US2652365A - Manufacture of grease compositions - Google Patents
Manufacture of grease compositions Download PDFInfo
- Publication number
- US2652365A US2652365A US101028A US10102849A US2652365A US 2652365 A US2652365 A US 2652365A US 101028 A US101028 A US 101028A US 10102849 A US10102849 A US 10102849A US 2652365 A US2652365 A US 2652365A
- Authority
- US
- United States
- Prior art keywords
- grease
- soap
- oil
- concentrate
- temperature
- 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.)
- Expired - Lifetime
Links
- 239000004519 grease Substances 0.000 title claims description 150
- 239000000203 mixture Substances 0.000 title claims description 52
- 238000004519 manufacturing process Methods 0.000 title claims description 28
- 239000012141 concentrate Substances 0.000 claims description 56
- 239000003349 gelling agent Substances 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 13
- 239000000344 soap Substances 0.000 description 85
- 239000003921 oil Substances 0.000 description 64
- 235000019198 oils Nutrition 0.000 description 59
- 235000014113 dietary fatty acids Nutrition 0.000 description 22
- 239000000194 fatty acid Substances 0.000 description 22
- 229930195729 fatty acid Natural products 0.000 description 22
- -1 undecyl ricinoleate Chemical compound 0.000 description 19
- 239000002253 acid Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 17
- 150000004665 fatty acids Chemical class 0.000 description 16
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 15
- 150000007513 acids Chemical class 0.000 description 15
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 12
- 229910052744 lithium Inorganic materials 0.000 description 12
- 125000004432 carbon atom Chemical group C* 0.000 description 11
- 238000007865 diluting Methods 0.000 description 11
- 150000002148 esters Chemical class 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 229920001515 polyalkylene glycol Polymers 0.000 description 11
- 239000002002 slurry Substances 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 8
- 239000012071 phase Substances 0.000 description 8
- 239000000499 gel Substances 0.000 description 6
- 125000005456 glyceride group Chemical group 0.000 description 6
- 239000003112 inhibitor Substances 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- ULQISTXYYBZJSJ-UHFFFAOYSA-N 12-hydroxyoctadecanoic acid Chemical compound CCCCCCC(O)CCCCCCCCCCC(O)=O ULQISTXYYBZJSJ-UHFFFAOYSA-N 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- KIHBGTRZFAVZRV-UHFFFAOYSA-N 2-Hydroxyoctadecanoic acid Natural products CCCCCCCCCCCCCCCCC(O)C(O)=O KIHBGTRZFAVZRV-UHFFFAOYSA-N 0.000 description 4
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 4
- 125000002947 alkylene group Chemical group 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 4
- 239000004359 castor oil Substances 0.000 description 4
- 235000019438 castor oil Nutrition 0.000 description 4
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 4
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 4
- 235000015110 jellies Nutrition 0.000 description 4
- 239000008274 jelly Substances 0.000 description 4
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid group Chemical group C(CCCCCCC\C=C/CCCCCCCC)(=O)O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 4
- 229920001223 polyethylene glycol Polymers 0.000 description 4
- 239000002202 Polyethylene glycol Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 235000021323 fish oil Nutrition 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 229940059904 light mineral oil Drugs 0.000 description 3
- LPRVNTWNHMSTPR-UHFFFAOYSA-M lithium;2-hydroxyoctadecanoate Chemical compound [Li+].CCCCCCCCCCCCCCCCC(O)C([O-])=O LPRVNTWNHMSTPR-UHFFFAOYSA-M 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- IPCSVZSSVZVIGE-UHFFFAOYSA-N palmitic acid group Chemical group C(CCCCCCCCCCCCCCC)(=O)O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000001953 recrystallisation Methods 0.000 description 3
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 150000003460 sulfonic acids Chemical class 0.000 description 3
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 2
- 125000003504 2-oxazolinyl group Chemical class O1C(=NCC1)* 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
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 2
- 229920002367 Polyisobutene Polymers 0.000 description 2
- 239000004964 aerogel Substances 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 239000002199 base oil Substances 0.000 description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 2
- 239000008116 calcium stearate Substances 0.000 description 2
- 235000013539 calcium stearate Nutrition 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- 239000010685 fatty oil Substances 0.000 description 2
- 150000002334 glycols Chemical class 0.000 description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 2
- HGPXWXLYXNVULB-UHFFFAOYSA-M lithium stearate Chemical compound [Li+].CCCCCCCCCCCCCCCCCC([O-])=O HGPXWXLYXNVULB-UHFFFAOYSA-M 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000000693 micelle Substances 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 235000021313 oleic acid Nutrition 0.000 description 2
- 150000002889 oleic acids Chemical class 0.000 description 2
- 150000003017 phosphorus Chemical class 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- WBHHMMIMDMUBKC-XLNAKTSKSA-N ricinelaidic acid Chemical compound CCCCCC[C@@H](O)C\C=C\CCCCCCCC(O)=O WBHHMMIMDMUBKC-XLNAKTSKSA-N 0.000 description 2
- 229940066675 ricinoleate Drugs 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 150000003346 selenoethers Chemical class 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000003784 tall oil Chemical class 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- VACHUYIREGFMSP-UHFFFAOYSA-N (+)-threo-9,10-Dihydroxy-octadecansaeure Natural products CCCCCCCCC(O)C(O)CCCCCCCC(O)=O VACHUYIREGFMSP-UHFFFAOYSA-N 0.000 description 1
- ICLYJLBTOGPLMC-KVVVOXFISA-N (z)-octadec-9-enoate;tris(2-hydroxyethyl)azanium Chemical compound OCCN(CCO)CCO.CCCCCCCC\C=C/CCCCCCCC(O)=O ICLYJLBTOGPLMC-KVVVOXFISA-N 0.000 description 1
- QMMJWQMCMRUYTG-UHFFFAOYSA-N 1,2,4,5-tetrachloro-3-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=C(Cl)C(Cl)=CC(Cl)=C1Cl QMMJWQMCMRUYTG-UHFFFAOYSA-N 0.000 description 1
- JPFGKGZYCXLEGQ-UHFFFAOYSA-N 1-(4-methoxyphenyl)-5-methylpyrazole-4-carboxylic acid Chemical compound C1=CC(OC)=CC=C1N1C(C)=C(C(O)=O)C=N1 JPFGKGZYCXLEGQ-UHFFFAOYSA-N 0.000 description 1
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical group CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 1
- BMVXCPBXGZKUPN-UHFFFAOYSA-N 1-hexanamine Chemical compound CCCCCCN BMVXCPBXGZKUPN-UHFFFAOYSA-N 0.000 description 1
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 description 1
- 229940114072 12-hydroxystearic acid Drugs 0.000 description 1
- XKZQKPRCPNGNFR-UHFFFAOYSA-N 2-(3-hydroxyphenyl)phenol Chemical compound OC1=CC=CC(C=2C(=CC=CC=2)O)=C1 XKZQKPRCPNGNFR-UHFFFAOYSA-N 0.000 description 1
- OWTQQPNDSWCHOV-UHFFFAOYSA-N 2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol Chemical compound OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO OWTQQPNDSWCHOV-UHFFFAOYSA-N 0.000 description 1
- KUNNUNBSGQSGDY-UHFFFAOYSA-N 2-butyl-6-methylphenol Chemical compound CCCCC1=CC=CC(C)=C1O KUNNUNBSGQSGDY-UHFFFAOYSA-N 0.000 description 1
- FQTYOWQQLJKWKT-UHFFFAOYSA-N 2-hydroxy-2,3-dimethyloctanoic acid Chemical compound CCCCCC(C)C(C)(O)C(O)=O FQTYOWQQLJKWKT-UHFFFAOYSA-N 0.000 description 1
- MUHFRORXWCGZGE-KTKRTIGZSA-N 2-hydroxyethyl (z)-octadec-9-enoate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCCO MUHFRORXWCGZGE-KTKRTIGZSA-N 0.000 description 1
- RFVNOJDQRGSOEL-UHFFFAOYSA-N 2-hydroxyethyl octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCCO RFVNOJDQRGSOEL-UHFFFAOYSA-N 0.000 description 1
- JBIJLHTVPXGSAM-UHFFFAOYSA-N 2-naphthylamine Chemical compound C1=CC=CC2=CC(N)=CC=C21 JBIJLHTVPXGSAM-UHFFFAOYSA-N 0.000 description 1
- IQUPABOKLQSFBK-UHFFFAOYSA-N 2-nitrophenol Chemical compound OC1=CC=CC=C1[N+]([O-])=O IQUPABOKLQSFBK-UHFFFAOYSA-N 0.000 description 1
- MKJHXLKVZNDNDB-UHFFFAOYSA-N 2-phenyloctadecanoic acid Chemical class CCCCCCCCCCCCCCCCC(C(O)=O)C1=CC=CC=C1 MKJHXLKVZNDNDB-UHFFFAOYSA-N 0.000 description 1
- HNNQYHFROJDYHQ-UHFFFAOYSA-N 3-(4-ethylcyclohexyl)propanoic acid 3-(3-ethylcyclopentyl)propanoic acid Chemical compound CCC1CCC(CCC(O)=O)C1.CCC1CCC(CCC(O)=O)CC1 HNNQYHFROJDYHQ-UHFFFAOYSA-N 0.000 description 1
