US2784104A - Water displacing corrosion inhibiting compositions and process of treating metal surfaces therewith - Google Patents
Water displacing corrosion inhibiting compositions and process of treating metal surfaces therewith Download PDFInfo
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- US2784104A US2784104A US520128A US52012855A US2784104A US 2784104 A US2784104 A US 2784104A US 520128 A US520128 A US 520128A US 52012855 A US52012855 A US 52012855A US 2784104 A US2784104 A US 2784104A
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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
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/085—Phosphorus oxides, acids or salts
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/086—Chromium oxides, acids or salts
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- 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
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- 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
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- 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
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/026—Butene
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
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- 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
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- 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
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- 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
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/40—Fatty vegetable or animal oils
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- 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
- C10M2207/40—Fatty vegetable or animal oils
- C10M2207/402—Castor oils
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- 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
- C10M2207/40—Fatty vegetable or animal oils
- C10M2207/404—Fatty vegetable or animal oils obtained from genetically modified species
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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- 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
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- 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
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- 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
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- 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
- C10M2215/044—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms having cycloaliphatic groups
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/26—Amines
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- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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- 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
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
Definitions
- This invention relates to oil base compositions which may be appliedas coatings to wet surfaces to displace water therefrom so as to provide corrosion-inhibiting coatings on metal surfaces so treated.
- the object of this invention is to provide water displacing corrosion inhibiting compositions which may be easily applied to any metal surface and provide excellent protective coatings thereon.
- a further object of the invention is to provide a corrosion inhibiting composition
- a corrosion inhibiting composition comprising a major proportion of an oleaginous vehicle, a minor proportion of an oil soluble hydrophilic wetting agent and the reaction product of substantially equimolar proportions of dicyclohexylamine and octanoic acid.
- Another object of the invention is to provide a process for treating metal members even when wet with water by applying a composition comprising a major proportion of an oleaginous vehicle, a minor proportion of an oil soluble hydrophilic wetting agent and the reaction product of substantially equimolar proportions of dicyclohexylamine and octanoic acid.
- Small amounts of the order of up to of the weight of the composition may comprise other additives such as phosphates (zinc phosphate), chromates (sodium chromate) and organic corrosion inhibitors (diisopropylamine nitrite), thickening agents such as polyisobutylene, antioxidants such as dimethyltertbutyl phenol, and the like.
- the oleaginous vehicle is preferably a relatively nonvolatile fluid of a viscosity of from 5 centipoises to 50 poises at 25 C. though ordinarily the viscosity should be less than 20 poises for ease in application.
- Suitable oleaginous vehicles are various liquid oils and fats such as petroleum hydrocarbon oil, and particularly oil of a viscosity of from 10 centipoises to 5 poises at F., vegetable oils such as castor oil, and synthetic oils such as long chain esters of dibasic acids-for example bis(2- ethyl-hexyl) sebacates and the like sold in the trade as Ucon fluid.
- Petroleum sultonates or mahogany soaps of which sodium and barium mahogany sulfonate are examples, are quite satisfactory.
- the reaction product of substantially equimolar proportions of dicyclohexylamine and octanoic acid is read ily produced by simply mixing the two ingredients at room temperatures.
- the octanoic acid may be any isomer or mixtures thereof, but best results are had with N-octanoic acid or the Z-ethyl hexyl acid.
- the proportions comprise approximately 100 grams of the octanoic acid. to 117 grams of the dicyclohexylamine.
- the reaction is complete in 10 minutes and produces a crystalline dicyclohexylamine octoate product.
- the reaction product may be dissolved in a small amount of kerosene or xylol or other organic solvent and then added to the oleaginous vehicle.
- the reaction product of dicyclohexylamine and octanoic acid has been found to be exceptionally and uniquely effective.
- shorter carbon chain acids produce much more readily volatile products with dicyclohexylamine so that after a short period of exposure to the atmosphere they will have disappeared from the coatings of the composition.
- Acids of longer chain length than octanoic acid have substantially reduced corrosion-inhibiting characteristics.
- the oleaginous vehicle, the hydrophilic wetting agent and the dicyclohexylamine octoate may be admixed in any desired order. Good results have been obtained by heating the oleaginous vehicle to 100 F. to 120 F. and stirring in the dicyclohexylamine octoate, the latter being dissolved in a small quantity of kerosene, and then the wetting agent is added.
