EP3894526A1 - Lubricating compositions having a mixed dispersant additive package - Google Patents
Lubricating compositions having a mixed dispersant additive packageInfo
- Publication number
- EP3894526A1 EP3894526A1 EP19828514.0A EP19828514A EP3894526A1 EP 3894526 A1 EP3894526 A1 EP 3894526A1 EP 19828514 A EP19828514 A EP 19828514A EP 3894526 A1 EP3894526 A1 EP 3894526A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dispersant
- lubricating composition
- polyisobutylene
- poly
- succinimide
- 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.)
- Withdrawn
Links
- 239000002270 dispersing agent Substances 0.000 title claims abstract description 246
- 239000000203 mixture Substances 0.000 title claims abstract description 226
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 162
- 239000000654 additive Substances 0.000 title claims abstract description 75
- 230000000996 additive effect Effects 0.000 title claims abstract description 56
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 claims abstract description 109
- 229920002367 Polyisobutene Polymers 0.000 claims abstract description 89
- 229960002317 succinimide Drugs 0.000 claims abstract description 55
- 239000003599 detergent Substances 0.000 claims description 61
- 239000003795 chemical substances by application Substances 0.000 claims description 48
- 125000001183 hydrocarbyl group Chemical group 0.000 claims description 44
- 239000003921 oil Substances 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 32
- 238000002485 combustion reaction Methods 0.000 claims description 23
- 239000003963 antioxidant agent Substances 0.000 claims description 17
- 150000002148 esters Chemical class 0.000 claims description 16
- 239000002253 acid Substances 0.000 claims description 12
- 230000003078 antioxidant effect Effects 0.000 claims description 9
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- IMSODMZESSGVBE-UHFFFAOYSA-N 2-Oxazoline Chemical compound C1CN=CO1 IMSODMZESSGVBE-UHFFFAOYSA-N 0.000 claims description 4
- SNCZNSNPXMPCGN-UHFFFAOYSA-N butanediamide Chemical compound NC(=O)CCC(N)=O SNCZNSNPXMPCGN-UHFFFAOYSA-N 0.000 claims description 4
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical compound C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 claims description 4
- SKSNQBIXBYQWGL-UHFFFAOYSA-N butanediamide;4,5-dihydro-1h-imidazole Chemical compound C1CN=CN1.NC(=O)CCC(N)=O SKSNQBIXBYQWGL-UHFFFAOYSA-N 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims 1
- -1 diamides Chemical class 0.000 description 75
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 63
- 229940048053 acrylate Drugs 0.000 description 63
- 235000019198 oils Nutrition 0.000 description 43
- 229920000642 polymer Polymers 0.000 description 39
- 229910052751 metal Inorganic materials 0.000 description 35
- 239000002184 metal Substances 0.000 description 35
- 125000004432 carbon atom Chemical group C* 0.000 description 33
- 239000000178 monomer Substances 0.000 description 30
- 238000006243 chemical reaction Methods 0.000 description 26
- 239000000314 lubricant Substances 0.000 description 22
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 20
- 229920001577 copolymer Polymers 0.000 description 19
- 229920000768 polyamine Polymers 0.000 description 19
- 150000001875 compounds Chemical class 0.000 description 18
- 229920000098 polyolefin Polymers 0.000 description 18
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical group CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 17
- 125000000217 alkyl group Chemical group 0.000 description 17
- 150000001412 amines Chemical class 0.000 description 17
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Natural products OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 16
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 16
- 229910052698 phosphorus Inorganic materials 0.000 description 16
- 239000011574 phosphorus Substances 0.000 description 16
- 229910052725 zinc Inorganic materials 0.000 description 16
- 239000011701 zinc Substances 0.000 description 16
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 15
- 229920000193 polymethacrylate Polymers 0.000 description 15
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 14
- 239000011572 manganese Substances 0.000 description 14
- 239000004721 Polyphenylene oxide Substances 0.000 description 13
- 229920001400 block copolymer Polymers 0.000 description 13
- 229920000570 polyether Polymers 0.000 description 13
- 230000008569 process Effects 0.000 description 13
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 13
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical group [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 12
- 150000001336 alkenes Chemical class 0.000 description 12
- 239000011575 calcium Substances 0.000 description 12
- 229910052791 calcium Inorganic materials 0.000 description 12
- 239000000047 product Substances 0.000 description 12
- 239000004034 viscosity adjusting agent Substances 0.000 description 12
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 11
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical class C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 11
- 238000012360 testing method Methods 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 10
- 238000009472 formulation Methods 0.000 description 10
- 239000000446 fuel Substances 0.000 description 10
- 239000011777 magnesium Substances 0.000 description 10
- 229910052749 magnesium Inorganic materials 0.000 description 10
- 239000003607 modifier Substances 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 10
- 150000003839 salts Chemical class 0.000 description 10
- 239000000344 soap Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 10
- 229910052717 sulfur Inorganic materials 0.000 description 10
- 125000001931 aliphatic group Chemical group 0.000 description 9
- 150000004982 aromatic amines Chemical class 0.000 description 9
- 125000003118 aryl group Chemical group 0.000 description 9
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 description 9
- 229960001860 salicylate Drugs 0.000 description 9
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 8
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 8
- 239000005977 Ethylene Substances 0.000 description 8
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 8
- 239000002585 base Substances 0.000 description 8
- 125000005266 diarylamine group Chemical group 0.000 description 8
- 239000003112 inhibitor Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 7
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 7
- 235000010338 boric acid Nutrition 0.000 description 7
- 229960002645 boric acid Drugs 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 150000002989 phenols Chemical class 0.000 description 7
- 229920013639 polyalphaolefin Polymers 0.000 description 7
- 239000011593 sulfur Substances 0.000 description 7
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 6
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 6
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 6
- 125000003277 amino group Chemical group 0.000 description 6
- 239000002199 base oil Substances 0.000 description 6
- 239000004327 boric acid Substances 0.000 description 6
- 230000003749 cleanliness Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 239000010705 motor oil Substances 0.000 description 6
- 229920005862 polyol Polymers 0.000 description 6
- 125000001424 substituent group Chemical group 0.000 description 6
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- GLOYGJPNNKTDIG-UHFFFAOYSA-N SC=1N=NSC=1S Chemical class SC=1N=NSC=1S GLOYGJPNNKTDIG-UHFFFAOYSA-N 0.000 description 5
- 150000008064 anhydrides Chemical class 0.000 description 5
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 5
- 239000000460 chlorine Substances 0.000 description 5
- 150000001993 dienes Chemical class 0.000 description 5
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 150000002430 hydrocarbons Chemical class 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 5
- 150000002924 oxiranes Chemical class 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 5
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 150000003609 titanium compounds Chemical class 0.000 description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 4
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 4
- 125000003158 alcohol group Chemical group 0.000 description 4
- 150000001298 alcohols Chemical class 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 4
- 125000005842 heteroatom Chemical group 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 239000005078 molybdenum compound Substances 0.000 description 4
- 150000002752 molybdenum compounds Chemical class 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 150000003077 polyols Chemical class 0.000 description 4
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 4
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 4
- 229910052727 yttrium Inorganic materials 0.000 description 4
- WBYWAXJHAXSJNI-VOTSOKGWSA-M .beta-Phenylacrylic acid Natural products [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 3
- 238000011925 1,2-addition Methods 0.000 description 3
- DKCPKDPYUFEZCP-UHFFFAOYSA-N 2,6-di-tert-butylphenol Chemical compound CC(C)(C)C1=CC=CC(C(C)(C)C)=C1O DKCPKDPYUFEZCP-UHFFFAOYSA-N 0.000 description 3
- OFNISBHGPNMTMS-UHFFFAOYSA-N 3-methylideneoxolane-2,5-dione Chemical compound C=C1CC(=O)OC1=O OFNISBHGPNMTMS-UHFFFAOYSA-N 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- WBYWAXJHAXSJNI-SREVYHEPSA-N Cinnamic acid Chemical compound OC(=O)\C=C/C1=CC=CC=C1 WBYWAXJHAXSJNI-SREVYHEPSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 239000004435 Oxo alcohol Substances 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 239000008186 active pharmaceutical agent Substances 0.000 description 3
- 125000002252 acyl group Chemical group 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical class C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 3
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 125000002837 carbocyclic group Chemical group 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 150000001735 carboxylic acids Chemical class 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 229930016911 cinnamic acid Natural products 0.000 description 3
- 235000013985 cinnamic acid Nutrition 0.000 description 3
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 150000004665 fatty acids Chemical class 0.000 description 3
- 239000001530 fumaric acid Substances 0.000 description 3
- 150000002646 long chain fatty acid esters Chemical class 0.000 description 3
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- LVZUNTGFCXNQAF-UHFFFAOYSA-N n-nonyl-n-phenylaniline Chemical compound C=1C=CC=CC=1N(CCCCCCCCC)C1=CC=CC=C1 LVZUNTGFCXNQAF-UHFFFAOYSA-N 0.000 description 3
- 125000004433 nitrogen atom Chemical group N* 0.000 description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 3
- 239000002530 phenolic antioxidant Substances 0.000 description 3
- 229920000058 polyacrylate Polymers 0.000 description 3
- 150000003254 radicals Chemical class 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- 150000003902 salicylic acid esters Chemical class 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 150000003871 sulfonates Chemical class 0.000 description 3
- 125000004434 sulfur atom Chemical group 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- 229920001897 terpolymer Polymers 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 150000005671 trienes Chemical class 0.000 description 3
- JSPLKZUTYZBBKA-UHFFFAOYSA-N trioxidane Chemical compound OOO JSPLKZUTYZBBKA-UHFFFAOYSA-N 0.000 description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 3
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 2
- ZGEGCLOFRBLKSE-UHFFFAOYSA-N 1-Heptene Chemical compound CCCCCC=C ZGEGCLOFRBLKSE-UHFFFAOYSA-N 0.000 description 2
- VQOXUMQBYILCKR-UHFFFAOYSA-N 1-Tridecene Chemical compound CCCCCCCCCCCC=C VQOXUMQBYILCKR-UHFFFAOYSA-N 0.000 description 2
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1-dodecene Chemical compound CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 2
- ADOBXTDBFNCOBN-UHFFFAOYSA-N 1-heptadecene Chemical compound CCCCCCCCCCCCCCCC=C ADOBXTDBFNCOBN-UHFFFAOYSA-N 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- PJLHTVIBELQURV-UHFFFAOYSA-N 1-pentadecene Chemical compound CCCCCCCCCCCCCC=C PJLHTVIBELQURV-UHFFFAOYSA-N 0.000 description 2
- HFDVRLIODXPAHB-UHFFFAOYSA-N 1-tetradecene Chemical compound CCCCCCCCCCCCC=C HFDVRLIODXPAHB-UHFFFAOYSA-N 0.000 description 2
- DCTOHCCUXLBQMS-UHFFFAOYSA-N 1-undecene Chemical compound CCCCCCCCCC=C DCTOHCCUXLBQMS-UHFFFAOYSA-N 0.000 description 2
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 2
- QVXGKJYMVLJYCL-UHFFFAOYSA-N 2,3-di(nonyl)-N-phenylaniline Chemical compound C(CCCCCCCC)C=1C(=C(C=CC1)NC1=CC=CC=C1)CCCCCCCCC QVXGKJYMVLJYCL-UHFFFAOYSA-N 0.000 description 2
- WXTMDXOMEHJXQO-UHFFFAOYSA-N 2,5-dihydroxybenzoic acid Chemical compound OC(=O)C1=CC(O)=CC=C1O WXTMDXOMEHJXQO-UHFFFAOYSA-N 0.000 description 2
- AKEUNCKRJATALU-UHFFFAOYSA-N 2,6-dihydroxybenzoic acid Chemical compound OC(=O)C1=C(O)C=CC=C1O AKEUNCKRJATALU-UHFFFAOYSA-N 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 2
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 description 2
- DPBJAVGHACCNRL-UHFFFAOYSA-N 2-(dimethylamino)ethyl prop-2-enoate Chemical compound CN(C)CCOC(=O)C=C DPBJAVGHACCNRL-UHFFFAOYSA-N 0.000 description 2