- OCKGFTQIICXDQW-ZEQRLZLVSA-N 5-[(1r)-1-hydroxy-2-[4-[(2r)-2-hydroxy-2-(4-methyl-1-oxo-3h-2-benzofuran-5-yl)ethyl]piperazin-1-yl]ethyl]-4-methyl-3h-2-benzofuran-1-one Chemical compound C1=C2C(=O)OCC2=C(C)C([C@@H](O)CN2CCN(CC2)C[C@H](O)C2=CC=C3C(=O)OCC3=C2C)=C1 OCKGFTQIICXDQW-ZEQRLZLVSA-N 0.000 description 1
- VJOGZGLNDROOFS-UHFFFAOYSA-N 9,10,12,13-tetrahydroxy-octadecanoic acid Chemical compound CCCCCC(O)C(O)CC(O)C(O)CCCCCCCC(O)=O VJOGZGLNDROOFS-UHFFFAOYSA-N 0.000 description 1
- VACHUYIREGFMSP-SJORKVTESA-N 9,10-Dihydroxystearic acid Natural products CCCCCCCC[C@@H](O)[C@@H](O)CCCCCCCC(O)=O VACHUYIREGFMSP-SJORKVTESA-N 0.000 description 1
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 241001133760 Acoelorraphe Species 0.000 description 1
- 235000021357 Behenic acid Nutrition 0.000 description 1
- 101150039167 Bex3 gene Proteins 0.000 description 1
- 240000002791 Brassica napus Species 0.000 description 1
- 235000004977 Brassica sinapistrum Nutrition 0.000 description 1
- 241000273930 Brevoortia tyrannus Species 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000861718 Chloris <Aves> Species 0.000 description 1
- 241000252203 Clupea harengus Species 0.000 description 1
- MHZGKXUYDGKKIU-UHFFFAOYSA-N Decylamine Chemical compound CCCCCCCCCCN MHZGKXUYDGKKIU-UHFFFAOYSA-N 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- SHBUUTHKGIVMJT-UHFFFAOYSA-N Hydroxystearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OO SHBUUTHKGIVMJT-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- HCPSZQRUACPWRI-UHFFFAOYSA-N Linusic acid Chemical compound CCC(O)C(O)CC(O)C(O)CC(O)C(O)CCCCCCCC(O)=O HCPSZQRUACPWRI-UHFFFAOYSA-N 0.000 description 1
- REYJJPSVUYRZGE-UHFFFAOYSA-N Octadecylamine Chemical compound CCCCCCCCCCCCCCCCCCN REYJJPSVUYRZGE-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 235000019482 Palm oil Nutrition 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 239000004965 Silica aerogel Substances 0.000 description 1
- BCKXLBQYZLBQEK-KVVVOXFISA-M Sodium oleate Chemical compound [Na+].CCCCCCCC\C=C/CCCCCCCC([O-])=O BCKXLBQYZLBQEK-KVVVOXFISA-M 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- RYYWUUFWQRZTIU-UHFFFAOYSA-N Thiophosphoric acid Chemical class OP(O)(S)=O RYYWUUFWQRZTIU-UHFFFAOYSA-N 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000005189 alkyl hydroxy group Chemical group 0.000 description 1
- HUMHYXGDUOGHTG-HEZXSMHISA-N alpha-D-GalpNAc-(1->3)-[alpha-L-Fucp-(1->2)]-D-Galp Chemical compound O[C@H]1[C@H](O)[C@H](O)[C@H](C)O[C@H]1O[C@@H]1[C@@H](O[C@@H]2[C@@H]([C@@H](O)[C@@H](O)[C@@H](CO)O2)NC(C)=O)[C@@H](O)[C@@H](CO)OC1O HUMHYXGDUOGHTG-HEZXSMHISA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- CEGOLXSVJUTHNZ-UHFFFAOYSA-K aluminium tristearate Chemical compound [Al+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CEGOLXSVJUTHNZ-UHFFFAOYSA-K 0.000 description 1
- 229940063655 aluminum stearate Drugs 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 159000000032 aromatic acids Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 150000008378 aryl ethers Chemical class 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- UDTWWXANSJEIGC-UHFFFAOYSA-L barium(2+);2-hydroxyoctadecanoate Chemical compound [Ba+2].CCCCCCCCCCCCCCCCC(O)C([O-])=O.CCCCCCCCCCCCCCCCC(O)C([O-])=O UDTWWXANSJEIGC-UHFFFAOYSA-L 0.000 description 1
- AGXUVMPSUKZYDT-UHFFFAOYSA-L barium(2+);octadecanoate Chemical compound [Ba+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O AGXUVMPSUKZYDT-UHFFFAOYSA-L 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 235000015278 beef Nutrition 0.000 description 1
- 229940116226 behenic acid Drugs 0.000 description 1
- LUFPJJNWMYZRQE-UHFFFAOYSA-N benzylsulfanylmethylbenzene Chemical group C=1C=CC=CC=1CSCC1=CC=CC=C1 LUFPJJNWMYZRQE-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000002385 cottonseed oil Substances 0.000 description 1
- 235000012343 cottonseed oil Nutrition 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- VJHINFRRDQUWOJ-UHFFFAOYSA-N dioctyl sebacate Chemical compound CCCCC(CC)COC(=O)CCCCCCCCC(=O)OCC(CC)CCCC VJHINFRRDQUWOJ-UHFFFAOYSA-N 0.000 description 1
- LTYMSROWYAPPGB-UHFFFAOYSA-N diphenyl sulfide Chemical compound C=1C=CC=CC=1SC1=CC=CC=C1 LTYMSROWYAPPGB-UHFFFAOYSA-N 0.000 description 1
- XIMIGUBYDJDCKI-UHFFFAOYSA-N diselenium Chemical compound [Se]=[Se] XIMIGUBYDJDCKI-UHFFFAOYSA-N 0.000 description 1
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Definitions
- This invention relates to a new and improved method of making grease compositions. More particularly this invention pertains to an improved method of making wide temperature lubricating grease compositions which are extremely stable under static and dynamic conditions.
- this invention comprises a method of making improved stable greases involving two essential features: (1) the making of a grease 2 concentrate containing from 10% to 50% gelling agent, e. g. soaps, said concentrate being made in any conventional Way using a highly viscous oil, the viscosity of which must be above 500 at the cold or heated only slightly to say 80 or 90 C. prior to or while the light oil is being incorporated so as to form the final grease product.
- a grease compositions can be made at low temperatures resulting in a marked saving in fuel, but results in a saving in the handling and transporting of large quantities of material and eliminates the use of expensive equipment necessary for making greases.
- a grease concentrate of this invention can be prepared, packaged and shipped to a desired destination, where it is simply admixed either at room or slightly elevated temperature with the required amount of a suitable light oil and is ready for use.
- the essence of this invention is to prepare a grease concentrate using a highly viscous oil and thereafter diluting said concentrate with a very light oil or oily material to form the nal grease composition.
- Many modifications can be made, one of which is to heat-treat the grease concentrate While it is in the gel phase until a recrystallization and consolidation of the soap crystallites into desired ber form has been attained.
- the gel phase may be defined as a two-phase system comprising solid crystalline soap and a liquid phase consisting of either soap-oil jelly or pure oil.
- This gel phase forms as the grease is cooled from an elevated temperature of above 200 C. at which temperature it is in a jelly phase to a temperature where recrystallization and consolidation of soap crystallites begin to occur, that is, the gel phase.
- the soap-oil mixture Above 200 C. the soap-oil mixture may be regarded as being in a jelly phase in which soap and oil are in a homogeneous mass.
- the soap and viscous oil can be admixed and heated to a temperature of 20D-250 C. until a homogeneous mass has been attained. Modifying agents such as antioxidants, corrosion inhibitors, etc. can be added at this point.
- the homogeneous grease concentrate is then slowly cooled to below its jelly phase but above 100 C. and heat-treated in this temperature range in a quiescent state until the desired soap ber growth has been attained.
- This grease concentrate which may contain to 50% soap can be stored, and diluted with a light cil at a convenient time (below about 100 C.) or cooled to room temperature, or preferably to 80 or 90 C. and diluted with a light oil or oily material until the soap content in the nal composition Varies from 4 to 15% and preferably from 6 to 10%. If desired the finished product can be homogenized prior to being packaged.
- a viscous oil is meant to include an oil having a viscosity of from 500 at 100 F. to 2000 at 100 F. SUS and higher.
- the oils may be natural or synthetic or mixtures thereof.
- light oils is meant to include any suitable liquid having a viscosity below 300 at 100 F. and may include spray oils, gas oil, light petroleum distillates, organic esters, e. g., 2-ethyl hexyl sebacate, butyl acetate, undecyl ricinoleate, butyl oleate, butyl stearate, etc.; low molecular weight alkylene oxide-mono hydroxyl alcohol copolymers, olefin polymers, etc.
- oils of 50 to 300 SUS at 100 F. are suitable for use as light oils.
- the gelling agents used to form the grease may be soaps of fatty acids and/or their glycerides.
- the saponiable material may be fatty acids having from 12 to 32 carbon atoms and they may be saturated, unsaturated or polarsubstituted fatty acids, ⁇ such as capric, lauric, myristic, palmitic, stearic, arachidic, behenic, lignoceric, myristoleic, palmitoleic, oleic, linoleic, cottonseed oil fatty acid, palm oil fatty acids, hydrogenated fish oil fatty acids, ricinoleic, erucic acids and their mixtures and/or their glycerides, such as lard, beef, rapeseed, palm, menhaden, herring oils, etc.
