EP4294897A1 - Base oil and lubricating fluid composition containing said base oil - Google Patents
Base oil and lubricating fluid composition containing said base oilInfo
- Publication number
- EP4294897A1 EP4294897A1 EP23714627.9A EP23714627A EP4294897A1 EP 4294897 A1 EP4294897 A1 EP 4294897A1 EP 23714627 A EP23714627 A EP 23714627A EP 4294897 A1 EP4294897 A1 EP 4294897A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- base oil
- weight
- oligomers
- oil according
- lubricating fluid
- 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
- 239000002199 base oil Substances 0.000 title claims abstract description 58
- 239000000203 mixture Substances 0.000 title claims abstract description 54
- 239000012530 fluid Substances 0.000 title claims abstract description 47
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 45
- 229920013639 polyalphaolefin Polymers 0.000 claims abstract description 44
- 229920001515 polyalkylene glycol Polymers 0.000 claims abstract description 30
- 239000005076 polymer ester Substances 0.000 claims abstract description 21
- 235000013305 food Nutrition 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- -1 alpha/beta-unsaturated dicarboxylic acid diesters Chemical class 0.000 claims description 47
- 239000000654 additive Substances 0.000 claims description 36
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 claims description 21
- 239000003921 oil Substances 0.000 claims description 20
- 229910019142 PO4 Inorganic materials 0.000 claims description 19
- 235000021317 phosphate Nutrition 0.000 claims description 19
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 claims description 18
- 125000004432 carbon atom Chemical group C* 0.000 claims description 15
- 239000004711 α-olefin Substances 0.000 claims description 15
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1-dodecene Chemical compound CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 claims description 14
- 229920005862 polyol Polymers 0.000 claims description 14
- 239000010452 phosphate Substances 0.000 claims description 13
- 125000002947 alkylene group Chemical group 0.000 claims description 12
- 150000005690 diesters Chemical class 0.000 claims description 12
- 150000003077 polyols Chemical class 0.000 claims description 10
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 9
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 8
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 7
- 229940069096 dodecene Drugs 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 6
- 239000000194 fatty acid Substances 0.000 claims description 6
- 229930195729 fatty acid Natural products 0.000 claims description 6
- 238000006116 polymerization reaction Methods 0.000 claims description 6
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 5
- 125000003158 alcohol group Chemical group 0.000 claims description 4
- 150000003973 alkyl amines Chemical class 0.000 claims description 4
- 238000006555 catalytic reaction Methods 0.000 claims description 2
- 125000004185 ester group Chemical group 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 30
- 235000019198 oils Nutrition 0.000 description 19
- 229920001971 elastomer Polymers 0.000 description 16
- 239000000806 elastomer Substances 0.000 description 15
- 150000002148 esters Chemical class 0.000 description 12
- 239000000314 lubricant Substances 0.000 description 10
- 229920000459 Nitrile rubber Polymers 0.000 description 9
- 230000000996 additive effect Effects 0.000 description 9
- 239000010720 hydraulic oil Substances 0.000 description 9
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 8
- 239000003607 modifier Substances 0.000 description 8
- 230000008961 swelling Effects 0.000 description 8
- 238000009472 formulation Methods 0.000 description 7
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 7
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical class FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 description 4
- XDOFQFKRPWOURC-UHFFFAOYSA-N 16-methylheptadecanoic acid Chemical compound CC(C)CCCCCCCCCCCCCCC(O)=O XDOFQFKRPWOURC-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical class OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000012208 gear oil Substances 0.000 description 4
- 239000011976 maleic acid Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229920002367 Polyisobutene Polymers 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000001530 fumaric acid Substances 0.000 description 3
- 235000011187 glycerol Nutrition 0.000 description 3
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000001593 sorbitan monooleate Substances 0.000 description 3
- 235000011069 sorbitan monooleate Nutrition 0.000 description 3
- 229940035049 sorbitan monooleate Drugs 0.000 description 3
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 description 2
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 2
- DIOYAVUHUXAUPX-ZHACJKMWSA-N 2-[methyl-[(e)-octadec-9-enoyl]amino]acetic acid Chemical compound CCCCCCCC\C=C\CCCCCCCC(=O)N(C)CC(O)=O DIOYAVUHUXAUPX-ZHACJKMWSA-N 0.000 description 2