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 2
- 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 2
- KSSJBGNOJJETTC-UHFFFAOYSA-N COC1=C(C=CC=C1)N(C1=CC=2C3(C4=CC(=CC=C4C=2C=C1)N(C1=CC=C(C=C1)OC)C1=C(C=CC=C1)OC)C1=CC(=CC=C1C=1C=CC(=CC=13)N(C1=CC=C(C=C1)OC)C1=C(C=CC=C1)OC)N(C1=CC=C(C=C1)OC)C1=C(C=CC=C1)OC)C1=CC=C(C=C1)OC Chemical compound COC1=C(C=CC=C1)N(C1=CC=2C3(C4=CC(=CC=C4C=2C=C1)N(C1=CC=C(C=C1)OC)C1=C(C=CC=C1)OC)C1=CC(=CC=C1C=1C=CC(=CC=13)N(C1=CC=C(C=C1)OC)C1=C(C=CC=C1)OC)N(C1=CC=C(C=C1)OC)C1=C(C=CC=C1)OC)C1=CC=C(C=C1)OC KSSJBGNOJJETTC-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241000640882 Condea Species 0.000 description 2
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
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- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
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- 125000001117 oleyl 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])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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- VGTPKLINSHNZRD-UHFFFAOYSA-N oxoborinic acid Chemical compound OB=O VGTPKLINSHNZRD-UHFFFAOYSA-N 0.000 description 1
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- 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
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
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- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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- CQRYARSYNCAZFO-UHFFFAOYSA-N salicyl alcohol Chemical compound OCC1=CC=CC=C1O CQRYARSYNCAZFO-UHFFFAOYSA-N 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 125000000467 secondary amino group Chemical group [H]N([*:1])[*:2] 0.000 description 1
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- 238000010998 test method Methods 0.000 description 1
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical group CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 1
- IAQRGUVFOMOMEM-ONEGZZNKSA-N trans-but-2-ene Chemical compound C\C=C\C IAQRGUVFOMOMEM-ONEGZZNKSA-N 0.000 description 1
- 238000005809 transesterification reaction Methods 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
- 239000013638 trimer Substances 0.000 description 1
- WMYJOZQKDZZHAC-UHFFFAOYSA-H trizinc;dioxido-sulfanylidene-sulfido-$l^{5}-phosphane Chemical class [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S WMYJOZQKDZZHAC-UHFFFAOYSA-H 0.000 description 1
- 125000002948 undecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
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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
- C10M149/00—Lubricating compositions characterised by the additive being a macromolecular compound containing nitrogen
- C10M149/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
- C10M133/52—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of 30 or more 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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/041—Mixtures of base-materials and additives the additives being macromolecular compounds only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/048—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution, non-macromolecular and macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/003—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/102—Aliphatic fractions
- C10M2203/1025—Aliphatic fractions used as base material
-
- C—CHEMISTRY; METALLURGY
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
- C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/04—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing aromatic monomers, e.g. styrene
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/34—Esters having a hydrocarbon substituent of thirty or more carbon atoms, e.g. substituted succinic acid derivatives
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- 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
- C10M2215/28—Amides; Imides
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/30—Heterocyclic compounds
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/06—Macromolecular compounds obtained by functionalisation op polymers with a nitrogen containing compound
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/046—Overbasedsulfonic acid salts
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
- C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
- C10M2219/087—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof, e.g. sulfurised phenols
- C10M2219/089—Overbased salts
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- 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
- C10M2223/045—Metal containing thio derivatives
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/04—Molecular weight; Molecular weight distribution
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—Pour-point; Viscosity index
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/04—Detergent property or dispersant property
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/52—Base number [TBN]
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/68—Shear stability
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
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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
- C10N2040/25—Internal-combustion engines
- C10N2040/255—Gasoline engines
Definitions
- the instant disclosure generally relates to lubricating compositions having an oil of lubricating viscosity and a mixed dispersant additive package.
- the mixed dispersant additive package includes an acylated poly(l-olefm)-based dispersant and an acylated polyisobutylene-based dispersant.
- Dispersants have been employed in lubricant and fuel formulations to provide protection against and to stabilize dirt and sludge that accumulate in the formulations during ordinary use.
- Dispersants typically have hydrophilic heads and hydrophobic tails and exhibit the properties of surfactants.
- the hydrophilic heads have an affinity for dirt and sludge, while the hydrophobic tails have an affinity for the base stocks of the lubricant and fuel formulations.
- a common class of dispersants used in lubricant or fuel formulations is prepared by functionalizing polyisobutylene (PD3) with maleic anhydride, followed by reaction with polyamines. These dispersants work well for typical lubricant and fuel formulations.
- New lubricating compositions are formulated to meet higher automobile fuel economy standards, longer oil drain intervals, and greater operating severity. This need may require the use of even higher levels of dispersants and/or lower lubricant base stock viscosity.
- the use of higher levels of PIB-based dispersants may significantly increase the viscosity of lubricant compositions and render it difficult to attain lower motor oil viscosity grades, e.g., 0W-20 and 0W-30. Lower viscosity grades for motor oil are particularly important in meeting fuel economy guidelines.
- a lubricant blend including one or more lubricant stocks and one or more dispersants chosen from a polyalphaolefin succinimide, a polyalphaolefin succinamide, a polyalphaolefin acid ester, a polyalphaolefin oxazoline, a polyalphaolefin imidazoline, a polyalphaolefin succinamide imidazoline, and combinations thereof, present at 2 to 20 wt % based on the total weight of the blend.
- dispersants chosen from a polyalphaolefin succinimide, a polyalphaolefin succinamide, a polyalphaolefin acid ester, a polyalphaolefin oxazoline, a polyalphaolefin imidazoline, a polyalphaolefin succinamide imidazoline, and combinations thereof, present at 2 to 20 wt % based on the total weight of the blend.
- PAQ-based dispersants may help formulate a lubricating composition at lower viscosity over a PIB-based dispersant
- P AO-based dispersants do not provide the same level of deposit control and overall cleanliness of a lubricating composition as a PIB-based dispersant.
- the instant disclosure relates to a lubricating composition having a mixed dispersant additive package.
- the lubricating composition includes an oil of lubricating viscosity and from 2 to 20 wd % of a dispersant additive package where the mixed dispersant additive package includes an an acylated poly(l-olefm)-based dispersant, where the poly(l -olefin) is comprised of at least 75 mole percent of a C6 to C18 hydrocarbyl and a polyisobutylene-based dispersant.
- the ratio of the acylated poly(l-olefm)-based dispersant to the polyisobutylene succinimide dispersant in the lubricating composition is from 3 : 1 to 1 :3, or 2: 1 to 1 :2, or 3 :2 to 2:3.
- the instant disclosure further relates to a lubricating composition having an oil of lubricating viscosity and a dispersant additive package
- the mixed dispersant additive package includes from 2 to 8 wd % of an acylated poly(l-olefin)-based dispersant, where the poly(l -olefin) is comprised of at least 75 mole percent of a C6 to C18 hydrocarbyl and from 1 to 6 wd % of a polyisobutylene-based dispersant, where the ratio of the acylated poly(l- olefin)-based dispersant to the polyisobutylene succinimide dispersant in the lubricating composition is from 2: 1 to 1 :2.
- the instant disclosure further relates to a lubricating composition having an oil of lubricating viscosity and a dispersant additive package
- the mixed dispersant additive package includes from 2 to 8 wt % of polydecene succinimide dispersant and from 1 to 6 wt % of a polyisobutylene-based dispersant, where the ratio of the acylated poly(l-olefm)-based dispersant to the polyisobutylene succinimide dispersant, where the ratio of polydecene succinimide dispersant to the polyisobutylene dispersant is from 2: 1 to 1 :2.
- the instant disclosure further relates to a lubricating composition having an oil of lubricating viscosity and a dispersant additive package
- the mixed dispersant additive package includes from 2 to 8 wt % of polydecene succinimide dispersant and from 1 to 6 wt % of a polyisobutylene-based dispersant, where the ratio of the acylated poly(l-olefm)-based dispersant to the polyisobutylene succinimide dispersant, where the ratio of polydecene succinimide dispersant to the polyisobutylene dispersant is from 2: 1 to 1 :2 and the lubricating composition has a has a kinematic viscosity at 100°C from 6 to 10 cSt (mm2/s) and a kinematic viscosity at 40°C from 40 to 47 cSt (mm2/s) and a high shear viscosity (HTHS) of less than 3
- the instant disclosure further relates to method of lubricating an internal combustion engine by supplying to an internal combustion engine a lubricating composition including an oil of lubricating viscosity and from 2 to 20 wt % of a dispersant additive package where the mixed dispersant additive package includes an an acylated poly(l-olefm)-based dispersant, where the poly(l -olefin) is comprised of at least 75 mole percent of a C6 to C18 hydrocarbyl and a polyisobutylene-based dispersant.
- the ratio of the acylated poly(l-olefm)- based dispersant to the polyisobutylene succinimide dispersant in the lubricating composition is from 3 : 1 to 1 :3, or 2: 1 to 1 :2, or 3 :2 to 2:3.
- the instant disclosure relates to a method of lubricating an internal combustion engine by supplying to an internal combustion engine a lubricating composition including an oil of lubricating viscosity and from 2 to 8 wt % of an acylated poly(l-olefm)-based dispersant, where the poly(l-olefm) is comprised of at least 75 mole percent of a C6 to Cl 8 hydrocarbyl and from 1 to 6 wt % of a polyisobutylene-based dispersant, where the ratio of the acylated poly(l-olefm)-based dispersant to the polyisobutylene succinimide dispersant in the lubricating composition is from 2: 1 to 1 :2.
- the instant disclosure relates to a method of lubricating an internal combustion engine by supplying to an internal combustion engine a lubricating composition including an oil of lubricating viscosity and a dispersant additive package where the mixed dispersant additive package includes from 2 to 8 wt % of polydecene succinimide dispersant and from 1 to 6 wt % of a polyisobutylene-based dispersant, where the ratio of the acylated poly(l-olefm)-based dispersant to the polyisobutylene succinimide dispersant, where the ratio of polydecene succinimide dispersant to the polyisobutylene dispersant is from 2: 1 to 1 :2.
- the instant disclosure relates to a method of lubricating an internal combustion engine by supplying to an internal combustion engine a lubricating composition including an oil of lubricating viscosity and a dispersant additive package where the mixed dispersant additive package includes from 2 to 8 wt % of polydecene succinimide dispersant and from 1 to 6 wt % of a polyisobutylene-based dispersant, where the ratio of the acylated poly(l-olefm)-based dispersant to the polyisobutylene succinimide dispersant, where the ratio of polydecene succinimide dispersant to the polyisobutylene dispersant is from 2: 1 to 1 :2 and the lubricating composition has a has a kinematic viscosity at 100°C from 6 to 10 cSt (mm2/s) and a kinematic viscosity at 40°C from 40 to 47 cSt (
- Lubricating compositions disclosed herein may include an oil of lubricating viscosity and from 2 to 20 wt % of a dispersant additive package including an acylated poly(l-olefm)-based dispersant, where the 1-olefin is comprised of at least 75 mole percent of a C 6 to Cis hydrocarbyl, and an acylated polyisobutylene-based dispersant.