- Other acids may be included among which are: acids produced by oxidation of petroleum oil .and waxes, rosin acids, tall oil acids, abietic acids; naphthenic acids, petroleum s
- a particularly preferred class of saponifiable materials are the hydroxy fatty .acids and their f glycerides, such as dimethyl hydroxy caprylic acid, dimethyl hydroxy capric, hydroxy physetoleic acid, ricinoleic acid, ricinelaidic acid, 12- hydroxy stearic acid, 9,10-dihydroxy stearic acid, i-hydroxy palmitic acid, linusic acid, sativic acid, lanoceric acid, dihydroxy gadoleic, ⁇ hydroxy behenic acid, quince-oil acid and the like.
- the preferred hydroxy fatty acids are those in which the hydroxy group is at least 12 carbon atoms removed from the carboxyl group.
- hydroxy fatty acids having at least l0 carbon atoms and up to about 32 carbon atoms and preferably those having between 14 and 32 carbon atoms in the molecule.
- free fatty yacids containing a hydroxy radical their glycerides can be used such as castor oil or hydrogenated castor oil or mixtures of free hydroxy fatty acids and their glycerides can be used. Mixtures of hydroxy and non-hydroxy fatty acids can be used to form soaps.
- the sapcnifying agent used to make the soap may be any oxide or hydroxide of one or several of metals selected from Groups I, II, III, IV, VI, VII and VIII.
- the cation of the soaps may be represented by Na, K, Li, Cs, Ca,
- soaps can be used and the soaps can be made in situ or premade soaps can be used to form the grease.
- Specific examples of preferred soaps and mixtures thereof are: lithium stearate, lithium hydroxystearate, lithium ricinoleate, lithium soap of hydrogenated sh-oil fatty acids, lithium soap of mixed stearic and hydroxystearic acid, sodium stearate, sodium hydroxystearate, sodium oleate, potassium oleate, potassium rosinate, calcium stearate, caicium hydroxystearate, aluminum stearate, aluminum soap of sh-oil fatty acids, barium hydroxystearate, barium stearate, ⁇ lithium soap of mixed stearic and hydroxystearic acids, lithium soap of mixed oleic and hydroxystearic acid, sodium soap of stearic and hydroxystearic acid; aluminum soap of lstearic and oleic acid, aluminum ric
- soaps instead of using only soaps as the gelling agent, mixtures of soaps and other gelling agents, such as organic or inorganic aerogels, e. g. silica aerogels and alumina aerogels can be used.
- organic or inorganic aerogels e. g. silica aerogels and alumina aerogels
- the soap content of grease compositions of this invention may Vary over wide limits and may be as high as 50%.
- suitable grease-forming lubricant bases it is possible by choice of suitable grease-forming lubricant bases to manufacture satisfactory lubricating greases containing only about 10% or less by weight of the soap mixtures. Very satisfactory products are obtained with a total lsoap content of about 3% by weight on the finished grease.
- the invention can be carried out as follows: Into a slurry tank l a pre-made soap or soap mixtures or materials used for making desired soaps and the highly viscous oil are added through lines '2 and 3, respectively. If other additives such as oxidation and corrosion inhibitors, anti-bleeding agent,
- oiliness agents and the like are added to the grease they can be introduced into the slurry tank l through conduit 2 at a convenient time.
- the oil and soap or soap-forming materials are heated to around 120 C. for a time sufficient t0 drive out most of the moisture which might be present and is then led through conduit 4, through pump B and into heating equipment 9 where the grease is heated to a temperature of from 200 to 250 C. and worked until a homogeneous mixture has been attained.
- This hot grease concentrate which may contain from l10% to 50% soap may be conducted into a grease storage tank 26 through lines 'I and 28 and at a convenient time conducted through pump 20, and lines 2l and I2 into the final grease-forming kettle I3 where it may be admixed at room temperature or preferably heated to about C. with a light oil (50-300 SUS at 100?) which is introduced into a kettle I3 through line I4.
- the light oil 50-300 SUS at 100
- I amount of light oil used depends upon the concentration of soap desired in the unal grease. Generally an :amount of light oil is used so that the iinal soap content should vary from 6% to 15% by weight. If desired the hot grease concentrate may be lead directly into kettle I3 through lines 'I, 28, and I5, admixed with light oil from line I4 and Worked into the final grease composition.
- a ⁇ preferred embodiment of this invention is to heat-treat the grease lconcentrate prior to Working it into the final grease in kettle or votator I3. This is accomplished by regulating the iiow of the grease concentrate from heating tank 9 so that by the time it reaches the time or heat-treatment tank I0 the temperature of the grease has dropped below 200 C. but is above 100 C. The grease concentrate is allowed to remain in tank I0 in a quiescent state within the above temperature range for a time suiiicient to form the desired ber length and structure. The heat-treated grease concentrate may then be sent to storage tank 26 or sent to the final greaseforming kettle I3 through pump II and line I2 and Worked into the desired grease as described above.
- the nal grease composition may be sent to storage tank I9 through lines I6 and IB or it may be-sent directly to homogenizer '23 at a temperature ranging from room temperature to about 65 C. and then discharged through line 24 into packing container 25. If desired, a portion of the nished grease from kettle I3 can be returned to slurry tank I through lines I6 and 29.
- Examplel Composition of the grease was as follows:
- the grease concentrate is cooled and introduced into the heat-treatment tank III where it is kept at about 160 C. for about 4 hours in a quiescent state.
- the grease is then conducted through line 2
- the remaining light mineral oil 100 SUS at 100 F. viscosity is introduced into kettle I3 through line I4 and the entire mass worked until a homogeneous grease has been attained.
- the grease -concentrate can be admixed with the light oil at room temperature.
- the grease is then lead to homogenizer 23 for working into a homogeneous consistency and texture, after which it is packed in containers 25.
- Greases compounded by the above method have excellent mechanical stability and are particularly suitable for low-temperature operations.
- Example 2 Following the above procedure an excellent grease was prepared in which dioctyl phthalate was used instead of the light mineral oil.
- Example 2A A lithium soap and a mineral oil having a viscosity (Saybolt) of 1000 at 100 F. were introduced into slurry tank I and the mixture heated until a homogeneous mass was formed. The slurry was then led through conduit 4 and pump 6 into heating tank 9 where the grease concentrate was heated to around 1GO-170 C. (1-8 hours) until la homogeneous gel was formed. The grease concentrate was then conducted through lines I and 28 into storage tank 20 where the concentrate was cooled to around C. and thereafter conducted into tank I 3 through line 2?.
- Saybolt a mineral oil having a viscosity
- the remaining light mineral oil (100 SUS at 100 F.) was introduced into kettle I3 through line i4 until the soap content varied from 4 to 15% of the total composition and the entire mass was Worked until a homogeneous grease had been attained. The grease was then led to homogenizer 23 for working into a homogeneous consistency and texture, and then packed in containers 25.
- Example 3 ⁇ A soda base grease composed of the ingredients of Example 1 was prepared by a diierent method from that described in Example 1 and the result was a much poorer grease. This grease was prepared by admixing the soap ingredients, stabilizer and all of the mineral oil (which had a blended viscosity of VSUS at 100 F.) in slurrying tank I. The slurry was then lead to heating tank 9, heat-treatment tank I0 land then into homogenizer 23 for working and then packaged.
- the three greases were subjected to the Shell roll stability test in order to determine their mechanical stabilities.
- the roll stability tester is a simulated roller bearing and consi-sts of a 90 mm. I. D. x 180 mm. long cylinder inside of which is a 5 kg. weighted roller, G10 mm. diam. x 176 mm. long.
- the grease to be tested is placed in the free space and the outer cylinder is rotated on its axis at R. P. M.
- the grease is worked by rolling action of the inner cylinder.
- the stability of a grease is expressed as hours of rolling before its breakdown, and the samples prepared in the three examples behaved as follows:
- Particularly desirable stabilizing agents which can; bea used with grease compositions of this invention are the alkylene. glycol and/or alkylene thiogl-'yocl polymers aswell as theirmono-esters and ether polymeric derivatives.
- n and a are integers.
- the polymeric. alkylene glycols as represented by the above general formula should be such that the factor a times the number of carbon atoms Witlsdn the brackets should be at least 6 and more.
- the polymeric alkylene glycols can be made by polymerizing'in the presence of a ycatalyst, such as iodine, hydriodic acid and the like, ethylene, propylene, isobutylene, n-butylene oxides and/or their mixtures.
- a ycatalyst such as iodine, hydriodic acid and the like, ethylene, propylene, isobutylene, n-butylene oxides and/or their mixtures.
- Such polymers can also be produced by reacting a monohydric alcohol with an alkylene oxide.
- a suitable product can be made by reacting n-butanol with propylene oxide at between about 212 to 230 F. under pressure and in. the presence of an alkali catalyst.
- the polymerized higher polyalkylene glycols having betWeenVZ and 6 carbon atoms in the al-V kylene group are most effective as additives of this invention and those containing the ethylene andpropylene groups are preferred.
- the average molecular'weight of the polyalkylene glycols may be from about 200 to about '7000 and the preferred molecular weight being from about 1000 to. 6000.