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical compound CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 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 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 150000001565 benzotriazoles Chemical class 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 150000001991 dicarboxylic acids Chemical class 0.000 description 2
- VJHINFRRDQUWOJ-UHFFFAOYSA-N dioctyl sebacate Chemical group CCCCC(CC)COC(=O)CCCCCCCCC(=O)OCC(CC)CCCC VJHINFRRDQUWOJ-UHFFFAOYSA-N 0.000 description 2
- 239000012990 dithiocarbamate Substances 0.000 description 2
- 150000004659 dithiocarbamates Chemical class 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000006078 metal deactivator Substances 0.000 description 2
- HNEGQIOMVPPMNR-UHFFFAOYSA-N methylfumaric acid Natural products OC(=O)C(C)=CC(O)=O HNEGQIOMVPPMNR-UHFFFAOYSA-N 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 2
- 150000002989 phenols Chemical class 0.000 description 2
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 229920005652 polyisobutylene succinic anhydride Polymers 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 2
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical class O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 2
- 229920001897 terpolymer Polymers 0.000 description 2
- IKXFIBBKEARMLL-UHFFFAOYSA-N triphenoxy(sulfanylidene)-$l^{5}-phosphane Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=S)OC1=CC=CC=C1 IKXFIBBKEARMLL-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- FGHOOJSIEHYJFQ-UHFFFAOYSA-N (2,4-ditert-butylphenyl) dihydrogen phosphite Chemical compound CC(C)(C)C1=CC=C(OP(O)O)C(C(C)(C)C)=C1 FGHOOJSIEHYJFQ-UHFFFAOYSA-N 0.000 description 1
- OYHQOLUKZRVURQ-NTGFUMLPSA-N (9Z,12Z)-9,10,12,13-tetratritiooctadeca-9,12-dienoic acid Chemical compound C(CCCCCCC\C(=C(/C\C(=C(/CCCCC)\[3H])\[3H])\[3H])\[3H])(=O)O OYHQOLUKZRVURQ-NTGFUMLPSA-N 0.000 description 1
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- CGBYBGVMDAPUIH-ONEGZZNKSA-N (e)-2,3-dimethylbut-2-enedioic acid Chemical compound OC(=O)C(/C)=C(\C)C(O)=O CGBYBGVMDAPUIH-ONEGZZNKSA-N 0.000 description 1
- RGASRBUYZODJTG-UHFFFAOYSA-N 1,1-bis(2,4-ditert-butylphenyl)-2,2-bis(hydroxymethyl)propane-1,3-diol dihydroxyphosphanyl dihydrogen phosphite Chemical compound OP(O)OP(O)O.C(C)(C)(C)C1=C(C=CC(=C1)C(C)(C)C)C(O)(C(CO)(CO)CO)C1=C(C=C(C=C1)C(C)(C)C)C(C)(C)C RGASRBUYZODJTG-UHFFFAOYSA-N 0.000 description 1
- RAADJDWNEAXLBL-UHFFFAOYSA-N 1,2-di(nonyl)naphthalene Chemical compound C1=CC=CC2=C(CCCCCCCCC)C(CCCCCCCCC)=CC=C21 RAADJDWNEAXLBL-UHFFFAOYSA-N 0.000 description 1
- DWANEFRJKWXRSG-UHFFFAOYSA-N 1,2-tetradecanediol Chemical compound CCCCCCCCCCCCC(O)CO DWANEFRJKWXRSG-UHFFFAOYSA-N 0.000 description 1
- CYXGBTZYTXLVDN-UHFFFAOYSA-N 1-octoxyphosphonoyloxyoctane Chemical compound CCCCCCCCOP(=O)OCCCCCCCC CYXGBTZYTXLVDN-UHFFFAOYSA-N 0.000 description 1
- 239000000263 2,3-dihydroxypropyl (Z)-octadec-9-enoate Substances 0.000 description 1
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-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
- BODRLKRKPXBDBN-UHFFFAOYSA-N 3,5,5-Trimethyl-1-hexanol Chemical compound OCCC(C)CC(C)(C)C BODRLKRKPXBDBN-UHFFFAOYSA-N 0.000 description 1
- RZRNAYUHWVFMIP-GDCKJWNLSA-N 3-oleoyl-sn-glycerol Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@H](O)CO RZRNAYUHWVFMIP-GDCKJWNLSA-N 0.000 description 1
- XZIIFPSPUDAGJM-UHFFFAOYSA-N 6-chloro-2-n,2-n-diethylpyrimidine-2,4-diamine Chemical compound CCN(CC)C1=NC(N)=CC(Cl)=N1 XZIIFPSPUDAGJM-UHFFFAOYSA-N 0.000 description 1
- QDTDKYHPHANITQ-UHFFFAOYSA-N 7-methyloctan-1-ol Chemical compound CC(C)CCCCCCO QDTDKYHPHANITQ-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 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 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000005632 Capric acid (CAS 334-48-5) Substances 0.000 description 1
- 239000005635 Caprylic acid (CAS 124-07-2) Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical class CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 1
- 239000005639 Lauric acid Substances 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
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229920001213 Polysorbate 20 Polymers 0.000 description 1
- 229920001219 Polysorbate 40 Polymers 0.000 description 1
- 229920001214 Polysorbate 60 Polymers 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- IYFATESGLOUGBX-YVNJGZBMSA-N Sorbitan monopalmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O IYFATESGLOUGBX-YVNJGZBMSA-N 0.000 description 1
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RYYWUUFWQRZTIU-UHFFFAOYSA-N Thiophosphoric acid Chemical class OP(O)(S)=O RYYWUUFWQRZTIU-UHFFFAOYSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- CGBYBGVMDAPUIH-UHFFFAOYSA-N acide dimethylmaleique Natural products OC(=O)C(C)=C(C)C(O)=O CGBYBGVMDAPUIH-UHFFFAOYSA-N 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- DTOSIQBPPRVQHS-PDBXOOCHSA-N alpha-linolenic acid Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCC(O)=O DTOSIQBPPRVQHS-PDBXOOCHSA-N 0.000 description 1
- 235000020661 alpha-linolenic acid Nutrition 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000010775 animal oil Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 150000001639 boron compounds Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 150000003857 carboxamides Chemical class 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000010724 circulating oil Substances 0.000 description 1
