JP5489615B2 - Lubricating oil composition - Google Patents
Lubricating oil composition Download PDFInfo
- Publication number
- JP5489615B2 JP5489615B2 JP2009222028A JP2009222028A JP5489615B2 JP 5489615 B2 JP5489615 B2 JP 5489615B2 JP 2009222028 A JP2009222028 A JP 2009222028A JP 2009222028 A JP2009222028 A JP 2009222028A JP 5489615 B2 JP5489615 B2 JP 5489615B2
- Authority
- JP
- Japan
- Prior art keywords
- lubricating oil
- oil composition
- acid phosphate
- component
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000203 mixture Substances 0.000 title claims description 64
- 239000010687 lubricating oil Substances 0.000 title claims description 41
- 229910019142 PO4 Inorganic materials 0.000 claims description 42
- 239000010452 phosphate Substances 0.000 claims description 41
- -1 phosphate ester Chemical class 0.000 claims description 37
- 239000002253 acid Substances 0.000 claims description 31
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 26
- 230000002378 acidificating effect Effects 0.000 claims description 17
- 125000000217 alkyl group Chemical group 0.000 claims description 12
- 239000002199 base oil Substances 0.000 claims description 10
- 125000004432 carbon atom Chemical group C* 0.000 claims description 9
- 125000001931 aliphatic group Chemical group 0.000 claims description 8
- 230000001050 lubricating effect Effects 0.000 claims description 7
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 claims description 7
- 125000003342 alkenyl group Chemical group 0.000 claims description 6
- 239000007795 chemical reaction product Substances 0.000 claims description 4
- 235000021317 phosphate Nutrition 0.000 description 35
- 239000003921 oil Substances 0.000 description 14
- 235000019198 oils Nutrition 0.000 description 14
- 239000000654 additive Substances 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 7
- 229910052698 phosphorus Inorganic materials 0.000 description 7
- 239000011574 phosphorus Substances 0.000 description 7
- 150000003014 phosphoric acid esters Chemical class 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000002480 mineral oil Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000003925 fat Substances 0.000 description 4
- 235000019197 fats Nutrition 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 235000010446 mineral oil Nutrition 0.000 description 3
- 150000003141 primary amines Chemical class 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 229920001083 polybutene Polymers 0.000 description 2
- 229920000193 polymethacrylate Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 150000003335 secondary amines Chemical class 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 description 1
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 description 1
- QMMJWQMCMRUYTG-UHFFFAOYSA-N 1,2,4,5-tetrachloro-3-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=C(Cl)C(Cl)=CC(Cl)=C1Cl QMMJWQMCMRUYTG-UHFFFAOYSA-N 0.000 description 1
- BMVXCPBXGZKUPN-UHFFFAOYSA-N 1-hexanamine Chemical compound CCCCCCN BMVXCPBXGZKUPN-UHFFFAOYSA-N 0.000 description 1
- VETPHHXZEJAYOB-UHFFFAOYSA-N 1-n,4-n-dinaphthalen-2-ylbenzene-1,4-diamine Chemical compound C1=CC=CC2=CC(NC=3C=CC(NC=4C=C5C=CC=CC5=CC=4)=CC=3)=CC=C21 VETPHHXZEJAYOB-UHFFFAOYSA-N 0.000 description 1
- YOFPVMWVLDSWKR-UHFFFAOYSA-N 11-methyl-n-(11-methyldodecyl)dodecan-1-amine Chemical compound CC(C)CCCCCCCCCCNCCCCCCCCCCC(C)C YOFPVMWVLDSWKR-UHFFFAOYSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- LLEFDCACDRGBKD-UHFFFAOYSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol;nonanoic acid Chemical compound CCC(CO)(CO)CO.CCCCCCCCC(O)=O LLEFDCACDRGBKD-UHFFFAOYSA-N 0.000 description 1
- CWTQBXKJKDAOSQ-UHFFFAOYSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol;octanoic acid Chemical compound CCC(CO)(CO)CO.CCCCCCCC(O)=O CWTQBXKJKDAOSQ-UHFFFAOYSA-N 0.000 description 1
- IKEHOXWJQXIQAG-UHFFFAOYSA-N 2-tert-butyl-4-methylphenol Chemical compound CC1=CC=C(O)C(C(C)(C)C)=C1 IKEHOXWJQXIQAG-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- ALKCLFLTXBBMMP-UHFFFAOYSA-N 3,7-dimethylocta-1,6-dien-3-yl hexanoate Chemical compound CCCCCC(=O)OC(C)(C=C)CCC=C(C)C ALKCLFLTXBBMMP-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- SAIKULLUBZKPDA-UHFFFAOYSA-N Bis(2-ethylhexyl) amine Chemical compound CCCCC(CC)CNCC(CC)CCCC SAIKULLUBZKPDA-UHFFFAOYSA-N 0.000 description 1
- DJBVDAUKGXUPLO-QEMDMZNVSA-N C(C)C(C(=O)O)CCCC.C([C@H](O)[C@H](O)CO)O.C([C@H](O)[C@H](O)CO)O.C([C@H](O)[C@H](O)CO)O.C([C@H](O)[C@H](O)CO)O.C([C@H](O)[C@H](O)CO)O Chemical compound C(C)C(C(=O)O)CCCC.C([C@H](O)[C@H](O)CO)O.C([C@H](O)[C@H](O)CO)O.C([C@H](O)[C@H](O)CO)O.C([C@H](O)[C@H](O)CO)O.C([C@H](O)[C@H](O)CO)O DJBVDAUKGXUPLO-QEMDMZNVSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-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
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 235000019482 Palm oil Nutrition 0.000 description 1
- 235000019484 Rapeseed oil Nutrition 0.000 description 1
- 235000019774 Rice Bran oil Nutrition 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-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
- URGQBRTWLCYCMR-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] nonanoate Chemical compound CCCCCCCCC(=O)OCC(CO)(CO)CO URGQBRTWLCYCMR-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- ARCGXLSVLAOJQL-UHFFFAOYSA-N anhydrous trimellitic acid Natural products OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 ARCGXLSVLAOJQL-UHFFFAOYSA-N 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 235000015278 beef Nutrition 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
- BNMJSBUIDQYHIN-UHFFFAOYSA-N butyl dihydrogen phosphate Chemical compound CCCCOP(O)(O)=O BNMJSBUIDQYHIN-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000004517 catalytic hydrocracking Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000003240 coconut oil Substances 0.000 description 1
