US2258591A - Lubricating oil composition - Google Patents
Lubricating oil composition Download PDFInfo
- Publication number
- US2258591A US2258591A US306330A US30633039A US2258591A US 2258591 A US2258591 A US 2258591A US 306330 A US306330 A US 306330A US 30633039 A US30633039 A US 30633039A US 2258591 A US2258591 A US 2258591A
- Authority
- US
- United States
- Prior art keywords
- lubricating oil
- salts
- acids
- oil composition
- 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
Links
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
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/26—Carboxylic acids; Salts thereof
- C10M129/48—Carboxylic acids; Salts thereof having carboxyl groups bound to a carbon atom of a six-membered aromatic ring
- C10M129/54—Carboxylic acids; Salts thereof having carboxyl groups bound to a carbon atom of a six-membered aromatic ring containing hydroxy 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
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/26—Carboxylic acids; Salts thereof
- C10M129/48—Carboxylic acids; Salts thereof having carboxyl groups bound to a carbon atom of a six-membered aromatic ring
- C10M129/50—Carboxylic acids; Salts thereof having carboxyl groups bound to a carbon atom of a six-membered aromatic ring monocarboxylic
-
- 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
- C10M131/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing halogen
- C10M131/08—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing halogen containing carbon, hydrogen, halogen and oxygen
- C10M131/12—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
- 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
-
- 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
- C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl 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
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/141—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings monocarboxylic
-
- 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
- C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/142—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings polycarboxylic
-
- 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
- C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/144—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings containing hydroxy 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
- C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/146—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings having carboxyl groups bound to carbon atoms of six-membeered aromatic rings having a hydrocarbon substituent 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/26—Overbased carboxylic acid salts
- C10M2207/262—Overbased carboxylic acid salts derived from hydroxy substituted aromatic acids, e.g. salicylates
-
- 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
- C10M2207/28—Esters
- C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic 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
- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic 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
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/286—Esters of polymerised unsaturated 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
- C10M2207/28—Esters
- C10M2207/287—Partial 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
- 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
- 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
-
- 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
- C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
- C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
- C10M2219/086—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing sulfur atoms 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
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2010/00—Metal present as such or in compounds
- C10N2010/02—Groups 1 or 11
-
- 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
- C10N2010/00—Metal present as such or in compounds
- C10N2010/06—Groups 3 or 13
-
- 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
- C10N2010/08—Groups 4 or 14
-
- 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
- C10N2010/14—Group 7
-
- 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
- C10N2010/16—Groups 8, 9, or 10
-
- 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
- C10N2070/00—Specific manufacturing methods for lubricant compositions
- C10N2070/02—Concentrating of additives
Definitions
- the salts of the aromatic acids employed may i be those of mononuclear aromatic acids, such as benzoic acid, or polynuclear, such as naphthoic or anthracene carboxylic acid. These acids are all thermally very stable.
- 'polyvalent' metal salts of the aromatic monocarboxylic acids and of these magnesium, calcium, strontium, barium, zinc, nickel, manganese, lead, copper, cobalt, and aluminum appear to be the most active.
- the salts should be soluble in the lubricating oil.
- alkyl radicals having preferably not more than six carbon atoms. Longer alkyl chains, though suitable from the point of view of enhancing solubility, tend to be thermally unstable. ing action of alkyl radicals are the following: Calcium naphthoate is practically insoluble in mineral lubricating oils, while the calcium salt of diamyl naphthoic acid is readily soluble.
- Zinc benzoate dissolves in a furfural-reflned Venezuelan distillate to the extent of about .03%. Methyl benzoate of zinc dissolves to about 1%. The solubility of the zinc salt of para-tertiary butyl benzoic acid is about 1.5% and that of ditertiary butyl benzoic acid 2%.
- the aromatic acids may also conta' polar substitution radicals, i. e. radicals containing elements other than C and H, such as hydroxy, alkoxy, aroxy, hydrosulfide, amino, imino, halogen, etc., radicals. While, in general, these polar radicals raise the solubility to a' lesser extent than alkyl radicals, and often depress, rather than enhance it, they frequently are. advantageous in further reducing corrosiveness. The effect .of' halogen on solubility is illustrated by para-chlorbenzoic acid or para-brombenzoic acid, the zinc salts of which are soluble to the extent of about .5%.
- polar substitution radicals i. e. radicals containing elements other than C and H, such as hydroxy, alkoxy, aroxy, hydrosulfide, amino, imino, halogen, etc.
- Very useful and comparatively easily prepared aromatic carboxylic acids are those prepared from alkyl phenols by the addition of CO2 (Kolbe reaction).
- Alkyl phenols are obtainable by extraction of coal tar distillates or cracked petroleum distillates with aqueous alkali and acidification of the aqueous extract.
- An example of a salt of an acid of this type is the zinc salt of thymotinic acid which is quite soluble even in V. I. lubricating oil and displays excellent anti-ring stickingproperties.