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 description 1
- 229930003836 cresol Natural products 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- LMODBLQHQHXPEI-UHFFFAOYSA-N dibutylcarbamothioylsulfanylmethyl n,n-dibutylcarbamodithioate Chemical compound CCCCN(CCCC)C(=S)SCSC(=S)N(CCCC)CCCC LMODBLQHQHXPEI-UHFFFAOYSA-N 0.000 description 1
- 150000001990 dicarboxylic acid derivatives Chemical class 0.000 description 1
- HUDSKKNIXMSHSZ-UHFFFAOYSA-N dihexyl hydrogen phosphate Chemical compound CCCCCCOP(O)(=O)OCCCCCC HUDSKKNIXMSHSZ-UHFFFAOYSA-N 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- CGBYBGVMDAPUIH-ARJAWSKDSA-N dimethylmaleic acid Chemical compound OC(=O)C(/C)=C(/C)C(O)=O CGBYBGVMDAPUIH-ARJAWSKDSA-N 0.000 description 1
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical class C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000005456 glyceride group Chemical group 0.000 description 1
- 229940075507 glyceryl monostearate Drugs 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000010722 industrial gear oil Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 239000011968 lewis acid catalyst Substances 0.000 description 1
- 229960004488 linolenic acid Drugs 0.000 description 1
- KQQKGWQCNNTQJW-UHFFFAOYSA-N linolenic acid Natural products CC=CCCC=CCC=CCCCCCCCC(O)=O KQQKGWQCNNTQJW-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- HNEGQIOMVPPMNR-NSCUHMNNSA-N mesaconic acid Chemical compound OC(=O)C(/C)=C/C(O)=O HNEGQIOMVPPMNR-NSCUHMNNSA-N 0.000 description 1
- 239000012968 metallocene catalyst Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000001788 mono and diglycerides of fatty acids Substances 0.000 description 1
- RZRNAYUHWVFMIP-UHFFFAOYSA-N monoelaidin Natural products CCCCCCCCC=CCCCCCCCC(=O)OCC(O)CO RZRNAYUHWVFMIP-UHFFFAOYSA-N 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
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Classifications
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- C10M169/04—Mixtures of base-materials and additives
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- C10M111/00—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
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- C10M169/04—Mixtures of base-materials and additives
- C10M169/041—Mixtures of base-materials and additives the additives being macromolecular compounds only
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- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
- C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
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- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
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- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
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- C10M2215/064—Di- and triaryl amines
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- C10M2215/08—Amides
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- C10M2215/223—Five-membered rings containing nitrogen and carbon only
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- C10M2223/043—Ammonium or amine salts thereof
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- C10M2223/047—Thioderivatives not containing metallic elements
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- C10N2020/02—Viscosity; 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
- C10N2030/18—Anti-foaming property
-
- 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
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/62—Food grade properties
-
- 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
-
- 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
- C10N2040/08—Hydraulic fluids, e.g. brake-fluids
-
- 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
- C10N2070/00—Specific manufacturing methods for lubricant compositions
Definitions
- the present invention relates to a base oil comprising polyalphaolefins, polymer esters and polyalkylene glycols and a lubricating fluid composition containing the base oil and additives.
- the lubricating fluid composition can be used for the lubrication of gears and for use in hydraulic systems, particularly for lubrication in the food processing industry.
- a particular area of application of the base oils and lubricating fluid compositions according to the invention are lubricating points that come or can come into contact with food and/or animal feed.
- Hydraulic and transmission oils consist of a base oil and additives that are added to increase the service life and performance of the lubricating fluid.
- the base oil can consist of a mixture of different oils.
- the load on the tooth flanks is gradually applied using a weighted lever that braces one of the shafts against the other. From force level 4, the pinion tooth flanks are inspected for any damage after each force level has been completed. If the force level 12 is reached without the damage occurring, the measurement is complete.
- the requirement standard for hydraulic oil (DIN 51524-2 HLP) requires at least force level 10
- the requirement standard for circulating oils (DIN 51517-3 CLP) requires at least force level 12.