- 235000019864 coconut oil Nutrition 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- UCQFCFPECQILOL-UHFFFAOYSA-N diethyl hydrogen phosphate Chemical compound CCOP(O)(=O)OCC UCQFCFPECQILOL-UHFFFAOYSA-N 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000004821 distillation Methods 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
- 125000005066 dodecenyl group Chemical group C(=CCCCCCCCCCC)* 0.000 description 1
- 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 1
- JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical compound CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011521 glass Substances 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
- 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 1
- 150000004678 hydrides Chemical class 0.000 description 1
- BUHXFUSLEBPCEB-UHFFFAOYSA-N icosan-1-amine Chemical compound CCCCCCCCCCCCCCCCCCCCN BUHXFUSLEBPCEB-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 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
- 239000006078 metal deactivator Substances 0.000 description 1
- 239000007769 metal material Substances 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
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 125000003136 n-heptyl 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])* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000005064 octadecenyl group Chemical group C(=CCCCCCCCCCCCCCCCC)* 0.000 description 1
- BBZAGOMQOSEWBH-UHFFFAOYSA-N octyl dodecanoate Chemical compound CCCCCCCCCCCC(=O)OCCCCCCCC BBZAGOMQOSEWBH-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 239000003346 palm kernel oil Substances 0.000 description 1
- 235000019865 palm kernel oil Nutrition 0.000 description 1
- 239000002540 palm oil Substances 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
- 125000002958 pentadecyl 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])[H] 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 239000010702 perfluoropolyether Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 150000008301 phosphite esters Chemical class 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920013639 polyalphaolefin Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920013636 polyphenyl ether polymer Polymers 0.000 description 1
- 150000007519 polyprotic acids Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000008165 rice bran oil Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000001593 sorbitan monooleate Substances 0.000 description 1
- 229940035049 sorbitan monooleate Drugs 0.000 description 1
- 235000011069 sorbitan monooleate Nutrition 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 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
- 239000001384 succinic acid Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 125000005063 tetradecenyl group Chemical group C(=CCCCCCCCCCCCC)* 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- 125000005040 tridecenyl group Chemical group C(=CCCCCCCCCCCC)* 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
- 238000005292 vacuum distillation Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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
- C10M137/08—Ammonium or amine salts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
- C10M141/10—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 phosphorus-containing compound
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
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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
- 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
- C10M2223/043—Ammonium or amine salts thereof
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—Pour-point; Viscosity index
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- 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
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- 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
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
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- 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
- C10N2040/02—Bearings
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Description
本発明は潤滑油組成物に関し、特に工作機械用として、好適には工作機械のすべり案内面に用いられる潤滑油組成物に関する。 The present invention relates to a lubricating oil composition, and more particularly to a lubricating oil composition used for a machine tool, preferably for a sliding guide surface of a machine tool.
工作機械の加工テーブルなどのすべり案内面用の潤滑油には、加工精度を向上させるために低摩擦性能やスティックスリップの防止、貯蔵安定性、耐腐食性等が要求されている。また、工作機械が設置される場所においては火災に対する安全性の観点から潤滑油は難燃性であることが好ましく、管理する上から消防法の第四石油類の規制対象とならない引火点２５０℃以上の潤滑油が好ましい。
摩擦低減剤として、これまでさまざまな極圧剤や油性剤が用いられてきた。昨今の工作機械においては特に工作精度に対する要求が高まっており、工作精度に重要な影響を与える低速領域における摩擦低減を実現するために、リン酸エステル、酸性リン酸エステル、亜リン酸エステル、カルボン酸、イオウ化合物、アミン類等が用いられている（例えば、特許文献１を参照）。また、酸性リン酸エステルをアルキルアミンで中和することにより安定性を向上させることが試みられていた（例えば、特許文献２を参照）。
また、油性剤の１つとして、モノアミン、ポリアミンおよびアルカノールアミンなどのアミン類を配合してもよいことが多くの特許文献（例えば、特許文献２）に記載され、モノアミンやポリアミンについてはそれらアミン単体の配合が記載され、アルカノールアミンについては酸性リン酸エステルとのアミン塩やカルボン酸とのアミドなど、塩を形成する化合物として用いる方法が記載されている（例えば、特許文献３）。
このように様々な潤滑性向上剤が検討され、摩擦性能や耐ステイン性など長期に亘っての性能の向上や維持がなされてきたが、すべり案内面油では位置決め精度など、さらなる改良が求められている。また、火災に対する安全性に関しては未だ十分とは言えず、引火点が２５０℃未満の製品が多く見受けられる。
Lubricating oils for sliding guide surfaces such as processing tables of machine tools are required to have low friction performance, prevention of stick-slip, storage stability, corrosion resistance, and the like in order to improve processing accuracy. In addition, in a place where machine tools are installed, the lubricating oil is preferably flame retardant from the viewpoint of fire safety, and a flash point of 250 ° C. which is not subject to the regulation of the fourth oil of the Fire Service Law from the viewpoint of management. The above lubricating oil is preferred.
