyl acid phosphate are schematically shown in Figs 1 and 2 , respectively.
- the acid phosphate has an alkyl group having 20 or more carbon atoms, a friction coefficient and a friction energy are effectively improvable. Moreover, the oxidation stability is also improvable in the presence of the above-described acid phosphate.
- the number of the carbon atoms of the above-described alkyl group is preferably 30 or less since solubility of the acid phosphate in the base oil can be secured.
- the number of the carbon atoms of the above-described alkyl group is preferably in a range from 20 to 26, more preferably in a range from 20 to 24.
- the alkyl group of the formulae (1) and (2) may be linear, it is desirable that the alkyl group has a side chain in order to decrease the friction coefficient and increase the friction energy. Further, since the side chain serves as steric hindrance, the oxidation stability is also improvable. Specifically, at least one of R 1 and R 2 preferably has a side chain in the formula (1). Moreover, R 3 preferably has a side chain in the formula (2). Further, the number of the carbon atoms of the above-described side chain is preferably in a range from 6 to 18. The side chain having 6 or more carbon atoms is preferable in terms of a decrease in the friction coefficient and an increase in the friction energy. Moreover, the side chain having 18 or less carbon atoms is preferable since solubility of the acid phosphate in the base oil becomes favorable.
- the acid phosphate of the formula (1) is preferable to the acid phosphate of the formula (2) in terms of the decrease in the friction coefficient, the increase in the friction energy and the oxidation stability.
- a content of the above-described acid phosphate blended with the base oil is preferably in a range of 0.01 mass% to 3 mass% of the total amount of the composition, more preferably in a range of 0.1 mass% to 2 mass%, further preferably in a range of 0.2 mass% to 1 mass%.
- the content of the acid phosphate of 0.01 mass% or more is preferable not only in terms of the decrease in the friction coefficient and the increase in the friction energy but also the oxidation stability.
- the content of the acid phosphate of 3 mass% or less is preferable since solubility of the acid phosphate in the base oil can be secured.
- the present composition further contains an antioxidant.
- an antioxidant Although the predetermined acid phosphate described above has an effect for improving the oxidation stability, use of the antioxidant in combination with the acid phosphate exhibits an outstanding oxidation stability.
- At least one of an amine antioxidant, a phenolic antioxidant and a sulfur antioxidant is preferably usable.
- One of the antioxidant may be used alone or a combination of two or more thereof may be used.
- amine antioxidant examples include: monoalkyldiphenylamine compounds such as monooctyldiphenylamine and monononyldiphenylamine; dialkyldiphenylamine compounds such as 4,4'-dibutyldiphenylamine, 4,4'-dipentyldiphenylamine, 4,4'-dihexyldiphenylamine, 4,4'-diheptyldiphenylamine, 4,4'-dioctyldiphenylamine and 4,4'-dinonyldiphenylamine; polyalkyldiphenylamine compounds such as tetrabutyldiphenylamine, tetrahexyldiphenylamine, tetraoctyldipihenylamine and tetranonyldiphenylamine; and naphthylamine compounds such as ⁇ -naphthylamine, phenyl- ⁇ -naphthylamine, butyl
- phenolic antioxidant examples include: monophenol compounds such as 2,6-di-tert-butyl-4-methylphenol and 2,6-di-tert-butyl-4-ethylphenol; and diphenol compounds such as 4,4'-methylenebis(2,6-di-tert-butylphenol) and 2,2'-methylenebis(4-ethyl-5-tert-butylphenol).
- sulfur antioxidant examples include: thioterpene compounds such as 2,6-di-tert-butyl-4-(4,6-bis(octylthio)-1,3,5-triazine-2-yl amino)phenol and a reactant of phosphorus pentasulfide and pinene; and dialkylthio dipropionates such as dilauryl thiodipropionate and distearyl thiodipropionate.
- thioterpene compounds such as 2,6-di-tert-butyl-4-(4,6-bis(octylthio)-1,3,5-triazine-2-yl amino)phenol and a reactant of phosphorus pentasulfide and pinene
- dialkylthio dipropionates such as dilauryl thiodipropionate and distearyl thiodipropionate.
- a content of the antioxidant is approximately from 0.01 mass% to 10 mass% based on the total amount of the composition, preferably approximately from 0.03 mass% to 5 mass%.
