US2563606A - Grease containing silica gel treated - Google Patents
Grease containing silica gel treated Download PDFInfo
- Publication number
- US2563606A US2563606A US2563606DA US2563606A US 2563606 A US2563606 A US 2563606A US 2563606D A US2563606D A US 2563606DA US 2563606 A US2563606 A US 2563606A
- Authority
- US
- United States
- Prior art keywords
- water
- grease
- liquid
- silica
- lubricating
- 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 54
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title description 72
- 239000000741 silica gel Substances 0.000 title description 8
- 229910002027 silica gel Inorganic materials 0.000 title description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 88
- PEDCQBHIVMGVHV-UHFFFAOYSA-N glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 70
- 239000000203 mixture Substances 0.000 claims description 56
- LYCAIKOWRPUZTN-UHFFFAOYSA-N glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 44
- 239000002904 solvent Substances 0.000 claims description 40
- 150000002430 hydrocarbons Chemical class 0.000 claims description 36
- 230000001050 lubricating Effects 0.000 claims description 34
- 239000000017 hydrogel Substances 0.000 claims description 30
- 238000009835 boiling Methods 0.000 claims description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- DNIAPMSPPWPWGF-UHFFFAOYSA-N propylene glycol Chemical class CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 4
- 239000007788 liquid Substances 0.000 description 56
- 235000011187 glycerol Nutrition 0.000 description 36
- 239000000377 silicon dioxide Substances 0.000 description 32
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 30
- 239000000463 material Substances 0.000 description 24
- 239000000499 gel Substances 0.000 description 22
- 239000000314 lubricant Substances 0.000 description 20
- 239000000126 substance Substances 0.000 description 20
- 239000000047 product Substances 0.000 description 18
- 239000003921 oil Substances 0.000 description 16
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 16
- 239000004215 Carbon black (E152) Substances 0.000 description 14
- 229940093476 ethylene glycol Drugs 0.000 description 14
- PNEYBMLMFCGWSK-UHFFFAOYSA-N AI2O3 Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 12
- VHOQXEIFYTTXJU-UHFFFAOYSA-N 2-methylbuta-1,3-diene;2-methylprop-1-ene Chemical compound CC(C)=C.CC(=C)C=C VHOQXEIFYTTXJU-UHFFFAOYSA-N 0.000 description 10
- NEHMKBQYUWJMIP-UHFFFAOYSA-N Chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 10
- 229940050176 Methyl Chloride Drugs 0.000 description 10
- 229920005549 butyl rubber Polymers 0.000 description 10
- 239000011344 liquid material Substances 0.000 description 10
- 238000005461 lubrication Methods 0.000 description 10
- 238000003801 milling Methods 0.000 description 10
- 239000000344 soap Substances 0.000 description 10
- 210000001503 Joints Anatomy 0.000 description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 8
- RRHGJUQNOFWUDK-UHFFFAOYSA-N isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 8
- 230000035515 penetration Effects 0.000 description 8
- 239000002244 precipitate Substances 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 239000003153 chemical reaction reagent Substances 0.000 description 6
- -1 cresyl orthosilicate Chemical compound 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 6
- LGPMBEHDKBYMNU-UHFFFAOYSA-N ethane;ethene Chemical compound CC.C=C LGPMBEHDKBYMNU-UHFFFAOYSA-N 0.000 description 6
- 238000007710 freezing Methods 0.000 description 6
- 150000002334 glycols Chemical class 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- LQNUZADURLCDLV-UHFFFAOYSA-N Nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 239000005337 ground glass Substances 0.000 description 4
- 239000008240 homogeneous mixture Substances 0.000 description 4
- VQTUBCCKSQIDNK-UHFFFAOYSA-N isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 229940093470 Ethylene Drugs 0.000 description 2
- 240000002027 Ficus elastica Species 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 241000038859 Horia Species 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N Sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Tris Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- 229960004418 Trolamine Drugs 0.000 description 2
- LWZFANDGMFTDAV-BURFUSLBSA-N [(2R)-2-[(2R,3R,4S)-3,4-dihydroxyoxolan-2-yl]-2-hydroxyethyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O LWZFANDGMFTDAV-BURFUSLBSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 230000000111 anti-oxidant Effects 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000002939 deleterious Effects 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000012213 gelatinous substance Substances 0.000 description 2
- 238000001879 gelation Methods 0.000 description 2
- 238000007429 general method Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 150000002828 nitro derivatives Chemical class 0.000 description 2
- KREXGRSOTUKPLX-UHFFFAOYSA-N octadecanoic acid;zinc Chemical compound [Zn].CCCCCCCCCCCCCCCCCC(O)=O.CCCCCCCCCCCCCCCCCC(O)=O KREXGRSOTUKPLX-UHFFFAOYSA-N 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 230000000379 polymerizing Effects 0.000 description 2
- 235000013772 propylene glycol Nutrition 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 125000005624 silicic acid group Chemical class 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 229940035044 sorbitan monolaurate Drugs 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 229940029612 triethanolamine Drugs 0.000 description 2
- BOSMZFBHAYFUBJ-UHFFFAOYSA-N tris(4-methylphenyl) phosphate Chemical compound C1=CC(C)=CC=C1OP(=O)(OC=1C=CC(C)=CC=1)OC1=CC=C(C)C=C1 BOSMZFBHAYFUBJ-UHFFFAOYSA-N 0.000 description 2
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M7/00—Solid or semi-solid compositions essentially based on lubricating components other than mineral lubricating oils or fatty oils and their use as lubricants; Use as lubricants of single solid or semi-solid substances