Various extreme pressure agents and oil-based agents have been used as friction reducing agents. In recent machine tools, there is an increasing demand for machine accuracy, and in order to reduce friction in low-speed areas that have an important influence on machine accuracy, phosphate esters, acid phosphate esters, phosphite esters, carvone esters Acids, sulfur compounds, amines and the like are used (see, for example, Patent Document 1). In addition, attempts have been made to improve stability by neutralizing acidic phosphate esters with alkylamines (see, for example, Patent Document 2).
In addition, as one of the oily agents, it is described in many patent documents (for example, Patent Document 2) that amines such as monoamine, polyamine and alkanolamine may be blended. As for alkanolamine, a method of using it as a compound forming a salt such as an amine salt with an acidic phosphate ester or an amide with a carboxylic acid is described (for example, Patent Document 3).
In this way, various lubricity improvers have been studied, and long-term performance improvements such as friction performance and stain resistance have been improved and maintained, but sliding guide surface oil requires further improvements such as positioning accuracy. ing. Moreover, it cannot be said that the safety against fire is still sufficient, and many products with a flash point of less than 250 ° C. can be seen.
しかしながら、これらの従来技術の潤滑油組成物におけるりん酸エステル化合物やアミン化合物などの添加剤は初期の摩擦性能や工作機械の位置決め性能は向上してきたものの、リン酸などの酸性成分が鉄を使用する摺動面に腐食を発生させるなど、工作機械における加工精度を悪化させる原因となり、装置の使用が進むにつれて位置決め精度が悪化する傾向にあった。 However, although additives such as phosphate ester compounds and amine compounds in these prior art lubricating oil compositions have improved initial frictional performance and positioning performance of machine tools, acidic components such as phosphoric acid use iron. This causes deterioration of the machining accuracy in the machine tool, such as the occurrence of corrosion on the sliding surface, and the positioning accuracy tends to deteriorate as the use of the apparatus proceeds.
これまで酸性リン酸エステルをアミンで中和することにより耐腐食性の向上や貯蔵安定性の向上が試みられてきたが、従来の添加剤の配合量及び組み合わせにおいては長期にわたって腐食性や位置決め性能を維持し続けることは困難であった。そのため長期間に亘って優れた摩擦性能を有し、位置決め性能を維持し続け、腐食の発生を抑えることの出来る油剤が必要とされている。一方、管理上の問題から、消防法の第四石油類の規制対象とならない引火点が２５０℃以上の潤滑油組成物が望まれている。 Up to now, attempts have been made to improve corrosion resistance and storage stability by neutralizing acidic phosphate esters with amines. It was difficult to keep up. Therefore, there is a need for an oil that has excellent friction performance over a long period of time, maintains positioning performance, and can suppress the occurrence of corrosion. On the other hand, due to management problems, a lubricating oil composition having a flash point of 250 ° C. or higher that is not subject to the regulation of the fourth petroleum of the Fire Service Act is desired.
本発明は、このような実情に鑑みてなされたものであり、その目的は、低摩擦性、位置決め性、低温貯蔵安定性に優れ、かつ引火点の高い潤滑油組成物を提供することにあり、さらには耐腐食性能にも優れた潤滑油組成物をも提供することにある。 The present invention has been made in view of such circumstances, and an object of the present invention is to provide a lubricating oil composition that is excellent in low friction properties, positioning properties, low temperature storage stability, and has a high flash point. Another object of the present invention is to provide a lubricating oil composition having excellent corrosion resistance.
本発明者らは、上記目的を達成すべく鋭意研究を重ねた結果、潤滑油基油に、特定の酸性リン酸エステル化合物および特定の脂肪族モノアミン化合物を含有する潤滑油組成物により上記課題が解決されることを見出し、本発明を完成するに至った。
すなわち、本発明は以下のとおりである。
As a result of intensive studies to achieve the above object, the present inventors have found that the above problem is caused by a lubricating oil composition containing a specific acidic phosphate compound and a specific aliphatic monoamine compound in the lubricating base oil. As a result, the present invention has been completed.
That is, the present invention is as follows.
［Ｉ］潤滑油基油に、（Ａ）成分として下記一般式（１）で表される酸性リン酸エステルのモノアルキル酸性リン酸エステルとジアルキル酸性リン酸エステルの混合物が組成物全量基準で０．０２〜０．０８質量％、及び（Ｂ）成分として下記一般式（２）で表される脂肪族モノアミンが組成物全量基準で０．００８〜０．０８質量％、を含有し、工作機械のすべり案内面に用いられることを特徴とする潤滑油組成物。
（Ｒ１Ｏ）ｍＰ（＝Ｏ）（ＯＨ）３−ｍ ・・・・・・（１）
（式（１）中、Ｒ１は炭素数４〜８の直鎖アルキル基を示し、ｍは１又は２である。ｍが２の場合、Ｒ１は同一であっても異なってもよい。）
Ｒ２ ｎＮＨ３−ｎ ・・・・・・（２）
（式（２）中、Ｒ２は炭素数１２〜１８の直鎖アルキル基又は直鎖アルケニル基を示し、ｎは１である。）
[I] A mixture of a monoalkyl acidic phosphate ester and a dialkyl acidic phosphate ester of an acidic phosphate ester represented by the following general formula (1) as the component (A) is added to the lubricating base oil based on the total amount of the composition. .02～ 0.08 wt%, and (B) 0.008 ~ 0.08 wt% aliphatic monoamines total amount of the composition represented by the following general formula as component (2) contains a machine tool A lubricating oil composition characterized by being used for a sliding guide surface .