- the lubricating composition may include one or more additional additives, as disclosed herein. Oils of Lubricating Viscosity
- an oil of lubricating viscosity may include natural and synthetic oils, oil derived from hydrocracking, hydrogenation, and hydrofmishing, unrefined, refined, re refined oils or mixtures thereof.
- a more detailed description of unrefined, refined and re refined oils is provided in International Publication W02008/147704, paragraphs [0054] to [0056] (a similar disclosure is provided in US Patent Application 2010/197536, see [0072] to [0073]).
- a more detailed description of natural and synthetic lubricating oils is described in paragraphs [0058] to [0059] respectively of W02008/147704 (a similar disclosure is provided in US Patent Application 2010/197536, see [0075] to [0076]).
- Synthetic oils may also be produced by Fischer-Tropsch reactions and typically may be hydroisomerised Fischer-Tropsch hydrocarbons or waxes. In one embodiment oils may be prepared by a Fischer-Tropsch gas-to-liquid synthetic procedure as well as other gas-to-liquid oils.
- Suitable oils may be produced from biological, i.e. natural, sources or by bio engineered processes. This includes both natural occurring oils, such as vegetable oils and triglyceride oils that may be further refined or purified by standard processes, and those oils that may be derived by biological conversion of a natural chemical into oil directly or by bio formation of building block pre-cursor molecules capable of being further converted into oil by known processes.
- Oils of lubricating viscosity may also be defined as specified in April 2008 version of "Appendix E - API Base Oil Interchangeability Guidelines for Passenger Car Motor Oils and Diesel Engine Oils", section 1.3 Sub-heading 1.3. "Base Stock Categories”.
- the API Guidelines are also summarised in US Patent US 7,285,516 (see column 11, line 64 to column 12, line 10), which are incorporated herein by reference.
- the oil of lubricating viscosity may be an API Group I to IV mineral oil, an ester or a synthetic oil, or mixtures thereof. In one embodiment the oil of lubricating viscosity may be an API Group II, Group III, Group IV mineral oil, an ester or a synthetic oil, or mixtures thereof. [0023] The amount of the oil of lubricating viscosity present is typically the balance remaining after subtracting from 100 wt % the sum of the amount of the dispersant additive package according to the instant disclosure and additional, if any, additives.
- the lubricating composition may be in the form of a concentrate and/or a fully formulated lubricant. If the lubricating composition of the instant disclosure (comprising the dispersant additive package disclosed herein and, optionally, other additives) is in the form of a concentrate which may be combined with additional oil to form, in whole or in part, a finished lubricant, the ratio of these additives to the oil of lubricating viscosity and/or to diluent oil include the ranges of 1 :99 to 99: 1 by weight, or 80:20 to 10:90 by weight.
- the lubricating composition of the invention comprises at least 50 wt %, or at least 60 wt %, or at least 70 wt %, or at least 80 wt % of an oil of lubricating viscosity.
- the lubricating composition can include a base oil having a kinematic viscosity measured at 100 °C of 2.4 m 2 /s to 6.4 m 2 /s.
- the kinematic viscosity is from 4.0 m 2 /s to 5.0 m 2 /s or from 5.2 m 2 /s to 5.8 m 2 /s or from 6.0 m 2 /s to 6.5 m 2 /s.
- the kinematic viscosity is 6.2 m 2 /s or 5.6 m 2 /s or 4.6 m 2 /s.
- Lubricating composition disclosed herein includes a dispersant additive package having a first dispersant comprising an acylated poly(l-olefm)-based dispersant and a second dispersant comprising an acylated polyisobutylene-based dispersant.
- the first dispersant comprises an acylated poly(l-olefm)-based dispersant.
- the first dispersant is prepared from a poly(l -olefin).
- Poly(l -olefin)’ s useful as feedstocks in forming the first dispersant are those derived from oligomerization or polymerization of C 6 to Ci 8 1 -olefins.
- Such 1 -olefins include 1 -hexene, 1-heptene, 1-octene, 1-nonene, 1-decene, 1-undecene, 1-dodecene, 1-tridecene, 1-tetradecene, 1-pentadecene, hexadecane, heptadecene, 1-octadecene, and mixtures thereof.
- Feedstocks containing a mixture of two or more of the foregoing monomers as well as other hydrocarbons are typically employed when manufacturing PAOs commercially.
- the PAO may take the form of dimers, trimers, tetramers, polymers, and the like.
- the a-olefm includes 1-decene.
- the poly(l-olefm) includes at least 75 mole percent of a C 6 to Ci 8 hydrocarbyl.
- the C 6 to Ci 8 hydrocarbyl is a C 6 to Cis 1 -olefin.
- the poly(l -olefin) includes at least 80 mole percent of a C 6 to Cis hydrocarbyl.
- the poly(l -olefin) includes at least 85 mole percent of a C 6 to Cis hydrocarbyl.
- the poly(l -olefin) includes at least 90 mole percent of a C 6 to Cis hydrocarbyl.
- the poly(l -olefin) includes at least 100 mole percent of a C 6 to Cis hydrocarbyl.
- the 1 -olefin is 1-decene.
- the poly(l -olefin) includes at least 75 mole percent of a Cs to Co hydrocarbyl. In another embodiment, the poly(l -olefin) includes at least 80 mole percent of a C 8 to Ci2 hydrocarbyl. In yet another embodiment, the poly(l -olefin) includes at least 85 mole percent of a Cx to C12 hydrocarbyl. In another embodiment, the poly(l -olefin) includes at least 90 mole percent of a Cx to C12 hydrocarbyl. In one embodiment, the poly(l -olefin) includes at least 100 mole percent of a Cs to C12 hydrocarbyl.
- the poly(l- olefin) includes at least 75 mole percent of a Cx to C12 1 -olefin. In another embodiment, the poly(l -olefin) includes at least 75 mole percent of 1-decene.
- the poly(l -olefin) used to prepare the first dispersant may have a M n (number- average molecular weight) of 400 to 10,000.
- the poly(l -olefin) can have a M n of 500 to 9,000.
- the poly(l -olefin) has a M n of 500 to 7,500.
- the poly(l -olefin) has a M n of 500 to 6,000.
- the poly(l - olefin) has a M n of 500 to 4,400.
- the poly(l -olefin) has a M n of 400 to 1,000.
- the poly(l -olefin) has a M n of 400 to 800.
- the first dispersant can be selected from a polyalphaolefm succinimide, a polyalphaolefm succinamide, a polyalphaolefm acid ester, a polyalphaolefm oxazoline, a polyalphaolefm imidazoline, a polyalphaolefm succinamide imidazoline, and combinations thereof.
- the first dispersant is a polyalphaolefm succinimide.
- the first dispersant is a polydecene succimide.
- the first dispersant may also be described as having a total base number (“TBN”) calculated on an oil-free basis.
- TBN are herein described on an oil-free basis and are defined as KOH/g.
- the TBN of the first dispersant can be in a range of from 3 to 100. In another embodiment, the TBN of the first dispersant is from 5 to 20. In yet another embodiment, the TBN of the first dispersant is from 10 to 60.
- the polyalphaolefm suitable for use in first dispersant can be prepared by oligomerization or polymerization of C 6 to Cix 1 -olefins in the presence of an activated metallocene catalyst.
- an activated metallocene catalyst Such a process is described in, for example, WO 2007/011462 Al, WO 2007011459 Al, WO 2007/011973 Al, and U.S. Patent Application Publication No. 2012/0264665 all of which are incorporated herein by reference.
- the polyalphaolefms described herein may be reacted with an acylating agent, i.e. an ethyl enically unsaturated carbonyl compound, to form an acylated poly(l -olefin) which may be further fumctionalized with an amine or alcohol to form a suitable dispersant.
- acylating agents include maleic anhydride or a reactive equivalent thereof (such as an acid or ester), fumaric acid, itaconic acid, itaconic anhydride, citraconic acid, citaconic anhydride, and cinnamic acid as well as other ethylenically unsaturated acids such as acrylic or methacrylic acid; and their reactive equivalents.
- the polyalphaolefm may be reacted with maleic anhydride (MA) to form a polyalphaolefm succinic anhydride (PAO-SA).
- the ratio of the polyalphaolefm to maleic anhydride (“succination ratio”) can be from 1 : 1 to 1 :2.
- the succination ratio is 1 : 1 (“monosuccination”).
- the succination ratio is 1 :2. It is understood that mixtures of mono-succinated polyolefins and di- succinated polyolefins will provide a succination ratio between 1 : 1 and 1 :2.
- the succination ratio may be 1 : 1 to 1 : 1.5, or 1 : 1 to 1.3.
- acylated product can be expressed as a number between one and two, where a conversion of 1 would indicate that, of the polymer that reacted, it only reacted with one mole of maleic anhydride (to form a mono-succan).
- An acylating agent with a conversion of 2 would indicate that two equivalents of maleic anhydride were added per reacted polymer chain (to form a di-succan).
- the vast majority of manufactured acylating agents contain a mixture of mono and di-succan, such that the conversion ratio can be represented as a number between 1 and 2, such as 1.2, 1,5 or 1.7.
- the higher the conversion number the higher the percentage of disuccan is present in the mixture.
- the conversion calculation excludes the unreacted polymer. This conversion represents the average number of times that each polymer chain has reacted with the acylating agent.
- the PAO-SA can be subsequently reacted with one or more of polyamines, aminoalcohols, and alcohols/polyols to form polyalphaolefm succinimide, polyalphaolefm succinamides, including diamides, polyalphaolefm succinimide/acid, polyalphaolefm succinimide ester, polyalphaolefm succinic diesters, polyalphaolefm succinic diacids, and polyalphaolefm succinic acid ester.
- Suitable amine and alcohol compounds are described in more detail below.
- polyalphaolefm-based dispersants are also contemplated, such as polyalphaolefm oxazoline, polyalphaolefm imidazoline, polyalphaolefm succinimide imdazoline, and mixtures thereof.
- PAO species contemplated in this disclosure are further described in U.S. 2012/0264665, the sections describing such species is hereby incorporated herein by reference.
- the poly(l -olefin) dispersant may be post-treated by conventional methods by a reaction with any of a variety of agents.
- agents such as boric acid, urea, thiourea, dimercaptothiadiazoles, carbon disulphide, aldehydes, ketones, carboxylic acids such as terephthalic acid, hydrocarbon- substituted succinic anhydrides, maleic anhydride, nitriles, epoxides, and phosphorus compounds.
- the post-treated dispersant is borated.
- the post-treated dispersant is reacted with dimercaptothiadiazoles.
- the post-treated dispersant is reacted with phosphoric or phosphorous acid. In one embodiment, the post-treated dispersant is reacted with terephthalic acid and boric acid (as described in US Patent Application US2009/0054278, which is incorporated herein by reference in its entirety).
- the dispersant additive package also includes a second dispersant.
- the second dispersant includes a polyisobutylene succinimide dispersant.
- the polyisobutylene (“PIB”) succinimide dispersant can be a“conventional” PIB or a high vinylidene PIB. The difference between a conventional polyolefin and a high vinylidene polyolefin can be illustrated by reference to the production of PIB.
- isobutylene is polymerized in the presence of AlCh to produce a mixture of polymers comprising predominantly tri substituted olefin (III) and tetrasubstituted olefin (IV) end groups, with only a very small amount (for instance, less than 20 percent) of chains containing a terminal vinylidene group (I).