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M5/00—Solid or semi-solid compositions containing as the essential lubricating ingredient mineral lubricating oils or fatty oils and their use
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
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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
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/08—Inorganic acids or salts thereof
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/08—Inorganic acids or salts thereof
- C10M2201/081—Inorganic acids or salts thereof containing halogen
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- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/08—Inorganic acids or salts thereof
- C10M2201/082—Inorganic acids or salts thereof containing nitrogen
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- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/08—Inorganic acids or salts thereof
- C10M2201/084—Inorganic acids or salts thereof containing sulfur, selenium or tellurium
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- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/085—Phosphorus oxides, acids or salts
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- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
- C10M2201/105—Silica
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/129—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of thirty or more carbon atoms
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/287—Partial esters
- C10M2207/289—Partial esters containing free hydroxy groups
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- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
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- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/105—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/20—Containing nitrogen-to-oxygen bonds
- C10M2215/202—Containing nitrogen-to-oxygen bonds containing nitro groups
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- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
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- 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
- C10M2223/041—Triaryl phosphates
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- 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
- C10M2223/042—Metal salts thereof
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- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/02—Esters of silicic acids
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- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/02—Unspecified siloxanes; Silicones
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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
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
-
- 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
- C10N2010/00—Metal present as such or in compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/02—Bearings
-
- 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
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Semi-solids; greasy
Definitions
- This invention relates to solvent resistant greases and lubricating compositions and more particularly to normally solid or grease-like compositions which are suitable for lubricating bear-
- Prior to our present invention there has been considerable difl'iculty in providing proper lubrication for mechanical elements operating in the presence of certain chemicals.
- Ordinary lu bricating compositions of hydrocarbon oil base are highly satisfactory for lubricating many types of mechanisms but in the presence of liquid hydrocarbons and various other chemicals they are readily dissolved, washed out, or otherwise rendered inefficient or ineffective.
- the liquid chosen to replace the water preferablyhas a viscosity at least as high as water and preferably also a lower volatility.
- mineral base lubricating oil may be used as the liquid, replacement of the water requiring, however, that a mutual solvent be employed.
- the liquid selected, however, must not react materially with the gel and it must, of course, have lubricating properties.
- the inorganic hydrogel or other gelatinous precipitate such as silica, alumina, stannia, etc. is treated in an appropriate manner as set forth hereinafter to replace the water by the lubricating liquid and is then subjected to milling. Milling is conducted in a manner which will thoroughly crush the gel and subject it to high shearing forces.
- the consistency of the finished product is determined by the proportion of the liquid to solid matter which is present. This proportion will normally be chosenso as to provide from 5% to 20% by weight of the solid matter, calculated on a water-free basis, in the finished product.
- liquid matter and the inorganic hydrogel or gelatinous precipitate may be chosen so as to provide proper resistance to a particular solvent or reagent in the presence of which the lubricant must be used.
- a lubricating grease or greaselike material produced from a liquid so chosen we have found, will also be likewise resistant to attack by that particular solvent or reagent and the inorganic gel structure provides a suitable grease-like structure or body for th lubricant.
- silica or alumina For example, if a grease which is resistant to to the solvent action of a hydrocarbon or chlorinated hydrocarbon solvent is desired, we have found that a combination of gelatinous silica or alumina with glycerol or a glycol proves satisfactory. 'I'horia, ferria, and other inorganic gelatinous materials also may be used as the starting material. Silica and alumina are generally preferred because of their low cost, common availability, color, stability, and ease of converting to handling anhydrous HCl gas.