(R 1 O) m P (═O) (OH) 3-m (1)
(In the formula (1), R 1 represents a linear alkyl group of 4 to 8 carbon atoms, m is if .m is 2 to 1 or 2, R 1 may be the same or different. )
R 2 n NH 3-n (2)
(In the formula (2), R 2 represents a linear alkyl group or linear alkenyl group having 12 to 18 carbon atoms, and n is 1. )
［II］前記（Ａ）成分と前記（Ｂ）成分の反応生成物をさらに含有することを特徴とする前記［Ｉ］に記載の潤滑油組成物。 [II] The lubricating oil composition according to [I], further comprising a reaction product of the component (A) and the component (B).
［III］前記（Ａ）成分が、モノｎ−ヘキシルアシッドホスフェートとジｎ−ヘキシルアシッドホスフェートの混合物又はモノｎ−オクチルアシッドホスフェートとジｎ−オクチルアシッドホスフェートの混合物であることを特徴とする前記［Ｉ］又は［II］に記載の潤滑油組成物。
[III] The component (A) is a mixture of mono n-hexyl acid phosphate and di n-hexyl acid phosphate or a mixture of mono n-octyl acid phosphate and di n-octyl acid phosphate. The lubricating oil composition according to [I] or [II].
［IV］引火点が２５０℃以上であることを特徴とする前記［Ｉ］〜［III］のいずれかに記載の潤滑油組成物。 [IV] The lubricating oil composition according to any one of [I] to [III] above, having a flash point of 250 ° C. or higher.
本発明の潤滑油組成物は、位置決め性が高く、貯蔵安定性に優れ、かつ引火点が高い。したがって、本発明の潤滑油組成物は、工作機械の動作の安定化、長寿命化、及び安全性などの点で非常に有用である。 The lubricating oil composition of the present invention has high positioning properties, excellent storage stability, and high flash point. Therefore, the lubricating oil composition of the present invention is very useful in terms of stabilizing the operation of the machine tool, extending its life, and safety.
以下、本発明について説明する。 The present invention will be described below.
本発明で用いられる潤滑油基油としては特に制限はないが、鉱油、油脂および合成油を挙げることができる。
鉱油系基油としては、その製法に特に制限はなく、例えば、原油を常圧蒸留および減圧蒸留して得られた潤滑油留分に対して、溶剤脱れき、溶剤抽出、水素化分解、溶剤脱ろう、接触脱ろう、水素化精製、硫酸洗浄、白土処理等の精製手段を１種もしくは２種以上適宜組み合わせて適用して得られるパラフィン系またはナフテン系の鉱油を挙げることができる。
The lubricating base oil used in the present invention is not particularly limited, and examples thereof include mineral oils, fats and oils, and synthetic oils.
There are no particular limitations on the production method of the mineral oil base oil. For example, a lubricating oil fraction obtained by subjecting crude oil to atmospheric distillation and vacuum distillation is subjected to solvent removal, solvent extraction, hydrocracking, solvent Mention may be made of paraffinic or naphthenic mineral oils obtained by applying one or more refining means such as dewaxing, catalytic dewaxing, hydrorefining, sulfuric acid washing, and clay treatment as appropriate.
油脂としては、例えば、牛脂、豚脂、大豆油、菜種油、米ぬか油、ヤシ油、パーム油、パーム核油、あるいはこれらの水素添加物などが挙げられる。また、遺伝子組み換え技術を利用してオレイン酸含有量を高くした前記油脂も好適に使用できる。 Examples of the fats and oils include beef tallow, lard, soybean oil, rapeseed oil, rice bran oil, coconut oil, palm oil, palm kernel oil, and hydrogenated products thereof. Moreover, the said fats and oils which raised the oleic acid content using the gene recombination technique can also be used conveniently.
