US2927892A - Oil dispersions of calcium acetate hydrates - Google Patents

Oil dispersions of calcium acetate hydrates Download PDF

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Publication number
US2927892A
US2927892A US676475A US67647557A US2927892A US 2927892 A US2927892 A US 2927892A US 676475 A US676475 A US 676475A US 67647557 A US67647557 A US 67647557A US 2927892 A US2927892 A US 2927892A
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Prior art keywords
calcium acetate
lubricating oil
weight percent
oil
calcium
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Arnold J Morway
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ExxonMobil Technology and Engineering Co
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Exxon Research and Engineering Co
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Priority to NL230275D priority Critical patent/NL230275A/xx
Priority to NL110612D priority patent/NL110612C/xx
Priority to BE570069D priority patent/BE570069A/xx
Application filed by Exxon Research and Engineering Co filed Critical Exxon Research and Engineering Co
Priority to US676475A priority patent/US2927892A/en
Priority to FR1200659D priority patent/FR1200659A/fr
Application granted granted Critical
Publication of US2927892A publication Critical patent/US2927892A/en
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • 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
    • C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
    • 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
    • C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less 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
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
    • C10M2207/122—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms 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
    • C10M2207/28—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
    • C10M2207/287—Partial esters
    • C10M2207/289—Partial esters containing free 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
    • C10M2207/28—Esters
    • C10M2207/30—Complex esters, i.e. compounds containing at leasst three esterified carboxyl groups and derived from the combination of at least three different types of the following five types of compounds: monohydroxyl compounds, polyhydroxy xompounds, monocarboxylic acids, polycarboxylic acids or hydroxy carboxylic acids
    • C10M2207/302—Complex esters, i.e. compounds containing at leasst three esterified carboxyl groups and derived from the combination of at least three different types of the following five types of compounds: monohydroxyl compounds, polyhydroxy xompounds, monocarboxylic acids, polycarboxylic acids or hydroxy carboxylic acids derived from the combination of monocarboxylic acids, dicarboxylic acids and dihydroxy compounds only and having no free hydroxy or carboxyl 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
    • C10M2207/28—Esters
    • C10M2207/34—Esters having a hydrocarbon substituent of thirty or more carbon atoms, e.g. substituted succinic acid 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
    • 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/11—Complex polyesters
    • C10M2209/111—Complex polyesters having dicarboxylic acid centres
    • 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
    • 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • 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
    • 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
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/02—Esters of silicic acids
    • 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
    • C10N2040/25—Internal-combustion engines
    • 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
    • C10N2040/25—Internal-combustion engines
    • C10N2040/252—Diesel engines
    • 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
    • C10N2040/25—Internal-combustion engines
    • C10N2040/252—Diesel engines
    • C10N2040/253—Small diesel engines
    • 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
    • C10N2040/46—Textile oils
    • 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 calcium acetate hydrates may be preformed and then added directly to the lubricating oil in the desired proportions with stirring.
  • the hydrates are formed in situ in the lubricating oil as follows: A slurry is formed of the oil and a calcium base, such as calcium hydroxide, calcium oxide, calcium carbonate, etc. When the calcium oxide or carbonate is used, a small amount of water may be added in order to furnish the water of hydration. The acetic acid is then added slowly (to prevent overheating) to the slurry while stirring.
  • the temperature of the reaction mixture should not be allowed to exceed about 180,-200 F., as above this temperature the dihydrate tends to lose one mole of the water of hydration and is converted
  • the reaction mixture is heated above about 180 .200 F. to form the monohydrate; This monohydrate in turn is relatively stable up to about 300 F.
  • other additives may then be added to the composition, after which it is persions have the disadvantages of increased corrosion ing or freezing.