- the gelatinous substances contemplated by our the precipitate may be used.
- the liquid materials which are chosen to replace the normal water of gelation will in general includes such substances as glycerol, the glycols, especially ethylene or polyethylene glycol, and the corresponding propylene compounds, as well as higher glycols and other similar oxygenated or polar compounds such as esters of phosphoric acid or silicic acids, e. g. cresyl phosphate, cresyl orthosilicate, and the like.
- the esters of sugar alcohols such as sorbitan mono-laurate or polyethylene oxide derivatives thereof, and related derivatives may be used.
- Certain nitro compounds such as nitrobenzene may be employed and various amines and amine alcohols, e. g. triethanol amine may be used.
- various liquid materials may be chosen, such as sulfuric acid, phosphoric acid, silicone polymer oils, and the like. Sulfuric acid and phosphoric acid have been used in the past to lubricate glass joints, stop cocks, and the like, and greases may be prepared according to the present invention for related uses.
- hydrocarbon oils may be used to replace the water of the normal gel where the chemicals or other reagents present are not of a character to dissolve or react unfavorably with hydrocarbons.
- greases prepared according to our invention are quite distinct in their character from the normal, soap base grease lubricants which are so widely used for lubricating purposes. They are nevertheless analogous and similar in many respects in their texture and other physical characteristics and it is within the scope of our invention to include in 'the lubricating composition such usual additives as antioxidants, corrosion inhibitors, extreme pressure agents, and the like, so long as they are compatible and useful with the liquid material being used. It is also within the scope of ourinvention to include such materials as the metallic soaps which normally might not be solvent resistant. Soaps may be used to replace part of the gel. In general they may comprise not more than 5% by weight of'the total composition.
- a grease may be prepared using a combination of silica gel and zinc stearate as thickening tions formulated according to our invention may be prepared by several general methods.
- the replacement of water in the gel may be accomplished by soaking the gelatinous material in a suflicient quantity of the desired liquid which is to replace the water, provided such liquid is miscible with water.
- the water can first be replaced by a mutual solvent and the desired liquid then incorporated in the same general manner. After replacement of the water, and of the mutual solvent where such is employed, the product can be milled to develop grease structure. In general milling during manufacture is preferred but in some cases the use to which the grease is subjected will accomplish adequate milling.
- Another method for replacing the water in the gelatinous material is to mill the gelatinous material with the desired liquid in heated equipment operated at a temperature suflicient to evaporate the waterduring the milhng and con structed so as to permit the water to escape, for example, in the form of steam.
- a steam heated rubber mill or analogous equipment may be used for this purpose and in fact has been found to be well suited for such uses.
- liquid portion which is to replace the water is water soluble, it may be incorporated in the composition in still another manner. It may beadded to a hydrosol or colloidal solution of the gelatinous material to give a homogeneous mixture. Thereafter the water may be evaporated and the product milled as previously indicated.
- the replacing liquid will have a. higher boiling point than water and if it is to be used at very low temperatures it should obviously have a very low freezing point. Very low freezing points may also be obtained by using a mixture of suitable liquids.
- the invention may be further illustrated by several examples.
- Example I The lubricant of Example I was used to seal and lubricate ground glass joints and stopcocks in laboratory equipment employed in the distillation of various etroleum products. It was found that the lubricant was quite satisfactory,
- EXAMPLE m A sample of silica hydrogel of the type described above in connection with Example I was worked on a steam heated rubber mill with ethyl ene glycol. During working the temperature was raised to remove the water by evaporation. 'Iwo other silica-ethylene glycol samples weretprepared in the same manner except that heating was discontinued before the water was completely removed. This was done for the purpose of producing a low temperature grease for use in contact with liquefied methyl chloride and liquefied ethylene ethane mixture in a butyl rubber reactor. It was found that the water has the effect of lowering the useful temperature range of greases prepared in this manner. 1
- the three greases prepared by the method of Example III were found to be unaffected by boiling methyl chloride and bythe'boiling ethylene ethane. mixture. TableI below gives the approximate compositions, and penetrations of the three greases prepared by the method of Example III. The penetration numbers were determined with a conventional grease penetrometer, the depth of penetration being measured for a 300 gram weight acting for 5 seconds. For the determinations made at l1 F. each sample was immersed in boiling methyl chloride. For the tests made at -142 F. the sample was immersed in each instance in a boiling mixture of ethylene and ethane such as is used in the commercial production of butyl rubber. The greases were fairly hard in consistency at -142 F. but those containing water and glycol gave excellent performance in a butyl rubber reactor.