- the result is either “Pass” or “Fail” - works or doesn't work.
- Another technically relevant requirement that goes beyond DIN 51517-3 is a high micropitting capacity.
- the ability of a lubricating fluid to avoid the damage caused by micropitting also referred to as “micropitting” is referred to as micropitting capacity.
- Micropitting occurs on tooth flanks under high loads in the area of mixed friction.
- the primary influence on the development of micropitting is the thickness of the lubricant film at operating temperature.
- chemically active additives can significantly promote the development of micropitting.
- additives that improve the coefficient of friction can help prevent micropitting.
- US 9347016 B2 describes the use of a dialkyldithiophosphate as an effective component against micropitting.
- phosphonates and phoshites e.g. dioleyl phosphite
- succinimides, pyrrolidinones, molybdenum carboxylates and oleylamide are mentioned as friction modifiers to avoid micropitting.
- US 6184186 B1 claims the use of molybdenum carboxylates and sulfurized isobutylenes to avoid micropitting.
- the FVA 54 micropitting test is used, which is carried out on an FZG standard clamping testing machine.
- This test consists of two consecutive parts: a step test to determine the damage force level and a endurance test to assess the tribological long-term behavior.
- the step test the load is gradually increased from force level 5 to force level 10, with the test duration of each force level being 16 hours.
- the endurance test initially runs for 80 hours at force level 8 and then 5 x 80 hours at force level 10. After each force level, the pinion is removed and the profile shape deviation and the proportion of gray spots on the tooth flank are determined on three teeth. In addition, the weight loss of the pinion caused by wear is determined.
- the profile shape deviation is used to determine the damage force level in the step test. If a value of 7.5 pm is exceeded, the damage level is reached. If the limit value is not exceeded after the first five power levels, damage power level 10 is reached. If all six force levels are passed through without exceeding the limit value, the result is given as SKS greater than 10.
- elastomer compatibility is also important because when the oil is used for a long time, elastomers, such as radial shaft seals, shrink and can lead to leaks. Likewise, oil can cause excessive swelling, which can also lead to leaks.
- Various types of NBR and FKM elastomers are usually used in industrial transmissions, with the NBR types in particular responding strongly to the composition of the base oil mixture.
- Hydraulic oils offer protection against wear and corrosion, whereby the wear protection for HLP-classified oils (DIN 51524-2) is improved compared to HL oils (DIN 51524-1) and HVLP-classified oils (DIN 51524-3) are additional In addition to the improved wear protection, they have a more stable temperature-viscosity behavior (viscosity index) and can therefore be used in a wider temperature range.
- the terpolymer is a polymerized diester selected from a di(C4-C22 alkyl) ester of maleic acid, fumaric acid, 2-methylmaleic acid, 2,3-dimethylmaleic acid, 2-methylfumaric acid, 2,3-dimethylfumaric acid or mixtures as Polymerization product with a C6-C40 alpha-olefin and a C4-C40 alkyl (meth)acrylate.
- Polyalphaolefins or alkylene oxides are suggested as optional base oils for the lubricant.
- JP 2007-268697 A discloses oil compositions based on Fischer-Tropsch hydrocarbons and n-paraffins, as well as possibly aromatic and naphthalene hydrocarbon oils.
- the oil compositions may optionally further contain synthetic oils such as poly-alpha-olefins or polyalkylene glycols or polymers such as polymerization products of unsaturated carboxylic acid esters such as maleic acid ester or fumaric acid ester polymers polymerized with an olefinic monomer.
- the object of the invention is to provide a base oil and a lubricating fluid containing the base oil, the lubricating fluid being able to be used, among other things, as a transmission oil and/or as a hydraulic oil.
- the base oil should be such that it can absorb the additives necessary for the lubricating fluid and the additives in the base oil have the desired effect.
- the raw materials should be selected so that the lubricating fluids can also be used in the food processing industry. The selection of raw materials in the USA is regulated, for example, by the requirements of the US Food and Drug Administration (FDA).
- the lubricant fluid should, according to one embodiment, meet the CLP standard DIN 51517-3 and, in particular, from viscosity class 220 (ISO VG 220) in the micropitting test according to FVA 54, have a micropitting resistance of the “high” rating level.
- low viscosity classes of the lubricating fluid In order to be used as hydraulic oil, low viscosity classes of the lubricating fluid must also meet DIN 51524-3 (HVLP). Good compatibility with common NBR elastomers (NBR is the abbreviation for “Nitrile Butadiene Rubber”) and fluorine rubber elastomers (FKM elastomers) is desired in all viscosity classes. Summary of the invention
- the base oil according to the invention includes:
- polyalphaolefins as oligomers of C6 to C14 alpha-olefins, in particular C8 to C12 alpha-olefins;
- polymer esters obtainable as a polymerization product of one or more alpha/beta-unsaturated dicarboxylic acid diesters, the alcohol groups having 3 to 10 carbon atoms, in particular 4 to 8 carbon atoms one or more C4 to C18 alpha-olefins, in particular C10 to C16 alpha-olefins or C12 to C16 alpha-olefins;
- polyalkylene glycols obtainable from alkylene oxides, the alkylene oxides
- Propylene oxide and at least one C4 to C8 alkylene oxides are preferred.