- a "lubricating oil composition provided by blending a predetermined acid phosphate and an antioxidant to a base oil” encompasses not only a “lubricating oil composition containing a base oil, a predetermined acid phosphate and an antioxidant” but also a composition containing a modified substance of at least one of the "base oil,” “predetermined acid phosphate” and “antioxidant” in place of the at least one of the “base oil,” “predetermined acid phosphate” and “antioxidant” and a composition containing a reaction product obtained by reacting the "base oil,” “predetermined acid phosphate” and “antioxidant.”
- the present composition may be added as needed with other additives such as a viscosity index improver, a pour point depressant, an antiwear agent, a friction modifier, a metal detergent, an ashless dispersant, a rust inhibitor, a metal deactivator and an antifoaming agent as long as advantages of the invention are not hampered.
- the present composition containing the above additives encompasses a composition containing a modified substance of the additives and a composition containing a reaction product obtained by reacting the additives.
- viscosity index improver examples include polymethacrylate, dispersed polymethacrylate, olefin copolymer (e.g. ethylene-propylene copolymer), dispersed olefin copolymer and styrene copolymer (e.g. styrene-diene copolymer and styrene-isoprene copolymer).
- a content of the viscosity index improver is approximately in a range from 0.5 mass% to 15 mass% of the total amount of the present composition in view of the blending effect thereof.
- An example of the pour point depressant is polymethacrylate having a mass average molecular weight approximately in a range from 10000 to 150000.
- a preferable content of the pour point depressant is approximately in a range from 0.01 mass% to 10 mass% of the total amount of the present composition.
- the antiwear agent examples include: a sulfur antiwear agent such as a thiophosphoric acid metal salt (e.g., Zn, Pb and Sb) and a thiocarbamic acid metal salt (e.g., Zn); and a phosphorus antiwear agent such as a phosphate (tricresyl phosphate).
- a sulfur antiwear agent such as a thiophosphoric acid metal salt (e.g., Zn, Pb and Sb) and a thiocarbamic acid metal salt (e.g., Zn)
- a phosphorus antiwear agent such as a phosphate (tricresyl phosphate).
- a preferable content of the antiwear agent is approximately in a range from 0.05 mass% to 5 mass% of the total amount of the present composition.
- the friction modifier examples include a polyhydric alcohol partial ester such as neopentyl glycol monolaurate, trimethyrol propanemonolaurate, and glycerin monooleate (oleic acid monoglyceride).
- a preferable content of the friction modifier is approximately in a range from 0.05 mass% to 4 mass% of the total amount of the present composition.
- the metal detergent is preferably at least one of metal salicylate, metal phenate and metal sulfonate.
- the metal is preferably alkaline earth metal, more preferably Ca.
- Ca salicylate is particularly preferable in order to retain the detergency.
- a base value of the metal detergent according to a hydrochloric acid method is preferably in a range from 100 mgKOH/g to 250 mgKOH/g in order to retain the detergency.
- a content of the metal detergent is preferably in a range from 60 mass ppm to 6000 mass ppm based on the total amount of the composition and in terms of the metal amount.
- ashless dispersant examples include succinimides, boron-containing succinimides, benzylamines, boron-containing benzylamines, succinic acid esters, and mono- or di-carboxylic acid amides respectively represented by a fatty acid or succinic acid.
- a preferable content of the ashless dispersant is approximately in a range from 0.1 mass% to 20 mass% of the total amount of the present composition.
- the rust inhibitor examples include a fatty acid, alkenylsuccinic acid half ester, fatty acid soap, alkyl sulfonate, fatty acid ester of polyhydric alcohol, fatty acid amide, oxidized paraffin and alkyl polyoxyethylene ether.
- a preferable content of the rust inhibitor is approximately in a range from 0.01 mass% to 3 mass% of the total amount of the present composition.
- One of the metal deactivators such as benzotriazole and thiadiazole may be used alone, or a combination of two or more thereof may be used.
- a preferable content of the metal deactivator is approximately in a range from 0.01 mass% to 5 mass% of the total amount of the present composition.
- One of the antifoaming agents such as a silicone compound and an ester compound may be used alone, or a combination of two or more thereof may be used.
- a preferable content of the antiwear agent is approximately in a range from 0.05 mass% to 5 mass% of the total amount of the present composition.