- isobutylene is polymerized in the presence of BF 3 catalyst to produce a mixture of polymers comprising predominantly (for instance, at least 70 percent) terminal vinylidene groups, with smaller amounts of tetrasubstituted end groups and other structures.
- the polyisobutylene-based dispersant is a conventional polyisobutylene-based dispersant.
- the polyisobutylene-based dispersant is a high or mid vinylidene succinimide dispersant.
- the polyisobutylene-based dispersant used herein is generally known in the art.
- the polyisobutylene-based acylating agent may be prepared/obtained/obtainable from reaction with maleic anhydride by an“ene” or“thermal” reaction.
- The“ene” reaction mechanism and general reaction conditions are summarized in“Maleic Anhydride”, pages, 147-149, Edited by B. C. Trivedi and B. C. Culbertson and Published by Plenum Press in 1982.
- the polyisobutylene-based dispersant prepared by a process that includes an“ene” reaction includes a dispersant having a carbocyclic ring present on less than 50 mole %, or 0 to less than 30 mole %, or 0 to less than 20 mole %, or 0 mole % of the dispersant molecules.
- The“ene” reaction may have a reaction temperature of 180° C. to less than 300° C., or 200° C. to 250° C., or 200° C, to 220° C,
- the polyisobutylene-based acylating agent may also be obtained/obtainable from a chlorine-assisted process, often involving Diels-Alder chemistry, leading to formation of carbocyclic linkages.
- the process is known to a person skilled in the art.
- the chlorine-assisted process may produce an acylating agent having a carbocyclic ring present on 50 mol % or more, or 60 to 100 mol % of the molecules. Both the thermal and chlorine-assisted processes are described in greater detail in U.S. Pat. No. 7,615,521, columns 4-5 and preparative examples A and B.
- the polyisobutylene-based acyiating agent may also be prepared/obtained/obtainable from a free radical process, wherein the acyiating agent is reacted with polyisobutylene in the presence of a free radical initiator.
- Free radical processes of this sort are well known in the art and may be carried out in the presence of additional alpha-olefin.
- the polyisobutylene-based acyiating agent can be obtained from reacting polyisobutylene with an acyiating agent, i.e., an ethylenically unsaturated carbonyl compound, to form an acylated polyisobutylene which may be further functionalized with an amine or alcohol to form a suitable dispersant.
- an acyiating agent i.e., an ethylenically unsaturated carbonyl compound
- Suitable acyiating agents include maleic anhydride or a reactive equivalent thereof (such as an acid or ester), fumaric acid, itaconic acid, itaconic anhydride, citraconic acid, citaconic anhydride, and cinnamic acid as well as other ethylenically unsaturated acids such as acrylic or methacrylic acid; and their reactive equivalents.
- polyisobutylene may be reacted with maleic anhydride to form acylated product with a conversion between 1 and 2.
- the monosuccan is reacted with an amine so that the intended product comprises a mixture wherein all of the anhydride present in the acyiating agent has been converted to imide.
- the polyisobutylene-based dispersant may have a carbonyl to nitrogen ratio (CO:N ratio) of 5: 1 to 1 : 10, 2: 1 to 1 : 10, or 2: 1 to 1 :5, or 2: 1 to 1 :2.
- the dispersant may have a CO:N ratio of 2: 1 to 1 : 10, or 2: 1 to 1 :5, or 2: 1 to 1 :2, or 1 : 1.4 to 1 :0.6.
- the polyisobutylene-based dispersant may also be post-treated by conventional methods by a reaction with any of a variety of agents.
- agents such as boric acid, urea, thiourea, dimercaptothiadiazoles, carbon disulphide, aldehydes, ketones, carboxylic acids such as terephthalic acid, hydrocarbon-substituted succinic anhydrides, maleic anhydride, nitriles, epoxides, and phosphorus compounds.
- the post-treated dispersant is borated.
- the post-treated dispersant is reacted with dimercaptothiadiazoles.
- the post-treated dispersant is reacted with phosphoric or phosphorous acid. In one embodiment, the post- treated dispersant is reacted with terephthalic acid and boric acid (as described in US Patent Application US2009/0054278).
- the polyisobutylene-based dispersant may be borated using one or more of a variety of agents selected from the group consisting of the various forms of boric acid (including metaboric acid, HBQ , orthoboric acid, H3BO3, and tetraboric acid, 1 l -B :() ⁇ ). boric oxide, boron trioxide, and alkyl borates.
- the berating agent is boric acid which may be used alone or in combination with other borating agents. Methods of preparing borated dispersants are known in the art.
- the borated dispersant may be prepared in such a way that they contain 0.1 weight % to 2.5 weight% boron, or 0.1 weight % to 2,0 weight % boron or 0.2 to 1.5 weight % boron or 0.3 to 1.0 weight % boron.
- the isobutylene polymer can have a number average molecular weight (Mn) of from 500 to 3,000. In another embodiment, the Polyisobutylene-based dispersant has a Mn of from 700 to 2,000. In one embodiment, the isobutylene polymer has a Mn of from 900 to 1,500. In another embodiment, the isobutylene polymer has a Mn of from 1,000 to 1,200.
- Mn number average molecular weight
- the polyisobutylene-based dispersant for use as the second dispersant can further be described as having a TBN.
- the Polyisobutylene-based dispersant has a TBN of from 5 to 50.
- the Polyisobutylene-based dispersant has a TBN of from 10 to 40.
- the Polyisobutylene-based dispersant has a TBN of from 15 to 30.
- the polyolefin-based dispersant and the polyisobutylene-based dispersant may be a derivative of an aliphatic polyamine, or mixtures thereof.
- the aliphatic polyamine may be aliphatic polyamine such as an ethylenepolyamine, a propylenepolyamine, a butylenepolyamine, or mixtures thereof.
- the aliphatic polyamine may be ethylenepolyamine.
- the aliphatic polyamine may be selected from the group consisting of ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, pentaethylenehexamine, polyamine still bottoms, and mixtures thereof.
- the polyolefin-based dispersant and the polyisobutylene-based dispersant may be derivatives of an aromatic amine, an aromatic polyamine, or mixtures thereof.
- the aromatic amine may be 4-aminodiphenyl amine (ADPA) (also known as N-phenylphenylenediamine), derivatives of ADPA (as described in United States Patent Publications 2011/0306528 and 2010/0298185), a nitroaniline, an aminocarbazole, an amino-indazolinone, an aminopyrimidine, 4-(4-nitrophenylazo)aniline, or combinations thereof.
- the first or second dispersant is a derivative of an aromatic amine wherein the aromatic amine has at least three non-continuous aromatic rings.
- the polyamine may contain at least one sterically hindered amine group.
- the polyamine contains a primary amino group for reaction with the acylating agent and at least one additional sterically hindered amine.
- the polyamine contains a terminal primary amine moiety that reacts with the polyolefin substituted acylating agent and at least one sterically hindered amine, one of which is a terminal head group.
- terminal head group is meant is that a sterically hindered amine moiety is situated at a position that is distal to the primary amine moiety (i.e., situated at the distal terminus of the polyamine).
- the sterically hindered polyamine reactant conforms to the formula:
- Ri independently is a linear or branched hydrocarbylene moiety containing 2 to 10 carbon atoms (preferably 2 to 6);
- X is O or N(3 ⁇ 4), where R 2 is independently selected from hydrogen, substituted and unsubstituted hydrocarbyl group (Ci to C 10 alkyl, Ci to C 10 hydroxy substituted alkyl); n is 0 or 1 to 10;
- R 3 and R 4 independently represent a substituted or unsubstituted hydrocarbyl group (can be alicyclic and aromatic) containing 5 to 30 carbon atoms, subject to the proviso that the total number of carbon atoms contained in R 3 and R 4 is at least 10;
- R 3 and R 4 taken together with the nitrogen atom to which they are attached represents a substituted or unsubstituted monocyclic or multicyclic ring structure (non aromatic or aromatic) containing at least 4 carbon atoms, wherein said ring structures optionally contain at least one additional heteroatom (e.g., selected from O,
- R3 and R4 are independently selected from neopentyl, 2-ethylhexyl, 2- propylheptyl, neodecyl, lauryl, myristyl, stearyl, iso-stearyl, hydrogenated coco, hydrogenated soya, and hydrogenated tallow.
- the first dispersant and the second dispersant may be derivatives of polyether amines or polyether polyamines.
- Typical polyether amine compounds contain at least one ether unit and will be chain terminated with at least one amine moiety.
- the polyether polyamines can be based on polymers derived from C2-C6 epoxides such as ethylene oxide, propylene oxide, and butylene oxide. Examples of polyether polyamines are sold under the Jeffamine® brand and are commercially available from Hunstman Corporation.
- the second dispersant is a polyisobutylene succinimide. In another embodiment, the second dispersant is a polyisobutylene succinimide that is mono succinated.
- the lubricating compositions of the instant disclosure may include 2 to 20 wt % of a dispersant additive package. In some embodiments, the lubricating composition includes 2 to 15 wt% of the dispersant additive package. In other embodiments, the lubricating composition includes 2 to 10 wt% of the dispersant additive package. In some embodiments, the lubricating composition includes 2 to 8 wt% of the dispersant additive package. In other embodiments, the lubricating composition includes 4 to 8 wt% of the dispersant additive package.
- the dispersant additive package may include from 1 to 19 wt % of the acylated poly(l-olefm)-based dispersant (first dispersant) and from 1 to 19 wt % of the polyisobutylene-based dispersant (second dispersant).
- the dispersant additive package includes 2 to 8 wt % of the first dispersant and from 1 to 6 wt % of the second dispersant.
- the first dispersant is a polydecene succinimide present in the lubricating composition in an amount of from 2 to 8 wt % and the second dispersant is a polyisobutylene succinimide dispersant present in and amount of from 2 to 6 wt %.
- the lubricating compositions disclosed herein include a dispersant additive package including the acylated poly(l-olefm)-based dispersant and the polyisobutylene-based dispersant at a weight ratio of acylated poly(l-olefm)-based dispersant to the acylated polyisobutylene-based dispersant of from 3 : 1 to 1 :3. In one embodiment the ratio is 2: 1 to 1 :2. In another embodiment the ratio is 3 :2 to 2:3.
- the lubricating composition including the dispersant additive package has a kinematic viscosity at 100°C of from 5 to 12 cSt (mm 2 /s) and a kinematic viscosity at 40°C of from 40 to 50 cSt (mm 2 /s).
- the lubricating composition including the dispersant additive package has a kinematic viscosity at 100°C of from 6 to 10 cSt (mm 2 /s) and a kinematic viscosity at 40°C of from 40 to 47 cSt (mm 2 /s).
- the lubricating composition including the dispersant additive package has a high temperature, high shear viscosity (HTHS) of less than 3 mPa-s measured at 150°C per ASTM D4683. In one embodiment, the HTHS viscosity is less than 2.6 mPa-s. In another embodiment, the HTHS of the lubricating composition is less than 2.1 mPa-s.
- HTHS high temperature, high shear viscosity
- the lubricating composition including the dispersant additive package has a TBN of from 4 to 14 mg KOH/g. In another embodiment, the lubricating TBN is from 5 to 10 or 6 to 8 mg KOH/g.
- Lubricating compositions of the instant disclosure in addition to the dispersant additive package disclosed herein, may further contain one or more additive additives as described below.
- Anti-wear agents include phosphorus-containing compounds as well as phosphorus free compounds.
- Phosphorus-containing anti-wear agents are well known to one skilled in the art and include metal dialkyl(dithio)phosphate salts, hydrocarbyl phosphites, hydrocarbyl phosphines, hydrocarbyl phosphonates, alkylphosphate esters, amine or ammonium (alkyl)phosphate salts, and combinations thereof.
