US2939437A - Process and composition for preserving metal surfaces against rust - Google Patents
Process and composition for preserving metal surfaces against rust Download PDFInfo
- Publication number
- US2939437A US2939437A US582635A US58263556A US2939437A US 2939437 A US2939437 A US 2939437A US 582635 A US582635 A US 582635A US 58263556 A US58263556 A US 58263556A US 2939437 A US2939437 A US 2939437A
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- United States
- Prior art keywords
- composition
- oil
- engine
- metal surfaces
- internal combustion
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/005—Selecting particular materials
-
- 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
Definitions
- the present invention relatesto the art of preserving metal surfaces against rust corrosion during storage and, in particular, to the preservation of internal surfaces in internal combustion engines against rusting during extended periods of non-use. More particularly it relates to an atomizable composition for'protecting and preserving such metal surfaces.
- the present invention entirely eliminates such procedure; it enables the application of a tenacious, lasting film of an oleaginous, rust inhibiting composition to all such surfaces at one time and while the engine is running.
- An object of this invention is to provide an atomizable composition for protecting metal surfaces and especially ferrous metal-surfaces which are difficult to reach.
- Another object of this invention is to provide a process for coating interior surfaces in an internal combustion engine with a rust preventing film while the engine is in operation under its own power, which film is nonflammable and indestructible by the heat or products of combustion present at its application.
- a further object is to provide a method for depositing a non-flammable, adherent film coating on interior surfaces of an internal combustion engine in operation.
- a still further object is to provide a novel rust inhibiting composition for application to interior surfaces of internal combustion engines.
- a suitable rust inhibiting composition in liquid form is packaged in a known type of pressurized spray dispensing can or Aerosol bomb in admixture with a propellant that is liquid at the can pressure but which expands rapidly into a gaseous state when released, so that the contents of the can are discharged as an atomized spray or mist.
- a gasoline engine When a gasoline engine is to be treated for storage it is run at a fast idle or slow race speed and the composition is sprayed from the can into the carburetor air intake while the engine is running. In a Diesel engine the composition is sprayed into the inlet manifold while the engine is running. In both cases spraying is continued until suflicient protecting coating has been deposited, by which time the atomized coating composition entrained in the stream of induction air and propellant gas will have coursed entirely through the engine and will have been deposited as a continuous adherent film completely covering the inlet valve stems, valve seats, cylinder walls, exhaust valve seats, exhaust valve stems and into the exhaust manifold.
- the liquid'components are placed in a suitable container, preferably metal, orbomb provided with a controllable atomizing exit'capable of producing a fine spray or foam.
- the propellant is then introduced under pressure until sufficient is'added to atomize allliquid components upon opening the valve ofthe container.
- the product is a nonflammable mist or foam which on contact with the interior surfaces of a running engine deposits an adherent, oleaginous, nonflammable film that does not break down under the heat. and products of combustion and which retains its form and constituency in situ until removed.
- An advantage of the invention is that it provides a safe and dependable composition for protecting metal surfaces. Another advantage is that the compositions are economical to make and do not present toxic or health hazards in use. They do not have an'injurious effect on internal combustion engines and after service is renewed the engines do not require cleaning. The compositions can be applied by the ordinary mechanic or normal careful person. Other advantages will be apparent from the above.
- the novel composition of this invention comprises in a suitable container an inert gaseous propellant, lubricating oil, either petroleum or vegetable oil such as degummed castor oil or a mixture of these oils, with a relatively low volatility, a relatively volatile hydrocarbon solvent for the oils, a ferrous metal corrosion inhibitor and an oil-soluble dispersing and deterging agent, e.g. an ammonium, alkali metal or alkaline earth metal salt of a hydrocarbon monosulfonic acid or monosulfuric acid ester of 8 to 18 carbon atoms.
- a satisfactory mixture of the oils may be obtained by heating them to a high temperature and mixing them at such temperature.
- many types of oil and proportions were used.
- Suitable solvents comprise, among others, benzene, toluene, solvent naphtha, benzine and gasoline.
- the liquid components of the composition comprise 60% to of lubri cating oil which may be petroleum oil, a degummed castor oil or a mixture of these oils, 4% to 8% volatile hydrocarbon solvent, 1.05% to 10% of corrosion inhibitor and 0.05% to 2.5% of oil soluble dispersing and deterging agent, all percentages being by weight.
- Suitable corrosion inhibitors include organic esters of phosphorous acids and thiophosphorous acids, and their metal salts.
- Typical esters include the monoand dioleyl phosphates and monoand di-stearyl phosphate and zinc dithiophosphate. A large number of suitable compounds are given in US Patent No. 2,080,299.
- composition comprising 35% to 45% degurnrncd castor oil, 35% to45% lubricating oil, 4% to 8% volatile hydrocarbon solvent forsaid oil, 0.05% to 10% of a corrosion inhibitor, and 1.05% to 2.5% of an oil-soluble agent having dispersing properties.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Description
United States Patent" PROCESS AND COMPOSITION FOR PRESERVING METAL SURFACES AGAINST RUST George A. Barker, 4717 Yuma St. NW., Washington, 1 a No Drawing. Filed May'4, 1956, Ser. No. 582,635
7 s Claims. 7 (Cl. 123-4) The present inventionrelatesto the art of preserving metal surfaces against rust corrosion during storage and, in particular, to the preservation of internal surfaces in internal combustion engines against rusting during extended periods of non-use. More particularly it relates to an atomizable composition for'protecting and preserving such metal surfaces.
