US2982734A - Power transmission mineral oil base fluid - Google Patents
Power transmission mineral oil base fluid Download PDFInfo
- Publication number
- US2982734A US2982734A US665659A US66565957A US2982734A US 2982734 A US2982734 A US 2982734A US 665659 A US665659 A US 665659A US 66565957 A US66565957 A US 66565957A US 2982734 A US2982734 A US 2982734A
- Authority
- US
- United States
- Prior art keywords
- mineral oil
- phosphate
- power transmission
- oil
- acid
- 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
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- 239000002480 mineral oil Substances 0.000 title claims description 17
- 235000010446 mineral oil Nutrition 0.000 title claims description 15
- 239000012530 fluid Substances 0.000 title claims description 14
- 230000005540 biological transmission Effects 0.000 title claims description 8
- 229910019142 PO4 Inorganic materials 0.000 claims description 26
- 239000010452 phosphate Substances 0.000 claims description 23
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 23
- 235000021355 Stearic acid Nutrition 0.000 claims description 10
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 10
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 10
- 239000008117 stearic acid Substances 0.000 claims description 10
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical compound C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 claims description 2
- 235000021317 phosphate Nutrition 0.000 description 23
- 239000000203 mixture Substances 0.000 description 16
- 229940042472 mineral oil Drugs 0.000 description 13
- 239000003921 oil Substances 0.000 description 12
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 5
- FRXGWNKDEMTFPL-UHFFFAOYSA-N dioctadecyl hydrogen phosphate Chemical compound CCCCCCCCCCCCCCCCCCOP(O)(=O)OCCCCCCCCCCCCCCCCCC FRXGWNKDEMTFPL-UHFFFAOYSA-N 0.000 description 4
- XMHIUKTWLZUKEX-UHFFFAOYSA-N hexacosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O XMHIUKTWLZUKEX-UHFFFAOYSA-N 0.000 description 4
- -1 alkyl phenols Chemical class 0.000 description 3
- 239000002199 base oil Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 244000145845 chattering Species 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- JTXUVYOABGUBMX-UHFFFAOYSA-N didodecyl hydrogen phosphate Chemical compound CCCCCCCCCCCCOP(O)(=O)OCCCCCCCCCCCC JTXUVYOABGUBMX-UHFFFAOYSA-N 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000010688 mineral lubricating oil Substances 0.000 description 2
- YVPOTNAPPSUMJX-UHFFFAOYSA-N octadecanoic acid;phosphoric acid Chemical compound OP(O)(O)=O.CCCCCCCCCCCCCCCCCC(O)=O YVPOTNAPPSUMJX-UHFFFAOYSA-N 0.000 description 2
- UHGIMQLJWRAPLT-UHFFFAOYSA-N octadecyl dihydrogen phosphate Chemical compound CCCCCCCCCCCCCCCCCCOP(O)(O)=O UHGIMQLJWRAPLT-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229920005573 silicon-containing polymer Polymers 0.000 description 2
- OPLCSTZDXXUYDU-UHFFFAOYSA-N 2,4-dimethyl-6-tert-butylphenol Chemical compound CC1=CC(C)=C(O)C(C(C)(C)C)=C1 OPLCSTZDXXUYDU-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004129 EU approved improving agent Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RYYWUUFWQRZTIU-UHFFFAOYSA-N Thiophosphoric acid Chemical class OP(O)(S)=O RYYWUUFWQRZTIU-UHFFFAOYSA-N 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 125000002511 behenyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 150000004712 monophosphates Chemical class 0.000 description 1
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000002895 organic esters Chemical class 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000642 polymer Chemical class 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 235000003441 saturated fatty acids Nutrition 0.000 description 1
- 150000004671 saturated fatty acids Chemical class 0.000 description 1
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical group [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 235000015096 spirit Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- RYYWUUFWQRZTIU-UHFFFAOYSA-K thiophosphate Chemical compound [O-]P([O-])([O-])=S RYYWUUFWQRZTIU-UHFFFAOYSA-K 0.000 description 1
- FSLSJTZWDATVTK-UHFFFAOYSA-N tris(6-methylheptyl) phosphate Chemical compound CC(C)CCCCCOP(=O)(OCCCCCC(C)C)OCCCCCC(C)C FSLSJTZWDATVTK-UHFFFAOYSA-N 0.000 description 1
- 125000004417 unsaturated alkyl group Chemical group 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M1/00—Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants
- C10M1/08—Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants with additives
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
-
- 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
- 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
-
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
- C10M2215/065—Phenyl-Naphthyl amines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/042—Metal salts thereof
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/045—Metal containing thio derivatives
-
- 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
- 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
- C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
-
- 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
- C10N2010/04—Groups 2 or 12
-
- 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
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/08—Hydraulic fluids, e.g. brake-fluids
Definitions
- the prior .art discloses various functional or power transmission fluids of the mineral oil or synthetic oil type (organic esters and polyethers) containing as the improving agents various organic phosphates, fatty acids and their esters, halogenated compounds, polymers suchas polyacrylates and the like.