- the phosphorus-containing ant-wear agent may be a metal dialkyldithiophosphate, which may include a zinc dialkyldithiophosphate.
- Such zinc salts are often referred to as zinc dialkyldithiophosphates (ZDDP) or simply zinc dithiophosphates (ZDP).
- compositions may include primary zinc dialkyldithiophosphates.
- compositions include secondary zinc dialkyldithiophosphates.
- compositions include a mixture of primary and secondary zinc dialkyldithiophosphates.
- component (b) is a mixture of primary and secondary zinc dialkyldithiophosphates where the ratio of primary zinc dialkyldithiophosphates to secondary zinc dialkyldithiophosphates (one a weight basis) is at least 1 : 1, or even at least 1 : 1.2, or even at least 1 : 1.5 or 1 :2, or 1 : 10.
- metal dialkyldithiophosphate examples include metal salts of the formula:
- R 1 and R 2 are independently hydrocarbyl groups containing 3 to 24 carbon atoms, or 3 to 12 carbon atoms, or 3 to 8 carbon atoms; M is a metal having a valence n and generally incudes zinc, copper, iron, cobalt, antimony, manganese, and combinations thereof.
- R 1 and R 2 are secondary aliphatic hydrocarbyl groups containing 3 to 8 carbon atoms, and M is zinc.
- ZDDP may be present in the composition in an amount to deliver 0.01 weight percent to 0.12 weight percent phosphorus to the lubricating composition.
- ZDDP may be present in an amount to deliver at least 100 ppm, or at least 300 ppm, or at least 500 ppm of phosphorus to the composition up to no more than 1200 ppm, or no more than 1000 ppm, or no more than 800 ppm phosphorus to the composition.
- the phosphorus-containing anti-wear agent may be a zinc free phosphorus compound.
- the zinc-free phosphorus anti-wear agent may contain sulfur or may be sulfur-free.
- Sulfur-free phosphorus-containing antiwear agents include hydrocarbyl phosphites, hydrocarbyl phosphines, hydrocarbyl phosphonates, alkylphosphate esters, amine or ammonium phosphate salts, or mixtures thereof.
- the anti-wear agent may be a phosphorus-free compound.
- suitable phosphorus-free antiwear agents include titanium compounds, hydroxy- carboxylic acid derivatives such as esters, amides, imides or amine or ammonium salt, sulfurized olefins, (thio)carbamate-containing compounds, such as (thio)carbamate esters, (thio)carbamate amides, (thio)carbamic ethers, alkyl ene-coupled (thio)carbamates, and bis(S- alkyl(dithio)carbamyl) disulfides.
- Suitable hydroxy-carboxylic acid derivatives include tartaric acid derivatives, malic acid derivatives, citric acid derivatives, glycolic acid derivatives, lactic acid derivatives, and mandelic acid derivatives.
- the antiwear agent may in one embodiment include a tartrate or tartrimide as disclosed in International Publication WO 2006/044411 or Canadian Patent CA 1 183 125.
- the tartrate or tartrimide may contain alkyl-ester groups, where the sum of carbon atoms on the alkyl groups is at least 8.
- the antiwear agent may in one embodiment include a citrate as is disclosed in US Patent Application 20050198894.
- the anti-wear agent may be represented by the formula:
- X is independently -Z-O-Z’-, >CH 2 , >CHR 4 , >CR 4 R 5 , >C(0H)(C0 2 R 2 ), >C(C0 2 R 2 ) 2 , or >CHOR 6 ;
- Z and Z’ are independently >CH 2 , >CHR 4 , >CR 4 R 5 , >C(0H)(C0 2 R 2 ), or >CHOR 6 ;
- m is 0 or 1;
- R 1 is independently hydrogen or a hydrocarbyl group, typically containing 1 to 150 carbon
- the phosphorus-free antiwear agent may be present at 0 wt % to 3 wt %, or 0.1 wt % to 1.5 wt %, or 0.5 wt % to 1.1 wt % of the lubricating composition.
- the antiwear agent be it phosphorus-containing, phosphorus free, or mixtures, may be present at 0.15 weight % to 6 weight %, or 0.2 weight % to 3.0 weight %, or 0.5 weight % to 1.5 weight % of the lubricating composition.
- Another class of additives includes oil-soluble titanium compounds as disclosed in U.S. Pat. No. 7,727,943 and US2006/0014651.
- the oil-soluble titanium compounds may function as antiwear agents, friction modifiers, antioxidants, deposit control additives, or more than one of these functions.
- the oil soluble titanium compound is a titanium (IV) alkoxide.
- the titanium alkoxide is formed from a monohydric alcohol, a polyol or mixtures thereof.
- the monohydric alkoxides may have 2 to 16, or 3 to 10 carbon atoms.
- the titanium alkoxide is titanium (IV) isopropoxide.
- the titanium alkoxide is titanium (IV) 2-ethylhexoxide.
- the titanium compound comprises the alkoxide of a vicinal 1,2-diol or polyol.
- the 1,2- vicinal diol comprises a fatty acid mono-ester of glycerol, often the fatty acid is oleic acid.
- the instant compositions may include an ashless antioxidant.
- Ashless antioxidants may comprise one or more of arylamines, diarylamines, alkylated arylamines, alkylated diaryl amines, phenols, hindered phenols, sulfurized olefins, or mixtures thereof.
- the lubricating composition includes an antioxidant, or mixtures thereof.
- the antioxidant may be present at 1.2 weight % to 7 weight %, or 1.2 weight % to 6 weight %, or 1.5 weight % to 5 weight %, of the lubricating composition.
- the diarylamine or alkylated diarylamine may be a phenyl-a-naphthylamine (PANA), an alkylated diphenylamine, or an alkylated phenylnapthyl amine, or mixtures thereof.
- the alkylated diphenylamine may include di-nonylated diphenylamine, nonyl diphenylamine, octyl diphenylamine, di-octylated diphenylamine, di-decylated diphenylamine, decyl diphenylamine and mixtures thereof.
- the diphenylamine may include nonyl diphenylamine, dinonyl diphenylamine, octyl diphenylamine, dioctyl diphenylamine, or mixtures thereof.
- the alkylated diphenylamine may include nonyl diphenylamine, or dinonyl diphenylamine.
- the alkylated diarylamine may include octyl, di-octyl, nonyl, di-nonyl, decyl or di-decyl phenylnapthylamines.
- the diarylamine antioxidant may be present on a weight basis of this lubrication composition at 0.1% to 10%, 0.35% to 5%, or even 0.5% to 2%.
- the phenolic antioxidant may be a simple alkyl phenol, a hindered phenol, or coupled phenolic compounds.
- the hindered phenol antioxidant often contains a secondary butyl and/or a tertiary butyl group as a sterically hindering group.
- the phenol group may be further substituted with a hydrocarbyl group (typically linear or branched alkyl) and/or a bridging group linking to a second aromatic group.
- hindered phenol antioxidants examples include 2,6-di- tert-butylphenol, 4-methyl-2,6-di-tert-butylphenol, 4-ethyl-2,6-di-tert-butylphenol, 4 propyl - 2,6-di-tert-butyl-phenol or 4-butyl-2,6-di-tert-butylphenol, 4-dodecyl-2,6-di-tert- butyl-phenol, or butyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate.
- the hindered phenol antioxidant may be an ester and may include, e.g., IrganoxTM L-135 from Ciba.
- Coupled phenols often contain two alkylphenols coupled with alkylene groups to form bisphenol compounds.
- suitable coupled phenol compounds include 4,4'- methylene bis-(2,6-di-tert-butyl phenol), 4-methyl-2,6-di-tert-butylphenol, 2,2'-bis-(6-t- butyl-4-heptylphenol); 4,4'-bis(2,6-di-t-butyl phenol), 2,2'-methylenebis(4-methyl-6-t- butylphenol), and 2,2'-methylene bis(4-ethyl-6-t-butylphenol).
- Phenols may include polyhydric aromatic compounds and their derivatives.
- suitable polyhydric aromatic compounds include esters and amides of gallic acid, 2,5-dihydroxybenzoic acid, 2,6-dihydroxybenzoic acid, l,4-dihydroxy-2-naphthoic acid, 3,5- dihydroxynaphthoic acid, 3,7-dihydroxy naphthoic acid, and mixtures thereof.
- the phenolic antioxidant comprises a hindered phenol.
- the hindered phenol is derived from 2,6-ditertbutyl phenol.
- the lubricating composition comprises a phenolic antioxidant in a range of 0.01 wt % to 5 wt %, or 0.1 wt % to 4 wt %, or 0.2 wt % to 3 wt %, or 0.5 wt % to 2 wt % of the lubricating composition.
- Sulfurized olefins are well known commercial materials, and those which are substantially nitrogen-free, that is, not containing nitrogen functionality, are readily available.
- the olefmic compounds which may be sulfurized are diverse in nature. They contain at least one olefmic double bond, which is defined as a non-aromatic double bond; that is, one connecting two aliphatic carbon atoms. These materials generally have sulfide linkages having 1 to 10 sulfur atoms, for instance, 1 to 4, or 1 or 2.
- Suitable sulfurized olefins include sulfurized alpha olefins containing 10 to 22 carbon atoms, sulfurized isobutylene, sulfurized di -isobutylene, 4-Carbobutoxy cyclohexene, and combinations thereof.
- Ashless antioxidants may be used separately or in combination.
- two or more different antioxidants are used in combination, such that there is at least 0.1 weight percent of each of the at least two antioxidants and wherein the combined amount of the ashless antioxidants is 1.2 to 7 weight percent. In one embodiment, there may be at least 0.25 to 3 weight percent of each ashless antioxidant.
- Metal-containing detergents are well known in the art. They are generally made up of metal salts, especially alkali metals and alkaline earth metals, of acidic organic substrates. Metal-containing detergents may be neutral, i.e. a stoichiometric salt of the metal and substrate also referred to as neutral soap or soap, or overbased.
- Metal overbased detergents otherwise referred to as overbased detergents, metal- containing overbased detergents or superbased salts, are characterized by a metal content in excess of that which would be necessary for neutralization according to the stoichiometry of the metal and the particular acidic organic compound, i.e. the substrate, reacted with the metal.
- the overbased detergent may comprise one or more of non-sulfur containing phenates, sulfur containing phenates, sulfonates, salicylates, and mixtures thereof.
- the amount of excess metal is commonly expressed in terms of substrate to metal ratio.
- the terminology“metal ratio” is used in the prior art and herein to define the ratio of the total chemical equivalents of the metal in the overbased salt to the chemical equivalents of the metal in the salt which would be expected to result from the reaction between the hydrocarbyl substituted organic acid; the hydrocarbyl-substituted phenol or mixtures thereof to be overbased, and the basic metal compound according to the known chemical reactivity and the stoichiometry of the two reactants.
- the metal ratio in a normal or neutral salt (i.e. soap) the metal ratio is one and, in an overbased salt, the metal ratio is greater than one, especially greater than 1.3.
- the overbased metal detergent may have a metal ratio of 5 to 30, or a metal ratio of 7 to 22, or a metal ratio of at least 11.
- the metal -containing detergent may also include "hybrid" detergents formed with mixed surfactant systems including phenate and/or sulfonate components, e.g. phenate- salicylates, sulfonate-phenates, sulfonate-salicylates, sulfonates-phenates-salicylates, as described, for example, in US Patents 6,429,178; 6,429,179; 6,153,565; and 6,281,179.
- phenate- salicylates e.g. phenate- salicylates, sulfonate-phenates, sulfonate-salicylates, sulfonates-phenates-salicylates, as described, for example, in US Patents 6,429,178; 6,429,179; 6,153,565; and 6,281,179.