Storage of farm machinery, marine engines, and other types of seasonal use apparatus powered by internal combustion engines presents a serious problem in the matter of rust prevention. So far as I am aware, prior to the advent of this invention no satisfactory method has been devised for applying a protective coating comprising a corrosion inhibitor and protective film to the inlet valve stems, valve seats, cylinder walls, exhaust valve seats, and exhaust valve stems of internal combustion engines that has not necessitated stopping an engine and partially dismantling it.
The present invention entirely eliminates such procedure; it enables the application of a tenacious, lasting film of an oleaginous, rust inhibiting composition to all such surfaces at one time and while the engine is running.
An object of this invention is to provide an atomizable composition for protecting metal surfaces and especially ferrous metal-surfaces which are difficult to reach.
Another object of this invention is to provide a process for coating interior surfaces in an internal combustion engine with a rust preventing film while the engine is in operation under its own power, which film is nonflammable and indestructible by the heat or products of combustion present at its application.
A further object is to provide a method for depositing a non-flammable, adherent film coating on interior surfaces of an internal combustion engine in operation.
A still further object is to provide a novel rust inhibiting composition for application to interior surfaces of internal combustion engines.
In carrying out the process of this invention a suitable rust inhibiting composition in liquid form is packaged in a known type of pressurized spray dispensing can or Aerosol bomb in admixture with a propellant that is liquid at the can pressure but which expands rapidly into a gaseous state when released, so that the contents of the can are discharged as an atomized spray or mist.
When a gasoline engine is to be treated for storage it is run at a fast idle or slow race speed and the composition is sprayed from the can into the carburetor air intake while the engine is running. In a Diesel engine the composition is sprayed into the inlet manifold while the engine is running. In both cases spraying is continued until suflicient protecting coating has been deposited, by which time the atomized coating composition entrained in the stream of induction air and propellant gas will have coursed entirely through the engine and will have been deposited as a continuous adherent film completely covering the inlet valve stems, valve seats, cylinder walls, exhaust valve seats, exhaust valve stems and into the exhaust manifold.
Patented June 7,' 1960 ice The most effective propellants ,I have found as the result of numerousexperiments are the normally gaseous fluorinated hydrocarbons known by the commercial name of Freon oriits equivalent, namely: 1,1'-difluorethane, trichlorotrifluorethane dichlorodiiluoromethane, monochlorodifluoromethane, monofluorotrichloromethane, lchloro-l,1-difluorethane, and 1,2-dichloro-l,l,2;2 tetrailuoroethane. They-are nontoxic, nonflammable, and odorless. The liquid'components are placed in a suitable container, preferably metal, orbomb provided with a controllable atomizing exit'capable of producing a fine spray or foam. The propellant is then introduced under pressure until sufficient is'added to atomize allliquid components upon opening the valve ofthe container.
When the rust inhibitor composition hereinafter described is atomized with the gaseous propellant the product is a nonflammable mist or foam which on contact with the interior surfaces of a running engine deposits an adherent, oleaginous, nonflammable film that does not break down under the heat. and products of combustion and which retains its form and constituency in situ until removed.
An advantage of the invention is that it provides a safe and dependable composition for protecting metal surfaces. Another advantage is that the compositions are economical to make and do not present toxic or health hazards in use. They do not have an'injurious effect on internal combustion engines and after service is renewed the engines do not require cleaning. The compositions can be applied by the ordinary mechanic or normal careful person. Other advantages will be apparent from the above.
The novel composition of this invention comprises in a suitable container an inert gaseous propellant, lubricating oil, either petroleum or vegetable oil such as degummed castor oil or a mixture of these oils, with a relatively low volatility, a relatively volatile hydrocarbon solvent for the oils, a ferrous metal corrosion inhibitor and an oil-soluble dispersing and deterging agent, e.g. an ammonium, alkali metal or alkaline earth metal salt of a hydrocarbon monosulfonic acid or monosulfuric acid ester of 8 to 18 carbon atoms. Instead of using a solvent, a satisfactory mixture of the oils may be obtained by heating them to a high temperature and mixing them at such temperature. During the development of this process many types of oil and proportions were used. Petroleum oil with the corrosion inhibitor and oil-soluble agent gave good results but the combination of petroleum oil and degummed castor oil combined was found to be more satisfactory. Suitable solvents comprise, among others, benzene, toluene, solvent naphtha, benzine and gasoline. In general the liquid components of the composition comprise 60% to of lubri cating oil which may be petroleum oil, a degummed castor oil or a mixture of these oils, 4% to 8% volatile hydrocarbon solvent, 1.05% to 10% of corrosion inhibitor and 0.05% to 2.5% of oil soluble dispersing and deterging agent, all percentages being by weight.