- liquid material which replace water in the gel will be chosen for its resistance to solvent action or to chemical reaction with the particular material which it must encounter in use.
- materials such materials as glycerin
- a lubricating grease composition capable of resisting the solvent action of low boiling hydrocarbons, consisting essentially of an inorganic hydrogel, the water of which has beensubstantially replaced by a polyhydric alcohol selected from the group consisting of glycerol and the monomeric and polymeric ethylene and propylene glycols.
- a lubricating grease composition suitable for the lubricating of mechanical equipment in the presence of low boiling hydrocarbons consisting essentially of silica hydrogel, the water of which has been substantially replaced by ethylene glycol.
- a low boiling hydrocarbon solvent resisting grease composition consisting essentially of silica hydrogel, the water of which is replaced by i a,scs,ooo
- a solvent resisting grease composition comprising 6.4 to 13.5% byvweight of silica and 51% and alcohol vigorously while maintaining a temperature oi at least, 180F. and sufllciently high to evaporate the water substantiallycompletely.
- a solvent resistant lubricating grease composition consisting essentially of a silica hydrogel, the water of which has-been substantially replaced by ethylene glycol, said composition consisting of 5 to 20% silica, 50 to 95% of said ethylene glycol and 0 to 40% water.
- the process or preparing a low temperature lubricating grease resistant to the solvent action 'of "low boiling hydr'o'carbons'T'ivhich' comprises glycerol and ethylene glycol and milling said gel,
- alcohol is ethylene glycol.
Description
Patented Aug. 7, 1951 UNITE GREASE CONTAINING SILICA GEL TREATED WITH A POLYHYDRIC ALCOHOL Charles N. Kimberlin, Jr., and Augustus B. Small, Baton Rouge, La., assignors to Standard Oil Development Company, a corporation of Delaware N Drawing. Application July 24, 1947, Serial No. 763,439
9 Claims. (01. 252-28) 1 This invention relates to solvent resistant greases and lubricating compositions and more particularly to normally solid or grease-like compositions which are suitable for lubricating bear- Prior to our present invention, there has been considerable difl'iculty in providing proper lubrication for mechanical elements operating in the presence of certain chemicals. Ordinary lu bricating compositions of hydrocarbon oil base are highly satisfactory for lubricating many types of mechanisms but in the presence of liquid hydrocarbons and various other chemicals they are readily dissolved, washed out, or otherwise rendered inefficient or ineffective. In' certain types of apparatus, such as mixing vats, and in chemical reaction vessels containing movable mechanical parts, such as stirrers, and the like, it has been very diflicult to provide suitable lubrication. This is particularly true in certain types of apparatus operating at unusual temperatures. For
example, mechanical processing equipment for polymerizing hydrocarbons, such as isobutylene, isoprene, etc., at very low temperatures has presented a particular problem. Apparatus of this character is frequently operated at temperatures far below freezing and as low as l50 F. or lower. The hydrocarbon reactants are commonly associated with other solvents, such as methyl chloride and the like which also tend to dissolve out and destroy ordinary lubricants. In the past, lithium soap base greases have been used to some extent in this type of apparatus but have not been very satisfactory becaus the hydrocarbon oil constituents are leached or dissolved out of the lubricant.
Various types of chemical laboratory equipment and chemical plant equipment involving ground glass joints, stopcocks, and the like, require lubrication and a lubricant must be provided which will not be attacked chemically and will not be dissolved and carried away by the chemicals which are being used or processed. In many instances ordinary lubricating oils and greases of mineral oil base are not satisfactory for these uses.
It is, therefore, an object of our invention to compound a suitable lubricant which will be useful with hydrocarbons and other chemicals without being dissolved thereby and without being subject to undesirable chemical reaction with accompanying formation of materials which are deleterious to the surfaces and materials in the system lubricated. It is a further object to com- 2 pound a grease type lubricant which will retain its lubricating qualities at extreme temperatures and particularly at extremely low temperatures. Other and further objects will become apparent as this description proceeds.