- hybrid detergent would be considered equivalent to amounts of distinct phenate and sulfonate detergents introducing like amounts of phenate and sulfonate soaps, respectively.
- Overbased phenates and salicylates typically have a total base number of 180 to 450 TBN.
- Overbased sulfonates typically have a total base number of 250 to 600, or 300 to 500.
- Overbased detergents are known in the art.
- Alkylphenols are often used as constituents in and/or building blocks for overbased detergents.
- Alkylphenols may be used to prepare phenate, salicylate, salixarate, or saligenin detergents or mixtures thereof.
- Suitable alkylphenols may include para-substitued hydrocarbyl phenols.
- the hydrocarbyl group may be linear or branched aliphatic groups of 1 to 60 carbon atoms, 8 to 40 carbon atoms, 10 to 24 carbon atoms, 12 to 20 carbon atoms, or 16 to 24 carbon atoms.
- the alkylphenol overbased detergent is prepared from an alkylphenol or mixture thereof that is free of or substantially free of (i.e.
- the lubricating composition contains less than 0.1 weight percent) p-dodecylphenol. In one embodiment, the lubricating composition contains less than 0.3 weight percent of alkylphenol, less than 0.1 weight percent of alkylphenol, or less than 0.05 weight percent of alkylphenol.
- the overbased metal -containing detergent may be alkali metal or alkaline earth metal salts.
- the overbased detergent may be sodium salts, calcium salts, magnesium salts, or mixtures thereof of the phenates, sulfur-containing phenates, sulfonates, salixarates and salicylates.
- the overbased detergent is a calcium detergent, a magnesium detergent or mixtures thereof.
- the overbased calcium detergent may be present in an amount to deliver at least 500 ppm calcium by weight and no more than 3000 ppm calcium by weight, or at least 1000 ppm calcium by weight, or at least 2000 ppm calcium by weight, or no more than 2500 ppm calcium by weight to the lubricating composition.
- the overbased detergent may be present in an amount to deliver no more than 500 ppm by weight of magnesium to the lubricating composition, or no more than 330 ppm by weight, or no more than 125 ppm by weight, or no more than 45 ppm by weight.
- the lubricating composition is essentially free of (i.e. contains less than 10 ppm) magnesium resulting from the overbased detergent.
- the overbased detergent may be present in an amount to deliver at least 200 ppm by weight of magnesium, or at least 450 ppm by weight magnesium, or at least 700 ppm by weight magnesium to the lubricating composition.
- both calcium and magnesium containing detergents may be present in the lubricating composition. Calcium and magnesium detergents may be present such that the weight ratio of calcium to magnesium is 10: 1 to 1 : 10, or 8:3 to 4:5, or 1 : 1 to 1 :3.
- the overbased detergent is free of or substantially free of sodium.
- the sulfonate detergent may be predominantly a linear alkylbenzene sulfonate detergent having a metal ratio of at least 8 as is described in paragraphs [0026] to [0037] of US Patent Publication 2005/065045 (and granted as US 7,407,919).
- the linear alkylbenzene sulfonate detergent may be particularly useful for assisting in improving fuel economy.
- the linear alkyl group may be attached to the benzene ring anywhere along the linear chain of the alkyl group, but often in the 2, 3 or 4 position of the linear chain, and in some instances, predominantly in the 2 position, resulting in the linear alkylbenzene sulfonate detergent.
- Salicylate detergents and overbased salicylate detergents may be prepared in at least two different manners. Carbonylation (also referred to as carboxylation) of a p-alkylphenol is described in many references including US Patent 8,399,388. Carbonylation may be followed by overbasing to form overbased salicylate detergent. Suitable p-alkylphenols include those with linear and/or branched hydrocarbyl groups of 1 to 60 carbon atoms. Salicylate detergents may also be prepared by alkylation of salicylic acid, followed by overbasing, as described in US Patent 7,009,072.
- Salicylate detergents prepared in this manner may be prepared from linear and/or branched alkylating agents (usually 1 -olefins) containing 6 to 50 carbon atoms, 10 to 30 carbon atoms, or 14 to 24 carbon atoms.
- the overbased detergent is a salicylate detergent.
- the salicylate detergent is free of unreacted p- alkylphenol (i.e. contains less than 0.1 weight percent).
- the salicylate detergent is prepared by alkylation of salicylic acid.
- the metal-containing overbased detergents may be present at 0.2 wt % to 15 wt %, or 0.3 wt % to 10 wt %, or 0.3 wt % to 8 wt %, or 0.4 wt % to 3 wt %.
- the detergent may be present at 2 wt % to 3 wt % of the lubricating composition.
- the detergent may be present at 0.2 wt % to 1 wt % of the lubricating composition.
- Metal-containing detergents contribute sulfated ash to a lubricating composition.
- Sulfated ash may be determined by ASTM D874.
- the lubricating composition comprises a metal-containing detergent in an amount to deliver at least 0.4 weight percent sulfated ash to the total composition.
- the metal -containing detergent is present in an amount to deliver at least 0.6 weight percent sulfated ash, or at least 0.75 weight percent sulfated ash, or even at least 0.9 weight percent sulfated ash to the lubricating composition.
- the metal-containing overbased detergent is present in an amount to deliver 0.1 weight percent to 0.8 weight percent sulfated ash to the lubricating composition.
- overbased detergents contribute detergent soap, also referred to as neutral detergent salt, to the lubricating composition.
- Soap being a metal salt of the substrate, may act as a surfactant in the lubricating composition.
- the lubricating composition comprises 0.05 weight percent to 1.5 weight percent detergent soap, or 0.1 weight percent to 0.9 weight percent detergent soap.
- the lubricating composition contains no more than 0.5 weight percent detergent soap.
- the overbased detergent may have a weight ratio of ash:soap of 5: 1 to 1 :2.3, or 3.5: 1 to 1 :2, or 2.9: 1 to 1 : 1 :7.
- the lubricating compositions may comprise a dispersant different from the dispersants of the invention.
- the dispersant may be a Mannich dispersant or mixtures thereof.
- the lubricating composition may contain a polymeric viscosity modifier, a dispersant viscosity modifier different from that of that invention, or combinations thereof.
- the dispersant viscosity modifier may be generally understood to be a functionalized, i.e. derivatized, form of a polymer similar to that of the polymeric viscosity modifier.
- the polymeric viscosity modifier may be an olefin (co)polymer, a poly(meth)acrylate (PMA), a vinyl aromatic-diene copolymer, or mixtures thereof.
- the polymeric viscosity modifier is an olefin (co)polymer.
- the olefin polymer may be derived from isobutylene or isoprene.
- the olefin polymer is prepared from ethylene and a higher olefin within the range of C3-C10 alpha-mono-olefms, for example, the olefin polymer may be prepared from ethylene and propylene.
- the olefin polymer may be a polymer of 15 to 80 mole percent of ethylene, for example, 30 mol percent to 70 mol percent ethylene and from and from 20 to 85 mole percent of C3 to CIO mono-olefins, such as propylene, for example, 30 to 70 mol percent propylene or higher mono-olefins.
- C3 to CIO mono-olefins such as propylene, for example, 30 to 70 mol percent propylene or higher mono-olefins.
- Terpolymer variations of the olefin copolymer may also be used and may contain up to 15 mol percent of a non-conjugated diene or triene. Non- conjugated dienes or trienes may have 5 to about 14 carbon atoms.
- the non-conjugated diene or triene monomers may be characterized by the presence of a vinyl group in the structure and can include cyclic and bicycle compounds.
- Representative dienes include 1,4-hexadiene, 1,4- cyclohexadiene, dicyclopentadiene, 5-ethyldiene-2-norbomene, 5-methylene-2-norbomene, 1,5-heptadiene, and 1,6-octadiene.
- the olefin copolymer may be a copolymer of ethylene, propylene, and butylene.
- the polymer may be prepared by polymerizing a mixture of monomers comprising ethylene, propylene and butylene. These polymers may be referred to as copolymers or terpolymers.
- the terpolymer may comprise from about 5 mol % to about 20 mol %, or from about 5 mol % to about 10 mol % structural units derived from ethylene; from about 60 mol % to about 90 mol %, or from about 60 mol % to about 75 mol structural units derived from propylene; and from about 5 mol % to about 30 mol %, or from about 15 mol % to about 30 mol % structural units derived from butylene.
- the butylene may comprise any isomers or mixtures thereof, such as n-butylene, iso-butylene, or a mixture thereof.
- the butylene may comprise butene-1.
- butylene may comprise butene-1 as well as butene-2 and butadiene.
- the butylene may comprise a mixture of butene- 1 and isobutylene wherein the weight ratio of butene-1 to isobutylene is about 1 :0.1 or less.
- the butylene may comprise butene-1 and be free of or essentially free of isobutylene.
- the olefin copolymer may be a copolymer of ethylene and butylene.
- the polymer may be prepared by polymerizing a mixture of monomers comprising ethylene and butylene wherein, the monomer composition is free of or substantially free of propylene monomers (i.e. contains less than 1 weight percent of intentionally added monomer).
- the copolymer may comprise 30 to 50 mol percent structural units derived from butylene; and from about 50 mol percent to 70 mol percent structural units derived from ethylene.
- the butylene may comprise a mixture of butene- 1 and isobutylene wherein the weight ratio of butene-1 to isobutylene is about 1 :0.1 or less.
- the butylene may comprise butene-1 and be free of or essentially free of isobutylene.
- Useful olefin polymers in particular, ethylene-a-olefm copolymers have a number average molecular weight ranging from 4500 to 500,000, for example, 5000 to 100,000, or 7500 to 60,000, or 8000 to 45,000.
- the formation of functionalized ethylene-a-olefm copolymer is well known in the art, for instance those described in U.S. Patent US 7,790,661 column 2, line 48 to column 10, line 38. Additional detailed descriptions of similar functionalized ethylene-a-olefm copolymers are found in International Publication W02006/015130 or U.S.
- the functionalized ethylene-a-olefm copolymer may include those described in U.S. Patent 4,863,623 (see column 2, line 15 to column 3, line 52) or in International Publication W02006/015130 (see page 2, paragraph [0008] and preparative examples are described paragraphs [0065] to [0073]).
- the lubricating composition comprises a dispersant viscosity modifier (DVM).
- DVM dispersant viscosity modifier
- the DVM may comprise an olefin polymer that has been modified by the addition of a polar moiety.
- the olefin polymers are functionalized by modifying the polymer by the addition of a polar moiety.
- the functionalized copolymer is the reaction product of an olefin polymer grafted with an acylating agent.
- the acylating agent may be an ethylenically unsaturated acylating agent.
- Useful acylating agents are typically a,b unsaturated compounds having at least one ethylenic bond (prior to reaction) and at least one, for example two, carboxylic acid (or its anhydride) groups or a polar group which is convertible into said carboxyl groups by oxidation or hydrolysis.
- the acylating agent grafts onto the olefin polymer to give two carboxylic acid functionalities.
- useful acylating agents include maleic anhydride, chlormaleic anhydride, itaconic anhydride, or the reactive equivalents thereof, for example, the corresponding dicarboxylic acids, such as maleic acid, fumaric acid, cinnamic acid, (meth)acrylic acid, the esters of these compounds and the acid chlorides of these compounds.
- the functionalized ethylene-a-olefm copolymer comprises an olefin copolymer grafted with the acyl group which is further functionalized with a hydrocarbyl amine, a hydrocarbyl alcohol group, amino- or hydroxy- terminated polyether compounds, and mixtures thereof.