- solubiliz- Although we prefer to use about .5 to 1.5% of the salts in our lubricating oil, suitable amounts may be varied from approximately 2% to 2.5%. Amounts in excess-of this limit tend to cause undue increase in viscosity as well as jelling of the oil.
- Crankcase lubricating oils containing salts of monocarboxylic aromatic acids may also have 'present other compounding ingredients, such as oxidation inhibitors, pour-point depressors, blooming agents and extreme pressure agents, preferably those containing at least one of the elements phosphorus, sulfur or chlorine.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL90945A NL50248C (xx) | 1938-12-05 | 1938-12-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2258591A true US2258591A (en) | 1941-10-14 |
Family
ID=19787220
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US306330A Expired - Lifetime US2258591A (en) | 1938-12-05 | 1939-11-27 | Lubricating oil composition |
US395391A Expired - Lifetime US2293419A (en) | 1938-12-05 | 1941-05-27 | Process for solubilizing lubricating oil additives |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US395391A Expired - Lifetime US2293419A (en) | 1938-12-05 | 1941-05-27 | Process for solubilizing lubricating oil additives |
Country Status (5)
Country | Link |
---|---|
US (2) | US2258591A (xx) |
DE (1) | DE723649C (xx) |
FR (2) | FR862110A (xx) |
GB (2) | GB536827A (xx) |
NL (1) | NL50248C (xx) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2477913A (en) * | 1945-04-12 | 1949-08-02 | Shell Dev | Mineral lubricating oil |
US2483859A (en) * | 1945-07-31 | 1949-10-04 | Shell Dev | Antiring sticking lubricating composition |
US2944970A (en) * | 1954-07-12 | 1960-07-12 | Shell Oil Co | High temperature grease compositions containing salicylic acid derivatives |
US2958662A (en) * | 1955-09-26 | 1960-11-01 | Shell Oil Co | Detergent and wear inhibiting mineral oil compositions |
US3656886A (en) * | 1970-01-12 | 1972-04-18 | Shell Oil Co | Corrosion inhibitors |
US10072359B2 (en) | 2011-06-06 | 2018-09-11 | Mitsubishi Chemical Corporation | Oil agent for carbon fiber precursor acrylic fiber, oil composition for carbon fiber precursor acrylic fiber, processed-oil solution for carbon-fiber precursor acrylic fiber, and method for producing carbon-fiber precursor acrylic fiber bundle, and carbon-fiber bundle using carbon-fiber precursor acrylic fiber bundle |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2447234A (en) * | 1942-03-31 | 1948-08-17 | American Cyanamid Co | Recovery of nicotinic acid from dilute solutions |
US2436589A (en) * | 1945-12-14 | 1948-02-24 | Standard Oil Dev Co | Compounded lubricated oil |
US2744069A (en) * | 1952-04-29 | 1956-05-01 | Shell Dev | Compounded lubricating compositions |
-
1938
- 1938-12-05 NL NL90945A patent/NL50248C/xx active
-
1939
- 1939-11-21 DE DEN43686D patent/DE723649C/de not_active Expired
- 1939-11-27 US US306330A patent/US2258591A/en not_active Expired - Lifetime
- 1939-11-27 GB GB30875/39A patent/GB536827A/en not_active Expired
- 1939-12-05 FR FR862110D patent/FR862110A/fr not_active Expired
-
1941
- 1941-05-27 US US395391A patent/US2293419A/en not_active Expired - Lifetime
-
1944
- 1944-09-14 GB GB17589/44A patent/GB586461A/en not_active Expired
-
1946
- 1946-04-19 FR FR925799D patent/FR925799A/fr not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2477913A (en) * | 1945-04-12 | 1949-08-02 | Shell Dev | Mineral lubricating oil |
US2483859A (en) * | 1945-07-31 | 1949-10-04 | Shell Dev | Antiring sticking lubricating composition |
US2944970A (en) * | 1954-07-12 | 1960-07-12 | Shell Oil Co | High temperature grease compositions containing salicylic acid derivatives |
US2958662A (en) * | 1955-09-26 | 1960-11-01 | Shell Oil Co | Detergent and wear inhibiting mineral oil compositions |
US3656886A (en) * | 1970-01-12 | 1972-04-18 | Shell Oil Co | Corrosion inhibitors |
US10072359B2 (en) | 2011-06-06 | 2018-09-11 | Mitsubishi Chemical Corporation | Oil agent for carbon fiber precursor acrylic fiber, oil composition for carbon fiber precursor acrylic fiber, processed-oil solution for carbon-fiber precursor acrylic fiber, and method for producing carbon-fiber precursor acrylic fiber bundle, and carbon-fiber bundle using carbon-fiber precursor acrylic fiber bundle |
Also Published As
Publication number | Publication date |
---|---|
FR862110A (fr) | 1941-03-10 |
DE723649C (de) | 1942-08-07 |
US2293419A (en) | 1942-08-18 |
GB586461A (en) | 1947-03-19 |
GB536827A (en) | 1941-05-28 |
FR925799A (fr) | 1947-09-12 |
NL50248C (xx) | 1941-04-15 |
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