US2607734A - Process of manufacturing hydroxy acid greases and product thereof - Google Patents
Process of manufacturing hydroxy acid greases and product thereof Download PDFInfo
- Publication number
- US2607734A US2607734A US163328A US16332850A US2607734A US 2607734 A US2607734 A US 2607734A US 163328 A US163328 A US 163328A US 16332850 A US16332850 A US 16332850A US 2607734 A US2607734 A US 2607734A
- Authority
- US
- United States
- Prior art keywords
- grease
- oil
- soap
- hydroxy
- greases
- 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
- 238000000034 method Methods 0.000 title claims description 15
- 150000001261 hydroxy acids Chemical class 0.000 title claims description 14
- 230000008569 process Effects 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title description 4
- 239000004519 grease Substances 0.000 claims description 35
- 239000000344 soap Substances 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 18
- 239000010687 lubricating oil Substances 0.000 claims description 11
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 7
- 239000000194 fatty acid Substances 0.000 claims description 7
- 229930195729 fatty acid Natural products 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 238000010411 cooking Methods 0.000 claims description 6
- 150000004665 fatty acids Chemical class 0.000 claims description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 6
- 230000001050 lubricating effect Effects 0.000 claims description 6
- 239000011707 mineral Substances 0.000 claims description 6
- 229920006395 saturated elastomer Polymers 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 239000003921 oil Substances 0.000 description 21
- ULQISTXYYBZJSJ-UHFFFAOYSA-N 12-hydroxyoctadecanoic acid Chemical compound CCCCCCC(O)CCCCCCCCCCC(O)=O ULQISTXYYBZJSJ-UHFFFAOYSA-N 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 14
- 235000001465 calcium Nutrition 0.000 description 14
- 239000011575 calcium Substances 0.000 description 14
- 229960005069 calcium Drugs 0.000 description 14
- 229910052791 calcium Inorganic materials 0.000 description 14
- 229940114072 12-hydroxystearic acid Drugs 0.000 description 9
- 230000035515 penetration Effects 0.000 description 8
- 230000018044 dehydration Effects 0.000 description 7
- 238000006297 dehydration reaction Methods 0.000 description 7
- 239000002253 acid Substances 0.000 description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 5
- 235000011941 Tilia x europaea Nutrition 0.000 description 5
- 239000004571 lime Substances 0.000 description 5
- 235000010755 mineral Nutrition 0.000 description 5
- 239000000084 colloidal system Substances 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 4
- 238000003801 milling Methods 0.000 description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 239000002480 mineral oil Substances 0.000 description 3
- 235000010446 mineral oil Nutrition 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 235000011116 calcium hydroxide Nutrition 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- KIHBGTRZFAVZRV-UHFFFAOYSA-N 2-Hydroxyoctadecanoic acid Natural products CCCCCCCCCCCCCCCCC(O)C(O)=O KIHBGTRZFAVZRV-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 244000287024 Katherine wheel Species 0.000 description 1
- 241001446467 Mama Species 0.000 description 1
- 241000258241 Mantis Species 0.000 description 1
- 241000489861 Maximus Species 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- BZKPWHYZMXOIDC-UHFFFAOYSA-N acetazolamide Chemical compound CC(=O)NC1=NN=C(S(N)(=O)=O)S1 BZKPWHYZMXOIDC-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical class [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- -1 hydroxy fatty acid Chemical class 0.000 description 1
- 239000010688 mineral lubricating oil Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229940114926 stearate Drugs 0.000 description 1
- 229960004274 stearic acid Drugs 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000008096 xylene 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
- C10M5/00—Solid or semi-solid compositions containing as the essential lubricating ingredient mineral lubricating oils or fatty oils and their use
-
- 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
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino 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
- 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
- C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
- C10M2215/26—Amines
-
- 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
- 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—Form in which the lubricant is applied to the material being lubricated semi-solid; greasy
-
- 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
Definitions
- the presentinvention relates wanimproved process "of' preparing lubricating greases and, particularly, grea'sescontain-ing soaps of'hydroxy acidsgsuch as l2-hydroxy stearic-acid. In-par ti'cular, it relates to a process"bywhich' stable calcium base greases of superior consistency may be prepared underconditions 'of'dehydrationa's contrasted to the conventional hydration. L
- the soap-oil concentrate iscooled 'Whenopgrease's'containing' calcium soaps of hydroxy acids?
- The-norm'al procedure is carried out in to -a temperature close to the boiling pOintof waterrfor example, about 225 F., while additional mineral oil and small quantitiesof water are addedand stirred into the mixture.
- additional lubricating oil is added to the soap.- water-o'il mixture until a grease is obtained having the' desired consistency.
- This-product is then cooled --to a suita'ble drawing. temperature, for example, about R, and is drawn i'nto: 138,-: ceptacles or-packages.
- the soap is in'a semi-fl-uid state. If it is allowed 'to cool to 175 F. or so'without addition of further oil or water it forms a dry, hard, brittle mass.