- Compositions of this type are objectionable because of their inability to eliminate chattering and noises caused by frictional vibrations like, particularly in equipment which issubjectedto high speeds and temperatures.
- phenolic, amine and/or metal thiophosphate antioxidants such as alkyl phenols, e.g., diand trialkyl phenols, for instance 2,4-,,2,3-, 3,4-, 2,;6- and '3,5-diamyl phenol, 2,4-dimethyl-6-tertbutyl phenol, 2,6-ditertbutyl- 4-methyl phenol; arylamines such as phenyl-a-naphthylamine or phenyl-fl-naphthyl-amine;metal thiophosphates such as calcium or zinc dimethyl cyclohexyldithiophosphate anti-foaming agent e.g., silicone polymers (DC 200 fluids ranging in viscosity in centistokes from 100to 1000 at 250 C.) or s
- the base oils are hydrocarbon oils of wide viscosity range.
- Such .oils have a viscosity in the range of 40 S'US at'100 F. to 150 SUS at 210 F. and
- mineral oils which include mineral spirits, mineral seal oil, mineral spray oil transformer oil and/or stick-slip phenomenon of clutch plates and the:
- the agents are respectively saturated fattyacids having from 18 to 30 carbon atoms and preferably saturated 3 fattyacids having fron 18 to 26 carbon.
- atoms such as stearic acid and cerotic acidand monoorfdi-aliphafic acid phosphates such as monoor (ii-saturated or: unsaturated alkyl acidphosphates e.g., mono-or di-alkyl .least'9carbonatoms and7preferably at leastfl8z' and up I ⁇ acid phosphate, or monoa r di-alken yl phosphates or lmixtures thereof, said alkyl or alke'nyl radicals-having at p J a v miMondhehnyl diacid to 3 6 oarbonatoms in theqaliphaticgroup- Examples of Stearic acid Mineraloil (A as well as lubricating oils ,havingSAE numbers of'
- SAE 10 MINERAL OIL I Another suitable .base oil is a higbly refined traitsformer oil (A). having'the following properties:
- composition A Still another suitable base oil is a refined oil (B) having the following properties invention?"
- p 1 r composition A The following compositions are illustrative off the Monostearyl diacid phosphate L.
- Weightpercent Balance Weight percent Composition C Weight percent 2 Monolauryl diacid phosphate Stearic acid 0.2
- Phenol-u-naphthylamine 0. 1 D-C 200 'Fluid (1000 cs. at 25 C.) 5 ppm.
- compositions A, B, C, D, E, F, G and H the ratings were between 8 and 10.
- Mineral oils (A) or (B) each containing 0.2% stearic acid or 0.2% cerotic acid gave ratings of 4 and 5 respectively.
- Additives of this invention are useful in various functional fluids which contain minor amounts of other agents such as viscosity index improvers, point depressants, corrosion inhibitors and the like.
- a power transmission fluid consisting essentially of a major amount of mineral oil containingfrom about 0.1% to about 1% stearic acid,-from about 0.01% toabout 1% ditertbutyl4-methylphenol, from about 0.01% to about 1% phenyl-alpha-naphthylamine and from about 0.1% to about 1% of diacid phosphate selectedfrom the group consisting of monooleyl diacid phosphate and monostearyl diacid phosphate.
- a power transmission fluid consisting essentially of. a major amount of mineral lubricating oil and containing 0.2% stearic acid, 0.3% mono-oleyl diacid phosphate, 0.2% 2,6-ditertbutyl-4-methyl phenol and 0.1% phenyla-naphthylamine.
- a power transmission fluid consisting essentially ofi a major amount of mineral lubricating oil and containing 0.2% stearic acid, 0.3% monostearyl diacid phosphate, 0.2% 2,6-ditertbuty1-4-methyl phenol and 0.1% phenyla-naphthylamine.