We have found that when the water of an inorganic hydrogel or of other inorganic gelatinous precipitates is replaced by a liquid having lubricating properties but suitably resistant to solution or chemical reaction and properly milled a composition product having an excellent greaselike structure may be produced. The liquid chosen to replace the water preferablyhas a viscosity at least as high as water and preferably also a lower volatility. For appropriate purposes mineral base lubricating oil may be used as the liquid, replacement of the water requiring, however, that a mutual solvent be employed. The liquid selected, however, must not react materially with the gel and it must, of course, have lubricating properties.
The inorganic hydrogel or other gelatinous precipitate such as silica, alumina, stannia, etc., is treated in an appropriate manner as set forth hereinafter to replace the water by the lubricating liquid and is then subjected to milling. Milling is conducted in a manner which will thoroughly crush the gel and subject it to high shearing forces. The consistency of the finished product is determined by the proportion of the liquid to solid matter which is present. This proportion will normally be chosenso as to provide from 5% to 20% by weight of the solid matter, calculated on a water-free basis, in the finished product.
We have further found that by proper selection the liquid matter and the inorganic hydrogel or gelatinous precipitate may be chosen so as to provide proper resistance to a particular solvent or reagent in the presence of which the lubricant must be used. A lubricating grease or greaselike material produced from a liquid so chosen, we have found, will also be likewise resistant to attack by that particular solvent or reagent and the inorganic gel structure provides a suitable grease-like structure or body for th lubricant.
For example, if a grease which is resistant to to the solvent action of a hydrocarbon or chlorinated hydrocarbon solvent is desired, we have found that a combination of gelatinous silica or alumina with glycerol or a glycol proves satisfactory. 'I'horia, ferria, and other inorganic gelatinous materials also may be used as the starting material. Silica and alumina are generally preferred because of their low cost, common availability, color, stability, and ease of converting to handling anhydrous HCl gas.
3 the gelatinous form. On the other hand, if resistance to the chemical action of sulfuric acid or of liquid chlorine or bromine is desired, a combination of gelatinous silica with sulfuric acid as the liquid media may be chosen. Sulfuric acid has previously been used in the ordinary liquid form in apparatus for compressing and otherwise The grease just described has analogous applications n com centrated sulfuric acid forms an eflective combination with silica hydrogel when the water of the gel is replaced thereby.
The gelatinous substances contemplated by our the precipitate may be used. The liquid materials which are chosen to replace the normal water of gelation will in general includes such substances as glycerol, the glycols, especially ethylene or polyethylene glycol, and the corresponding propylene compounds, as well as higher glycols and other similar oxygenated or polar compounds such as esters of phosphoric acid or silicic acids, e. g. cresyl phosphate, cresyl orthosilicate, and the like. The esters of sugar alcohols such as sorbitan mono-laurate or polyethylene oxide derivatives thereof, and related derivatives may be used. Certain nitro compounds such as nitrobenzene may be employed and various amines and amine alcohols, e. g. triethanol amine may be used.
For resistanceto chemical attack, as distinguished from resistance to solvent action, various liquid materials may be chosen, such as sulfuric acid, phosphoric acid, silicone polymer oils, and the like. Sulfuric acid and phosphoric acid have been used in the past to lubricate glass joints, stop cocks, and the like, and greases may be prepared according to the present invention for related uses. In appropriate cases, as suggested above, hydrocarbon oils may be used to replace the water of the normal gel where the chemicals or other reagents present are not of a character to dissolve or react unfavorably with hydrocarbons.
It will be understood that greases prepared according to our invention are quite distinct in their character from the normal, soap base grease lubricants which are so widely used for lubricating purposes. They are nevertheless analogous and similar in many respects in their texture and other physical characteristics and it is within the scope of our invention to include in 'the lubricating composition such usual additives as antioxidants, corrosion inhibitors, extreme pressure agents, and the like, so long as they are compatible and useful with the liquid material being used. It is also within the scope of ourinvention to include such materials as the metallic soaps which normally might not be solvent resistant. Soaps may be used to replace part of the gel. In general they may comprise not more than 5% by weight of'the total composition. Thus a grease may be prepared using a combination of silica gel and zinc stearate as thickening tions formulated according to our invention may be prepared by several general methods. Thus in many cases the replacement of water in the gel may be accomplished by soaking the gelatinous material in a suflicient quantity of the desired liquid which is to replace the water, provided such liquid is miscible with water. However, if the liquid is immiscible with water, the water can first be replaced by a mutual solvent and the desired liquid then incorporated in the same general manner. After replacement of the water, and of the mutual solvent where such is employed, the product can be milled to develop grease structure. In general milling during manufacture is preferred but in some cases the use to which the grease is subjected will accomplish adequate milling.