- the soap-oil mixture forms a soft plastic composition of grease-like structure. If the productof' the 'first step is merely diluted with oilan'd cooled, for example, to about 175,F. or so without the'additio'n of water, the soap and oil .will, separate into'f'two phases.
- a preferred process by which a superior grease can be prepared is as follows:
- the hydroxy fatty acid which may be 12-hydroxy stearic acid or other monoor dihydroxy fatty acids having from about 12 to 24 carbon atoms, is reacted with lime at a temperature of about 180 to 200 F., preferably about 190 F.
- the hydroxy acid and lime are preferably reacted in the presence of a relatively small amount of oil, for example, about /2 to 5 times as much oil, by weight, as hydroxy acid.
- the oil used is ordinarily mineral base lubricating oil of appropriate viscosity for the service for which the grease is prepared, i. e., between 60 and. 5,000, preferably about 100 to 1,000 S. U. S. at 100 F.
- the quantity of lubricating oil preferably should be from about equal to about four times the weight of the hydroxy acid. After the hydroxy acid and 7 little have thus been reacted in'the presence'of lubricating oil, the mass is slowly heated forslow 4 shows the increase in consistency which seem-- panied dehydration.
- EXAMPLE'I 1 The process is essentially one of dehydra- :tion accompanied ,by mechanical shearing or milling. This is directly opposite to the manufacture of conventional lime soap grease which require hydration with 0.5 to 2% of water in order to obtain a stable dispersion of the soap.
- composition percent by weight % by weight:
- EXAMPLE IV Another grease composition likewise containing calcium soap of 12-hydroxy stearic acid and an oil of similar viscosity index (about 55) but of higher viscosity, about 900 S. U. S. at 100 F.,
- the grease must be prepared at a maximum temperature not more than about 275 F., preferably about 270F.
- The'usual additives and modifiers such as oxidation inhibitors, corrosion inhibitors, extreme pressure agents, and the like, may be used in the greases of this invention, if desired, as will be obvious to those skilled in the art.
- types of greases usually contain from about'5 to'j 12% of the hydroxy acid, preferably 12-hydroxy stearic acid, in the form of the calcium soap, but proportions may be as low as 2% or as high as 30%, based on the weight of the final composition.
- a lubricating grease composition consist-- ing essentially of mineral base lubricating oil having a viscosity between 60 and ,5,000 S. U. .S. atLIjOOfF F. and thickened" to grease consistency with'about 2 'to 30% 'by Weight, based'fon the total composition. of "substantially anhydrous 5.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL76943D NL76943C (enrdf_load_stackoverflow) | 1950-05-20 | ||
US163328A US2607734A (en) | 1950-05-20 | 1950-05-20 | Process of manufacturing hydroxy acid greases and product thereof |
GB19544/50A GB703620A (en) | 1950-05-20 | 1950-08-04 | Process of manufacturing hydroxy fatty acid greases and product thereof |
FR1029699D FR1029699A (fr) | 1950-05-20 | 1950-12-07 | Procédé de préparation de graisses à base d'acides oxhydriles et produits en résultant |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US163328A US2607734A (en) | 1950-05-20 | 1950-05-20 | Process of manufacturing hydroxy acid greases and product thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
US2607734A true US2607734A (en) | 1952-08-19 |
Family
ID=22589533
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US163328A Expired - Lifetime US2607734A (en) | 1950-05-20 | 1950-05-20 | Process of manufacturing hydroxy acid greases and product thereof |
Country Status (4)
Country | Link |
---|---|
US (1) | US2607734A (enrdf_load_stackoverflow) |
FR (1) | FR1029699A (enrdf_load_stackoverflow) |
GB (1) | GB703620A (enrdf_load_stackoverflow) |
NL (1) | NL76943C (enrdf_load_stackoverflow) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE944628C (de) * | 1952-12-05 | 1956-06-21 | Bataafsche Petroleum | Verfahren zur Herstellung eines praktisch wasserfreien Schmierfettes |
US2822331A (en) * | 1954-02-03 | 1958-02-04 | Texas Co | Anhydrous calcium 12-hydroxy stearate grease |
US2831811A (en) * | 1954-07-08 | 1958-04-22 | Sinclair Refining Co | Production of anhydrous calcium grease |
US2841556A (en) * | 1955-12-19 | 1958-07-01 | Standard Oil Co | Process for preparing anhydrous lime grease |
US2847381A (en) * | 1955-12-13 | 1958-08-12 | Pure Oil Co | Anhydrous calcium-base grease |
US2858273A (en) * | 1956-05-28 | 1958-10-28 | Union Oil Co | Extreme pressure lubricating grease |