  • the presence of fatty acid salts, or other grease thickener or suspending aids are at times undesirable for certain applications due to side reactions or the formation of residues. that excellent dry (i.e.
  • lubricating compositions containing as the sole salt component either calcium acetate monohydrate, i.e. Ca(CH COO) -H O, calcium acetate dihydrate, i.e., Ca(CH COO)-2H O, or mixtures thereof, will form stable dispersions without the aid of other suspending agents. Also, these hydrates have even better anti-wear and load-carrying ability than the anhydrous calcium acetate.
  • Lublicants of this type are suitable for use in internal combustion engines, textile mill lubricants, and because of their acid neutralizing ability are particularly useful; for lubricating the upper cylinders of marine diesel engines operating on acid-forming fuel such as high-sulfur fuel oils, etc.
  • compositions of the invention will, therefore, comprise a major proportion of "a lubricating oil and about 2 to 40, e.g., 5 to Weight percent, based on the weight of the'total composition, of eitherthe monoor dihydrate of calcium acetate, or mixtures thereof.
  • the lubricating oil used in the compositions of the invention may be either mineral lubricating oil or a synthetic lubricating oil.
  • Synthetic lubricating oils which may be used include esters of dibasic acids (e.g., di-2-ethyl hexyl sebacate), esters of glycols (e.g. C Oxo acid diester of tetraethylene glycol), complexesters (e.g.
  • Other additives may also be added to the lubricating composition in amounts of about 0.1 to 10.0 "weight ,percent or more, for example: oxidation inhibitors such ag phenyl alpha naphthylamine; corrosion inhibitors, such It has now been foundof the emulsion break- I 1 dispersions are formed cooled.
  • the hydrates may be formed in the lubricating oil in any proportion, however, for ,plant operation, it is more economicalto form a hydrate concentrate, i.e., about 30 to 60 weight percent of the hydrate in the oil, and then to cut the concentrate back by blending with additional lubricating oil to form the final composition.
  • a hydrate concentrate i.e., about 30 to 60 weight percent of the hydrate in the oil
  • additional lubricating oil to form the final composition.
  • Both'the monoand dihydrate are useful in the lubricating oil compositions.
  • such dispersions tend to be more viscous than dispersions formed with either the monohydrate or anhydrous calcium acetate per se, and when used in relatively large concentrations, -e.g., 20 to 40 weight percent, it tends to form solid
  • the monohydrate formsexcellent stable dispersions which show little tendency to solidify upon increasing temperatures, and are particularly desirable for use in equipment normally handling fluid lubricants at elevated temperatures.
  • the anhydrous form of the calcium acetate while readily dispersed in the'lubricating oil, during storage tends to separate fromthe lubricant and for this reason Will not form satisfactory lubricants, particularly when used in low viscosity oils.
  • EXAMPLE IA A base material was prepared as follows: 58.0 weight percent of a'min'eral lubricating oil SUS at 100 F.) which was a Mid-Continent phenol-extracted type mineral oil distillate and 17.0 weight percent- 0f hydrated lime were added to a kettle and mixed to form a smooth intimate slurry. Then, without external heating, 25.0 weight percent of glacial acetic acid was gradually added taking care not to allow .the temperature to rise" above 200' F. After all the acetic acid was added, the mixture 4 was allowed to cool to 150 P.
  • Example 1V The product of Example 1V had a V.I. of 94, a sulfated ash content of 5.57 wt. percent, and in a 120 hour Caterpillar engine test showed excellent wear reductionof the rings and good cleanliness.
  • EXAMPLE IIB 20 weight percent of the product of Example LEA was added to 80 weight percent of mineral oil (same as in IA). This diluted product was passed twice through a Gaulin homogenizer operating at 6,000 p.s.i.
  • EXAMPLE IIIA EXAMPLE IIIB The base product formed in Example IIIA was diluted in the same manner as Example 1B.
  • EXAMPLE IV A base grease containing the monohydrate was formed according to the manner of Example H Aexcept that a heavier. mineral lubricating oil having a viscosity of 80 SUS at 210 F. was used. 18.00 weight percent of this base material was then diluted with 40.63 Weight percent of mineral lubricating oil having a viscosity of 55 SUS at 210 F. and 41.37 Weight percent of a mineral lubricating oil havinga viscosity of 80 SUS at 210 F. The blend was then passed through a Gaulin homogenizer operating at 6,000 p.s.i. 1
  • compositions and physical properties of the above lubricants are listed in the following tables.
  • a dry lubricating composition comprising a major proportion of lubricating oil and as a sole salt component about 2 to 40 wt. calcium acetate hydrate selected from the group consisting of calcium acetate monohydrate, calcium acetate dihydrate and mixtures thereof.
  • composition according to claim .1 containing 5 to 40 weight percent of said hydrate.
  • composition according to claim 1 wherein said hydrate is formed in situ by the neutralization of acetic acid with a calcium base.