- the higher polyalkylene glycols are composed of mixtures of severalf polymers, for example, a polyethylene glycol having an average molecular weight of 400 consists of various glycols varying from a minor amount of monethylene glycol and increasing up to the pentadecaethylene glycol. Therefore, it is the average molecular weight which is specied and wherein the present specification, polyalkylene glycols or polyethylene glycols are referred to, they comprise the higher glycols having an average molecular weight in excess of 200 and preferably in. excess of 400, those with an average molecular'weightl of between about 1'000 to 1500 being very eective in carrying out the present invention, Y
- the ester and ether derivatives can be used.
- the esters can be made from a variety of acids having between 1 to about 22 carbon atoms and preferably between about 10 to 18 carbon atoms. Acids which may be used are the aliphatic, aromatic, cyclic, sulfonic acids and the like. Fatty acids and especially the higher fatty acids are preferred and include such acids as lauric, myristic, palmitic, stearic, arachidic, behenic, oleic, ricinoleic, hydroxystearic, phenylacetic, phenyl stearic acids and the like.
- esters such acids as naphthenic acid, oil-soluble petroleum sulfonic acids, tall oil fatty acids, aromatic acids, e. g. salicylic and phthalic acids and the like may be used to form the esters.
- esters of this type are the polyethylene glycol monostearate, polyethylene glycol monooleate and the like.
- Ether derivatives of polyalkylene glycols may be made by any conventional method and the aromatic ethers of polyalkylene glycols having the general formula thiourea derivatives, e.
- Ar is an aromatic radicalV having atri tached thereto at least. one alkyl radical denoted. by R' having from 1 to about 8 carbon atoms. and wherein YV is a, fatty acid derivative, n, m. and a are integers as in I and q is a number se,- lected from the group consisting of zero or- 1.
- oxidation inhibitors can be added to grease compositions of this invention such as N-butyl paraphenylene diamine.
- Also effective as. oxidation inhibitors. are alpha or beta naphthylamine, phenyl-alpha or beta naphthyh amine, alpha-alpha, beta-beta, or alpha-.beta dinaphthylamine, diphenylamine, tetramethyl diamine diphenylmethane, p. e t r ole u m alkyl phenols, and 2,4-diterti'ary butyl 6-methyl phenol.
- Corrosion inhibitors which are particularly apa plicable with compositions of this invention are N-primary amines containing at least 6 and more than le carbon atoms in the molecule such as. hexylamine, octylamine, decylamine, dodecyl! amine, octadecylamine, heterocyclic nitrogen containing organic compounds such as alkyl sub-e stituted oxazolines and oxazoline salts of' fatty acids and nitrophenol.
- Extreme pressure agents can be added to such grease and the preferred agents comprise esters of phosphorus acids such as triaryl, alkylhydroxy, aryl, or aralkyl phosphates, thiophosphates or phosphites, etc., neutral aromatic sulfur compounds such as diaryl suldes and polysulfides, e. g. diphenyl sulfide, dicresol sulfide, dibenzyl sulfide, methyl butyl diphenol sulfide, etc., dphenyl selenide and diselenide, dicresol selenide, and polyselende, etc., sulfurized fatty oils or esters of fatty acids and monohydric alcohols, e.
- esters of phosphorus acids such as triaryl, alkylhydroxy, aryl, or aralkyl phosphates, thiophosphates or phosphites, etc.
- neutral aromatic sulfur compounds such as diaryl suldes and
- sperm oil, jojoba oil, etc. in which the sulfur tightly bound; sulfurized long-chain clans obtained by dehydrogenation or cracking of wax; sulfurized phosphorized fatty oils, acids, esters and ketones, phosphorus acid esters having sulfurized organic radicals, such as esters of phosphoric or phosphorus acids with hydroxy fatty acids, chlorinated hydrocarbons such as chlorinated paraflins, aromatic hydrocarbons, terpenes, mineral lubricating oils, etc.; or chlori nated esters of fatty acids containing the chlorine in positions other than the alpha position.
- anti-Wear agents such as oil-solubleurea or g. urethanes, allophanates, carbazides, carbazones, etc.; or rubber, polyisobutylene, polyvinyl esters, etc.; VI improvers such as polyisobutylene having a molecular Weight above about 800, voltolized paraffin Wax, unsaturated polymerized esters of fatty acids and monohydric alcohols, etc.; oiliness agents such as stearic and oleic acids and pour point depressors such as chlorinated naphthalene to further lower the pour point of the lubricant.
- anti-Wear agents such as oil-solubleurea or g. urethanes, allophanates, carbazides, carbazones, etc.
- rubber polyisobutylene, polyvinyl esters, etc.
- VI improvers such as polyisobutylene having a molecular Weight above about 800, voltolized paraffin Wax,
- the amount of the above additives can be added to grease compositions of this invention in around about 0.01% to less than 10% by Weight and preferably 0.1% to 5.0% by Weight.
- Greases of this invention are applicable for general automotive uses, and are excellent aircraft greases, industrial greas'es and the like.
- the method of making a wide temperature grease composition comprising admixing an oil having a viscosity above 500 at F. SUS with a grease-forming gelling agent in an amount so that the gelling agent comprises from 10% to about 50% of the mixture, heating until a homogeneous non-crystalline mass has formed, cooling said grease concentrate to a temperature position ranges from about below 100 C., and admixing into said grease concentrate at this temperature a light oil having a viscosity below 300 at 100 F. SUS until the content of the gelling agent based on the total comto about by weight.
- the method of making a wide temperature ⁇ grease composition comprising admixing an oil having a viscosity above 500 at 100 F. SUS with a grease-forming gelling agent in an amount so that the gelling agent comprises from 10% to about of the mixture, heating said mixture to a temperature above 200 C. until a homogeneous non-crystalline mass has formed, cooling said grease concentrate to a temperature below 100 C. and admixing into said grease concentrate at this temperature a light oil having a viscosity below 300 at 100 F. SUS until the content of the gelling agent based on the total composition ranges from about 5% to about 15% by weight.
- the method of making a wide temperature grease composition comprising admixing an oil having a viscosity above 500 at 100 F. SUS with a grease-forming gelling agent in an amount so that the gelling agent comprises from 10% to about 50% of the mixture, heating said mixture until a homogeneous non-crystalline mass has formed, reducing the temperature to a point i where recrystallization occurs but not below 110 C. and maintaining the grease concentrate in this temperature range for from about 1 to 8 hours, cooling thereafter said grease concentrate to below 100 C. and diluting said grease with a r light oil having a Viscosity at 100 F. of from 75 to 300 SUS at 100 F. until the soap content of the grease varies from 4 to about 15% by weight.
- the method of making a soda soap grease which comprises forming a grease concentrate containing 10% to 50% of soda soap in a highly viscous oil having a viscosity at 100 F. of 500 to 1000 SUS, maintaining said grease concentrate at a temperature of from about 160 to about 170 C. for from about 1 to 8 hours, cooling thereafter said grease concentrate to below 100 C. and diluting said grease with a light oil having a viscosity at 100 F. of from 75 to 300 SUS until the soap content of the grease varies from about 4% to about 15% by weight.
- rEhe method of making a lithium soap grease which comprises forming a grease concentrate containing 10% to 50% of lithium soap in a highly viscous oil having a Viscosity at 100 F. of 500 to 1000 SUS, maintaining said grease concentrate at a temperature from 160 to about 170 C. for from 1 to 8 hours, cooling thereafter said grease concentrate to below 100 C. and diluting said grease with a light oil having a viscosity at 100 F. of from 75 to 300 SUS until the soap content of the grease varies from about 4% to about 15% by weight.
- a soda soap grease which comprises forming a grease concentrate containing 10% to 50% of soda soap in a highly viscous oil having a viscosity at 100 F. of 500 to 1000 SUS, maintaining said grease concentrate at a temperature of from 160 to about 170 C. for from 1 to 8 hours, cooling thereafter said grease concentrate to below 100 C. and diluting said grease with dioctyl phthalate until the soap content of the grease varies from about 4% to about 15% by weight.
- the method of making a lithium soap grease which comprises forming a grease concentrate containing 10% to 50% of lithium soap in a highly viscous oil having a viscosity at 100 F. of 500 to 1000 SUS, maintaining said grease concentrate at a temperature of from about to C. for from 1 to 8 hours, cooling thereafter said grease concentrate to below 100 C. and diluting said grease with dioctyl phthalate until the soap content of the grease varies from about 4% to about 15% by weight.
- the method of making a soda soap grease which comprises forming a grease concentrate containing 10% to 50% of soda soap and from 0.01% to about 1% polyalkylene glycol in a highly viscous oil having a viscosity at 100 F. of 500 to 1000 SUS, maintaining said grease concentrate at a temperature of from 160 to about 170 C. for from 1 to 8 hours, cooling thereafter said grease concentrate to below 100 C. and diluting said grease with a, light oil having a viscosity at 100 F. of from 75 to 300 SUS until the soap content of the grease varies from about 4% to about 15% by weight.
- the method of making a lithium soap grease which comprises forming a grease concentrate containing 10% to 50% of lithium soap and from 0.01% to 1% polyalkylene glycol in a highly viscous oil having a Viscosity at 100 F. of 500 to 1000 SUS, maintaining said grease concentrate at a temperature of from about 160 to C. for from 1 to 8 hours, cooling thereafter said grease concentrate to below 100 C. and diluting said grease with a light oil having a viscosity at 100 F. of from 75 to 300 SUS until the soap content of the grease varies from about 4% to about 15% by weight.