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Description
United States Patent O 2,982,734 POWER TRANSMISSION MINERAL OIL BASE FLUID Stanley krsprague, East Alton, and Theodore W. Havely, Alton, 11L, assignol's to Shell Oil Company, a corporation of Delaware No Drawing. Filed June 14, 1957, Ser. No. 665,659
3 Claims. (Cl. 252-'7-8) .mechanisms, particularlythe more complicated automotive transmissions, fluid-cooled brake mechanisms and the like, oil lubricated Wet clutches, planetary gears and hydraulic control mechanisms, depend .on adequate cooling and lubricating of the equipment. Rigorous requirements have been set up to qualify fluids for this service which includes wide temperature stability .at both high and low temperatures and a low pour point to insure proper purnpability and fluidity at low temperatures. The fluids must not have a detrimental effect on parts with which they come in contact, such as metal surfaces, e.g., copper, and solid non-metallic surfaces, such as organic resins and the like. They must possess excellent :antifrictional and, in some cases extreme pressure characteristics, to afford proper lubrication of gears, clutch plates and other parts of the mechanism in which they areused, such as automotive equipment. Also the fluids must not cause chattering, squawking, squealing or produce other noises caused by the frictionalyvibra tions and/or stick-slip phenomenon of clutch plates or other parts of -;such mechanisms.
The prior .art discloses various functional or power transmission fluids of the mineral oil or synthetic oil type (organic esters and polyethers) containing as the improving agents various organic phosphates, fatty acids and their esters, halogenated compounds, polymers suchas polyacrylates and the like. Compositions of this type are objectionable because of their inability to eliminate chattering and noises caused by frictional vibrations like, particularly in equipment which issubjectedto high speeds and temperatures.
, the above purpose in small amounts of from about 0.01
Patented May 2, 1961 phosphate, distearyl acid phosphate, dibehenyl acid phos phate, distearyl acid phosphate, dioleyl acid phosphate, lauryl diacid phosphate, stearyl diacid phosphate, behenyl diacid phosphate, oleyl diacid phosphate, and mixtures thereof such as mono and dilauryl acid phosphate, mono and distearyl acid phosphate, mono and distearyl acid phosphate and the like.
In addition to the above two essential additives and mixtures thereof it is preferred to use in such compositions small amounts of from about 0.01% to about 1%- of phenolic, amine and/or metal thiophosphate antioxidants such as alkyl phenols, e.g., diand trialkyl phenols, for instance 2,4-,,2,3-, 3,4-, 2,;6- and '3,5-diamyl phenol, 2,4-dimethyl-6-tertbutyl phenol, 2,6-ditertbutyl- 4-methyl phenol; arylamines such as phenyl-a-naphthylamine or phenyl-fl-naphthyl-amine;metal thiophosphates such as calcium or zinc dimethyl cyclohexyldithiophosphate anti-foaming agent e.g., silicone polymers (DC 200 fluids ranging in viscosity in centistokes from 100to 1000 at 250 C.) or s'il-icone-t-ype A fluid made by Dow- Corning Co.-and described in US. Patents 2,563,588 and 2,662,055 and mixtures thereof.
As stated above the base oils are hydrocarbon oils of wide viscosity range. Such .oils have a viscosity in the range of 40 S'US at'100 F. to 150 SUS at 210 F. and
are illustrated by mineral oils which include mineral spirits, mineral seal oil, mineral spray oil transformer oil and/or stick-slip phenomenon of clutch plates and the:
GR API 31.2 ColorASTM 1 Pour point a --30 Flash, F. r 270 Fire, F. l 29S Viscosity SUS at 100' F. I I '48 Viscosity index 33' to about 5%, preferably from about 0.1% to about 1%, i
by weight, in a hydrocarbon oil of wide viscosity range! The agents are respectively saturated fattyacids having from 18 to 30 carbon atoms and preferably saturated 3 fattyacids having fron 18 to 26 carbon. atoms, such as stearic acid and cerotic acidand monoorfdi-aliphafic acid phosphates such as monoor (ii-saturated or: unsaturated alkyl acidphosphates e.g., mono-or di-alkyl .least'9carbonatoms and7preferably at leastfl8z' and up I {acid phosphate, or monoa r di-alken yl phosphates or lmixtures thereof, said alkyl or alke'nyl radicals-having at p J a v miMondhehnyl diacid to 3 6 oarbonatoms in theqaliphaticgroup- Examples of Stearic acid Mineraloil (A as well as lubricating oils ,havingSAE numbers of'from SAE 10 to 'SAE 50. Illustrative oils of this type have the following properties;
SAE 10 MINERAL OIL I Another suitable .base oil is a higbly refined traitsformer oil (A). having'the following properties:
7 Still another suitable base oil is a refined oil (B) having the following properties invention?" p 1 r composition A The following compositions are illustrative off the Monostearyl diacid phosphate L.