- the composition may be applied to metal members by dipping, brushing, spraying, or roller coating. After a brief drainage, a thin covering film ot' the composition will be present to protect the metal surfaces.
- the metal to be treated may be damp or wet with water, and quite cold, but the composition will displace the moisture readily from its surfaces.
- Sheet metal members, castings, wire, strip, fabricated members, ship interiors, barrels and other containers, are examples of products that may be treated. Barrels and completely closed structures will be effectively protected if the oleaginous "ehicle composition contains 0.1 to 1% of the dicyclohexylamine octoate. Totally exposed members or members subjected to wet or highly humid con-' ditions should be coated with compositions having at least 3% of the dicyclohexyl octoate.
- metals which may be effectively protected comprise steel, cast iron, 12% chromium iron or other lower moderately stain-resisting steels, copper, brass and aluminum.
- Example I Two sets of panels of SAE 1040 steel were dipped in each of two compositions comprising uncompounded Steel hydraulic cylinders were coated with a composition comprising 95 parts of straight mineral oil stock of a viscosity of SAE No. 10, 4 parts of dicyclohexylamine octoate and 1 part of mahogany petroleum sulfonate.
- the cylinders were kept in an atmosphere of 95% rela tive humidity and subjected to'the following cycling test for a total of 28 days: Hold 8 hours at 80 F., heat slowly for 4 hours to 125 F., hold 8 hours at 125 F. and cool slowly in 4 hours to 60 F. No corrosion was found in the cylinders after this 28-day cycling test.
- Example 11 Wet steel panels were immersed in a 10% dicyclohexylamine octoate, 2% mahogany petroleum sulfonate, and 88% by weight SAE No. 20 oil composition. After withdrawal and drainage, a thin uniform, unbroken coating was present on all the surfaces. The steel panels did not show any rust or corrosion after exposure to an industrial outdoor atmosphere for two months.
- a homogeneous corrosion-inhibiting composition suitable for application to damp and wet metal surfaces consisting essentially of a solution of from 75 to 99.8% by weight of a liquid oleaginous vehicle consisting essentially of a hydrocarbon lubricating oil of a viscosity of below 50 poises at 25 C., from 10% to 0.1% by weight 4 of a hydrophilic wetting agent dissolved in the vehicle, the wetting agent being selected from the group consisting of petroleum sulfonates, sorbitan monolaurate, sor- 4 bitan monopalmitate, sorbitan monooleate and sorbitan monopalmitate polyoxyethylene derivatives, and from 15% to 0.1% by weight of the reaction product of substantially equimolar proportions of dicyclohexylamine and octanoic acid.
- a homogeneous corrosion-inhibiting composition suitable for application to damp and Wet metal surfaces consisting essentially of a solution of from 80% to 98% by weight of a liquid oleaginous vehicle consisting essentially of a hydrocarbon lubricating oil of a viscosity of from 10 centipoises to 5 poises at 25 C., from 5% to 0.5% by weight of a hydrophilic wetting agent dissolved in the vehicle, the wetting agent being selected from the group consisting of petroleum sulfonates, sorbitan monolnuratc, sorbitan monopalmitate, sorbitan monooleate and sorbitnn monopalmitate polyoxyethylene derivatives and from 0.1% to 15% by weight of the reaction product of substantially cquimolar proportions of dicyclohexylamine and octanoic acid.
- the method of treating metal surfaces which may be damp or wet with water to provide corrosion-inhibiting coatings displacing any water from the surface, the steps comprising applying to the metal surface a thin coating of a homogeneous composition consisting essentially of, a solution of from 75% to 99.8% by weight of a liquid oleaginous vehicle consisting essentially of a hydrocarbon lubricating oil of a viscosity of from 10 centipoises to 5 poises at 25 C., from v10% to 9.1% by weight of a hydrophilic wetting agent dissolved in the vehicle, the wetting agent being selected from the group consisting of petroleumsulfonates, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monooleate and sorbitan monopalrnitate polyoi yethylene derivatives and from 15% to 0.1% by weight of the reaction product of substantially equimolar proportions of dicyclohexylamine and octanoic acid.
Description
United States PatentfO WATER DISPLACING CORROSION INHIBITING COMPOSITIONS AND PROCESS OF TREATING METAL SURFACES THEREWITH Maurice S. Baseman, Keith S. Johnson, and Sherwin E. Baseman, Pittsburgh, Pa.