- the method of making a soda soap grease of hydroxy fatty acids of high molecular weight which comprises forming a grease concentrate containing around 50% soap and from 0.01 to about 1% polyalkylene glycol in a highly viscous tent of the grease is around 8% by weight.
- the method of making a soda soap grease which comprises forming a grease concentrate containing 10% to 50% of soda soap in a highly 'viscous oil having a viscosity at 100 F. of 500 to 2000 SUS, maintaining said grease concentrate fat a temperature of from about 160 to about 170 C. for from about 1 to 8 hours, thereafter Icc'ioling said grease concentrate to below 100 C. and diluting said grease with a light oil having a viscosity at 100 F, of from 75 to 300 SUS until the "soap content of the ygrease is from about 4% to about 15% by weight.
- the method of makin'gan Ialkali metal soap grease which comprises forming -a grease concentrate containing V10% ⁇ to 50% of 'alkali metal *soap in a highly viscous oil having a viscosity 'at 100 F. of 500 to 2000 SUS, maintaining said grease concentrate at aV temperature of from about 160 to about 170 C. lfor vfrom about 1 to 8 hours, thereafter cooling said grease concen- 1:2 tirate tb below 100 C. and diluting said grease with va light oil having a viscosity atf100 *of from '15 1-,0-300 sus until the soap content of the grease is from about 4% to about 15% by Weight.
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- Chemical & Material Sciences (AREA)
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Description
Sept. 15, 1953 RfJ. MOORE ETAL MANUFACTURE OF GREASE COMPOSITIONS Filed June 24. 1949 Patented Sept. 15, 1953 MANUFACTURE 0F GREASE COMPOSITIONSl Robert J. Moore, Oakland, and John Norton Wilson, Berkeley, Calif., assignors to Shell Development Company, San Francisco, Calif., a
corporation of Delaware Application June 24, 1949, Serial No. 101,028
18 Claims.
This invention relates to a new and improved method of making grease compositions. More particularly this invention pertains to an improved method of making wide temperature lubricating grease compositions which are extremely stable under static and dynamic conditions.
It is well established that the quality of a grease varies substantially with the method of making it. Thus lubricating grease compositions made from identical materials but in which the method of making said grease is varied will in one case result in a grease of excellent quality and in another case be extremely poor.
One of the most important and controlling factors in the manufacture of a good grease is the selection of a proper base oil for the soap or gelling agent used in making the grease. For example, in the manufacture of lithium soap greases suitable for low temperature use a light viscosity base oil must be used. However, such oils present a serious problem in that they present a fire hazard problem since in making grease an elevated temperature must be used. Also greases made from light oils are at times incapable of retaining the grease structure, particularly under dynamic conditions, resulting in poor lubrication of bearing surfaces and bleeding under storage or stable conditions. lThe same problem is also presented with soaps other than lithium soaps- Very high viscosity oils are also to be avoided for making greases for it is difficult to disperse soaps in such oils inasmuch as soap fibers which ultimately govern the quality of a grease have little if any change of growing to a fbrous or micelle structure in such oils so as to form a grease of good stability.
It is an object of this invention to produce greases by a novel process. Another object of this invention is to produce greases by a novel process which are stable under static and dynamic conditions. Another object of this invention is to produce greases by a novel process which resists bleeding. Still another object of this invention is to provide a method of making greases having a denite micelle or soap structure. Still another object of this invention is to provide a method of making greases in a batch or continuous process whereby mechanically stable, non-bleeding products are produced. Still another object of this invention is to produce a grease of desired consistency with a minimum amount of soap.
Broadly, this invention comprises a method of making improved stable greases involving two essential features: (1) the making of a grease 2 concentrate containing from 10% to 50% gelling agent, e. g. soaps, said concentrate being made in any conventional Way using a highly viscous oil, the viscosity of which must be above 500 at the cold or heated only slightly to say 80 or 90 C. prior to or while the light oil is being incorporated so as to form the final grease product. This feature is not only novel from the point of view that by the process of this invention grease compositions can be made at low temperatures resulting in a marked saving in fuel, but results in a saving in the handling and transporting of large quantities of material and eliminates the use of expensive equipment necessary for making greases. Thus, for example, a grease concentrate of this invention can be prepared, packaged and shipped to a desired destination, where it is simply admixed either at room or slightly elevated temperature with the required amount of a suitable light oil and is ready for use.
As can be noted the essence of this invention is to prepare a grease concentrate using a highly viscous oil and thereafter diluting said concentrate with a very light oil or oily material to form the nal grease composition. Many modifications can be made, one of which is to heat-treat the grease concentrate While it is in the gel phase until a recrystallization and consolidation of the soap crystallites into desired ber form has been attained.
The gel phase may be defined as a two-phase system comprising solid crystalline soap and a liquid phase consisting of either soap-oil jelly or pure oil. This gel phase forms as the grease is cooled from an elevated temperature of above 200 C. at which temperature it is in a jelly phase to a temperature where recrystallization and consolidation of soap crystallites begin to occur, that is, the gel phase. Above 200 C. the soap-oil mixture may be regarded as being in a jelly phase in which soap and oil are in a homogeneous mass.
If the heat-treating step is involved the soap and viscous oil can be admixed and heated to a temperature of 20D-250 C. until a homogeneous mass has been attained. Modifying agents such as antioxidants, corrosion inhibitors, etc. can be added at this point. The homogeneous grease concentrate is then slowly cooled to below its jelly phase but above 100 C. and heat-treated in this temperature range in a quiescent state until the desired soap ber growth has been attained. This grease concentrate which may contain to 50% soap can be stored, and diluted with a light cil at a convenient time (below about 100 C.) or cooled to room temperature, or preferably to 80 or 90 C. and diluted with a light oil or oily material until the soap content in the nal composition Varies from 4 to 15% and preferably from 6 to 10%. If desired the finished product can be homogenized prior to being packaged.
By a viscous oil is meant to include an oil having a viscosity of from 500 at 100 F. to 2000 at 100 F. SUS and higher. The oils may be natural or synthetic or mixtures thereof. By light oils is meant to include any suitable liquid having a viscosity below 300 at 100 F. and may include spray oils, gas oil, light petroleum distillates, organic esters, e. g., 2-ethyl hexyl sebacate, butyl acetate, undecyl ricinoleate, butyl oleate, butyl stearate, etc.; low molecular weight alkylene oxide-mono hydroxyl alcohol copolymers, olefin polymers, etc. Generally, oils of 50 to 300 SUS at 100 F. are suitable for use as light oils.
The gelling agents used to form the grease may be soaps of fatty acids and/or their glycerides. The saponiable material may be fatty acids having from 12 to 32 carbon atoms and they may be saturated, unsaturated or polarsubstituted fatty acids,` such as capric, lauric, myristic, palmitic, stearic, arachidic, behenic, lignoceric, myristoleic, palmitoleic, oleic, linoleic, cottonseed oil fatty acid, palm oil fatty acids, hydrogenated fish oil fatty acids, ricinoleic, erucic acids and their mixtures and/or their glycerides, such as lard, beef, rapeseed, palm, menhaden, herring oils, etc. Other acids may be included among which are: acids produced by oxidation of petroleum oil .and waxes, rosin acids, tall oil acids, abietic acids; naphthenic acids, petroleum sulfonic acids and the like.
A particularly preferred class of saponifiable materials are the hydroxy fatty .acids and their f glycerides, such as dimethyl hydroxy caprylic acid, dimethyl hydroxy capric, hydroxy physetoleic acid, ricinoleic acid, ricinelaidic acid, 12- hydroxy stearic acid, 9,10-dihydroxy stearic acid, i-hydroxy palmitic acid, linusic acid, sativic acid, lanoceric acid, dihydroxy gadoleic, `hydroxy behenic acid, quince-oil acid and the like. The preferred hydroxy fatty acids are those in which the hydroxy group is at least 12 carbon atoms removed from the carboxyl group. Also, it is preferable to use hydroxy fatty acids having at least l0 carbon atoms and up to about 32 carbon atoms and preferably those having between 14 and 32 carbon atoms in the molecule. Instead of using the free fatty yacids containing a hydroxy radical their glycerides can be used such as castor oil or hydrogenated castor oil or mixtures of free hydroxy fatty acids and their glycerides can be used. Mixtures of hydroxy and non-hydroxy fatty acids can be used to form soaps.
The sapcnifying agent used to make the soap may be any oxide or hydroxide of one or several of metals selected from Groups I, II, III, IV, VI, VII and VIII. Specifically the cation of the soaps may be represented by Na, K, Li, Cs, Ca,
Sr, Ba, Cd, Zn, Al, Pb and Co. Mixtures of soaps can be used and the soaps can be made in situ or premade soaps can be used to form the grease. Specific examples of preferred soaps and mixtures thereof are: lithium stearate, lithium hydroxystearate, lithium ricinoleate, lithium soap of hydrogenated sh-oil fatty acids, lithium soap of mixed stearic and hydroxystearic acid, sodium stearate, sodium hydroxystearate, sodium oleate, potassium oleate, potassium rosinate, calcium stearate, caicium hydroxystearate, aluminum stearate, aluminum soap of sh-oil fatty acids, barium hydroxystearate, barium stearate, `lithium soap of mixed stearic and hydroxystearic acids, lithium soap of mixed oleic and hydroxystearic acid, sodium soap of stearic and hydroxystearic acid; aluminum soap of lstearic and oleic acid, aluminum ricinoleate; mixed soaps of lithium stearate and sodium stearate; mixed soaps of lithium hydroxystearate land sodium stearate; mixed soaps of lithium hydroxystearate and calcium stearate, etc. Amine soaps such as triethanolamine oleate can be used in combination with metal soaps or as the gelling agent.