- the base oil includes
- the above polyalphaolefins, polymer esters and polyalkylene glycols together make up more than 90% by weight, in particular more than 95% by weight, of the base oil.
- the above polyalphaolefins, polymer esters and polyalkylene glycols preferably add up to 100% by weight in the base oil.
- the base oil therefore consists of the above components.
- the polyalphaolefin is an oligomer of a 1-octene, 1-decene and/or 1-dodecene, and in particular an oligomer of 1-octene or 1-decene or 1-octene and 1-decene.
- the degree of polymerization of the polyalphaolefins can be 3 to 25. Even independently of this, the viscosity of the polyalphaolefins is preferably from 4 to 300 mm 2 /s at 100 ° C (kinematic viscosity determined according to DIN EN ISO 3104).
- the polyalphaolefins can also be used as hydrogenated products.
- the polymer esters are preferably copolymers of maleic acid and/or fumaric acid (full) esters and one or more C4 to C18 alpha-olefins.
- the alcohol groups of the dicarboxylic diesters are in particular linear and/or branched monoalcohols with 3 to 10 carbon atoms, in particular 4 to 8 carbon atoms.
- the dicarboxylic acids of the dicarboxylic diester preferably have 4 to 12 carbon atoms, in particular 4 to 6 carbon atoms.
- chain lengths of 10 to 16 carbon atoms, in particular 14 to 16 carbon atoms are preferred. These can be linear and/or branched, preferably linear.
- the molar ratio of the alpha-olefins to the dicarboxylic acid diesters can be 1.5 to 1 to 1 to 1.5, in particular 1 to 0.9 to 0.9 to 1.
- the polymer esters in particular have an average molecular weight of 1000 to 5000 g/mol and in particular! 500 to 2500 g/mol (each as a number average).
- the molar ratio of the alpha-olefins to the dicarboxylic acid diesters can be 1.5 to 1 to 1 to 1.5, in particular 1 to 0.9 to 0.9 to 1.
- the polyalkylene glycols comprise 30-70 mol% of propylene oxide and 70-30 mol% of C4 to C8 alkylene oxides, in particular butylene oxide, or in particular consist of these.
- the polyalkylene glycols are preferably soluble at room temperature in the polyalphaolefins or polyalphaolefin mixtures with which they are used together.
- the lubricating fluid composition comprises the base oil according to at least one of the preceding claims, and at least one of the following additives
- the lubricating fluid composition preferably comprises or consists of at least:
- the lubricating fluid composition comprises or consists of:
- the lubricating fluid composition includes the base oil and at least one of the following additives:
- an amine-reacted alkyl phosphate in particular mono- or di-C1- to C12-alkyl phosphate, as a wear protection additive, in particular 0.01 to 2% by weight, preferably 0.1 to 0.6% by weight and/or
- polyol monoester in particular a C12 to C24 fatty acid ester of optionally ethoxylated polyols, in particular optionally ethoxylated sorbitan mono-oleate, as a friction modifier, in particular 0.01 to 2% by weight, preferably 0.05 to 0, 3% by weight.
- the amine-reacted alkyl phosphate is preferably a mono- or di-C1 to C12 alkyl phosphate reacted with at least C10 to C18 alkyl amines.
- the reaction is preferably carried out in such a way that the alkyl phosphate is neutralized or partially neutralized. Suitable examples are mono- and diisooctyl esters of phosphoric acid reacted with tert-alkylamines and C12 to C14 primary amines (CAS Reg. No. 68187-67-7) or mono- and di-hexyl phosphoric acid reacted with tetra-methylnonylamine and C11 - to C14 alkylamines.
- Commercial products include Irgalube® 349 from BASF SE or Additin® RC 3760 from LANXESS (CAS Reg. No. 80939-62-4).
- the amine-reacted alkyl phosphate is a wear protection additive.
- the polyol monoester is preferably a C12 to C24 fatty acid ester of polyols such as glycerin, polyglycerin or sorbitan.
- the polylol can also be completely or partially ethoxylated. Suitable examples are polysorbate 20, polysorbate 40, polysorbate 60, polysorbate 120, glyceryl monostearate, glyceryl monooleate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan monooleate or polyglyceryl-4-isostearate.
- the C12 to C24 mono fatty acid esters of possibly partially ethoxylated polyols act as friction modifiers.
- the base oil in a lubricating fluid composition or the lubricating fluid composition can be used as a hydraulic and gear oil, particularly in the food processing industry and/or the feed processing industry.