' Another method for replacing the water in the gelatinous material is to mill the gelatinous material with the desired liquid in heated equipment operated at a temperature suflicient to evaporate the waterduring the milhng and con structed so as to permit the water to escape, for example, in the form of steam. A steam heated rubber mill or analogous equipment may be used for this purpose and in fact has been found to be well suited for such uses.
If the liquid portion which is to replace the water is water soluble, it may be incorporated in the composition in still another manner. It may beadded to a hydrosol or colloidal solution of the gelatinous material to give a homogeneous mixture. Thereafter the water may be evaporated and the product milled as previously indicated.
Generally speaking, the replacing liquid will have a. higher boiling point than water and if it is to be used at very low temperatures it should obviously have a very low freezing point. Very low freezing points may also be obtained by using a mixture of suitable liquids. The invention may be further illustrated by several examples.
EXALIPLE I To a sulfuric acid solution having a specific gravity of 1.19 there was added an equal volume of sodium silicate (Nan-3.25 SiOz), in a solution having a specific gravity of 1.21. The resulting hydrogel which formed was washed with water until free of sulfate ions. The product remaining was a hydrogel consisting of silica and water. The hydrogel was then treated with successive portions of glycerin at a temperature of to 200 F. until the water was completely replaced. The temperature was raised above normal to hasten the diifusion of glycerin into and water out of the gel structure. The excess glycerin and water were then drained oil. The gel was next milled in 9. Simpson type mill for three hours with small additions of glycerine in order to obtain the desired grease-like consistency. The resulting product had an excellent grease struc ture and was entirely resistant to the action of hydrocarbons and similar solvents. Its composition was 6.4% silica and 93.6% glycerine. Due to its glycerine content it was somewhat hygroscopic in character but it was found that a moderate amount absorption of water did not seriously detract from its usefulness.
The lubricant of Example I was used to seal and lubricate ground glass joints and stopcocks in laboratory equipment employed in the distillation of various etroleum products. It was found that the lubricant was quite satisfactory,
leaks being successfully prevented, and no frozen joints were encountered. 1
The replacement of the water of.a hydrogel with another (water miscible) liquid can be illustrated as follows: If a sponge containing water is placed into a vessel containing alcohol the alco- EXAMPLE II to be 13.5% silica and 86.5% glycerin. Except for the difference in consistency it was useful for the same general type of purpose as in the case of Example I.
EXAMPLE m A sample of silica hydrogel of the type described above in connection with Example I was worked on a steam heated rubber mill with ethyl ene glycol. During working the temperature was raised to remove the water by evaporation. 'Iwo other silica-ethylene glycol samples weretprepared in the same manner except that heating was discontinued before the water was completely removed. This was done for the purpose of producing a low temperature grease for use in contact with liquefied methyl chloride and liquefied ethylene ethane mixture in a butyl rubber reactor. It was found that the water has the effect of lowering the useful temperature range of greases prepared in this manner. 1
The three greases prepared by the method of Example III were found to be unaffected by boiling methyl chloride and bythe'boiling ethylene ethane. mixture. TableI below gives the approximate compositions, and penetrations of the three greases prepared by the method of Example III. The penetration numbers were determined with a conventional grease penetrometer, the depth of penetration being measured for a 300 gram weight acting for 5 seconds. For the determinations made at l1 F. each sample was immersed in boiling methyl chloride. For the tests made at -142 F. the sample was immersed in each instance in a boiling mixture of ethylene and ethane such as is used in the commercial production of butyl rubber. The greases were fairly hard in consistency at -142 F. but those containing water and glycol gave excellent performance in a butyl rubber reactor.
Table I Composition, Wt. Per Cent Penetration, mm.
sioi 0211mm: H2O -11 F. 142F.
1o 90 o 125 22 9 57 34 so 9 s1 24 320 36 6 EXAMPLEIV Still another example ofgrease prepared according to our invention was made by taking a peptized alumina hydrosol of the Patrick type containing 5% alumina which was prepared by treating amalgamated aluminum with 0.5% acetic acid solution, as set forth in U. S. Patent No. 2,258,099. An amount of glycerin equal to onehalf the volume of the peptized hydrosol was added thereto. This resulted in a homogeneous mixture which was evaporated in an oven at a temperature of 260 F. to remove the water. The resulting product was a transparent rather hard greasy semi-solid. This material was worked on a rubber mill to give very stiff grease. It had the composition 11% A1203, 89% glycerin. It is noted that a given amount of alumina gives a stiffer grease than a like quantity of silica.