Instead of using only soaps as the gelling agent, mixtures of soaps and other gelling agents, such as organic or inorganic aerogels, e. g. silica aerogels and alumina aerogels can be used.
The soap content of grease compositions of this invention may Vary over wide limits and may be as high as 50%. In practice, it is possible by choice of suitable grease-forming lubricant bases to manufacture satisfactory lubricating greases containing only about 10% or less by weight of the soap mixtures. Very satisfactory products are obtained with a total lsoap content of about 3% by weight on the finished grease.
In order more clearly to set forth the invention, reference is now made to the accompanying drawing, which is a flow diagram illustrating a method of producing grease compositions of this invention. It is understood that modifications as to equipment, its arrangement, type and kind cf materials and their proportions can be resorted to without departing from the spirit of the invention as presented in the subjoined claims.
Referring to the flow diagram, the invention can be carried out as follows: Into a slurry tank l a pre-made soap or soap mixtures or materials used for making desired soaps and the highly viscous oil are added through lines '2 and 3, respectively. If other additives such as oxidation and corrosion inhibitors, anti-bleeding agent,
oiliness agents and the like are added to the grease they can be introduced into the slurry tank l through conduit 2 at a convenient time. The oil and soap or soap-forming materials are heated to around 120 C. for a time sufficient t0 drive out most of the moisture which might be present and is then led through conduit 4, through pump B and into heating equipment 9 where the grease is heated to a temperature of from 200 to 250 C. and worked until a homogeneous mixture has been attained. This hot grease concentrate which may contain from l10% to 50% soap may be conducted into a grease storage tank 26 through lines 'I and 28 and at a convenient time conducted through pump 20, and lines 2l and I2 into the final grease-forming kettle I3 where it may be admixed at room temperature or preferably heated to about C. with a light oil (50-300 SUS at 100?) which is introduced into a kettle I3 through line I4. The
I amount of light oil used depends upon the concentration of soap desired in the unal grease. Generally an :amount of light oil is used so that the iinal soap content should vary from 6% to 15% by weight. If desired the hot grease concentrate may be lead directly into kettle I3 through lines 'I, 28, and I5, admixed with light oil from line I4 and Worked into the final grease composition.
A` preferred embodiment of this invention is to heat-treat the grease lconcentrate prior to Working it into the final grease in kettle or votator I3. This is accomplished by regulating the iiow of the grease concentrate from heating tank 9 so that by the time it reaches the time or heat-treatment tank I0 the temperature of the grease has dropped below 200 C. but is above 100 C. The grease concentrate is allowed to remain in tank I0 in a quiescent state within the above temperature range for a time suiiicient to form the desired ber length and structure. The heat-treated grease concentrate may then be sent to storage tank 26 or sent to the final greaseforming kettle I3 through pump II and line I2 and Worked into the desired grease as described above.
The nal grease composition may be sent to storage tank I9 through lines I6 and IB or it may be-sent directly to homogenizer '23 at a temperature ranging from room temperature to about 65 C. and then discharged through line 24 into packing container 25. If desired, a portion of the nished grease from kettle I3 can be returned to slurry tank I through lines I6 and 29.
To illustrate the process of making greases by this invention, a specific example, namely, the method of making soda base grease will be herein fully described following the flow diagram.
Examplel Composition of the grease was as follows:
Components Grease Balance The acids and glycerides together with the 2000 SUS at 100 F. mineral cil and the caustic solution yare introduced into slurry tank I and heated at about 80 C. until the fatty materials have melted. The mixture is stirred vigorously to form a slurry and the temperature increased to above 100 C. to drive oil the water. During the heating and stirring .a modicum of dimethyl silicone can. be added if excess foaming occurs and the polyethylene oxide is added through line 2 or 30. The slurry is then lead through conduit 4 and pump S into heating tank 9 where the grease concentrate is heated to above 190 C. and preferably at from 204 C. and 225 C. until a homogeneous gel has been attained. The grease concentrate is cooled and introduced into the heat-treatment tank III where it is kept at about 160 C. for about 4 hours in a quiescent state. The grease is then conducted through line 2| into storage tank 26 where the grease is allowed to cool to about 90 or 100 C. then it is conducted into grease tank I3 through lines 21 and I2. At a temperature of about 80-l00 C. the remaining light mineral oil 100 SUS at 100 F. viscosity) is introduced into kettle I3 through line I4 and the entire mass worked until a homogeneous grease has been attained. If desired the grease -concentrate can be admixed with the light oil at room temperature. The grease is then lead to homogenizer 23 for working into a homogeneous consistency and texture, after which it is packed in containers 25. Greases compounded by the above method have excellent mechanical stability and are particularly suitable for low-temperature operations.
Example 2' Following the above procedure an excellent grease was prepared in which dioctyl phthalate was used instead of the light mineral oil.
Example 2A A lithium soap and a mineral oil having a viscosity (Saybolt) of 1000 at 100 F. were introduced into slurry tank I and the mixture heated until a homogeneous mass was formed. The slurry was then led through conduit 4 and pump 6 into heating tank 9 where the grease concentrate was heated to around 1GO-170 C. (1-8 hours) until la homogeneous gel was formed. The grease concentrate was then conducted through lines I and 28 into storage tank 20 where the concentrate was cooled to around C. and thereafter conducted into tank I 3 through line 2?. At a temperature of about 80-100 C., the remaining light mineral oil (100 SUS at 100 F.) was introduced into kettle I3 through line i4 until the soap content varied from 4 to 15% of the total composition and the entire mass was Worked until a homogeneous grease had been attained. The grease was then led to homogenizer 23 for working into a homogeneous consistency and texture, and then packed in containers 25.
Example 3` A soda base grease composed of the ingredients of Example 1 was prepared by a diierent method from that described in Example 1 and the result was a much poorer grease. This grease Was prepared by admixing the soap ingredients, stabilizer and all of the mineral oil (which had a blended viscosity of VSUS at 100 F.) in slurrying tank I. The slurry was then lead to heating tank 9, heat-treatment tank I0 land then into homogenizer 23 for working and then packaged.
The three greases were subjected to the Shell roll stability test in order to determine their mechanical stabilities. The roll stability tester is a simulated roller bearing and consi-sts of a 90 mm. I. D. x 180 mm. long cylinder inside of which is a 5 kg. weighted roller, G10 mm. diam. x 176 mm. long. The grease to be tested is placed in the free space and the outer cylinder is rotated on its axis at R. P. M. The grease is worked by rolling action of the inner cylinder. The stability of a grease is expressed as hours of rolling before its breakdown, and the samples prepared in the three examples behaved as follows:
To improve grease compositions made by the present method minor amounts of stabilizing agents can be added to the grease.
assassin Particularly desirable stabilizing agents which can; bea used with grease compositions of this invention are the alkylene. glycol and/or alkylene thiogl-'yocl polymers aswell as theirmono-esters and ether polymeric derivatives. The alkylene glycol polymeric materials 'can be represented by the. following. general structural formula:
wherein m and n and a are integers. Preferably the polymeric. alkylene glycols as represented by the above general formula, should be such that the factor a times the number of carbon atoms Witlsdn the brackets should be at least 6 and more.
The polymeric alkylene glycols can be made by polymerizing'in the presence of a ycatalyst, such as iodine, hydriodic acid and the like, ethylene, propylene, isobutylene, n-butylene oxides and/or their mixtures. Such polymers can also be produced by reacting a monohydric alcohol with an alkylene oxide. Thus a suitable product can be made by reacting n-butanol with propylene oxide at between about 212 to 230 F. under pressure and in. the presence of an alkali catalyst.
The polymerized higher polyalkylene glycols having betWeenVZ and 6 carbon atoms in the al-V kylene group are most effective as additives of this invention and those containing the ethylene andpropylene groups are preferred. The average molecular'weight of the polyalkylene glycols may be from about 200 to about '7000 and the preferred molecular weight being from about 1000 to. 6000.
It is desired to point out that the higher polyalkylene glycols are composed of mixtures of severalf polymers, for example, a polyethylene glycol having an average molecular weight of 400 consists of various glycols varying from a minor amount of monethylene glycol and increasing up to the pentadecaethylene glycol. Therefore, it is the average molecular weight which is specied and wherein the present specification, polyalkylene glycols or polyethylene glycols are referred to, they denne the higher glycols having an average molecular weight in excess of 200 and preferably in. excess of 400, those with an average molecular'weightl of between about 1'000 to 1500 being very eective in carrying out the present invention, Y
In lieu of the polyalkylene glycols, the ester and ether derivatives can be used. The esters can be made from a variety of acids having between 1 to about 22 carbon atoms and preferably between about 10 to 18 carbon atoms. Acids which may be used are the aliphatic, aromatic, cyclic, sulfonic acids and the like. Fatty acids and especially the higher fatty acids are preferred and include such acids as lauric, myristic, palmitic, stearic, arachidic, behenic, oleic, ricinoleic, hydroxystearic, phenylacetic, phenyl stearic acids and the like. However, such acids as naphthenic acid, oil-soluble petroleum sulfonic acids, tall oil fatty acids, aromatic acids, e. g. salicylic and phthalic acids and the like may be used to form the esters. Specific examples of esters of this type are the polyethylene glycol monostearate, polyethylene glycol monooleate and the like.