- polyalphaolefins, polymer esters and polyalkylene glycols are not chemically pure products and if they are mentioned in the singular, this also means a mixture of different molecules, each of which individually corresponds to the specified specification.
- Hydraulic and transmission oils consist of a base oil and additives that are added to increase the service life and performance of the lubricating fluid.
- a mixture of the above polyalphaolefins, polymer esters and polyalkylene glycols is used as the base oil in the present invention.
- the polyalphaolefins are oligomers of in particular linear 1-alkenes, in particular 1-octene, 1-decene and/or 1-dodecene, which are produced, for example, using Lewis acid catalysts (e.g.
- the polyalphaolefin can, for example, be an oligomer of 50 to 80 wt. % 1 - decene and 50 to 20% by weight 1 -dodecene.
- the polyalphaolefins are a mixture of a1) oligomers of 1-decene and b1) oligomers of 1-octene or a mixture of a2) oligomers of 1-dodecene and b2) oligomers of 1-octene and/or 1- Decen.
- oligomers a1) or a2) can be characterized in more detail as follows: 5 to 95% by weight of oligomers a1) or a2) and 5 to 95% by weight of oligomers b1) or b2).
- the polyalphaolefins can be produced by metallocene catalysis.
- polyalphaolefins of different viscosities for example oligomers with a viscosity of 4 to 100 mm 2 /s at 100°C and oligomers with a viscosity of 50 to 300 mm 2 /s at 100°C.
- Polymer esters are polymers resulting from C,C linkages that contain side chains with ester groups. In the present case, this includes in particular the copolymers of alpha, beta-unsaturated dicarboxylic acid esters, such as maleic or fumaric acid esters with, in particular, unbranched alpha-olefins. Polymer esters and their production are described, for example, in DE 3223694 C2 and US 5435928 A.
- the polyalkylene glycols are the polymeric reaction products of water and/or a mono- or dihydric starting alcohol with 1,2-epoxides such as ethylene oxide, propylene oxide and/or butylene oxide, which include at least propylene oxide and at least one C4 to C8 alkylene oxide.
- 1,2-epoxides such as ethylene oxide, propylene oxide and/or butylene oxide, which include at least propylene oxide and at least one C4 to C8 alkylene oxide.
- the polyalkylene glycols are present, for example, as homopolymers of butylene oxide or as copolymers of propylene oxide and butylene oxide. Copolymers which consist of 30-70% propylene oxide and 70-30% butylene oxide are preferably used here.
- the polyalkylene glycols in particular have one or two terminal hydroxy groups.
- a swelling agent in the lubricating fluid composition typically an ester
- too high a swelling agent content leads to excessive swelling, which can also lead to leaks.
- Various types of NBR and FKM elastomers are used in industrial transmissions, with the NBR types in particular responding strongly to the composition, ie the polarity, of the base oil mixture.
- esters examples include monoesters, diesters, polyol esters, and complex esters, for example of C1 to C18 alcohols with a C2 to C18 carboxylic acid.
- the mono- and diesters in question here include the esters of linear or branched monohydric alcohols such as methanol, ethanol, isopropanol, isobutanol, 2-ethylhexanol, 3,5,5-trimethylhexanol or 7-methyloctanol with typical fatty acids or dicarboxylic acids, such as such as caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, oleic acid, linoleic acid, linolenic acid, adipic acid, suberic acid, sebacic acid or phthalic acid.
- the polyol esters include the formal reaction products of linear or branched carboxylic acids with polyhydric alcohols such as glycerol, neopentyl glycol, trimethylolpropane, pentaerythritol or dipentaerythritol.
- the proportion of swelling agent is chosen so that the volume expansion of the elastomer does not exceed 10%. As a rule, this means that the swelling agent is contained in the lubricating fluid composition in a proportion of 0.5 to 6% by weight, in particular 1 to 4% by weight.
- An example is di(2-ethylhexyl) sebacate.
- the polyalkylene glycol used also acts as a swelling agent.