Weightpercent Balance Weight percent Composition C Weight percent 2 Monolauryl diacid phosphate Stearic acid 0.2
Mineral oil (B) Balance Composition D Weight percent Monolanryl acid phosphate 0.1 Stearic acid 0.2
Mineral oil (SAE 10) Balance Composition E p Weight percent Mixture of mono and dilauryl acid phosphate .0.1 Stearic acid 0.2 Mineral oil (B) Balance Composition F 7 Weight percent Monostearyl diacid phosphate 0.1 Stearic acid 0.2 2,6-ditertbutyl-4-methyl phenol 0.2 Phenyl-u-naphthylamine 0.1 Mineral oil (B) Balance Composition G Weight percent Monobehenyl diacid phosphate 0.1 Cerotic acid 0.2 Mineral oil (SAE 10) Balance Composition H a Weight percent Mono-oleyl diacid phosphate Stearic acid 0.2
2,6-ditertbutyl-4-methyl phenol 0.2
Phenol-u-naphthylamine 0. 1 D-C 200 'Fluid (1000 cs. at 25 C.) 5 ppm.
Mineral oil (A) Balance *D-CQOO F1nid=dimethyl silicone polymer. i
l; The superioritybf compositions of this invention, to eliminate noise, frictional vibrations and stick-slip sliding inliquid cooled hydraulic brake systems in which the parts were'made of steel and resilient, or. semi-metallic, or full sintered metallic friction materials were evaluated in-actualautomobile tests wherein the noise created after accelerating and suddenly stopping the vehicle wasrated,
10 being excellent, no noise or stick-slip and 'zero (0) being poor, severe noise and stick-slip.
With compositions A, B, C, D, E, F, G and H the ratings were between 8 and 10. Mineral oils (A) or (B) each containing 0.2% stearic acid or 0.2% cerotic acid gave ratings of 4 and 5 respectively. Mineral oil (A) or (B) each containing 0.5% .of n-octyl acid phosphate, dioctyl acid phosphate and triisooctyl phosphate, g'ave ratings of 4,1 and 1 respectively, while mineral oil (A) containing 0.4% lauryl acid phosphate gave a rating of 3.
Additives of this invention are useful in various functional fluids which contain minor amounts of other agents such as viscosity index improvers, point depressants, corrosion inhibitors and the like.
We claim as our invention: I I
1. A power transmission fluid consisting essentially of a major amount of mineral oil containingfrom about 0.1% to about 1% stearic acid,-from about 0.01% toabout 1% ditertbutyl4-methylphenol, from about 0.01% to about 1% phenyl-alpha-naphthylamine and from about 0.1% to about 1% of diacid phosphate selectedfrom the group consisting of monooleyl diacid phosphate and monostearyl diacid phosphate.
2. A power transmission fluid consisting essentially of. a major amount of mineral lubricating oil and containing 0.2% stearic acid, 0.3% mono-oleyl diacid phosphate, 0.2% 2,6-ditertbutyl-4-methyl phenol and 0.1% phenyla-naphthylamine.
3. A power transmission fluid consisting essentially ofi a major amount of mineral lubricating oil and containing 0.2% stearic acid, 0.3% monostearyl diacid phosphate, 0.2% 2,6-ditertbuty1-4-methyl phenol and 0.1% phenyla-naphthylamine.
