US2183783A - Lubricating oil - Google Patents
Lubricating oil Download PDFInfo
- Publication number
- US2183783A US2183783A US156959A US15695937A US2183783A US 2183783 A US2183783 A US 2183783A US 156959 A US156959 A US 156959A US 15695937 A US15695937 A US 15695937A US 2183783 A US2183783 A US 2183783A
- Authority
- US
- United States
- Prior art keywords
- lubricating oil
- oil
- pour point
- viscosity
- highly
- 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
- 239000010687 lubricating oil Substances 0.000 title description 19
- 239000003921 oil Substances 0.000 description 19
- 239000000203 mixture Substances 0.000 description 10
- 239000007921 spray Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 239000000470 constituent Substances 0.000 description 5
- 239000010688 mineral lubricating oil Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000006277 sulfonation reaction Methods 0.000 description 2
- SXQXMKMHOFIAHT-UHFFFAOYSA-N 1,1-dichloro-2-(2,2-dichloroethoxy)ethane Chemical compound ClC(Cl)COCC(Cl)Cl SXQXMKMHOFIAHT-UHFFFAOYSA-N 0.000 description 1
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- 238000005727 Friedel-Crafts reaction Methods 0.000 description 1
- 239000004264 Petrolatum Substances 0.000 description 1
- 241001417524 Pomacanthidae Species 0.000 description 1
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- DFYMJRWCTWOLEH-UHFFFAOYSA-N benzene;sulfur dioxide Chemical compound O=S=O.C1=CC=CC=C1 DFYMJRWCTWOLEH-UHFFFAOYSA-N 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 125000006267 biphenyl group Chemical group 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 229930003836 cresol Natural products 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical class C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 ethyl dichlormargarate Chemical compound 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- IPCSVZSSVZVIGE-UHFFFAOYSA-M hexadecanoate Chemical compound CCCCCCCCCCCCCCCC([O-])=O IPCSVZSSVZVIGE-UHFFFAOYSA-M 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical group [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000010699 lard oil Substances 0.000 description 1
- HDINWBRYKNUCEC-UHFFFAOYSA-N methyl 2,2-dichlorooctadecanoate Chemical compound CCCCCCCCCCCCCCCCC(Cl)(Cl)C(=O)OC HDINWBRYKNUCEC-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000012170 montan wax Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229940066842 petrolatum Drugs 0.000 description 1
- 235000019271 petrolatum Nutrition 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000001993 wax Substances 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
- C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
- C10M101/02—Petroleum fractions
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/102—Aliphatic fractions
- C10M2203/1025—Aliphatic fractions used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/104—Aromatic fractions
- C10M2203/1045—Aromatic fractions used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/106—Naphthenic fractions
- C10M2203/1065—Naphthenic fractions used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/108—Residual fractions, e.g. bright stocks
- C10M2203/1085—Residual fractions, e.g. bright stocks used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/22—Alkylation reaction products with aromatic type compounds, e.g. Friedel-crafts
-
- 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
- C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2211/04—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen, halogen, and oxygen
- C10M2211/042—Alcohols; Ethers; Aldehydes; Ketones
-
- 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
- C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2211/04—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen, halogen, and oxygen
- C10M2211/044—Acids; Salts or esters 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
- C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2211/06—Perfluorinated compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2211/08—Halogenated waxes
-
- 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
- C10M2219/024—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds of esters, e.g. fats
-
- 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
- C10M2223/041—Triaryl phosphates
Definitions
- a lubricating oil of low pour point comprising as principal constituents large proportions based on the total composition of each of highly refined mineral spray oil fractions and highly refined highly paraflinic viscous mineral lubricating oil fractions, the blend having a pour point below F.
Landscapes
- 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
Patented Dec.'19, 1939 UNITED STATES PATENTQFFHCE LUBRICATING OIL Ulric -B. Bray, Palos Verdes Estates, Califi, assigner to Union Oil Company of California, L'os Angeles, Calif., a corporationof California g No Drawing. Application August 2,1937,
Serial No. 156,959
, 7 Claims.