Further experiments with greases of the silica hydrogelethylene glycol type, prepared by the manner set forth in Example III above, reveal that such greases are particularly suitable for the lubrication of mechanical equipment operating at very low temperatures in the presence of liquid hydrocarbons. A grease of this type has been found to give very satisfactory lubrication in a butyl rubber plant and its use for such purposes is being increased. The fact that such a grease has been found satisfactory in such equipment indicates that it gives good performance in the presence of liquid methyl chloride, liquid isobutylene, liquid isoprene, and also liquid ethane-ethylene which is used as a refrigerant. The grease may be used in the presence of liquid hydrocarbons of higher boiling points and greater viscosity at temperatures ranging from as low as 150 F. to normal room temperatures. The silica gel glycol type grease has been found to flow better at the low temperatures of butyl rubber polymerization than the lithium soap base greases which were used in the past.
It will be understood that the liquid material which replace water in the gel will be chosen for its resistance to solvent action or to chemical reaction with the particular material which it must encounter in use. Thus, although we have specifically mentioned such materials as glycerin,
the various glycols, sulfuric acid, phosphoric acid,
silicone polymer oils and the like, as well as hydrocarbon oils, it will be apparent that other liquid materials chosen for their particular purposes may be used with success.
We claim:
1. A lubricating grease composition capable of resisting the solvent action of low boiling hydrocarbons, consisting essentially of an inorganic hydrogel, the water of which has beensubstantially replaced by a polyhydric alcohol selected from the group consisting of glycerol and the monomeric and polymeric ethylene and propylene glycols.
2. A lubricating grease composition resistant to the solvent action of low boiling hydrocarbons and consisting essentially of an inorganic hydrogel,
the water of which has been substantially replaced by glycerol.
3. A lubricating grease composition suitable for the lubricating of mechanical equipment in the presence of low boiling hydrocarbons, consisting essentially of silica hydrogel, the water of which has been substantially replaced by ethylene glycol.
4. A low boiling hydrocarbon solvent resisting grease composition consisting essentially of silica hydrogel, the water of which is replaced by i a,scs,ooo
glycerin, said composition being milled to a grease-like consistency. I
5. A solvent resisting grease composition comprising 6.4 to 13.5% byvweight of silica and 51% and alcohol vigorously while maintaining a temperature oi at least, 180F. and sufllciently high to evaporate the water substantiallycompletely.
a. Process according to claim 1 whereirisaid to 93.6% or liquid polyhydric alcohol selected 5' alcohol is glyceroL' 9. Process according to claim 7 wherein said from the group consisting of glycerol and ethylene glycol. Y
6. A solvent resistant lubricating grease composition consisting essentially of a silica hydrogel, the water of which has-been substantially replaced by ethylene glycol, said composition consisting of 5 to 20% silica, 50 to 95% of said ethylene glycol and 0 to 40% water.
'7. The process or preparing a low temperature lubricating grease resistant to the solvent action 'of "low boiling hydr'o'carbons'T'ivhich' comprises glycerol and ethylene glycol and milling said gel,
alcohol is ethylene glycol.
CHARLESN.
AUGUSTUS B. SMALL.
nmnncss cn'm The following references are of record in th illc oithis patentz' e UNITED era-ms Pam-rs Number 7 Name Date 3,233,635 Kistler Oct. 28. 1841' ,1 1 Ballard Jill. 13,
Bass Oct. 7, 1947
Claims (1)
1. A LUBRICATING GREASE COMPOSITION CAPABLE OF RESISTING THE SOLVENT ACTION OF LOW BOILING HYDROCARBONS, CONSISTING ESSENTIALLY OF AN INORGANIC HYDROGEL, THE WATER OF WHICH HAS BEEN SUBSTANTIALLY REPLACED BY A POLYHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF GLYCEROL AND THE MONOMERIC AND POLYMERIC ETHYLENE AND PROPYLENE GLYCOLS.