- the present composition contains the acid phosphate having a predetermined structure and the antioxidant, the friction coefficient between the rubber material and the metal is small, the friction energy is large, and the oxidation stability is excellent. Accordingly, the present composition is suitably usable for the shock absorber, particularly suitably usable for the shock absorber of a four-wheel automobile (e.g., a passenger car, bus and truck) in which riding comfort is of great interest.
- a four-wheel automobile e.g., a passenger car, bus and truck
- the present composition is also suitably usable for a shock absorber of a two-wheel vehicle. Further, the present composition is suitably usable as hydraulic fluid. Examples
- a kinematic viscosity at 40 degrees C of the present composition was measured in accordance with JIS K 2283.
- the friction coefficient (kinematic friction coefficient) between the rubber and the metal and the friction energy were obtained using a tester shown in Fig. 4 .
- a tester shown in Fig. 4 .
- rubber and a Cr (chrome)-plated steel plate were reciprocatingly slid while being in pressure contact with each other at a predetermined load through a sample oil, and a Lissajous waveform was recorded.
- Fig. 5 shows an example of the Lissajous waveform.
- a friction coefficient ( ⁇ ) was obtained from the maximum value of a friction force.
- An area (which is a product of an amplitude and the friction force and corresponds to workload) of the Lissajous waveform was obtained as the friction energy.
- Lubricating oil compositions were prepared according to blending compositions shown in Tables 1 and 2. Properties and performance of each of the sample oils were evaluated in accordance with the above-described methods. The results are also shown in Tables 1 and 2.
- the sample oils of Comparatives in which various agents such as an oiliness agent and a phosphorus extreme pressure agent are blended, cannot simultaneously satisfy all of the friction coefficient, the friction energy and the oxidation stability.
- the sample oils in Comparatives 2, 3, 5 and 10 exhibit poor oxidation stability in spite of containing the same amount of the same antioxidant as in Examples 1 and 2.
- the sample oil contains acid phosphate diester having an alkyl group with a relatively large number of carbon atoms.
- the friction coefficient is large and an increase in the friction energy is hardly recognized as compared with the sample oil with only the base oil (i.e., Comparative 1 only containing the antioxidant).
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Lubricants (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014160395A JP6422260B2 (ja) | 2014-08-06 | 2014-08-06 | 潤滑油組成物 |
| PCT/JP2015/064722 WO2016021274A1 (ja) | 2014-08-06 | 2015-05-22 | 潤滑油組成物 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP3178911A1 true EP3178911A1 (de) | 2017-06-14 |
| EP3178911A4 EP3178911A4 (de) | 2018-02-21 |
| EP3178911B1 EP3178911B1 (de) | 2019-10-30 |
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| EP15830586.2A Active EP3178911B1 (de) | 2014-08-06 | 2015-05-22 | Schmierölzusammensetzung |
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| Country | Link |
|---|---|
| US (1) | US20170247630A1 (de) |
| EP (1) | EP3178911B1 (de) |
| JP (1) | JP6422260B2 (de) |
| KR (1) | KR20170032302A (de) |
| CN (1) | CN106536695B (de) |
| ES (1) | ES2763299T3 (de) |
| WO (1) | WO2016021274A1 (de) |
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| JP7156903B2 (ja) * | 2018-10-26 | 2022-10-19 | Ｋｙｂ株式会社 | 潤滑油の評価方法 |