No Drawing. Application July 5, 1955, Serial No. 520,128
3 Claims. (Cl. 106-14) This invention relates to oil base compositions which may be appliedas coatings to wet surfaces to displace water therefrom so as to provide corrosion-inhibiting coatings on metal surfaces so treated.
The prevention of corrosion of metal surfaces, and particularly of ferrous metal surfaces, has been a considerremove, and are not completely satisfactory in preventing corrosion under many conditions. Furthermore, such slashing compounds ordinarily must be applied to bonedry metal surfaces.
The object of this invention is to provide water displacing corrosion inhibiting compositions which may be easily applied to any metal surface and provide excellent protective coatings thereon.
A further object of the invention is to provide a corrosion inhibiting composition comprising a major proportion of an oleaginous vehicle, a minor proportion of an oil soluble hydrophilic wetting agent and the reaction product of substantially equimolar proportions of dicyclohexylamine and octanoic acid.
Another object of the invention is to provide a process for treating metal members even when wet with water by applying a composition comprising a major proportion of an oleaginous vehicle, a minor proportion of an oil soluble hydrophilic wetting agent and the reaction product of substantially equimolar proportions of dicyclohexylamine and octanoic acid.
Other objects will in part be obvious and will in part appear hereinafter.
We have discovered a novel corrosion-inhibiting composition comprising essentially:
(a) From 75 to 99.8 parts by weight of a relatively The total comprises 100 parts by weight. Small amounts of the order of up to of the weight of the composition may comprise other additives such as phosphates (zinc phosphate), chromates (sodium chromate) and organic corrosion inhibitors (diisopropylamine nitrite), thickening agents such as polyisobutylene, antioxidants such as dimethyltertbutyl phenol, and the like.
Special wrapice The oleaginous vehicle is preferably a relatively nonvolatile fluid of a viscosity of from 5 centipoises to 50 poises at 25 C. though ordinarily the viscosity should be less than 20 poises for ease in application. Suitable oleaginous vehicles are various liquid oils and fats such as petroleum hydrocarbon oil, and particularly oil of a viscosity of from 10 centipoises to 5 poises at F., vegetable oils such as castor oil, and synthetic oils such as long chain esters of dibasic acids-for example bis(2- ethyl-hexyl) sebacates and the like sold in the trade as Ucon fluid.
Numerous oil soluble hydrophilic wetting agents may be employed in preparing the compositions. Petroleum sultonates or mahogany soaps, of which sodium and barium mahogany sulfonate are examples, are quite satisfactory. Sorbitan monolaurate, sorbitan monopalmitate, sorbitan monooleate and sorbitan monopalmitate polyoxyethylene derivatives sold as Tween 40, are other suitable wetting agents.
The reaction product of substantially equimolar proportions of dicyclohexylamine and octanoic acid is read ily produced by simply mixing the two ingredients at room temperatures. The octanoic acid may be any isomer or mixtures thereof, but best results are had with N-octanoic acid or the Z-ethyl hexyl acid. The proportions comprise approximately 100 grams of the octanoic acid. to 117 grams of the dicyclohexylamine. The reaction is complete in 10 minutes and produces a crystalline dicyclohexylamine octoate product. The reaction product may be dissolved in a small amount of kerosene or xylol or other organic solvent and then added to the oleaginous vehicle.
The reaction product of dicyclohexylamine and octanoic acid has been found to be exceptionally and uniquely effective. Thus shorter carbon chain acids produce much more readily volatile products with dicyclohexylamine so that after a short period of exposure to the atmosphere they will have disappeared from the coatings of the composition. Acids of longer chain length than octanoic acid have substantially reduced corrosion-inhibiting characteristics.
The oleaginous vehicle, the hydrophilic wetting agent and the dicyclohexylamine octoate may be admixed in any desired order. Good results have been obtained by heating the oleaginous vehicle to 100 F. to 120 F. and stirring in the dicyclohexylamine octoate, the latter being dissolved in a small quantity of kerosene, and then the wetting agent is added.
The composition may be applied to metal members by dipping, brushing, spraying, or roller coating. After a brief drainage, a thin covering film ot' the composition will be present to protect the metal surfaces. The metal to be treated may be damp or wet with water, and quite cold, but the composition will displace the moisture readily from its surfaces.