Suitable corrosion inhibitors include organic esters of phosphorous acids and thiophosphorous acids, and their metal salts. Typical esters include the monoand dioleyl phosphates and monoand di-stearyl phosphate and zinc dithiophosphate. A large number of suitable compounds are given in US Patent No. 2,080,299.
Among the useful oil soluble dispersing and deterging agents are the sodium, potassium, calcium, and magnesium salts of decyl, dodecyl, tetradecyl and octadecyl I claim:
1- Process for coating interior surfaces in an internal combustion engine, which comprises, running the engine and simultaneously spraying into the air intake an atomiged, rustinhibiting mist from an atomizing container es nt ially comprising an inert gaseous, propellant, a lubrisattng Oil, 11 metal corrosion inhibitor and an oil-soluble ,rlctergingagent having dispersing properties.
, 2 Process for Coating interior surfaces in an internal combustion enginewhich comprises, running the engine and simultaneously spraying into the air intake and atomized mist from an atomizing container essentially comprising an inert gaseous propellant, and a liquid. composition comprising 35% to 45% degurnrncd castor oil, 35% to45% lubricating oil, 4% to 8% volatile hydrocarbon solvent forsaid oil, 0.05% to 10% of a corrosion inhibitor, and 1.05% to 2.5% of an oil-soluble agent having dispersing properties.
References Cited in the file of this patent UNITED STATES PATENTS 2,293,580 Walker Aug. 18, 1942 2,420,127 Doelling May 6, 1947 2,433,572 McCarthy et a1. Dec. 30, 1947 2,520,356 Bishop Aug. 29, 1950 FOREIGN PATENTS 100,712 Australia Apr. 2, 1937
Claims (1)
1. PROCESS FOR COATING INTERIOR SURFACES IN AN INTERNAL COMBUSTION ENGINE, WHICH COMPRISES, RUNNING THE ENGINE AND SIMULTANEOUSLY SPRAYING INTO THE AIR INTAKE AN ATOMIZED RUST INHIBITING MIST FROM AN ATOMIZING CONTAINER ESSENTIALLY COMPRISING AN INERT GASEOUS PROPELLANT, A LUBRICATING OIL, A METAL CORROSION INHIBITOR AND AN OIL-SOLUBLE DETERGING AGENT HAVING DISPERSING PROPERTIES.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US582635A US2939437A (en) | 1956-05-04 | 1956-05-04 | Process and composition for preserving metal surfaces against rust |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US582635A US2939437A (en) | 1956-05-04 | 1956-05-04 | Process and composition for preserving metal surfaces against rust |
Publications (1)
Publication Number | Publication Date |
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US2939437A true US2939437A (en) | 1960-06-07 |
Family
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Family Applications (1)
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US582635A Expired - Lifetime US2939437A (en) | 1956-05-04 | 1956-05-04 | Process and composition for preserving metal surfaces against rust |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3188166A (en) * | 1962-09-26 | 1965-06-08 | Int Harvester Co | Method of preserving combustion chambers of engine from corrosion during storage |
US3281629A (en) * | 1962-09-05 | 1966-10-25 | Dassault Electronique | Control system for sequentially energizing motor phase windings |
US20050067045A1 (en) * | 2003-09-30 | 2005-03-31 | Mcclure Thomas W. | Marine engine corrosion prevention system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2293580A (en) * | 1939-05-13 | 1942-08-18 | Du Pont | Process for the treatment of ironcontaining surfaces and product thereof |
US2420127A (en) * | 1947-05-06 | Corrosion preventive composition | ||
US2433572A (en) * | 1946-03-14 | 1947-12-30 | Gulf Research Development Co | Corrosion preventive compositions |
US2520356A (en) * | 1946-09-25 | 1950-08-29 | Tide Water Associated Oil Comp | Method for inhibiting corrosion of ferrous metal |
-
1956
- 1956-05-04 US US582635A patent/US2939437A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2420127A (en) * | 1947-05-06 | Corrosion preventive composition | ||
US2293580A (en) * | 1939-05-13 | 1942-08-18 | Du Pont | Process for the treatment of ironcontaining surfaces and product thereof |
US2433572A (en) * | 1946-03-14 | 1947-12-30 | Gulf Research Development Co | Corrosion preventive compositions |
US2520356A (en) * | 1946-09-25 | 1950-08-29 | Tide Water Associated Oil Comp | Method for inhibiting corrosion of ferrous metal |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3281629A (en) * | 1962-09-05 | 1966-10-25 | Dassault Electronique | Control system for sequentially energizing motor phase windings |
US3188166A (en) * | 1962-09-26 | 1965-06-08 | Int Harvester Co | Method of preserving combustion chambers of engine from corrosion during storage |
US20050067045A1 (en) * | 2003-09-30 | 2005-03-31 | Mcclure Thomas W. | Marine engine corrosion prevention system |
US7036534B2 (en) | 2003-09-30 | 2006-05-02 | Mcclure Thomas W | Marine engine corrosion prevention system |
US20060272737A1 (en) * | 2003-09-30 | 2006-12-07 | Mcclure Thomas W | Marine engine corrosion prevention system |
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