- Amine functional groups may be added to the olefin polymer by reacting the olefin copolymer (typically, an ethylene-a-olefin copolymer, such as an ethylene-propylene copolymer) with an acylating agent (typically maleic anhydride) and a hydrocarbyl amine having a primary or secondary amino group.
- the hydrocarbyl amine may be selected from aromatic amines, aliphatic amines, and mixtures thereof.
- the polar moiety added to the functionalized ethylene- a-olefin copolymer may be derived from a hydrocarbyl alcohol group, containing at least one hydroxy group capable of condensing with said acyl group to provide a pendant group and at least one additional group comprising at least one nitrogen, oxygen, or sulfur atom.
- the alcohol functional groups may be added to the olefin polymer by reacting the olefin copolymer with an acylating agent (typically maleic anhydride) and a hydrocarbyl alcohol.
- the hydrocarbyl alcohol may be a polyol compound. Suitable hydrocarbyl polyols include ethylene glycol and propylene glycol, trimethylol propane (TMP), pentaerythritol, and mixtures thereof.
- the polar moiety added to the functionalized ethylene- a-olefin copolymer may be amine-terminated polyether compounds, hydroxy-terminated polyether compounds, and mixtures thereof.
- the hydroxy terminated or amine terminated polyether may be selected from the group comprising polyethylene glycols, polypropylene glycols, mixtures of one or more amine terminated polyether compounds containing units derived from ethylene oxides, propylene oxides, butylene oxides or some combination thereof, or some combination thereof.
- Suitable polyether compounds include Synalox® line of polyalkylene glycol compounds, the UCONTM OSP line of polyether compounds available from Dow Chemical, Jeffamine® line of polyether amines available from Huntsman.
- lubricating composition may comprise a poly(meth)acrylate polymeric viscosity modifier.
- poly(meth)acrylate and its cognates means either methacrylate or acrylate, as will be readily understood.
- the poly(meth)acrylate polymer is prepared from a monomer mixture comprising (meth)acrylate monomers having alkyl groups of varying length.
- the (meth)acrylate monomers may contain alkyl groups that are straight chain or branched chain groups.
- the alkyl groups may contain 1 to 24 carbon atoms, for example 1 to 20 carbon atoms.
- the poly(meth)acrylate polymers described herein are formed from monomers derived from saturated alcohols, such as methyl (meth)acrylate, ethyl (meth)acrylate, propyl (meth)acrylate, butyl (meth)acrylate, 2-methylpentyl (meth)acrylate, 2-propylheptyl (meth)acrylate, 2-butyloctyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, octyl (meth)acrylate, nonyl (meth)acrylate, isooctyl (meth)acrylate, isononyl (meth)acrylate, 2-tert- butylheptyl (meth)acrylate, 3-isopropylheptyl (meth)acrylate, decyl (meth)acrylate, undecyl (meth)acrylate, 5 -methyl undecyl (meth)acrylate, dodecyl (me
- alkyl (meth)acrylates with long-chain alcohol-derived groups which may be obtained, for example, by reaction of a (meth)acrylic acid (by direct esterification) or methyl (meth)acrylate (by transesterification) with long-chain fatty alcohols, in which reaction a mixture of esters such as (meth)acrylate with alcohol groups of various chain lengths is generally obtained.
- These fatty alcohols include Oxo Alcohol® 7911, Oxo Alcohol® 7900 and Oxo Alcohol® 1100 of Monsanto; Alphanol® 79 of ICI; Nafol® 1620, Alfol® 610 and Alfol® 810 of Condea (now Sasol); Epal® 610 and Epal® 810 of Ethyl Corporation; Linevol® 79, Linevol® 911 and Dobanol® 25 L of Shell AG; Lial® 125 of Condea Augusta, Milan; Dehydad® and Lord® of Henkel KGaA (now Cognis) as well as Linopol® 7-11 and Acropol® 91 of Ugine Kuhlmann.
- the poly(meth)acrylate polymer comprises a dispersant monomer; dispersant monomers include those monomers which may copolymerize with (meth)acrylate monomers and contain one or more heteroatoms in addition to the carbonyl group of the (meth)acrylate.
- the dispersant monomer may contain a nitrogen-containing group, an oxygen-containing group, or mixtures thereof.
- the oxygen-containing compound may include hydroxyalkyl(meth)acrylates such as 3-hydroxypropyl(meth)acrylate, ,4-dihydroxybutyl(meth)acrylate, 2- hydroxy ethyl (meth)acrylate, 2-hydroxypropyl(meth)acryl ate, 2, 5 -dimethyl - 1 , 6-hexanediol (meth)acrylate, l, 10-decanediol(meth)acrylate, carbonyl -containing (meth)acrylates such as 2-carboxyethyl(meth)acrylate, carboxymethyl(meth)acrylate, oxazolidinylethyl(meth)acrylate, N-(methacryloyloxy)formamide, acetonyl(meth)acrylate, N-methacryloylmorpholine, N-methacryloyl-2-pyrrolidinone, N-(2-methacryloyl-oxyethyl
- the nitrogen-containing compound may be a (meth)acrylamide or a nitrogen containing (meth)acrylate monomer.
- suitable nitrogen-containing compound include N,N-dimethylacrylamide, N-vinyl carbonamides such as N-vinyl-formamide, vinyl pyridine, N-vinylacetoamide, N-vinyl propionamides, N-vinyl hydroxy- acetoamide, N-vinyl imidazole, N-vinyl pyrrolidinone, N-vinyl caprolactam, dimethylaminoethyl acrylate (DMAEA), dimethyl aminoethyl methacrylate (DMAEMA), dimethylaminobutyl acrylamide, dimethylaminopropyl methacrylate (DMAPMA), dimethylaminopropyl acrylamide, dimethyl-aminopropyl methacrylamide, dimethylaminoethyl acrylamide or mixtures thereof.
- DAEA dimethyl aminoethyl meth
- Dispersant monomers may be present in an amount up to 5 mol percent of the monomer composition of the (meth)acrylate polymer. In one embodiment, the poly(meth)acrylate is present in an amount 0 to 5 mol percent, 0.5 to 4 mol percent, or 0.8 to 3 mol percent of the polymer composition. In one embodiment, the poly(meth)acrylate is free of or substantially free of dispersant monomers.
- the poly(meth)acrylate comprises a block copolymer or tapered block copolymer.
- Block copolymers are formed from a monomer mixture comprising one or more (meth)acrylate monomers, wherein, for example, a first (meth)acrylate monomer forms a discrete block of the polymer joined to a second discrete block of the polymer formed from a second (meth)acrylate monomer. While block copolymers have substantially discrete blocks formed from the monomers in the monomer mixture, a tapered block copolymer may be composed of, at one end, a relatively pure first monomer and, at the other end, a relatively pure second monomer. The middle of the tapered block copolymer is more of a gradient composition of the two monomers.
- the poly(meth)acrylate polymer (P) is a block or tapered block copolymer that comprises at least one polymer block (Bi) that is insoluble or substantially insoluble in the base oil and a second polymer block (B2) that is soluble or substantially soluble in the base oil.
- the poly(meth)acrylate polymers may have an architecture selected from linear, branched, hyper-branched, cross-linked, star (also referred to as “radial”), or combinations thereof.
- Star or radial refers to multi-armed polymers.
- Such polymers include (meth)acrylate-containing polymers comprising 3 or more arms or branches, which, in some embodiments, contain at least about 20, or at least 50 or 100 or 200 or 350 or 500 or 1000 carbon atoms.
- the arms are generally attached to a multivalent organic moiety which acts as a“core” or“coupling agent.”
- the multi -armed polymer may be referred to as a radial or star polymer, or even a“comb” polymer, or a polymer otherwise having multiple arms or branches as described herein.
- Linear poly(meth)acrylates may have weight average molecular weight (M w ) of 1000 to 400,000 Daltons, 1000 to 150,000 Daltons, or 15,000 to 100,000 Daltons.
- the poly(meth)acrylate may be a linear block copolymer with a Mw of 5,000 to 40,000 Daltons, or 10,000 to 30,000 Daltons.
- Radial, cross-linked or star copolymers may be derived from linear random or di block copolymers with molecular weights as described above.
- a star polymer may have a weight average molecular weight of 10,000 to 1,500,000 Daltons, or 40,000 to 1,000,000 Daltons, or 300,000 to 850,000 Daltons.
- the lubricating composition may comprise a vinylaromatic- diene copolymer.
- the vinylaromatic-diene copolymer may be a linear or radial block copolymer.
- the vinylaromatic-diene copolymer may be a hydrogenated styrene-(conjugated diene) block copolymer.
- the block copolymer in different embodiments may be a hydrogenated styrene- butadiene copolymer or a hydrogenated styrene-isoprene copolymer. Both block copolymers are known in the art and are disclosed for example in EP 2 001 983 A (Price et al.) for hydrogenated styrene-butadiene and U.S. Pat. No. 5,490,945 (Smith et al.) for hydrogenated styrene-isoprene.
- the butadiene block of the hydrogenated styrene-butadiene copolymer may be prepared with by either 1,2-addition or 1,4-addition, with 1,2-addition preferred as is disclosed in EP 2 001 983 A.
- 1,2-addition results in a butadiene block having 20 mol % to 80 mol %, or 25 mol % to 75 mol %, or 30 mol % to 70 mol %, or 40 mol % to 65 mol % of repeat units of branched alkyl groups due to initially-formed pendant unsaturated or vinyl groups, upon hydrogenation, become alkyl branches.
- the lubricating compositions may comprise 0.05 weight % to 2 weight %, or 0.08 weight % to 1.8 weight %, or 0.1 to 1.2 weight % of the one or more polymeric viscosity modifiers and/or dispersant viscosity modifiers as described herein.
- Other Performance Additives :
- compositions disclosed herein may optionally comprise one or more additional performance additives.
- additional performance additives may include one or more metal deactivators, friction modifiers, corrosion inhibitors, extreme pressure agents, foam inhibitors, demulsifiers, pour point depressants, seal swelling agents, and any combination or mixture thereof.
- metal deactivators may include one or more metal deactivators, friction modifiers, corrosion inhibitors, extreme pressure agents, foam inhibitors, demulsifiers, pour point depressants, seal swelling agents, and any combination or mixture thereof.
- fully-formulated lubricating oil will contain one or more of these performance additives, and often a package of multiple performance additives.
- performance additives are included based on the application of the lubricating composition, and the specific performance additive and treat rate thereof would be apparent to one of ordinary skill in the art in view of this disclosure.
- a lubricating composition further comprises a friction modifier.
- friction modifiers include long chain fatty acid derivatives of amines, fatty esters, or epoxides; fatty imidazolines such as condensation products of carboxylic acids and polyalkylene-polyamines; amine salts of alkylphosphoric acids; fatty alkyl tartrates; fatty alkyl tartrimides; or fatty alkyl tartramides.
- fatty as used herein, can mean having a C8-22 linear alkyl group.
- Friction modifiers may also encompass materials such as sulfurized fatty compounds and olefins, molybdenum dialkyldithiophosphates, molybdenum dithiocarbamates, sunflower oil or monoester of a polyol and an aliphatic carboxylic acid.
- the friction modifier may be selected from the group consisting of long chain fatty acid derivatives of amines, long chain fatty esters, or long chain fatty epoxides; fatty imidazolines; amine salts of alkylphosphoric acids; fatty alkyl tartrates; fatty alkyl tartrimides; and fatty alkyl tartramides.
- the friction modifier may be present at 0 wt % to 6 wt %, or 0.05 wt % to 4 wt %, or 0.1 wt % to 2 wt % of the lubricating composition.
- the friction modifier may be a long chain fatty acid ester.