Sheet metal members, castings, wire, strip, fabricated members, ship interiors, barrels and other containers, are examples of products that may be treated. Barrels and completely closed structures will be effectively protected if the oleaginous "ehicle composition contains 0.1 to 1% of the dicyclohexylamine octoate. Totally exposed members or members subjected to wet or highly humid con-' ditions should be coated with compositions having at least 3% of the dicyclohexyl octoate. Examples of metals which may be effectively protected comprise steel, cast iron, 12% chromium iron or other lower moderately stain-resisting steels, copper, brass and aluminum.
The following examples illustrate the invention:
Example I Two sets of panels of SAE 1040 steel were dipped in each of two compositions comprising uncompounded Steel hydraulic cylinders were coated with a composition comprising 95 parts of straight mineral oil stock of a viscosity of SAE No. 10, 4 parts of dicyclohexylamine octoate and 1 part of mahogany petroleum sulfonate. The cylinders were kept in an atmosphere of 95% rela tive humidity and subjected to'the following cycling test for a total of 28 days: Hold 8 hours at 80 F., heat slowly for 4 hours to 125 F., hold 8 hours at 125 F. and cool slowly in 4 hours to 60 F. No corrosion was found in the cylinders after this 28-day cycling test.
Example 11! Wet steel panels were immersed in a 10% dicyclohexylamine octoate, 2% mahogany petroleum sulfonate, and 88% by weight SAE No. 20 oil composition. After withdrawal and drainage, a thin uniform, unbroken coating was present on all the surfaces. The steel panels did not show any rust or corrosion after exposure to an industrial outdoor atmosphere for two months.
The panels in each of these three examples after treatment were coated with a thin layer of the composition and presented a clean appearance. The coatings could be readily wiped off or dissolved completelyin one brief dip in a solvent cleaner such as trichlorethylene.
It will be understood that this specification and examples are illustrative and not limiting of the invention. We claim as our invention:
l. A homogeneous corrosion-inhibiting composition suitable for application to damp and wet metal surfaces, consisting essentially of a solution of from 75 to 99.8% by weight of a liquid oleaginous vehicle consisting essentially of a hydrocarbon lubricating oil of a viscosity of below 50 poises at 25 C., from 10% to 0.1% by weight 4 of a hydrophilic wetting agent dissolved in the vehicle, the wetting agent being selected from the group consisting of petroleum sulfonates, sorbitan monolaurate, sor- 4 bitan monopalmitate, sorbitan monooleate and sorbitan monopalmitate polyoxyethylene derivatives, and from 15% to 0.1% by weight of the reaction product of substantially equimolar proportions of dicyclohexylamine and octanoic acid.
2. A homogeneous corrosion-inhibiting composition suitable for application to damp and Wet metal surfaces, consisting essentially of a solution of from 80% to 98% by weight of a liquid oleaginous vehicle consisting essentially of a hydrocarbon lubricating oil of a viscosity of from 10 centipoises to 5 poises at 25 C., from 5% to 0.5% by weight of a hydrophilic wetting agent dissolved in the vehicle, the wetting agent being selected from the group consisting of petroleum sulfonates, sorbitan monolnuratc, sorbitan monopalmitate, sorbitan monooleate and sorbitnn monopalmitate polyoxyethylene derivatives and from 0.1% to 15% by weight of the reaction product of substantially cquimolar proportions of dicyclohexylamine and octanoic acid.
3. 1n the method of treating metal surfaces which may be damp or wet with water to provide corrosion-inhibiting coatings displacing any water from the surface, the steps comprising applying to the metal surface a thin coating of a homogeneous composition consisting essentially of, a solution of from 75% to 99.8% by weight of a liquid oleaginous vehicle consisting essentially of a hydrocarbon lubricating oil of a viscosity of from 10 centipoises to 5 poises at 25 C., from v10% to 9.1% by weight of a hydrophilic wetting agent dissolved in the vehicle, the wetting agent being selected from the group consisting of petroleumsulfonates, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monooleate and sorbitan monopalrnitate polyoi yethylene derivatives and from 15% to 0.1% by weight of the reaction product of substantially equimolar proportions of dicyclohexylamine and octanoic acid.