合成油としては、例えば、ポリ−α−オレフィン（エチレン−プロピレン共重合体、ポリブテン、１−オクテンオリゴマー、１−デセンオリゴマー、これらの水素化物など）、アルキルベンゼン、アルキルナフタレン、モノエステル（ブチルステアレート、オクチルラウレートなど）、ジエステル（ジトリデシルグルタレート、ジ−２−エチルヘキシルアジペート、ジイソデシルアジペート、ジトリデシルアジペート、ジ−２−エチルヘキシルセパケートなど）、ポリエステル（トリメリット酸エステルなど）、ポリオールエステル（トリメチロールプロパンカプリレート、トリメチロールプロパンペラルゴネート、ペンタエリスリトール−２−エチルヘキサノエート、ペンタエリスリトールペラルゴネートなど）、ポリオキシアルキレングリコール、ポリフェニルエーテル、ジアルキルジフェニルエーテル、リン酸エステル（トリクレジルホスフェートなど）、含フッ素化合物（パーフルオロポリエーテル、フッ素化ポリオレフィンなど）、シリコーン油などが例示できる。 Synthetic oils include, for example, poly-α-olefins (ethylene-propylene copolymers, polybutenes, 1-octene oligomers, 1-decene oligomers, hydrides thereof), alkylbenzenes, alkylnaphthalenes, monoesters (butyl stearate). , Octyl laurate, etc.), diester (ditridecyl glutarate, di-2-ethylhexyl adipate, diisodecyl adipate, ditridecyl adipate, di-2-ethylhexyl sepacate, etc.), polyester (trimellitic acid ester, etc.), polyol ester ( Trimethylolpropane caprylate, trimethylolpropane pelargonate, pentaerythritol-2-ethylhexanoate, pentaerythritol pelargonate), polyoxyalkylene Call, polyphenyl ether, dialkyl diphenyl ether, phosphate ester (tricresyl phosphate, etc.), fluorine-containing compound (perfluoropolyether, such as fluorinated polyolefins), such as silicone oil can be exemplified.
潤滑油基油としては、鉱油、油脂および合成油の中から選ばれた１種を単独で又は２種以上組み合わせて配合して使用することができる。 As the lubricating base oil, one kind selected from mineral oil, fats and oils and synthetic oils can be used alone or in combination of two or more kinds.
本発明で用いられる潤滑油基油の粘度については特に制限はないが、４０℃における動粘度が１０〜７００ｍｍ２／ｓの範囲にあるものが好ましく、１５〜５００ｍｍ２／ｓの範囲にあるものがより好ましい。また、本発明の潤滑油組成物における潤滑油基油の含有量は特に限定されるものではないが、組成物全量基準で５０〜９９．９８質量％の範囲であることが好ましい。 No particular limitation is imposed on the viscosity of the lubricating base oil used in the present invention preferably has kinematic viscosity at 40 ° C. is in the range of 10~700mm 2 / s, which is in the range of 15~500mm 2 / s Is more preferable. Further, the content of the lubricating base oil in the lubricating oil composition of the present invention is not particularly limited, but is preferably in the range of 50 to 99.98% by mass based on the total amount of the composition.
本発明の潤滑油組成物における（Ａ）成分のリン化合物は、具体的には、モノアルキル酸性リン酸エステル、ジアルキル酸性リン酸エステル、及びこれらの混合物が挙げられる。これらのアルキル酸性リン酸エステルのアルキル基は、直鎖状のアルキル基であり、炭素数４〜８、好ましくは６〜８のアルキル基である。また、ジアルキル酸性リン酸エステルの２つのアルキル基の炭素数は同一でもよく異なっていても良い。
炭素数が４未満及び炭素数が８を超えると、位置決め性能が劣って好ましくない。
Specific examples of the phosphorus compound of component (A) in the lubricating oil composition of the present invention include monoalkyl acidic phosphate esters, dialkyl acidic phosphate esters, and mixtures thereof. The alkyl group of these alkyl acidic phosphates is a linear alkyl group, and is an alkyl group having 4 to 8 carbon atoms, preferably 6 to 8 carbon atoms. Moreover, the carbon number of the two alkyl groups of the dialkyl acidic phosphate ester may be the same or different.
When the carbon number is less than 4 and the carbon number exceeds 8, the positioning performance is inferior, which is not preferable.
この炭素数４〜８の直鎖アルキル基としては、具体的には、ブチル基、ペンチル基、ヘキシル基、ヘプチル基、オクチル基である。 Specific examples of the linear alkyl group having 4 to 8 carbon atoms include a butyl group, a pentyl group, a hexyl group, a heptyl group, and an octyl group.
（Ａ）成分として好ましい化合物としては、具体的には、モノｎ−ブチルアシッドホスフェート、モノｎ−ペンチルアシッドホスフェート、モノｎ−ヘキシルアシッドホスフェート、モノｎ−ヘプチルアシッドアシッドホスフェート、モノｎ−オクチルアシッドホスフェート、ジｎ−ブチルアシッドホスフェート、ジｎ−ペンチルアシッドホスフェート、ジｎ−ヘキシルアシッドホスフェート、ジｎ−ヘプチルアシッドアシッドホスフェート、ジｎ−オクチルアシッドホスフェートなどが挙げられる。 Specific examples of preferred compounds as the component (A) include mono n-butyl acid phosphate, mono n-pentyl acid phosphate, mono n-hexyl acid phosphate, mono n-heptyl acid phosphate, mono n-octyl acid phosphate. , Di-n-butyl acid phosphate, di-n-pentyl acid phosphate, di-n-hexyl acid phosphate, di-n-heptyl acid phosphate, di-n-octyl acid phosphate, and the like.
本発明の潤滑油組成物において、（Ａ）成分の酸性リン酸エステルの含有量は、組成物全量基準で０．００５〜０．１質量％であり、低摩擦性能及び位置決め性能に一層優れる点から、組成物全量基準で、好ましくは０．０１質量％以上である。また、得られるすべり案内面用潤滑油組成物の耐腐食性に一層優れる点から、また引火点に悪影響を与えない点から、（Ａ）成分の酸性リン酸エステルの含有量は、組成物全量基準で、０．１質量％以下、好ましくは０．０８質量％以下である。 In the lubricating oil composition of the present invention, the content of the acidic phosphate ester as the component (A) is 0.005 to 0.1% by mass based on the total amount of the composition, and is further excellent in low friction performance and positioning performance. Therefore, it is preferably 0.01% by mass or more based on the total amount of the composition. Moreover, from the point which is further excellent in the corrosion resistance of the obtained lubricating oil composition for sliding guide surfaces, and since it does not have a bad influence on a flash point, content of the acidic phosphate ester of (A) component is the composition whole quantity. On the basis, it is 0.1% by mass or less, preferably 0.08% by mass or less.