Ether derivatives of polyalkylene glycols may be made by any conventional method and the aromatic ethers of polyalkylene glycols having the general formula thiourea derivatives, e.
whereinAr is an aromatic radicalV having atri tached thereto at least. one alkyl radical denoted. by R' having from 1 to about 8 carbon atoms. and wherein YV is a, fatty acid derivative, n, m. and a are integers as in I and q is a number se,- lected from the group consisting of zero or- 1.
Minor amounts of oxidation inhibitors can be added to grease compositions of this invention such as N-butyl paraphenylene diamine. ,Also effective as. oxidation inhibitors. are alpha or beta naphthylamine, phenyl-alpha or beta naphthyh amine, alpha-alpha, beta-beta, or alpha-.beta dinaphthylamine, diphenylamine, tetramethyl diamine diphenylmethane, p. e t r ole u m alkyl phenols, and 2,4-diterti'ary butyl 6-methyl phenol.
Corrosion inhibitors which are particularly apa plicable with compositions of this invention are N-primary amines containing at least 6 and more than le carbon atoms in the molecule such as. hexylamine, octylamine, decylamine, dodecyl! amine, octadecylamine, heterocyclic nitrogen containing organic compounds such as alkyl sub-e stituted oxazolines and oxazoline salts of' fatty acids and nitrophenol.
Extreme pressure agents can be added to such grease and the preferred agents comprise esters of phosphorus acids such as triaryl, alkylhydroxy, aryl, or aralkyl phosphates, thiophosphates or phosphites, etc., neutral aromatic sulfur compounds such as diaryl suldes and polysulfides, e. g. diphenyl sulfide, dicresol sulfide, dibenzyl sulfide, methyl butyl diphenol sulfide, etc., dphenyl selenide and diselenide, dicresol selenide, and polyselende, etc., sulfurized fatty oils or esters of fatty acids and monohydric alcohols, e. sperm oil, jojoba oil, etc., in which the sulfur tightly bound; sulfurized long-chain clans obtained by dehydrogenation or cracking of wax; sulfurized phosphorized fatty oils, acids, esters and ketones, phosphorus acid esters having sulfurized organic radicals, such as esters of phosphoric or phosphorus acids with hydroxy fatty acids, chlorinated hydrocarbons such as chlorinated paraflins, aromatic hydrocarbons, terpenes, mineral lubricating oils, etc.; or chlori nated esters of fatty acids containing the chlorine in positions other than the alpha position.
Additional ingredients which can be added are anti-Wear agents such as oil-solubleurea or g. urethanes, allophanates, carbazides, carbazones, etc.; or rubber, polyisobutylene, polyvinyl esters, etc.; VI improvers such as polyisobutylene having a molecular Weight above about 800, voltolized paraffin Wax, unsaturated polymerized esters of fatty acids and monohydric alcohols, etc.; oiliness agents such as stearic and oleic acids and pour point depressors such as chlorinated naphthalene to further lower the pour point of the lubricant.
The amount of the above additives can be added to grease compositions of this invention in around about 0.01% to less than 10% by Weight and preferably 0.1% to 5.0% by Weight.
Greases of this invention are applicable for general automotive uses, and are excellent aircraft greases, industrial greas'es and the like.
We claim as our invention:
1. The method of making a wide temperature grease composition comprising admixing an oil having a viscosity above 500 at F. SUS with a grease-forming gelling agent in an amount so that the gelling agent comprises from 10% to about 50% of the mixture, heating until a homogeneous non-crystalline mass has formed, cooling said grease concentrate to a temperature position ranges from about below 100 C., and admixing into said grease concentrate at this temperature a light oil having a viscosity below 300 at 100 F. SUS until the content of the gelling agent based on the total comto about by weight.
2. The method of making a wide temperature `grease composition comprising admixing an oil having a viscosity above 500 at 100 F. SUS with a grease-forming gelling agent in an amount so that the gelling agent comprises from 10% to about of the mixture, heating said mixture to a temperature above 200 C. until a homogeneous non-crystalline mass has formed, cooling said grease concentrate to a temperature below 100 C. and admixing into said grease concentrate at this temperature a light oil having a viscosity below 300 at 100 F. SUS until the content of the gelling agent based on the total composition ranges from about 5% to about 15% by weight.
3. The method of making a wide temperature grease composition comprising admixing an oil having a viscosity above 500 at 100 F. SUS with a grease-forming soap in an amount so that the soap comprises from 10% to about 50% of the mixture, heating said inixure to a temperature above 200 C'.n until a homogeneous non-crystalline mass has formed, cooling said grease concentrate to a temperature below 100 C. and admixing into said grease concentrate at this ternperature a light oil having a viscosity below 300 at 100 F. SUS until the content of the soap based on the total composition ranges from about 5% to about 15% by weight.`
4. The method as defined by claim 2 in which a small amount of an oxidation inhibitor is incorporated into the grease concentrate.
5. The method as deiined by claim 2 in which the grease concentrate is heat-treated in a quiescent state prior to being cooled to below 100 F. for dilution with a light viscosity oil.
6. The method of making a wide temperature grease composition comprising admixing an oil having a viscosity above 500 at 100 F. SUS with a grease-forming gelling agent in an amount so that the gelling agent comprises from 10% to about 50% of the mixture, heating said mixture until a homogeneous non-crystalline mass has formed, reducing the temperature to a point i where recrystallization occurs but not below 110 C. and maintaining the grease concentrate in this temperature range for from about 1 to 8 hours, cooling thereafter said grease concentrate to below 100 C. and diluting said grease with a r light oil having a Viscosity at 100 F. of from 75 to 300 SUS at 100 F. until the soap content of the grease varies from 4 to about 15% by weight.
7. The method of making a soda soap grease which comprises forming a grease concentrate containing 10% to 50% of soda soap in a highly viscous oil having a viscosity at 100 F. of 500 to 1000 SUS, maintaining said grease concentrate at a temperature of from about 160 to about 170 C. for from about 1 to 8 hours, cooling thereafter said grease concentrate to below 100 C. and diluting said grease with a light oil having a viscosity at 100 F. of from 75 to 300 SUS until the soap content of the grease varies from about 4% to about 15% by weight.
8. The method of making a wide temperature grease composition comprising admixing an oil having a viscosity above 500 at 100 F. SUS with 10% to 50% soda soap and from 0.01% to about 1% polyalkylene glycol and heating said mixture to a temperature above 200 C. until a hornogeneous m-ass has formed, reducing the temperature to about 160 and 170 C. and maintaining said grease in this temperature range from about 1 to 8 hours, cooling thereafter said grease concentrate to below C. and diluting said grease with a light oil having a viscosity at .100 F. of from 75 to 300 SUS at 100 F. until the soap content of the grease varies from 4% to about 15% by weight. V
9. rEhe method of making a lithium soap grease which comprises forming a grease concentrate containing 10% to 50% of lithium soap in a highly viscous oil having a Viscosity at 100 F. of 500 to 1000 SUS, maintaining said grease concentrate at a temperature from 160 to about 170 C. for from 1 to 8 hours, cooling thereafter said grease concentrate to below 100 C. and diluting said grease with a light oil having a viscosity at 100 F. of from 75 to 300 SUS until the soap content of the grease varies from about 4% to about 15% by weight. i
10. The method of making a soda soap grease which comprises forming a grease concentrate containing 10% to 50% of soda soap in a highly viscous oil having a viscosity at 100 F. of 500 to 1000 SUS, maintaining said grease concentrate at a temperature of from 160 to about 170 C. for from 1 to 8 hours, cooling thereafter said grease concentrate to below 100 C. and diluting said grease with dioctyl phthalate until the soap content of the grease varies from about 4% to about 15% by weight.
11. The method of making a lithium soap grease which comprises forming a grease concentrate containing 10% to 50% of lithium soap in a highly viscous oil having a viscosity at 100 F. of 500 to 1000 SUS, maintaining said grease concentrate at a temperature of from about to C. for from 1 to 8 hours, cooling thereafter said grease concentrate to below 100 C. and diluting said grease with dioctyl phthalate until the soap content of the grease varies from about 4% to about 15% by weight.
12. The method of making a soda soap grease which comprises forming a grease concentrate containing 10% to 50% of soda soap and from 0.01% to about 1% polyalkylene glycol in a highly viscous oil having a viscosity at 100 F. of 500 to 1000 SUS, maintaining said grease concentrate at a temperature of from 160 to about 170 C. for from 1 to 8 hours, cooling thereafter said grease concentrate to below 100 C. and diluting said grease with a, light oil having a viscosity at 100 F. of from 75 to 300 SUS until the soap content of the grease varies from about 4% to about 15% by weight.
13. The method of making a lithium soap grease which comprises forming a grease concentrate containing 10% to 50% of lithium soap and from 0.01% to 1% polyalkylene glycol in a highly viscous oil having a Viscosity at 100 F. of 500 to 1000 SUS, maintaining said grease concentrate at a temperature of from about 160 to C. for from 1 to 8 hours, cooling thereafter said grease concentrate to below 100 C. and diluting said grease with a light oil having a viscosity at 100 F. of from 75 to 300 SUS until the soap content of the grease varies from about 4% to about 15% by weight.