References Cited in the file of this patent UNITED STATES PATENTS 2,330,524
OTHER REFERENCES Condensed Chemical Dictionary (1950). published by Reinhold (p. 137 relied upon).
Claims (1)
1. A HOMOGENEOUS CORROSION-INHIBITING COMPOSITION SUITABLE FOR APPLICATION TO DAMP AND WET METAL SURFACES, CONSISTING ESSENTIALLY OF A SOLUTION OF FROM 75% TO 99.8% BY WEIGHT OF A LIQUID OLEAGINOUS VEHICLE CONSISTING ESSENTIALLY OF A HYDROCARBON LUBRICATING OIL OF A VISCOSITY OF BELOW 50 POISES AT 25*C., FROM 10% TO 0.1% BY WEIGHT OF A HYDROPHILIC WETTING AGENT DISSOLVED IN THE VEHICLE, THE WETTING AGENT BEING SELECTED FROM THE GROUP CONSISTING OF PETROLEUM SULFONATES, SORBITAN MONOLAURATE, SORBITAN MONOPALMITATE, SORBITAN MONOOLEATE AND SCRIBITAN MONOPALMITATE POLYOXYETHYLENE DERIATIVES, AND FROM 15% TO 0.1% BY WEIGHT OF THE REACTION PRODUCT OF SUBSTANTIALLY EQUIMOLAR PROPORTIONS OF DICYCLOHEXYLAMINE AND OCATANOIC ACID.
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Application Number | Priority Date | Filing Date | Title |
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US520128A US2784104A (en) | 1955-07-05 | 1955-07-05 | Water displacing corrosion inhibiting compositions and process of treating metal surfaces therewith |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US520128A US2784104A (en) | 1955-07-05 | 1955-07-05 | Water displacing corrosion inhibiting compositions and process of treating metal surfaces therewith |
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US2784104A true US2784104A (en) | 1957-03-05 |
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US520128A Expired - Lifetime US2784104A (en) | 1955-07-05 | 1955-07-05 | Water displacing corrosion inhibiting compositions and process of treating metal surfaces therewith |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1144990B (en) * | 1957-03-30 | 1963-03-07 | Philips Nv | Liquid for drying water-moist objects |
US3081175A (en) * | 1958-01-03 | 1963-03-12 | Hughes & Co | Protection of structures in sea water |
US4687634A (en) * | 1986-10-31 | 1987-08-18 | Ronco Laboratories, Inc. | Process for inhibiting corrosion of metal surfaces |
US4812503A (en) * | 1987-12-11 | 1989-03-14 | Ronco Laboratories, Inc. | Paint composition containing a volatile corrosion inhibitor |
US5391396A (en) * | 1992-06-30 | 1995-02-21 | Sollac | Method for protecting metal products against corrosion and metal products obtained from said method |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2330524A (en) * | 1941-06-16 | 1943-09-28 | Alox Corp | Corrosion inhibitor |
US2634237A (en) * | 1949-04-15 | 1953-04-07 | Shell Dev | Rust inhibiting composition |
US2653854A (en) * | 1949-10-17 | 1953-09-29 | Cromwell Paper Co | Corrosion inhibiting packaging material and method of making |
-
1955
- 1955-07-05 US US520128A patent/US2784104A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2330524A (en) * | 1941-06-16 | 1943-09-28 | Alox Corp | Corrosion inhibitor |
US2634237A (en) * | 1949-04-15 | 1953-04-07 | Shell Dev | Rust inhibiting composition |
US2653854A (en) * | 1949-10-17 | 1953-09-29 | Cromwell Paper Co | Corrosion inhibiting packaging material and method of making |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1144990B (en) * | 1957-03-30 | 1963-03-07 | Philips Nv | Liquid for drying water-moist objects |
US3081175A (en) * | 1958-01-03 | 1963-03-12 | Hughes & Co | Protection of structures in sea water |
US4687634A (en) * | 1986-10-31 | 1987-08-18 | Ronco Laboratories, Inc. | Process for inhibiting corrosion of metal surfaces |
US4812503A (en) * | 1987-12-11 | 1989-03-14 | Ronco Laboratories, Inc. | Paint composition containing a volatile corrosion inhibitor |
US5391396A (en) * | 1992-06-30 | 1995-02-21 | Sollac | Method for protecting metal products against corrosion and metal products obtained from said method |
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