- antioxidants include: sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfit
- primary antioxidants such as amine compounds (e.g. alkylamines or 1-phenylamino-naphthalene), aromatic amines such as phenylnaphtylamines or diphenylamines or polymeric hydroxyquinolines (e.g. TMQ), phenolic compounds (e.g. 2.6-di-tert-butyl-4- methylphenol), organic dithiocarbamates or dithiophosphates;
- amine compounds e.g. alkylamines or 1-phenylamino-naphthalene
- aromatic amines such as phenylnaphtylamines or diphenylamines or polymeric hydroxyquinolines (e.g. TMQ)
- phenolic compounds e.g. 2.6-di-tert-butyl-4- methylphenol
- organic dithiocarbamates or dithiophosphates e.g. 2.6-di-tert-butyl-4- methylphenol
- secondary antioxidants such as phosphites, e.g. tris(2,4-ditert-butylphenyl phosphite) or bis(2,4-ditert-butylphenyl) pentaerythritol diphosphite or thioethers (e.g. cresol thioether);
- phosphites e.g. tris(2,4-ditert-butylphenyl phosphite) or bis(2,4-ditert-butylphenyl) pentaerythritol diphosphite or thioethers (e.g. cresol thioether);
- High pressure additives and/or wear protection additives such as organic sulfur compounds such as polysulfides or sulfurized olefins, thiophosphates (e.g. triphenylthiophosphate) and dithiophosphates, phosphites and phosphonates (e.g. di-n-octyl phosphonate), phosphates (e.g. substituted triphenyl phosphates). or amine-neutralized alkyl phosphates), inorganic or organic boron compounds, thiocarbamates and dithiocarbamates (e.g. methylene bis(dibutyldithiocarbamate));
- Corrosion inhibitors such as sulfonates, such as petroleum sulfonate, dinonyl naphthalene sulfonate; neutral or overbased calcium sulfonates, magnesium sulfonates, sodium sulfonates, calcium and sodium naphthalene sulfonates, sulfonic acid esters, amine phosphates; N-methyl-N-(1-oxo-9-octadecenyl)glycine;
- Metal deactivators such as benzotriazoles, such as methylbenzotriazole dialkylamine, sterically hindered phenols, sodium nitrite;
- Viscosity improvers such as polymethacrylate, polyisobutylene, polystyrenes
- Friction reducers some with anti-wear properties such as organic acids (e.g. isostearic acid), fatty acid esters of possibly partially ethoxylated polyols such as glycerol or sorbitan, partial glycerides, animal or vegetable oils, dialkyl hydrogen phosphonates, carboxamides such as oleylamides, organic compounds based on polyethers and amides, e.g. alkyl polyethylene glycol. col tetradecylene glycol ether, alkyl succinates, PIBSI (polyisobutylene succinic acid imide) or PIBSA (polyisobutylene succinic anhydride).
- organic acids e.g. isostearic acid
- fatty acid esters of possibly partially ethoxylated polyols such as glycerol or sorbitan
- partial glycerides animal or vegetable oils
- dialkyl hydrogen phosphonates carboxamides such as o
- Solids The use of particles (boron nitride, silicon dioxide, layered silicates such as bentonite, carbon nanotubes) is possible in gear oils to achieve certain properties. In order not to produce negative effects with regard to tribological performance, very small particles (so-called nanoparticles with particle sizes of less than 500 nm, preferably less than 100 nm, particularly preferably less than 50 nm) are used.
- a portion of the amount of base oil e.g. 5 to 25% by weight
- the additives which are particularly oil-soluble but are generally present as a solid under normal conditions
- the temperature is reduced to less than 60°C.
- Liquid and optionally oil-insoluble additives and solids as well as the remaining amount of base oil are then added and mixed by further stirring until the mixture is completely homogeneous.
- the lubricating fluid composition according to the invention is particularly suitable for use in industrial gears (spur gears, helical gears, bevel gears, hypoid and planetary gears) and hydraulic systems, especially those used in the food or feed industry.
- a gearbox is a machine element with which movement variables (e.g. change in force, torque) can be changed. Depending on the design of the gearbox, it is surrounded by a housing and lubricated with a lubricating fluid. Seals are used to prevent leakage of the lubricating fluid. In addition to special design properties, the sealing materials must also be chemically stable against the lubricating fluids used.
- Elastomer compatibility therefore plays an important role in lubricant development. The same also applies to the durability of hydraulic seals that are used to seal hydraulic systems filled with hydraulic oils.
- a lubricating fluid was developed for use as a transmission and hydraulic oil which meets the requirements of DIN 51517-3 (more precisely: the tests for relative volume change, change in Shore A hardness, tensile strength and elongation at break described in DIN ISO 1817). ) as well as the dynamic elastomer compatibility test (Freudenberg test specification FS PLM 111 0008).
- Part of the base oil quantity (5-25%), here the polar oil components namely ester and polyalkylene glycol, are introduced together with the additives that are solid at room temperature and heated to 90 to 110 ° C with continuous stirring until a clear solution is obtained.
- the temperature is reduced to less than 60°C.
- the liquid additives are then added and mixed by further stirring for approx. 15 minutes until the mixture is completely homogeneous. When it cools down further to temperatures below 40°C, the oil can be bottled.
- formulations each contain an additive package.
- PAO 6 polyalphaolefin Spectrasyn 6, ExxonMobil Chemical
- Syn-fluid PAO 6 cSt Chevron Phillips Chemical
- Durasyn 166 Ineos Oligomers
- mPAO 150 Polyalphaolefin, metallocene catalyzed: Spectrasyn Elite 150, ExxonMobil Chemical; Synfluid mPAO 150 cSt, Chevron Phillips Chemical
- Additive package triphenylphosphorothionate, phenolic antioxidant, aminic antioxidant, sorbitan monooleate, N-methyl-N-(1-oxo-9-octadecenyl)glycine, polydimethylsiloxane and benzotriazole derivative, where the sorbitan monooleate is the friction modifier used.