This invention relates to lubricating oils and particularly to light lubricating oils having low pour point.
- The object of the invention is primarily to produce a lubricating oil for use at low temperatures.
. In the ordinary practice of the invention, about 75% of a naphthenic type spray oil is combinedwith about 25% of a highlyparaifinic viscous lubricating oil. For example, where the paraffinic lubricating oil is of the S. A. E. 50 type with a pour point about 15 F., the resultant blend will possessa pour point of around 30 F. below zero; Spray oils of the mentioned classification are those produced from light stocks by heavy solvent treatment such as treatment with liquid sulfur dioxide, accompanied with an additional sulfuric acid treatment,'if required, to yield an oil having a viscosity of about 85 seconds Saybolt Universal at 100 F., a pour point below 50 F. and an unsulfonatable residue of about 90. This unsulfonatable residue value is commonly known as deOng number and is a designation well known in the art for highly refined agricultural spray oils. This value represents that proportion of the oil not subject to sulfonation by a well known sulfonation test described in Industrial and Engineering Chemistry, vol. 18 (1926), page 175. Briefly, the oil is treated with sulfuric acid exactly 37 normal (100%) in a water bath at 95 C. to 100 C.ordinarily at 210 F.--for a 40 period of one hour. The above acid is added to the oil in proportions of 20 c. c. of acid to 5 c. c. 1 of oil in two dumps in aBabcock cream test bottle, the mix being agitated every 10 minutes. After phase separation, the unsulfonated material is the unsulfonatable residue, the percentage of which constitutes the test for the oil and is often called deOng number.
The highly paraifinic lubricating oil indicated may be one produced by heavy solvent treatment of Mid-Continent paraffinic type oils or other paraffinic stocks to yield very highly parafiinic lubricating oil fractions from which (following dewaxing) all aromatic and other readily reactive materials are removed by the solvent treatment. This form of treatment is now well known and v (Li includes treatment with such solvents as liquid sulfur dioxide-benzol mixtures, furfural, phenol, cresol, dichlorethyl ether and the like.
Also a corresponding Pennsylvania Bright Stock sometimes may be used as the lubricating oil fraction F 5 product had a viscosity index of about 92, high 10 stability and aviscosity of about 150 seconds or less Saybolt Universal at 100 F.
Instead of employing of spray oil and 25% of lubricating oil, the proportions may be varied as desiredto attain the resultant physical 15 characteristics required. For example, the content'of a highly paraffinic lubricating material may be somewhat reduced, or if an oil of higher pour point is permitted, it may be increased, for example to equal parts of the two constituents;
Instead of employing the highly refined paraffinic lubricating fraction mentioned (S. A. E. 50), a similar fraction of higher or lower viscosity may be employed, the proportion of spray oil being correspondingly modified, that is, being increased 25 as the parafiinic lubricating oil grade is heavier, or decreased as the lubricating oil is lighter, where a product of the same viscosity is required.
The oil blends of this invention may also contain a so-called oiliness agent, to increase film 30 strength and impart wear resistant qualities. Such agents are commonly chlorinated organic materials having boiling points high enough to avoid being boiled off in the crank cases of internal'combustion engines. These materials may 35 be added in amounts from about 0.5% to 4% or 5%, e. g. 1%. Suitable such substances include methyl dichlorstearate or palmitate, ethyl dichlormargarate, chlorinated paraffin, chlorinated diphenyl oxide, methyl chloronaphthenate and 40 other kindred chlorinated compounds. Sulfur compounds may be used sometimes for the same purpose such as sulfurized sperm oil or lard oil, and phosphorous bearing materials such as tricresyl phosphate. agents may be added where necessary or desirable. This type of material is known for this purpose and is representedby a group of condensation products of aromatic hydrocarbons (ring compounds) with chlorinated long chain 50 aliphatic hydrocarbons, produced in the presence of a metallic halide by the Friedel-Crafts catalytic reaction. The chain compounds may be paraflin, petrolatum, montan wax and other heavy hydrocarbons, and the ring compounds 55 Also, pour point depressing may be naphthalene, anthracene, diphenyl and the like as disclosed by Davis No. 1,815,022, MacLaren No. 1,963,917 and No. 1,963,918 and other patents. Such materials are added to the lubricating oil in small amounts such as from 0.2% or 0.3% to perhaps as much as 4% or 5%, ordinarily about 0.8% to 1%, according to the effect desired or the character of the lubricating oil stock used, i. e., wax content thereof.