US2862884A (en) * | 1954-03-23 | 1958-12-02 | Texas Co | Process for anhydrous calcium 12-hydroxy stearate and estolide containing grease |
US2877181A (en) * | 1956-05-02 | 1959-03-10 | Texas Co | Stabilized calcium fatty acid base grease |
US2899388A (en) * | 1959-08-11 | Calcium base grease containing a nickel | ||
US2915467A (en) * | 1954-11-23 | 1959-12-01 | Sinclair Refining Co | Method of preparing an anhydrous calcium grease |
US2940931A (en) * | 1956-07-20 | 1960-06-14 | Sinclair Refining Co | Process for preparing rheopectic calcium 12-hydroxy stearate grease |
US2947696A (en) * | 1957-04-22 | 1960-08-02 | Sinclair Refining Co | Calcium base grease containing a calcium salt of an amidic acid |
US2978410A (en) * | 1957-11-27 | 1961-04-04 | Union Oil Co | Corrosion-resistant grease |
US3000823A (en) * | 1955-03-07 | 1961-09-19 | Texaco Inc | Preparation of lubricating greases from unsaturated fatty acid materials |
US3077438A (en) * | 1960-12-02 | 1963-02-12 | Warner Lambert Pharmaceutical | Stabilization of orally administrable methenamine mandelate sesame oil suspensions containing 12-hydroxy stearic acid triglyceride |
US3171812A (en) * | 1960-07-25 | 1965-03-02 | Exxon Research Engineering Co | Antiplugging agents for hydroxy stearate greases |
US3211650A (en) * | 1962-03-15 | 1965-10-12 | Cato Oil And Grease Company In | Lubricating grease and method of making the same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2380960A (en) * | 1940-01-09 | 1945-08-07 | Internat Lubricant Corp | Production of lubricants |
US2450224A (en) * | 1946-12-06 | 1948-09-28 | Texas Co | Method of preparation of barium soap greases |
US2503749A (en) * | 1945-02-28 | 1950-04-11 | Texas Co | Barium soap grease compositions and method of preparation |
-
0
- NL NL76943D patent/NL76943C/xx active
-
1950
- 1950-05-20 US US163328A patent/US2607734A/en not_active Expired - Lifetime
- 1950-08-04 GB GB19544/50A patent/GB703620A/en not_active Expired
- 1950-12-07 FR FR1029699D patent/FR1029699A/fr not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2380960A (en) * | 1940-01-09 | 1945-08-07 | Internat Lubricant Corp | Production of lubricants |
US2503749A (en) * | 1945-02-28 | 1950-04-11 | Texas Co | Barium soap grease compositions and method of preparation |
US2450224A (en) * | 1946-12-06 | 1948-09-28 | Texas Co | Method of preparation of barium soap greases |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2899388A (en) * | 1959-08-11 | Calcium base grease containing a nickel | ||
DE944628C (de) * | 1952-12-05 | 1956-06-21 | Bataafsche Petroleum | Verfahren zur Herstellung eines praktisch wasserfreien Schmierfettes |
US2822331A (en) * | 1954-02-03 | 1958-02-04 | Texas Co | Anhydrous calcium 12-hydroxy stearate grease |
US2862884A (en) * | 1954-03-23 | 1958-12-02 | Texas Co | Process for anhydrous calcium 12-hydroxy stearate and estolide containing grease |
US2831811A (en) * | 1954-07-08 | 1958-04-22 | Sinclair Refining Co | Production of anhydrous calcium grease |
US2915467A (en) * | 1954-11-23 | 1959-12-01 | Sinclair Refining Co | Method of preparing an anhydrous calcium grease |
US3000823A (en) * | 1955-03-07 | 1961-09-19 | Texaco Inc | Preparation of lubricating greases from unsaturated fatty acid materials |
US2847381A (en) * | 1955-12-13 | 1958-08-12 | Pure Oil Co | Anhydrous calcium-base grease |
US2841556A (en) * | 1955-12-19 | 1958-07-01 | Standard Oil Co | Process for preparing anhydrous lime grease |
US2877181A (en) * | 1956-05-02 | 1959-03-10 | Texas Co | Stabilized calcium fatty acid base grease |
US2858273A (en) * | 1956-05-28 | 1958-10-28 | Union Oil Co | Extreme pressure lubricating grease |
US2940931A (en) * | 1956-07-20 | 1960-06-14 | Sinclair Refining Co | Process for preparing rheopectic calcium 12-hydroxy stearate grease |
US2947696A (en) * | 1957-04-22 | 1960-08-02 | Sinclair Refining Co | Calcium base grease containing a calcium salt of an amidic acid |
US2978410A (en) * | 1957-11-27 | 1961-04-04 | Union Oil Co | Corrosion-resistant grease |
US3171812A (en) * | 1960-07-25 | 1965-03-02 | Exxon Research Engineering Co | Antiplugging agents for hydroxy stearate greases |
US3077438A (en) * | 1960-12-02 | 1963-02-12 | Warner Lambert Pharmaceutical | Stabilization of orally administrable methenamine mandelate sesame oil suspensions containing 12-hydroxy stearic acid triglyceride |
US3211650A (en) * | 1962-03-15 | 1965-10-12 | Cato Oil And Grease Company In | Lubricating grease and method of making the same |
Also Published As
Publication number | Publication date |
---|---|
FR1029699A (fr) | 1953-06-04 |
NL76943C (enrdf_load_stackoverflow) | |
GB703620A (en) | 1954-02-10 |
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