本発明の潤滑油組成物における（Ｂ）成分の脂肪族モノアミンは、炭素数が１２〜１８の直鎖アルキル基及び／又は直鎖アルケニル基を１〜３個有するモノアミンであり、第一級アミン、第二級アミンおよび第三級アミンのいずれであってもよいが、第一級アミンまたは第二級アミンが好ましく、第一級アミンが最も好ましい。
炭素数が１２未満及び炭素数が１８を超えると、位置決め性能が劣って好ましくない。
The aliphatic monoamine of component (B) in the lubricating oil composition of the present invention is a monoamine having 1 to 3 linear alkyl groups and / or linear alkenyl groups having 12 to 18 carbon atoms, and is a primary amine. Any of secondary amines and tertiary amines may be used, but primary amines or secondary amines are preferred, and primary amines are most preferred.
When the carbon number is less than 12 and the carbon number exceeds 18, the positioning performance is inferior, which is not preferable.
上記の炭素数１２〜１８の直鎖アルキル基又は直鎖アルケニル基としては、具体的には、ドデシル基、トリデシル基、テトラデシル基、ペンタデシル基、ヘキサデシル基、ヘプタデシル基、オクタデシル基；ドデセニル基、トリデセニル基、テトラデセニル基、ペンタデセニル基、ヘキサデセニル基、ヘプタデセニル基、オクタデセニル基のアルケニル基（これらのアルケニル基の二重結合の位置は任意である）などが挙げられる。 Specific examples of the linear alkyl group or linear alkenyl group having 12 to 18 carbon atoms include dodecyl group, tridecyl group, tetradecyl group, pentadecyl group, hexadecyl group, heptadecyl group, octadecyl group; dodecenyl group, tridecenyl group. Group, tetradecenyl group, pentadecenyl group, hexadecenyl group, heptadecenyl group, alkenyl group of octadecenyl group (the position of the double bond of these alkenyl groups is arbitrary), and the like.
本発明の潤滑油組成物において、（Ｂ）成分の脂肪族モノアミンの含有量は、組成物全量基準で０．００５〜０．１質量％であり、金属材料への耐腐食性能に一層優れる点から、組成物全量基準で、好ましくは０．００８質量％以上である。また、低臭気性、溶解性及び引火点に悪影響を与えない点から、（Ｂ）成分の脂肪族モノアミンの含有量は、組成物全量基準で、好ましくは０．０８質量％以下であり、より好ましくは０．０５質量％以下である。 In the lubricating oil composition of the present invention, the content of the aliphatic monoamine as the component (B) is 0.005 to 0.1% by mass based on the total amount of the composition, and the corrosion resistance performance to the metal material is further improved. Therefore, it is preferably 0.008% by mass or more based on the total amount of the composition. Moreover, from the point which does not have a bad influence on low odor property, solubility, and flash point, content of the aliphatic monoamine of the component (B) is preferably 0.08% by mass or less based on the total amount of the composition. Preferably it is 0.05 mass% or less.
本発明の潤滑油組成物には、位置決め性能などの性能を付与するために前記の（Ａ）成分と（Ｂ）成分の反応生成物をさらに含有することができる。
かかる（Ａ）成分と（Ｂ）成分の反応生成物の含有量は、組成物全量基準で０．００５〜０．１質量％が好ましく、より好ましくは０．００８〜０．０８質量％である。
The lubricating oil composition of the present invention may further contain a reaction product of the components (A) and (B) in order to impart performance such as positioning performance.
The content of the reaction product of the component (A) and the component (B) is preferably 0.005 to 0.1% by mass, more preferably 0.008 to 0.08% by mass based on the total amount of the composition. .
本発明の潤滑油組成物には、さらにその性能を高めるために、あるいは潤滑油組成物、特に工作機械の摺動面用潤滑油組成物として必要な性能を付与するために潤滑油分野において公知の添加剤を配合することができる。 The lubricating oil composition of the present invention is known in the lubricating oil field in order to further enhance its performance, or to impart performance required as a lubricating oil composition, particularly a lubricating oil composition for sliding surfaces of machine tools. Additives can be blended.