14. The method of making a soda soap grease of hydroxy fatty acids of high molecular weight which comprises forming a grease concentrate containing around 50% soap and from 0.01 to about 1% polyalkylene glycol in a highly viscous tent of the grease is around 8% by weight.
15. The method of making a soda soap grease which comprises forming a grease concentrate containing 10% to 50% of soda soap in a highly 'viscous oil having a viscosity at 100 F. of 500 to 2000 SUS, maintaining said grease concentrate fat a temperature of from about 160 to about 170 C. for from about 1 to 8 hours, thereafter Icc'ioling said grease concentrate to below 100 C. and diluting said grease with a light oil having a viscosity at 100 F, of from 75 to 300 SUS until the "soap content of the ygrease is from about 4% to about 15% by weight.
1:6. The method of makin'gan Ialkali metal soap grease which comprises forming -a grease concentrate containing V10% `to 50% of 'alkali metal *soap in a highly viscous oil having a viscosity 'at 100 F. of 500 to 2000 SUS, maintaining said grease concentrate at aV temperature of from about 160 to about 170 C. lfor vfrom about 1 to 8 hours, thereafter cooling said grease concen- 1:2 tirate tb below 100 C. and diluting said grease with va light oil having a viscosity atf100 *of from '15 1-,0-300 sus until the soap content of the grease is from about 4% to about 15% by Weight.
'17. The method 'f making soda rsoap grease by method of claim 14 in which the 'soda soap lis vr'nade from a mixture of hydrogenated -'shoil 'aids and hydrogenated castor oil, said hydro- Vgenated fish oil acids being present in a Vpre;- dominant amount.
18. The method of `making soda soap grease by the method of claim 15 Which the sode. soap is made 4from a mixture of hydrogenat'ed fish oil acids and hydrogenated castor oil, Ysaid hy'dro'genated sh oil acids being present in a predominant amount land in which the light oil having a viscosity at 100 F. of from 75 to 300 SUS is dioctyl phthalate.
ROBERT J. MOORE. lJOI-IN NORTON WILSON.
References Cited in the le of this patent UNTED 'STATES PATENTS Number Name Date 2,318,668 CalknS May 11, 1943 2,343,736 Beerbower et al. Mar. '7, 1944 2,475,589 Bondi July 12, 1949
Claims (1)
1. THE METHOD OF MAKING A WIDE TEMPERATURE GREASE COMPOSITION COMPRISING ADMIXING AN OIL HAVING A VISCOSITY ABOUT 500 AT 100* F. SUS WITH A GREASE-FORMING GELLING AGENT IN AN AMOUNT SO THAT THE GELLING AGENT COMPRISES FROM 10% TO ABOUT 50% OF THE MIXTURE, HEATING UNTIL A HOMOGENEOUS NON-CRYSTALLINE MASS HAS FORMED, COOLING SAID GREASE CONCENTRATE TO A TEMPERATURE BELOW 100* C., AND ADMIXTURE INTO SAID GREASE CONCENTRATE AT THIS TEMPERATURE A LIGHT OIL HAVING A VISCOSITY BELOW 300 AT 100* F. SUS UNTIL THE CONTENT OF THE GELLING AGENT BASED ON THE TOTAL COMPOSITION RANGES FROM ABOUT 5% TO ABOUT 15% BY WEIGHT.
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US101028A US2652365A (en) | 1949-06-24 | 1949-06-24 | Manufacture of grease compositions |
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US101028A US2652365A (en) | 1949-06-24 | 1949-06-24 | Manufacture of grease compositions |
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US2652365A true US2652365A (en) | 1953-09-15 |
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US101028A Expired - Lifetime US2652365A (en) | 1949-06-24 | 1949-06-24 | Manufacture of grease compositions |
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Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2813828A (en) * | 1955-04-25 | 1957-11-19 | Shell Dev | Stabilized grease composition containing a thiodiarylamine and a dialkyl telluride or selanide |
US2828260A (en) * | 1958-03-25 | Table iv | ||
US2828261A (en) * | 1954-02-08 | 1958-03-25 | Standard Oil Co | Inorganic gel-thickened lubricant having good temperature susceptibility and dynamicwater stability characteristics |
US2862884A (en) * | 1954-03-23 | 1958-12-02 | Texas Co | Process for anhydrous calcium 12-hydroxy stearate and estolide containing grease |
US2872416A (en) * | 1953-09-30 | 1959-02-03 | Exxon Research Engineering Co | Anti-friction bearing grease and preparation thereof |
US2876198A (en) * | 1955-03-15 | 1959-03-03 | Texas Co | Method of grease manufacture with combined oil quench and recycle cooling |
US2891010A (en) * | 1955-12-07 | 1959-06-16 | Pure Oil Co | Waterproof silica-base greases |
US2898298A (en) * | 1954-03-16 | 1959-08-04 | Sinclair Refining Co | Process for lithium base grease |
US2913409A (en) * | 1957-04-24 | 1959-11-17 | Pure Oil Co | Silica-thickened grease containing carbamate salt as dispersant |
US2975130A (en) * | 1957-03-11 | 1961-03-14 | Union Oil Co | Water-resistant non-soap greases containing alkyl aryl polyether alcohols and methods of preparing the same |
US2998386A (en) * | 1959-01-26 | 1961-08-29 | Sinclair Refining Co | Lubricant containing a fatty acid amide of phenothiazine |
US3074884A (en) * | 1958-06-24 | 1963-01-22 | Texaco Inc | Solids thickened greases containing petroleum oxidates |
US3095375A (en) * | 1958-06-24 | 1963-06-25 | Texaco Inc | Extreme pressure lubricants containing highly oxidized waxes |
US5116538A (en) * | 1989-12-04 | 1992-05-26 | Jerome Johnson | Battery terminal corrosion protection |
US20020160088A1 (en) * | 2001-03-14 | 2002-10-31 | Hiroshi Sakaguchi | Fibrous crystal aggregates, preparation method thereof and use thereof |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2318668A (en) * | 1940-06-24 | 1943-05-11 | Standard Oil Dev Co | Grease manufacture |
US2343736A (en) * | 1942-08-28 | 1944-03-07 | Standard Oil Dev Co | Lubricant, etc. |
US2475589A (en) * | 1947-04-18 | 1949-07-12 | Shell Dev | Lubricating grease composition |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2318668A (en) * | 1940-06-24 | 1943-05-11 | Standard Oil Dev Co | Grease manufacture |
US2343736A (en) * | 1942-08-28 | 1944-03-07 | Standard Oil Dev Co | Lubricant, etc. |
US2475589A (en) * | 1947-04-18 | 1949-07-12 | Shell Dev | Lubricating grease composition |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2828260A (en) * | 1958-03-25 | Table iv | ||
US2872416A (en) * | 1953-09-30 | 1959-02-03 | Exxon Research Engineering Co | Anti-friction bearing grease and preparation thereof |
US2828261A (en) * | 1954-02-08 | 1958-03-25 | Standard Oil Co | Inorganic gel-thickened lubricant having good temperature susceptibility and dynamicwater stability characteristics |
US2898298A (en) * | 1954-03-16 | 1959-08-04 | Sinclair Refining Co | Process for lithium base grease |
US2862884A (en) * | 1954-03-23 | 1958-12-02 | Texas Co | Process for anhydrous calcium 12-hydroxy stearate and estolide containing grease |
US2876198A (en) * | 1955-03-15 | 1959-03-03 | Texas Co | Method of grease manufacture with combined oil quench and recycle cooling |
US2813828A (en) * | 1955-04-25 | 1957-11-19 | Shell Dev | Stabilized grease composition containing a thiodiarylamine and a dialkyl telluride or selanide |
US2891010A (en) * | 1955-12-07 | 1959-06-16 | Pure Oil Co | Waterproof silica-base greases |
US2975130A (en) * | 1957-03-11 | 1961-03-14 | Union Oil Co | Water-resistant non-soap greases containing alkyl aryl polyether alcohols and methods of preparing the same |
US2913409A (en) * | 1957-04-24 | 1959-11-17 | Pure Oil Co | Silica-thickened grease containing carbamate salt as dispersant |
US3074884A (en) * | 1958-06-24 | 1963-01-22 | Texaco Inc | Solids thickened greases containing petroleum oxidates |
US3095375A (en) * | 1958-06-24 | 1963-06-25 | Texaco Inc | Extreme pressure lubricants containing highly oxidized waxes |
US2998386A (en) * | 1959-01-26 | 1961-08-29 | Sinclair Refining Co | Lubricant containing a fatty acid amide of phenothiazine |
US5116538A (en) * | 1989-12-04 | 1992-05-26 | Jerome Johnson | Battery terminal corrosion protection |
US20020160088A1 (en) * | 2001-03-14 | 2002-10-31 | Hiroshi Sakaguchi | Fibrous crystal aggregates, preparation method thereof and use thereof |
US6797846B2 (en) * | 2001-03-14 | 2004-09-28 | National Institute Of Advanced Industrial Science And Technology | Fibrous crystal aggregates, preparation method thereof and use thereof |
US20040265467A1 (en) * | 2001-03-14 | 2004-12-30 | National Institute Of Advanced Industrial Science And Technology | Fibrous crystal aggregates, preparation method thereof and use thereof |
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