- Table 1 The following methods were used in Tables 1 and 2: kV 40 [mm 2 /s] Kinematic viscosity at 40 ° C determined according to DIN
- the polymer esters and the polyalkylene glycol used are very suitable additives to the PAO oil because they are able to maintain the high viscosity index.
- a higher viscosity index means a higher lubricant film thickness at operating temperature, which contributes to better wear protection.
- a purely PAO-based formulation (Experiment 1) does not offer sufficient elastomer compatibility. NBR elastomers shrink and can lead to leaks. Formulations that contain either polyalkylene glycol (Experiment 2) or esters (Experiment 3) show only slight volume losses. The best result is achieved with a formulation that, in addition to POA, contains both esters and polyalkylene glycol (PAG) (Experiment 4). Furthermore, the purely PAO-based formulation cannot guarantee corrosion protection against salt water despite the same additives.
- test 4 Compared to the ester-containing but polyalkylene glycol-free version (test 3), the air separation capacity in test 4 is not improved. Table 2
- Test series 2 shows that the content of amine-neutralized alkyl phosphates among the additives plays a decisive role in the passing or failing of the important mechanical-dynamic tests.
- a low content (Experiment 5)
- a high gray stain resistance can be achieved even without the addition of polyalkylene glycol.
- damage power level 11 can only be achieved in the FZG test.
- test 6 With a higher content of amine phosphates and in the presence of polyalkylene glycol (test 6), damage force level greater than 12 is achieved in the FZG test, but the micropitting capacity is inadequate.
- the amine phosphate content reduced in experiment 4 can be compensated for by the oil-soluble polyalkylene glycol without having negative effects in the micropitting test.
- the base oil mixture described here supports the anti-corrosion properties and elastomer compatibility of the lubricant and allows for a balanced additive formulation that is suitable for “food grade” lubricants and meets the sometimes conflicting requirements.
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Abstract
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WO2024112665A1 (en) * | 2022-11-23 | 2024-05-30 | The Lubrizol Corporation | Powertrain lubricant containing polyether |
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US5435928A (en) | 1981-09-17 | 1995-07-25 | Akzo Nobel N.V. | Copolymers from α-β-unsaturated dicarboxylic acid esters, and their use |
DE3223694A1 (en) | 1981-09-17 | 1983-03-24 | Akzo Gmbh, 5600 Wuppertal | COPOLYMERS FROM (ALPHA) - (BETA) -UNSATURED DICARBONIC ACID ESTERS PROCESS FOR THE PRODUCTION AND USE THEREOF |
GB9807843D0 (en) | 1998-04-09 | 1998-06-10 | Ethyl Petroleum Additives Ltd | Lubricating compositions |
US6184186B1 (en) | 1999-04-09 | 2001-02-06 | Ethyl Petroleum Additives, Ltd | Lubricating compositions |
US6824671B2 (en) | 2001-05-17 | 2004-11-30 | Exxonmobil Chemical Patents Inc. | Low noack volatility poly α-olefins |
JP5150060B2 (en) | 2006-03-31 | 2013-02-20 | Jx日鉱日石エネルギー株式会社 | Electrical discharge machining oil composition |
JP5633976B2 (en) | 2008-03-31 | 2014-12-03 | エクソンモービル・ケミカル・パテンツ・インク | Production of shear stable high viscosity PAO |
US8530712B2 (en) | 2009-12-24 | 2013-09-10 | Exxonmobil Chemical Patents Inc. | Process for producing novel synthetic basestocks |
CN102766504B (en) | 2011-05-06 | 2015-05-27 | 中国石油天然气股份有限公司 | Pitting corrosion resistant industrial gear lubricant composition |
WO2020078770A1 (en) | 2018-10-16 | 2020-04-23 | Basf Se | Lubricants with a terpolymer made of diester, olefin and acrylate |
DE102020111392A1 (en) * | 2020-04-27 | 2021-10-28 | Klüber Lubrication München Se & Co. Kg | Lubricant composition and its use |
-
2022
- 2022-05-11 DE DE102022111794.4A patent/DE102022111794B3/en active Active
-
2023
- 2023-03-23 WO PCT/DE2023/100225 patent/WO2023217313A1/en unknown
- 2023-03-23 EP EP24173603.2A patent/EP4386069A1/en active Pending
- 2023-03-23 EP EP23714627.9A patent/EP4294897B1/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024112665A1 (en) * | 2022-11-23 | 2024-05-30 | The Lubrizol Corporation | Powertrain lubricant containing polyether |
Also Published As
Publication number | Publication date |
---|---|
WO2023217313A1 (en) | 2023-11-16 |
EP4294897B1 (en) | 2024-05-29 |
EP4386069A1 (en) | 2024-06-19 |
DE102022111794B3 (en) | 2023-03-30 |
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