| JP7412202B2 (ja) * | 2020-02-07 | 2024-01-12 | Ｎｏｋクリューバー株式会社 | 潤滑グリース組成物 |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5289765A (en) * | 1976-01-22 | 1977-07-27 | Toshiba Corp | Lubricating compound |
| SU958425A1 (ru) * | 1981-01-05 | 1982-09-15 | Казанский Химико-Технологический Институт Им.С.М.Кирова | Циклические амидофосфиты в качестве антиокислительной присадки к сложным эфирам карбоновых кислот |
| JPS5845293A (ja) * | 1981-09-10 | 1983-03-16 | Idemitsu Kosan Co Ltd | 緩衝器用流体組成物 |
| JPH0684501B2 (ja) * | 1985-10-02 | 1994-10-26 | 株式会社日立製作所 | フロン圧縮機用潤滑油 |
| US5382374A (en) * | 1990-03-31 | 1995-01-17 | Tonen Corporation | Hydraulic fluids for automobile suspensions |
| EP0465156B1 (de) * | 1990-06-29 | 1996-09-04 | Tonen Corporation | Hydraulik-, Schmier- und Kupplungsmittelzusammensetzung, die einen Organopolysiloxan und einen Phosphor enthaltenden Additiv enthält. |
| US5561104A (en) * | 1992-10-15 | 1996-10-01 | Nippon Oil Co., Ltd. | Hydraulic working oil composition for buffers |
| JP2962950B2 (ja) * | 1992-10-15 | 1999-10-12 | 日石三菱株式会社 | 緩衝器用油圧作動油組成物 |
| JPH0797586A (ja) * | 1993-09-28 | 1995-04-11 | Nisshin Fine Chem Kk | パーフルオロアルキル基含有リン酸エステルを含む潤滑剤 |
| JPH07224293A (ja) * | 1994-02-14 | 1995-08-22 | Nippon Oil Co Ltd | 緩衝器用油圧作動油組成物 |
| JP3896193B2 (ja) * | 1997-07-17 | 2007-03-22 | 昭和シェル石油株式会社 | 潤滑油用組成物 |
| ATE220712T1 (de) * | 1998-08-20 | 2002-08-15 | Shell Int Research | Schmierölzusammensetzungen als hydraulische flüssigkeiten |
| JP4044224B2 (ja) * | 1998-10-09 | 2008-02-06 | 出光興産株式会社 | 潤滑油用添加剤 |
| JP4140937B2 (ja) * | 1999-06-22 | 2008-08-27 | 大同化学工業株式会社 | 熱間圧延ロール用固形状潤滑剤及び該固形状潤滑剤を使用する熱間圧延方法 |
| WO2005035702A1 (ja) * | 2003-10-10 | 2005-04-21 | Idemitsu Kosan Co., Ltd. | 潤滑油 |
| JP2005343976A (ja) * | 2004-06-01 | 2005-12-15 | Showa Shell Sekiyu Kk | 潤滑油組成物 |
| CN101010420B (zh) * | 2004-08-24 | 2013-08-28 | 出光兴产株式会社 | 二氧化碳制冷剂用冷冻机油组合物 |
| US20070164259A1 (en) * | 2006-01-17 | 2007-07-19 | Sullivan William T | Additive system for lubricating fluids |
| US7410935B2 (en) * | 2006-03-22 | 2008-08-12 | Afton Chemical Corporation | Gear fluids |
| US20100075877A1 (en) * | 2006-09-28 | 2010-03-25 | Idemitsu Kosan Co., Ltd | Lubricating oil composition for buffers |
| JP2009235268A (ja) * | 2008-03-27 | 2009-10-15 | Nippon Oil Corp | 潤滑油組成物 |
| FR2946983B1 (fr) * | 2009-06-23 | 2011-12-23 | Nyco | Agents anti-usure a neurotoxicite reduite |
| JP5489615B2 (ja) * | 2009-09-28 | 2014-05-14 | Ｊｘ日鉱日石エネルギー株式会社 | 潤滑油組成物 |
| JP5883667B2 (ja) * | 2012-01-31 | 2016-03-15 | 出光興産株式会社 | 緩衝器油組成物 |
-
2014
- 2014-08-06 JP JP2014160395A patent/JP6422260B2/ja active Active
-
2015
- 2015-05-22 EP EP15830586.2A patent/EP3178911B1/de active Active
- 2015-05-22 ES ES15830586T patent/ES2763299T3/es active Active
- 2015-05-22 CN CN201580040099.0A patent/CN106536695B/zh active Active
- 2015-05-22 KR KR1020177001081A patent/KR20170032302A/ko unknown
- 2015-05-22 WO PCT/JP2015/064722 patent/WO2016021274A1/ja active Application Filing
- 2015-05-22 US US15/329,484 patent/US20170247630A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US20170247630A1 (en) | 2017-08-31 |
| CN106536695B (zh) | 2020-12-29 |
| KR20170032302A (ko) | 2017-03-22 |
| ES2763299T3 (es) | 2020-05-28 |
| JP2016037528A (ja) | 2016-03-22 |
| EP3178911A4 (de) | 2018-02-21 |
| CN106536695A (zh) | 2017-03-22 |
| JP6422260B2 (ja) | 2018-11-14 |
| WO2016021274A1 (ja) | 2016-02-11 |
| EP3178911B1 (de) | 2019-10-30 |
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