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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)
US676475A 1957-08-06 1957-08-06 Oil dispersions of calcium acetate hydrates Expired - Lifetime US2927892A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL230275D NL230275A (it) 1957-08-06
NL110612D NL110612C (it) 1957-08-06
BE570069D BE570069A (it) 1957-08-06
US676475A US2927892A (en) 1957-08-06 1957-08-06 Oil dispersions of calcium acetate hydrates
FR1200659D FR1200659A (fr) 1957-08-06 1958-07-28 Compositions lubrifiantes

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US676475A US2927892A (en) 1957-08-06 1957-08-06 Oil dispersions of calcium acetate hydrates

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US2927892A true US2927892A (en) 1960-03-08

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BE (1) BE570069A (it)
FR (1) FR1200659A (it)
NL (2) NL230275A (it)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3111381A (en) * 1960-05-31 1963-11-19 Exxon Research Engineering Co Method of preparing finely divided solid metal salts
US3116247A (en) * 1959-12-11 1963-12-31 Shell Oil Co Clay grease compositions
US3182020A (en) * 1961-06-30 1965-05-04 Socony Mobil Oil Co Inc Stabilized calcium acetate oil dispersions
US3206399A (en) * 1961-09-29 1965-09-14 Socony Mobil Oil Co Inc Diesel lubricating oil
EP1504668A1 (en) * 2003-08-08 2005-02-09 Verdugt B.V. Food preservative

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2079051A (en) * 1933-03-15 1937-05-04 Standard Oil Co Lubricating oil
US2274676A (en) * 1940-04-05 1942-03-03 Clarence E Earle Lubricant containing lithium salts
US2384551A (en) * 1944-03-24 1945-09-11 Carbide & Carbon Chem Corp Lubricant
US2607735A (en) * 1949-03-12 1952-08-19 Standard Oil Dev Co Alkaline earth metal soap greases
US2671758A (en) * 1949-09-27 1954-03-09 Shell Dev Colloidal compositions and derivatives thereof
US2744870A (en) * 1953-11-24 1956-05-08 Shell Dev Lubricating compositions
US2863847A (en) * 1955-04-01 1958-12-09 Exxon Research Engineering Co Lubricating oils thickened to a grease with hydrous metal salts and process for forming same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2079051A (en) * 1933-03-15 1937-05-04 Standard Oil Co Lubricating oil
US2274676A (en) * 1940-04-05 1942-03-03 Clarence E Earle Lubricant containing lithium salts
US2384551A (en) * 1944-03-24 1945-09-11 Carbide & Carbon Chem Corp Lubricant
US2607735A (en) * 1949-03-12 1952-08-19 Standard Oil Dev Co Alkaline earth metal soap greases
US2671758A (en) * 1949-09-27 1954-03-09 Shell Dev Colloidal compositions and derivatives thereof
US2744870A (en) * 1953-11-24 1956-05-08 Shell Dev Lubricating compositions
US2863847A (en) * 1955-04-01 1958-12-09 Exxon Research Engineering Co Lubricating oils thickened to a grease with hydrous metal salts and process for forming same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3116247A (en) * 1959-12-11 1963-12-31 Shell Oil Co Clay grease compositions
US3111381A (en) * 1960-05-31 1963-11-19 Exxon Research Engineering Co Method of preparing finely divided solid metal salts
US3182020A (en) * 1961-06-30 1965-05-04 Socony Mobil Oil Co Inc Stabilized calcium acetate oil dispersions
US3206399A (en) * 1961-09-29 1965-09-14 Socony Mobil Oil Co Inc Diesel lubricating oil
EP1504668A1 (en) * 2003-08-08 2005-02-09 Verdugt B.V. Food preservative
WO2005013700A1 (en) * 2003-08-08 2005-02-17 Kemira Chemsolutions B.V. Food preservative
US20060198925A1 (en) * 2003-08-08 2006-09-07 Van Ooijen Johannes A C Food preservative

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NL230275A (it)
NL110612C (it)
BE570069A (it)
FR1200659A (fr) 1959-12-23

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