- the long chain fatty acid ester may be a mono-ester or a diester or a mixture thereof, and in another embodiment, the long chain fatty acid ester may be a triglyceride.
- a lubricating composition may further comprise a molybdenum compound.
- the molybdenum compound may be selected from the group consisting of molybdenum dialkyldithiophosphates, molybdenum dithiocarbamates, amine salts of molybdenum compounds, and mixtures thereof.
- the molybdenum compound may provide the lubricating composition with 0 to 1000 ppm, or 5 to 1000 ppm, or 10 to 750 ppm, or 5 ppm to 300 ppm, or 20 ppm to 250 ppm of molybdenum
- corrosion inhibitors include those described in paragraphs 5 to 8 of US Application US05/038319, published as W02006/047486, octyl octanamide, condensation products of dodecenyl succinic acid or anhydride and a fatty acid such as oleic acid with a polyamine.
- the corrosion inhibitors include the Synalox® (a registered trademark of The Dow Chemical Company) corrosion inhibitor.
- the Synalox® corrosion inhibitor may be a homopolymer or copolymer of propylene oxide.
- the Synalox® corrosion inhibitor is described in more detail in a product brochure with Form No. 118-01453-0702 AMS, published by The Dow Chemical Company.
- the product brochure is entitled “SYNALOX Lubricants, High-Performance Polyglycols for Demanding Applications.”
- the lubricating composition may further include metal deactivators, including derivatives of benzotriazoles (typically tolyltriazole), dimercaptothiadiazole derivatives, 1,2,4-triazoles, benzimidazoles, 2-alkyl dithiobenzimidazoles, or 2-alkyl dithiobenzothiazoles; foam inhibitors, including copolymers of ethyl acrylate and 2-ethylhexylacrylate and copolymers of ethyl acrylate and 2-ethylhexylacrylate and vinyl acetate; demulsifiers including trialkyl phosphates, polyethylene glycols, polyethylene oxides, polypropylene oxides and (ethylene oxide-propylene oxide) polymers; and pour point depressants, including esters of maleic anhydride-styrene, polymethacrylates, polyacrylates or polyacrylamides.
- metal deactivators including derivatives of benzotriazoles (typically tolyltriazole
- pour point depressants that may be useful in the lubricating compositions disclosed herein further include polyalphaolefms, esters of maleic anhydride-styrene, poly(meth)acrylates, polyacrylates or polyacrylamides.
- the lubricating composition may have a composition as described in the following table:
- the lubricating composition may be characterized as having (i) a sulfur content of 0.5 wt % or less, (ii) a phosphorus content of 0.15 wt % or less, and (iii) a sulfated ash content of 0.5 wt % to 1.5 wt % or less.
- the lubricating composition may be characterized as having at least one of (i) a sulfur content of 0.2 wt % to 0.4 wt % or less, (ii) a phosphorus content of 0.08 wt % to 0.15 wt %, and (iii) a sulfated ash content of 0.5 wt % to 1.5 wt % or less.
- the invention provides for a method of lubricating an internal combustion engine comprising supplying to the internal combustion engine a lubricating composition as disclosed herein.
- the lubricant is added to the lubricating system of the internal combustion engine, which then delivers the lubricating composition to the critical parts of the engine, during its operation, that require lubrication.
- the lubricating compositions described above may be utilized in an internal combustion engine.
- the engine components may have a surface of steel or aluminum (typically a surface of steel) and may also be coated for example with a diamondlike carbon (DLC) coating.
- DLC diamondlike carbon
- the internal combustion engine may be fitted with an emission control system or a turbocharger.
- emission control system examples include diesel particulate filters (DPF), gasoline particulate filters (GPF), systems employing selective catalytic reduction (SCR), and combinations thereof.
- DPF diesel particulate filters
- GPF gasoline particulate filters
- SCR selective catalytic reduction
- the internal combustion engine may be a spark-ignited engine (i.e. gasoline) or a compression-ignition (i.e. diesel) engine.
- Internal combustion engines may be port fuel injected (PFI) or direct injected.
- the internal combustion engine is a gasoline direct injection engine (GDI).
- Direct injection engines are characterized by injection of the fuel, e.g., gasoline, directly into the cylinder. This is distinct from port fuel injection (PFI) and can result in higher efficiency, higher compression, and/or higher brake mean effective pressure than analogous PFI engines.
- the internal combustion engine is equipped with a turbocharger, a supercharger, or combinations thereof.
- Turbochargers and superchargers both work to increase the volumetric efficiency of engines, i.e. the volume of air that fills a cylinder relative to the volume of the cylinder.
- Turbochargers and superchargers work by forcing more air into the cylinder, resulting in higher torque for a given displacement, and hence higher BMEP.
- turbochargers and superchargers can increase the likelihood of stochastic pre-ignition, especially at lower speeds.
- the lubricating compositions disclosed herein may be used in a turbo-charged direct-injection (TDi) engine.
- TDi turbo-charged direct-injection
- the instant disclosure further relates to methods for lubricating an internal combustion engine with a lubricating composition disclosed herein.
- the methods of the instant disclosure include supplying to the internal combustion engine, such as a TDi engine, a lubricating composition including an oil of lubricating viscosity and from 2 to 20 wt % of a dispersant additive package, the dispersant additive package including an acylated poly(l- olefm)-based dispersant, where the poly(l -olefin) is comprised of at least 75 mole percent of a C6 to Cl 8 hydrocarbyl and a polyisobutylene succinimide dispersant, where the ratio of the acylated poly(l -olefm)-based dispersant to the polyisobutylene succinimide dispersant is from 3 : 1 to 1 :3, or 2: 1 to 1 :2, or 3 :2 to 2:3.
- a lubricating composition including an oil of
- hydrocarbyl substituent or “hydrocarbyl group” is used in its ordinary sense, which is well-known to those skilled in the art. Specifically, it refers to a group having a carbon atom directly attached to the remainder of the molecule and having predominantly hydrocarbon character including one or more double bonds.
- hydrocarbyl groups include: hydrocarbon substituents, that is, aliphatic (e.g., alkyl or alkenyl), alicyclic (e.g., cycloalkyl, cycloalkenyl) substituents, and aromatic-, aliphatic-, and alicyclic- substituted aromatic substituents, as well as cyclic substituents wherein the ring is completed through another portion of the molecule (e.g., two substituents together form a ring); [0081] substituted hydrocarbon substituents, that is, substituents containing non- hydrocarbon groups which, in the context of this invention, do not alter the predominantly hydrocarbon nature of the substituent (e.g., halo (especially chloro and fluoro), hydroxy, alkoxy, mercapto, alkylmercapto, nitro, nitroso, and sulfoxy); hetero substituents, that is, substituents which, while having a predominantly hydrocarbon character, in the context of this invention
- Heteroatoms include sulfur, oxygen, and nitrogen.
- no more than two, or no more than one, non- hydrocarbon substituent will be present for every ten carbon atoms in the hydrocarbyl group; alternatively, there may be no non-hydrocarbon substituents in the hydrocarbyl group.
- compositions, methods, and devices are described in terms of “comprising” various components or steps (interpreted as meaning “including, but not limited to”), the compositions, methods, and devices can also “consist essentially of' or “consist of' the various components and steps, and such terminology should be interpreted as defining essentially closed-member groups.
- the term "about” means that a value of a given quantity is within ⁇ 20% of the stated value. In other embodiments, the value is within ⁇ 15% of the stated value. In other embodiments, the value is within ⁇ 10% of the stated value. In other embodiments, the value is within ⁇ 5% of the stated value. In other embodiments, the value is within ⁇ 2.5% of the stated value. In other embodiments, the value is within ⁇ 1% of the stated value.
- wt % as used herein shall refer to the weight percent based on the total weight of the composition.
- the instant disclosure is suitable for lubricant formulations exhibiting improved piston cleanliness ratings over lubricant formulations having only one of the two dispersants of the dispersant additive package, which may be better understood with reference to the following examples:
- Example A PolvO -decene) succinc anhydride (PDSA)
- the polymer is heated to 160 °C under positive N2 pressure.
- Maleic anhydride (377 g) is charged to the heated addition funnel (to maintain it in liquid phase, and t-butylperoxide (149 g) is charged to the syringe; both the maleic anhydride and peroxide are added simultaneously over 2 hours.
- the reaction mixture is stirred for an additional hour at 160 °C.
- the product mixture is raised to 190 °C and purged with nitrogen (4 SCFH) to remove unreacted maleic anhydride.
- the product mixture is cooled to ambient temperature and collected without further purification as a dark orange liquid.
- a series of 0W-20 engine lubricants in Group III and polyalphaolefm (PAO) base oils of lubricating viscosity are prepared containing the dispersant additives described above as well as conventional additives including polymeric viscosity modifier, overbased detergents, antioxidants (combination of phenolic ester and diarylamine), zinc dialkyl dithiophosphate (ZDDP), as well as other performance additives as follows (Table 1).
- the calcium, magnesium, phosphorus, zinc and ash contents of each of the examples are also presented in the table in part to show that each example has a similar amount of these materials and so provide a proper comparison between the comparative and invention examples.
- additives include pourpoint depressant, friction modifier, and anti-foam agent
- Engine lubricating compositions are evaluated in bench and engine tests designed to evaluate the ability of the lubricant, and thus the detergent, to prevent deposit formation, provide cleanliness, reduce or prevent acid-mediated wear or degradation of the lubricant, and provide sludge handling.
- the lubricant examples are subjected to the engine test VW TDI CEC L-78-99 test, also known as the PV1452 test (Table 2).
- the test is regarded as an industry standard and is a severe assessment of a lubricant's performance capabilities.
- the test employs a 4-cylinder, 1.9 liter, 81 kW passenger car diesel engine, which is a direct injection engine in which a turbocharger system is used to increase the power output of the unit.
- the industry test procedure consists of a repeating cycle of hot and cold running conditions. This involves a 30 minute idle period at zero load followed by 180 minutes at full load and 4150 rpm. In the standard test, the entire cycle is then repeated for a total of 54 hours. In this 54 hour period the initial oil fill of 4.5 liters of test lubricant is not topped up.
- the pistons are rated against what is known as the DIN rating system.
- the three piston-ring grooves and the two piston lands that lie between the grooves are rated on a merit scale for deposits and given a score out of 100 by a method known to those skilled in the art.
- the five scores are then averaged to give the overall piston cleanliness merit rating.
- the scores for each of the four pistons are then averaged to afford the overall piston cleanliness for the test.
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Abstract
Description
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US201862777470P | 2018-12-10 | 2018-12-10 | |
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TWI826024B (en) * | 2022-09-30 | 2023-12-11 | 睿映科技股份有限公司 | Long-lasting vacuum pump oil and method of manufacturing the same |
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2019
- 2019-12-10 US US17/311,916 patent/US20220098509A1/en not_active Abandoned
- 2019-12-10 WO PCT/US2019/065364 patent/WO2020123438A1/en unknown
- 2019-12-10 CA CA3122566A patent/CA3122566A1/en active Pending
- 2019-12-10 CN CN201980084999.3A patent/CN113227334B/en active Active
- 2019-12-10 JP JP2021532867A patent/JP2022514478A/en active Pending
- 2019-12-10 EP EP19828514.0A patent/EP3894526A1/en not_active Withdrawn
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CN113227334B (en) | 2022-11-15 |
JP2022514478A (en) | 2022-02-14 |
WO2020123438A1 (en) | 2020-06-18 |
US20220098509A1 (en) | 2022-03-31 |
CN113227334A (en) | 2021-08-06 |
CA3122566A1 (en) | 2020-06-18 |
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