It is to be understood that these disclosures are merely illustrative of the generic invention and are not to be taken as limiting.
I claim:
1. A lubricating oil comprising as important constituents a large proportion based on the total composition of a highly refined mineral spray oil 'having a high deOng number and low viscosity,
and a highly refined parafiinic viscous lubricating oil fraction of relatively greater viscosity.
2. A mineral lubricating oil of low pour point comprising a highly refinedlow viscosity mineral spray oil approximating 50% or more of the composition, and a highly refined highly parafiinic a Saybolt Universal viscosity at 100 F. not exceeding about 150 seconds.
5. A lubricating oil of low pour point comprising as principal constituents large proportions based on the total composition of each of highly refined mineral spray oil fractions and highly refined highly paraflinic viscous mineral lubricating oil fractions, the blend having a pour point below F.
,6. A low pour point mineral lubricating oil comprising as principal constituents a highly refined, viscous, paraflinic type lubricating oil fraction and a large proportion based on the total composition of a highly refined low viscosity naphthenic mineral oil having a high unsulfonatable residue, a viscosity in the order of about 85 seconds Saybolt Universal at 100 F., and a pour point at least as low as about minus 50 F., the blend having a pour point at least as low as about minus 30 F.
I. A low pour point mineral lubricating oil comprising as principal constituents highly refined paraifmic viscous mineral lubricating oil
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US156959A US2183783A (en) | 1937-08-02 | 1937-08-02 | Lubricating oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US156959A US2183783A (en) | 1937-08-02 | 1937-08-02 | Lubricating oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2183783A true US2183783A (en) | 1939-12-19 |
Family
ID=22561792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US156959A Expired - Lifetime US2183783A (en) | 1937-08-02 | 1937-08-02 | Lubricating oil |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2183783A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2420108A (en) * | 1944-07-13 | 1947-05-06 | Standard Oil Dev Co | Process for treating a solvent-extracted petroleum distillate with clay and lime |
| US2453708A (en) * | 1946-10-15 | 1948-11-16 | Standard Oil Co | Grinding oil composition |
| US2453710A (en) * | 1946-09-17 | 1948-11-16 | Standard Oil Co | Grinding oil composition |
| US2639651A (en) * | 1946-04-19 | 1953-05-26 | Union Oil Co | Flux oil and method of revivifying asphalt roads therewith |
| US3011974A (en) * | 1959-06-22 | 1961-12-05 | Gulf Research Development Co | Process for preparing a multiviscosity lubricating oil |
| US3450636A (en) * | 1967-08-22 | 1969-06-17 | Sinclair Research Inc | Automatic transmission fluid of reduced susceptibility oxidative degradation |
-
1937
- 1937-08-02 US US156959A patent/US2183783A/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2420108A (en) * | 1944-07-13 | 1947-05-06 | Standard Oil Dev Co | Process for treating a solvent-extracted petroleum distillate with clay and lime |
| US2639651A (en) * | 1946-04-19 | 1953-05-26 | Union Oil Co | Flux oil and method of revivifying asphalt roads therewith |
| US2453710A (en) * | 1946-09-17 | 1948-11-16 | Standard Oil Co | Grinding oil composition |
| US2453708A (en) * | 1946-10-15 | 1948-11-16 | Standard Oil Co | Grinding oil composition |
| US3011974A (en) * | 1959-06-22 | 1961-12-05 | Gulf Research Development Co | Process for preparing a multiviscosity lubricating oil |
| US3450636A (en) * | 1967-08-22 | 1969-06-17 | Sinclair Research Inc | Automatic transmission fluid of reduced susceptibility oxidative degradation |
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