Publications (1)
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US2563606A true US2563606A (en) | 1951-08-07 |
Family
ID=3438322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US2563606D Expired - Lifetime US2563606A (en) | Grease containing silica gel treated |
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US (1) | US2563606A (en) |
Cited By (14)
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US2652361A (en) * | 1951-12-29 | 1953-09-15 | Shell Dev | Grease compositions |
US2739121A (en) * | 1951-12-14 | 1956-03-20 | Degussa | Thickened hydrophobic lubricating compositions |
US2766209A (en) * | 1954-05-21 | 1956-10-09 | Pure Oil Co | Clay thickened lubricants having water resistant characteristics |
US2810738A (en) * | 1953-04-02 | 1957-10-22 | Copeland & Slack Inc | Colloidal organo-silicon polymers |
US2820763A (en) * | 1951-11-02 | 1958-01-21 | Standard Oil Co | Thickened lubricants |
US2820765A (en) * | 1954-10-06 | 1958-01-21 | Standard Oil Co | Thickened lubricants |
US2820764A (en) * | 1951-11-02 | 1958-01-21 | Standard Oil Co | Thickened lubricants |
US2939840A (en) * | 1957-05-14 | 1960-06-07 | Pure Oil Co | Silica-thickened grease containing alkylene carbonate dispersant |
US3004921A (en) * | 1958-06-11 | 1961-10-17 | Argus Chem | Preparation of colloidal dispersions of fine-particle size silica hydrogel in polyols |
DE1143291B (en) * | 1957-10-28 | 1963-02-07 | Cabot Corp | Lubricating greases |
US3386916A (en) * | 1964-07-01 | 1968-06-04 | Shell Oil Co | Lubricating grease composition |
US3985675A (en) * | 1971-01-28 | 1976-10-12 | Monsanto Company | Process for gelling aqueous polyol suspensions and resulting gel |
US4246139A (en) * | 1975-09-15 | 1981-01-20 | Phillips Petroleum Company | Silica production |
EP0074791A2 (en) * | 1981-09-10 | 1983-03-23 | Stauffer Chemical Company | Lubricating and sealing grease composition |
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US2270101A (en) * | 1939-04-26 | 1942-01-13 | Herman E Ballard | Lubricant |
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US2260625A (en) * | 1937-07-03 | 1941-10-28 | Monsanto Chemicals | Gel and lubricant made therefrom |
US2270101A (en) * | 1939-04-26 | 1942-01-13 | Herman E Ballard | Lubricant |
US2428608A (en) * | 1942-11-02 | 1947-10-07 | Dow Chemical Co | Plastic dielectric composition and shielded spark plug terminal construction comprising same |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
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US2820763A (en) * | 1951-11-02 | 1958-01-21 | Standard Oil Co | Thickened lubricants |
US2820764A (en) * | 1951-11-02 | 1958-01-21 | Standard Oil Co | Thickened lubricants |
US2739121A (en) * | 1951-12-14 | 1956-03-20 | Degussa | Thickened hydrophobic lubricating compositions |
US2652361A (en) * | 1951-12-29 | 1953-09-15 | Shell Dev | Grease compositions |
US2810738A (en) * | 1953-04-02 | 1957-10-22 | Copeland & Slack Inc | Colloidal organo-silicon polymers |
US2766209A (en) * | 1954-05-21 | 1956-10-09 | Pure Oil Co | Clay thickened lubricants having water resistant characteristics |
US2820765A (en) * | 1954-10-06 | 1958-01-21 | Standard Oil Co | Thickened lubricants |
US2939840A (en) * | 1957-05-14 | 1960-06-07 | Pure Oil Co | Silica-thickened grease containing alkylene carbonate dispersant |
DE1143291B (en) * | 1957-10-28 | 1963-02-07 | Cabot Corp | Lubricating greases |
US3004921A (en) * | 1958-06-11 | 1961-10-17 | Argus Chem | Preparation of colloidal dispersions of fine-particle size silica hydrogel in polyols |
US3386916A (en) * | 1964-07-01 | 1968-06-04 | Shell Oil Co | Lubricating grease composition |
US3985675A (en) * | 1971-01-28 | 1976-10-12 | Monsanto Company | Process for gelling aqueous polyol suspensions and resulting gel |
US4246139A (en) * | 1975-09-15 | 1981-01-20 | Phillips Petroleum Company | Silica production |
EP0074791A2 (en) * | 1981-09-10 | 1983-03-23 | Stauffer Chemical Company | Lubricating and sealing grease composition |
US4378297A (en) * | 1981-09-10 | 1983-03-29 | Stauffer Chemical Company | Lubricating sealants |
EP0074791A3 (en) * | 1981-09-10 | 1983-09-07 | Stauffer Chemical Company | Lubricating and sealing grease composition |
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