References Cited in the file of this patent UNITED STATES PATENTS 2,005,619- Graves June '18, 1935 2,080,299 Benning May 11,1937 2,203,'102 -';Powers June 4, 1940 2,447,483, v Baker Aug. 24,1948 2,686,760 Watson .4 Aug. 17,1954 2,687,377 'Stewart Aug. 24, 1954 2,694,045 Jones Novj9, 1954 2,779,739; Spivak Jan: 29', 957 2,830,956 'Wasson et'al. Apr, 15,1958 2,913,415
Claims (1)
1. A POWER TRANSMISSION FLUID CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF MINERAL OIL CONTAINING FROM ABOUT 0.1% TO ABOUT 1% STEARIC ACID, FROM ABOUT 0.01% TO ABOUT 1% DITERTBUTYL-4-METHYLPHENOL, FROM ABOUT 0.01% TO ABOUT 1% PHENYL-ALPHA-NAPHTHYLAMINE AND FROM ABOUT 0.1% TO ABOUT 1% OF DIACID PHOSPHATE SELECTED FROM THE GROUP CONSISTING OF MONOOLEYL DIACID PHOSPHATE AND MONOSTEARYL DIACID PHOSPHATE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US665659A US2982734A (en) | 1957-06-14 | 1957-06-14 | Power transmission mineral oil base fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US665659A US2982734A (en) | 1957-06-14 | 1957-06-14 | Power transmission mineral oil base fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2982734A true US2982734A (en) | 1961-05-02 |
Family
ID=24671024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US665659A Expired - Lifetime US2982734A (en) | 1957-06-14 | 1957-06-14 | Power transmission mineral oil base fluid |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2982734A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3791488A (en) * | 1972-08-02 | 1974-02-12 | Rowe D | Lubricant and cleaning composition for precision instruments |
| US3941708A (en) * | 1974-02-11 | 1976-03-02 | Stauffer Chemical Company | Hydraulic fluid antioxidant system |
| WO1988001272A2 (en) | 1986-08-14 | 1988-02-25 | The Lubrizol Corporation | Borated amine salts of monothiophosphoric acids |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2005619A (en) * | 1934-11-10 | 1935-06-18 | Du Pont | Esters of acids of phosphorus |
| US2080299A (en) * | 1935-04-12 | 1937-05-11 | Du Pont | Inhibiting corrosion of metals |
| US2203102A (en) * | 1938-01-18 | 1940-06-04 | Gulf Research Development Co | Lubricant |
| US2447483A (en) * | 1944-04-15 | 1948-08-24 | Us Navy | Additives for silicone oils |
| US2686760A (en) * | 1951-10-27 | 1954-08-17 | Shell Dev | Hydraulic fluids and lubricating compositions |
| US2687377A (en) * | 1951-12-11 | 1954-08-24 | California Research Corp | Lubricant |
| US2694045A (en) * | 1951-12-14 | 1954-11-09 | Standard Oil Dev Co | Stabilizer for petroleum products |
| US2779739A (en) * | 1957-01-29 | Turbine lubricating oil compositions | ||
| US2830956A (en) * | 1954-02-12 | 1958-04-15 | Exxon Research Engineering Co | Hydraulic power transmission fluids |
| US2913415A (en) * | 1956-01-30 | 1959-11-17 | Shell Dev | Method of inhibiting squawking in mineral oil transmission fluids |
-
1957
- 1957-06-14 US US665659A patent/US2982734A/en not_active Expired - Lifetime
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2779739A (en) * | 1957-01-29 | Turbine lubricating oil compositions | ||
| US2005619A (en) * | 1934-11-10 | 1935-06-18 | Du Pont | Esters of acids of phosphorus |
| US2080299A (en) * | 1935-04-12 | 1937-05-11 | Du Pont | Inhibiting corrosion of metals |
| US2203102A (en) * | 1938-01-18 | 1940-06-04 | Gulf Research Development Co | Lubricant |
| US2447483A (en) * | 1944-04-15 | 1948-08-24 | Us Navy | Additives for silicone oils |
| US2686760A (en) * | 1951-10-27 | 1954-08-17 | Shell Dev | Hydraulic fluids and lubricating compositions |
| US2687377A (en) * | 1951-12-11 | 1954-08-24 | California Research Corp | Lubricant |
| US2694045A (en) * | 1951-12-14 | 1954-11-09 | Standard Oil Dev Co | Stabilizer for petroleum products |
| US2830956A (en) * | 1954-02-12 | 1958-04-15 | Exxon Research Engineering Co | Hydraulic power transmission fluids |
| US2913415A (en) * | 1956-01-30 | 1959-11-17 | Shell Dev | Method of inhibiting squawking in mineral oil transmission fluids |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3791488A (en) * | 1972-08-02 | 1974-02-12 | Rowe D | Lubricant and cleaning composition for precision instruments |
| US3941708A (en) * | 1974-02-11 | 1976-03-02 | Stauffer Chemical Company | Hydraulic fluid antioxidant system |
| WO1988001272A2 (en) | 1986-08-14 | 1988-02-25 | The Lubrizol Corporation | Borated amine salts of monothiophosphoric acids |
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