かかる添加剤としては、例えば、１価アルコール又は多価アルコール、１塩基酸又は多塩基酸、前記アルコールと前記酸とのエステル、一般式（２）で示される脂肪族モノアミン以外のアミン；ジ−ｔｅｒｔ−ブチル−ｐ−クレゾール、ビスフェノールＡ等のフェノール系化合物、フェニル−α−ナフチルアミン、Ｎ，Ｎ’−ジ（２−ナフチル）−ｐ−フェニレンジアミン等のアミン系化合物等の酸化防止剤；ベンゾトリアゾールやアルキルチアジアゾール等の金属不活性化剤；シリコーン油、フルオロシリコン油等の消泡剤；硫黄を含有するりん酸エステル化合物；アルケニルコハク酸、ソルビタンモノオレート等のさび止め添加剤；ポリメタクリレート等の流動点降下剤；ポリメタクリレート、ポリブテン、ポリアルキルスチレン、オレフィンコポリマー、スチレン−ジエンコポリマー、スチレン−無水マレイン酸コポリマー等の粘度指数向上剤などが挙げられる。 Examples of such additives include monohydric alcohols or polyhydric alcohols, monobasic acids or polybasic acids, esters of the alcohol and the acid, amines other than the aliphatic monoamine represented by the general formula (2); Antioxidants such as phenolic compounds such as tert-butyl-p-cresol and bisphenol A, and amine compounds such as phenyl-α-naphthylamine and N, N′-di (2-naphthyl) -p-phenylenediamine; Metal deactivators such as triazole and alkylthiadiazole; Antifoaming agents such as silicone oil and fluorosilicone oil; Phosphate ester compounds containing sulfur; Rust prevention additives such as alkenyl succinic acid and sorbitan monooleate; Polymethacrylate, etc. Pour point depressants: Polymethacrylate, Polybutene, Polyalkylstyrene, Ole Inkoporima, styrene - diene copolymers, styrene - like viscosity index improvers, such as maleic anhydride copolymers.
本発明の潤滑油組成物は、位置決め性が高く、貯蔵安定性に優れ、かつ引火点が高い。したがって、本発明の潤滑油組成物は、工作機械の動作の安定化、長寿命化、及び安全性などの点で非常に有用である。
したがって、本発明の潤滑油組成物は、低摩擦性や耐ステイン性が要求される様々な用途で好適に使用される。中でも、工作機械等のすべり案内面（摺動面）用の潤滑油として使用した場合に、本発明の効果がより一層発揮される。
The lubricating oil composition of the present invention has high positioning properties, excellent storage stability, and high flash point. Therefore, the lubricating oil composition of the present invention is very useful in terms of stabilizing the operation of the machine tool, extending its life, and safety.
Therefore, the lubricating oil composition of the present invention is suitably used in various applications that require low friction and stain resistance. In particular, the effect of the present invention is further exhibited when used as a lubricant for a sliding guide surface (sliding surface) of a machine tool or the like.
以下、実施例及び比較例に基づき本発明を更に具体的に説明するが、本発明はこれらの実施例に何ら限定されるものではない。 EXAMPLES Hereinafter, although this invention is demonstrated further more concretely based on an Example and a comparative example, this invention is not limited to these Examples at all.
［実施例１〜９、比較例１〜１７］
表１、表２の各例に示すような組成を有する各種の本発明に係る潤滑油組成物及び比較例のための潤滑油組成物をそれぞれ調製した。各組成物の調製に用いた成分は、以下のとおりである。なお、引火点はＪＩＳ Ｋ ２２６５「原油及び石油製品−引火点試験方法（クリーブランド開放式）」に準拠して測定した。
[Examples 1-9, Comparative Examples 1-17]
Various lubricating oil compositions according to the present invention and compositions for comparative examples having compositions as shown in Table 1 and Table 2 were prepared. The components used for the preparation of each composition are as follows. The flash point was measured according to JIS K 2265 “Crude oil and petroleum products—Flash point test method (Cleveland open type)”.
（１）潤滑油基油
基油１：溶剤脱ろう、水素化精製したパラフィン系鉱油（粘度指数９８、硫黄分０．６２質量％、４０℃における動粘度６８．８ｍｍ２／ｓ、引火点２５６℃）
(1) Lubricating oil base oil Base oil 1: solvent dewaxing, hydrorefined paraffinic mineral oil (viscosity index 98, sulfur content 0.62 mass%, kinematic viscosity at 40 ° C. 68.8 mm 2 / s, flash point 256 ℃)
（２）リン化合物
Ａ１：モノｎ−ヘキシルアシッドホスフェートとジｎ−ヘキシルアシッドホスフェートの混合物（リン含有量：１４．５質量％）
Ａ２：モノｎ−オクチルアシッドホスフェートとジｎ−オクチルアシッドホスフェートの混合物（リン含有量：１１．６質量％）
Ａ３：モノｎ−ラウリルアシッドホスフェートとジｎ−ラウリルアシッドホスフェートの混合物（リン含有量：８．６質量％）
Ａ４：モノｎ−オレイルアシッドホスフェートとジｎ−オリルアシッドホスフェートの混合物（リン含有量：６．６質量％）
Ａ５：ジメチルアシッドホスフェート，ジエチルアシッドホスフェート，ジn-プロピルアシッドホスフェートの混合物。
Ａ６：モノ２−エチルヘキシルアシッドホスフェートとジ２−エチルヘキシルアシッドホスフェートの混合物（リン含有量：１２．０質量％）
(2) Phosphorus compound A1: Mixture of mono n-hexyl acid phosphate and di n-hexyl acid phosphate (phosphorus content: 14.5% by mass)
A2: Mixture of mono n-octyl acid phosphate and di n-octyl acid phosphate (phosphorus content: 11.6% by mass)
A3: Mixture of mono n-lauryl acid phosphate and di-n-lauryl acid phosphate (phosphorus content: 8.6% by mass)
A4: Mixture of mono-n-oleyl acid phosphate and di-n-olyl acid phosphate (phosphorus content: 6.6% by mass)
A5: Mixture of dimethyl acid phosphate, diethyl acid phosphate, di-n-propyl acid phosphate.
A6: Mixture of mono-2-ethylhexyl acid phosphate and di-2-ethylhexyl acid phosphate (phosphorus content: 12.0% by mass)
（３）脂肪族モノアミン
Ｂ１：ラウリルアミン
Ｂ２：オレイルアミン
Ｂ３：ヘキシルアミン
Ｂ４：イコシルアミン
Ｂ５：ジ−２−エチルヘキシルアミン
Ｂ６：ジ−イソトリデシルアミン
(3) Aliphatic monoamine B1: Laurylamine B2: Oleylamine B3: Hexylamine B4: Icosylamine B5: Di-2-ethylhexylamine B6: Di-isotridecylamine
次に、実施例１〜９及び比較例１〜１７の各潤滑油組成物について以下の試験を行った。 Next, the following tests were performed on the lubricating oil compositions of Examples 1 to 9 and Comparative Examples 1 to 17.
＜位置決め精度試験＞
ＮＣ精密旋盤における任意の座標からＺ軸方向に１０秒ごとにプラス方向へ１μｍずつ、計２０回、早送りの速度（２４ｍ／ｍｉｎ）での微小送りを行うように数値制御で指令し、その後続いてマイナス方向に同様の微小送りを行うように指令した。実際の移動量を静電容量型変位計で測定し、数値制御指令に対する旋盤の案内面の応答精度を潤滑油ごとに測定した。
位置決め精度の評価はプラス方向に送った後、マイナス方向に反転させる指令に対し、実際に動き出すまでに必要な指令数を評価値とした。
試験は２５℃にて行い、試験油にて十分に慣らし運転を行った後に各試験油について３回繰り返して測定し、その平均値を求めた。
<Positioning accuracy test>
Instructed by numerical control to perform minute feed at a rapid feed rate (24 m / min) 20 times in total, 1 μm in the positive direction every 10 seconds from an arbitrary coordinate on the NC precision lathe, followed by And commanded the same minute feed in the minus direction. The actual displacement was measured with a capacitance displacement meter, and the response accuracy of the lathe guide surface to the numerical control command was measured for each lubricant.
The evaluation of the positioning accuracy was made by evaluating the number of commands required until the movement actually started with respect to the command to be reversed in the minus direction after being sent in the plus direction.
The test was performed at 25 ° C., and after sufficiently running in with the test oil, each test oil was measured three times and the average value was obtained.
＜添加剤溶解性試験＞
表１及び表２に記載の組成物を透明なガラス瓶（容量１００ｍＬ）に８０ｍＬ採取し栓をして、遮光した状態で０℃の恒温槽内に３０日放置した。その後外観を目視で確認し、濁りや沈殿が無いものを合格とした。
<Additive solubility test>
80 mL of the composition described in Tables 1 and 2 was collected in a transparent glass bottle (capacity 100 mL), stoppered, and left in a thermostatic bath at 0 ° C. for 30 days in a light-shielded state. Thereafter, the external appearance was confirmed by visual observation, and those having no turbidity or precipitation were regarded as acceptable.
表１、２に示した結果から明らかなように、実施例１〜９の潤滑油組成物は、比較例１〜１７と比較して、位置決め精度が高く、添加剤の溶解性も良好で、さらに添加剤添加による引火点の低下が小さいことがわかる。 As is clear from the results shown in Tables 1 and 2, the lubricating oil compositions of Examples 1 to 9 have higher positioning accuracy and good solubility of the additives compared to Comparative Examples 1 to 17, Further, it can be seen that the reduction in flash point due to the addition of additives is small.
本発明の潤滑油組成物は、位置決め精度が高く、工作機械のすべり案内面用として特に好適である。 The lubricating oil composition of the present invention has a high positioning accuracy and is particularly suitable for a sliding guide surface of a machine tool.
Claims (4)
（Ａ）成分として下記一般式（１）で表される酸性リン酸エステルのモノアルキル酸性リン酸エステルとジアルキル酸性リン酸エステルの混合物が組成物全量基準で０．０２〜０．０８質量％、及び
（Ｂ）成分として下記一般式（２）で表される脂肪族モノアミンが組成物全量基準で０．００８〜０．０８質量％、
を含有し、工作機械のすべり案内面に用いられることを特徴とする潤滑油組成物。
（Ｒ１Ｏ）ｍＰ（＝Ｏ）（ＯＨ）３−ｍ ・・・・・・（１）
（式（１）中、Ｒ１は炭素数４〜８の直鎖アルキル基を示し、ｍは１又は２である。ｍが２の場合、Ｒ１は同一であっても異なってもよい。）
Ｒ２ ｎＮＨ３−ｎ ・・・・・・（２）
（式（２）中、Ｒ２は炭素数１２〜１８の直鎖アルキル基又は直鎖アルケニル基を示し、ｎは１である。） In lubricating base oil,
(A) The mixture of the monoalkyl acidic phosphate ester and the dialkyl acidic phosphate ester of the acidic phosphate ester represented by the following general formula (1) as the component is 0.02 to 0.08 % by mass based on the total amount of the composition, And the aliphatic monoamine represented by the following general formula (2) as the component (B) is 0.008 to 0.08 % by mass based on the total amount of the composition,
And a lubricating oil composition characterized by being used for a sliding guide surface of a machine tool .
(R 1 O) m P (═O) (OH) 3-m (1)
(In the formula (1), R 1 represents a linear alkyl group of 4 to 8 carbon atoms, m is if .m is 2 to 1 or 2, R 1 may be the same or different. )
R 2 n NH 3-n (2)
(In the formula (2), R 2 represents a linear alkyl group or linear alkenyl group having 12 to 18 carbon atoms, and n is 1. )
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| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |