WO2022210808A1 - 防錆油組成物及びその製造方法 - Google Patents
防錆油組成物及びその製造方法 Download PDFInfo
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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
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/20—Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
- C10M107/30—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M107/32—Condensation polymers of aldehydes or ketones; Polyesters; Polyethers
- C10M107/34—Polyoxyalkylenes
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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
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/04—Hydroxy compounds
- C10M129/10—Hydroxy compounds having hydroxy groups bound to a carbon atom of a six-membered aromatic ring
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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
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/16—Ethers
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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
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/26—Carboxylic acids; Salts thereof
- C10M129/48—Carboxylic acids; Salts thereof having carboxyl groups bound to a carbon atom of a six-membered aromatic ring
- C10M129/54—Carboxylic acids; Salts thereof having carboxyl groups bound to a carbon atom of a six-membered aromatic ring containing hydroxy groups
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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
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/68—Esters
- C10M129/74—Esters of polyhydroxy compounds
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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
- C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
- C10M135/08—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium containing a sulfur-to-oxygen bond
- C10M135/10—Sulfonic acids or derivatives thereof
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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
- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
- C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M145/24—Polyethers
- C10M145/26—Polyoxyalkylenes
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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
- C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
- C10M159/02—Natural products
- C10M159/06—Waxes, e.g. ozocerite, ceresine, petrolatum, slack-wax
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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
- C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
- C10M159/12—Reaction products
- C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
- C10M159/22—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products containing phenol radicals
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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
- C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
- C10M159/12—Reaction products
- C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
- C10M159/24—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products containing sulfonic radicals
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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
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- 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
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
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- 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
- 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
- the present invention relates to an antirust oil composition and a method for producing the same.
- Metallic materials made of metals such as iron are generally coated with antirust oil to prevent rust and stains from occurring on the metal surface during manufacturing processes or after product shipment.
- metal materials are subjected to various types of processing such as cutting and pressing using processing oil, and may be cleaned using cleaning liquid during manufacturing.
- Rust-preventive oil is sometimes coated on the surface of metal materials after the metal materials have undergone various processing or have been washed. If the processing oil or cleaning liquid is water-based, in order to prevent rust from being caused by the processing oil or cleaning liquid, the rust preventive oil should be applied after removing the processing oil or cleaning liquid from the metal surface. It should be coated on the metal surface.
- a rust preventive oil with excellent rust preventive properties is applied.
- the water displaceability refers to the ability of the additive to enter between the water (aqueous solution) adhering to the metal surface and the metal to replace the water on the metal surface with the antirust oil.
- a water displacement agent containing a non-aqueous solvent and a cationic activator, or a surfactant composed of a higher amine or a carboxylate thereof, or the like is being developed.
- the rust-preventive oil must have good water displacement properties as well as rust-preventive properties under the exposure environment.
- a rust-preventive oil containing a low-viscosity mineral oil, a high-viscosity mineral oil, a fatty acid amine salt, an ester, and a rust-preventive agent such as a sarcosine-type compound has been used. have been developed (see, for example, Patent Document 2).
- both the additive for imparting water displacement water displacement agent
- the additive for imparting rust prevention rust inhibitor
- rust preventive oil adsorbs to the metal surface, thereby increasing water displacement and Provides rust resistance. Therefore, it is believed that if both water displacement agent and rust preventive agent are blended into rust preventive oil in order to achieve both water displacement and rust preventive properties, they will be competitively adsorbed on the metal surface.
- it is difficult to achieve both water displacement property and rust prevention property For example, with the water displacement agent disclosed in Patent Document 1, sufficient rust prevention was not obtained.
- the rust preventive oil composition disclosed in Patent Document 2 the fatty acid amine salt is thought to act as a water displacement agent, and both the water displacement agent and the rust inhibitor are blended. It is difficult to sufficiently improve the rust resistance.
- the rust preventive oil composition when the rust preventive oil composition is applied to the metal material, for example, the metal material is immersed in the rust preventive oil composition, and the water adhering to the surface of the metal material during immersion mixes with the rust preventive oil composition. Sometimes. Therefore, in order to separate the water mixed in the rust preventive oil composition from the rust preventive oil composition, the rust preventive oil composition is practically required to have water separability.
- the present invention has been made in view of the above circumstances. is to provide
- the present invention provides a rust preventive oil composition having the following constitution and a method for producing the rust preventive oil composition.
- the present inventors solved the above problems by using a combination of a specific water removing agent and a specific rust preventive in addition to a solvent and a base oil in a rust preventive oil composition. After discovering that it is possible, the following invention was completed. That is, the present invention provides the following [1] to [20].
- [1] Contains the following (A-1), (A-2), (B) ⁇ (F) components, relative to the total amount of the above (A-1), (A-2), (B) ⁇ (F) components
- a rust preventive oil composition wherein the content of the component (B) is 2.5% by mass or more.
- Component (A-1) 40° C. kinematic viscosity of 6.00 mm 2 /s or less;
- Solvent (A-2) Component: 40° C. kinematic viscosity of greater than 6.00 mm 2 /s;
- Component: HLB is 6.70 or more, alkylene glycol represented by the general formula (1)
- R 1 and R 2 each independently represent an alkyl group having 1 to 10 carbon atoms, m 1 and m 3 each independently represent an integer of 0 to 10, m 2 is 0 or represents 1, n 1 represents an integer of 1 to 10, the sum of m 1 , m 2 and m 3 is 1 or more, and the product of m 2 and n 1 is 0 or 1;
- F component: full ester of polyhydric alcohol
- the rust preventive oil composition according to any one of [1] to [13], wherein the component (D) is an oxidized wax obtained by oxidizing paraffin wax.
- the component (F) is a full ester of a polyhydric alcohol selected from trimethylolpropane, pentaerythritol and sorbitan and a fatty acid having 8 to 24 carbon atoms.
- the total content of the (A-2) component, the (D) component, the (E) component and the (F) component with respect to the rust preventive oil composition is 5.0% by mass or more and 50.0% by mass or less.
- R 1 and R 2 each independently represent an alkyl group having 1 to 10 carbon atoms, m 1 and m 3 each independently represent an integer of 0 to 10, m 2 is 0 or represents 1, n 1 represents an integer of 1 to 10, the sum of m 1 , m 2 and m 3 is 1 or more, and the product of m 2 and n 1 is 0 or 1;
- F component: full ester of polyhydric alcohol
- the present invention can provide a rust preventive oil composition capable of improving rust preventive properties, water replacement properties and water separation properties, and a method for producing the same.
- this embodiment a rust preventive oil composition according to an embodiment of the present invention (hereinafter sometimes simply referred to as "this embodiment") and a method for producing the same will be specifically described.
- the numerical values related to “less than”, “more than” and “to” regarding the description of numerical ranges are numerical values that can be arbitrarily combined, and the numerical values in the examples are used as the upper limit or lower limit. It is the numerical value obtained.
- the ranges of "A to D” and “C to B” are also included in the present invention as numerical ranges.
- the numerical range “lower limit to upper limit” described in this specification means that the range is equal to or higher than the lower limit and equal to or lower than the upper limit.
- the rust preventive oil composition of the present embodiment contains the following components (A-1), (A-2), (B) to (F), and the above (A-1), (A-2), ( The content of component (B) with respect to the total amount of components B) to (F) is required to be 2.5% by mass or more in the antirust oil composition.
- Component (A-1) 40° C. kinematic viscosity of 6.00 mm 2 /s or less; Solvent (A-2) Component: 40° C. kinematic viscosity of greater than 6.00 mm 2 /s; ) Component: HLB is 6.70 or more, alkylene glycol represented by the general formula (1)
- R 1 and R 2 each independently represent an alkyl group having 1 to 10 carbon atoms
- m 1 and m 3 each independently represent an integer of 0 to 10
- m 2 is 0 or represents 1
- n 1 represents an integer of 1 to 10
- the sum of m 1 , m 2 and m 3 is 1 or more
- the product of m 2 and n 1 is 0 or 1;
- Component (C) At least one selected from metal sulfonates, metal salicylates and metal phenates having a base value of 50 mgKOH/g or less
- component full ester of polyhydric alcohol
- the rust preventive oil composition of the present embodiment lacks any of the above components (A-1), (A-2), and (B) to (F), the content of the above component (B) is If it is not within the above-specified range, the effect of improving rust prevention, water replacement and water separation properties cannot be obtained.
- the performance required of a rust preventive oil composition such as rust prevention, water displacement, and water separation, is a performance expressed according to the degree of adsorption of each component to the surface of the metal material. It is also assumed that these components interfere with each other's adsorption to the surface of the metal material, resulting in competitive adsorption.
- the oil composition can achieve high levels of the contradictory properties of rust prevention, water displacement, and water separation. did.
- the antirust oil composition may be used as it is, or diluted with a solvent, light mineral oil and/or synthetic oil and used as a diluent.
- the dilution rate can be appropriately selected depending on the usage conditions and purpose of use, but it is preferable that the rust preventive oil composition in 100 parts by mass of the diluted solution is 5 parts by mass or more and less than 100 parts by mass. , 10 parts by mass or more and 80 parts by mass or less, and more preferably 20 parts by mass or more and 50 parts by mass or less.
- Each component constituting the antirust oil composition of the present embodiment will be described below.
- the antirust oil composition of the present embodiment is required to contain a solvent having a 40° C. kinematic viscosity of 6.00 mm 2 /s or less.
- the 40° C. kinematic viscosity is preferably 4.00 mm 2 /s or less from the viewpoint of rust prevention, water displacement, and water separation. From the viewpoint of exhibiting good volatility, it is more preferably 3.00 mm 2 /s or less, and even more preferably 2.00 mm 2 /s or less.
- the lower limit is not particularly limited, it is preferably 0.50 mm 2 /s or more, more preferably 0.70 mm 2 /s or more, from the viewpoint of improving the solubility of other components and coating performance. It is preferably 1.00 mm 2 /s or more, and more preferably 1.00 mm 2 /s or more.
- the 40° C. kinematic viscosity is a value measured using a glass capillary viscometer according to JIS K2283:2000.
- the solvent of the present embodiment means a substance used to dissolve other components, and may be liquid or solid. It is possible to use organic solvents, mineral oils, synthetic oils, etc., as long as they are within the range, and it is possible to use organic solvents, mineral oils, and synthetic oils. , mineral or synthetic oils are preferred, organic solvents or mineral oils are more preferred. In this embodiment, organic solvents, mineral oils, and synthetic oils can be used singly or in combination.
- mineral oil residual oil obtained by atmospheric distillation of paraffinic crude oil, intermediate crude oil, or naphthenic crude oil, or distillate oil obtained by vacuum distillation of atmospheric distillation residue oil, and these are commonly used.
- Refined oil obtained by refining according to the method for example, solvent refined oil, hydrogenated refined oil, deasphalted oil, dewaxed oil, clay treated oil, hydrorefined oil and the like.
- Mineral oil obtained by isomerizing wax (GTL wax (Gas To Liquids WAX)) produced by the Fischer-Tropsch process or the like is also included.
- Synthetic oils include poly- ⁇ -olefins, ⁇ -olefin copolymers, polybutenes, alkylbenzenes, polyol esters, dibasic acid esters, polyoxyalkylene glycols, polyoxyalkylene glycol esters, polyoxyalkylene glycol ethers, hindered esters. , silicone oil and the like.
- the organic solvent is preferably at least one selected from nonpolar solvents and aprotic polar solvents.
- hydrocarbon solvents such as aromatic hydrocarbon solvents; alcohol solvents, ester solvents, aldehyde solvents, ketone solvents, ether solvents with 4 or more carbon atoms on one side, a carbon atom-containing solvent such as a solvent containing;
- Organic solvents are organic compounds that are liquid at ambient temperature and that dissolve other substances.
- the organic solvent includes aliphatic hydrocarbons having 8 to 30 carbon atoms, and isoparaffinic solvents having 8 to 30 carbon atoms are more preferable.
- the content of the component (A-1) in the antirust oil composition is preferably 40.0% by mass or more and 95.0% by mass or less from the viewpoint of antirust properties, water displacement properties, and water separation properties. It is preferably 50.0% by mass or more and 90.0% by mass or less, and even more preferably 60.0% by mass or more and 85.0% by mass or less.
- the antirust oil composition of the present embodiment is required to contain a base oil having a kinematic viscosity at 40°C of greater than 6.00 mm 2 /s.
- the rust preventive oil composition of the present embodiment is required to contain components (A-1) and (A-2) having different kinematic viscosities at 40°C. Good water displacement and water separation properties can be achieved. The 40° C.
- kinematic viscosity is preferably 10.00 mm 2 /s or more, more preferably 20.00 mm 2 /s or more, from the viewpoint of rust prevention, water displacement and water separation, and 25.00 mm 2 /s or more, preferably 800.00 mm 2 /s or less, and preferably 600.00 mm 2 / s or less from the viewpoint of improving the solubility of other components and coating performance. More preferably, it is 500.00 mm 2 /s or less.
- the base oil of the present embodiment can be used without any particular limitation as long as it has a kinematic viscosity at 40° C. within the above range.
- mineral oil and synthetic oil can be used singly or in combination.
- the rust preventive oil composition of the present embodiment contains the above components (A-1) and (A-2).
- A-2) It does not mean that the components are mixed, but the semi-finished product containing the components (A-1) and (A-2) contains the components (A-1) and (A-2) It also includes the case of mixing semi-finished products, which means that the components (A-1) and (A-2) are included as the constituent components of the rust preventive oil composition.
- component (A-2) has a kinematic viscosity at 40°C of 10.00 mm 2 /s or more and 60.00 mm 2 /s or less, considering the ease of adjusting the 40°C kinematic viscosity. It is preferable to contain at least one of base oil 1 and base oil 2 having a kinematic viscosity of 60.00 mm 2 /s or more and 800.00 mm 2 /s or less at 40 ° C. Both of these base oils 1 and 2 are included. You can stay.
- the component (A-2) may use base oil 1 and base oil 2 alone or in combination.
- the 40° C. kinematic viscosity of base oil 1 is preferably 10.00 mm 2 /s or more, more preferably 20.00 mm 2 /s or more, from the viewpoint of rust prevention, water displacement and water separation. It is preferably 25.00 mm 2 /s or more, more preferably 60.00 mm 2 /s or less, and 50.00 mm 2 /s from the viewpoint of improving the solubility of other components and coating performance. It is more preferably 40.00 mm 2 /s or less, more preferably 40.00 mm 2 /s or less.
- the 40° C. kinematic viscosity of the base oil 2 is preferably 60.00 mm 2 /s or more, more preferably 200.00 mm 2 / s or more, from the viewpoint of rust prevention, water displacement and water separation. It is preferably 400.00 mm 2 /s or more, more preferably 800.00 mm 2 /s or less, and 600.00 mm 2 /s from the viewpoint of improving the solubility of other components and coating performance. It is more preferably 500.00 mm 2 /s or less, more preferably 500.00 mm 2 /s or less.
- the content of the component (A-2) in the antirust oil composition is 0.1% by mass from the viewpoint of improving the permeability into metal materials and sufficiently forming a coating to improve the antirust properties. Above, it is preferably 30.0% by mass or less, more preferably 0.5% by mass or more and 25.0% by mass or less, and 0.8% by mass or more and 22.0% by mass or less. More preferred.
- the total content of the components (A-1) and (A-2) in the antirust oil composition is 60.0% by mass or more, 95.0% by mass or more, from the viewpoint of antirust properties, water displacement properties, and water separation properties. It is preferably 0% by mass or less, more preferably 70.0% by mass or more and 93.0% by mass or less, even more preferably 75.0% by mass or more and 90.0% by mass or less, More preferably, it is 79.0% by mass or more and 89.0% by mass or less.
- the content of component (A-2) with respect to the total amount of components (A-1) and (A-2) is 0.1% by mass or more, 30 0% by mass or less, more preferably 0.5% by mass or more and 25.0% by mass or less, and even more preferably 0.8% by mass or more and 20.0% by mass or less .
- the content of base oil 1 with respect to the total amount of component (A-2) can be appropriately selected from 0% by mass to 100% by mass, Base oil 1 may not be contained, but if base oil 1 is contained, it is preferably 30.0% by mass or more for improving water displacement and water separation properties, and 40.0% by mass or more. more preferably 45.0% by mass or more, and still more preferably substantially only base oil 1.
- mineral oil residual oil obtained by atmospheric distillation of paraffinic crude oil, intermediate crude oil, or naphthenic crude oil, or distillate oil obtained by vacuum distillation of atmospheric distillation residue oil, and these are commonly used.
- Refined oil obtained by refining according to the method for example, solvent refined oil, hydrogenated refined oil, deasphalted oil, dewaxed oil, clay treated oil, hydrorefined oil and the like.
- Mineral oil obtained by isomerizing wax (GTL wax (Gas To Liquids WAX)) produced by the Fischer-Tropsch process or the like is also included.
- Synthetic oils include poly- ⁇ -olefins, ⁇ -olefin copolymers, polybutenes, alkylbenzenes, polyol esters, dibasic acid esters, polyoxyalkylene glycols, polyoxyalkylene glycol esters, polyoxyalkylene glycol ethers, hindered esters. , silicone oil and the like.
- the content of the component (B) with respect to the total amount of the components (A-1), (A-2), (B) to (F) is 2.5 mass. % or more. It is more preferably 2.8% by mass or more from the viewpoint of improving water substitution and water separation properties as well as rust prevention, and 10.0% by mass or less from the viewpoint of improving compatibility with other components. It is preferably 8.0% by mass or less, and even more preferably 7.0% by mass or less.
- the antirust oil composition of the present embodiment is required to contain an alkylene glycol represented by the general formula (1) having an HLB of 6.70 or more.
- the alkylene glycol represented by the general formula (1) may be used singly or in combination of two or more.
- HLB Hydrophilic-Lipophilic Balance
- HLB Hydrophilic-Lipophilic Balance
- It is preferably 6.72 or more, more preferably 6.73 or more, from the viewpoint of improving rust prevention, water displacement, and water separation. It is preferably 9.00 or less, more preferably 8.50 or less, and even more preferably 8.20 or less, from the viewpoint of improving the rust prevention property by sufficiently forming a coating.
- R 1 in the general formula (1) is an alkyl group having 2 to 10 carbon atoms from the viewpoint of improving rust prevention, water substitution and water separation properties, and improving compatibility with other components.
- an alkyl group having 3 to 8 carbon atoms is more preferable, and an alkyl group having 4 to 6 carbon atoms is even more preferable.
- 9 -groups, iC 4 H 9 -groups or nC 6 H 13 -groups are even more preferred.
- R 2 in the general formula (1) is an alkyl group having 1 to 6 carbon atoms from the viewpoint of improving rust prevention, water substitution and water separation properties, and improving compatibility with other components.
- a CH 3 -group, a C 2 H 5 -group or an nC 3 H 7 -group is more preferred, and a CH 3 -group is even more preferred in terms of easy availability.
- m 1 and m 3 are each independently preferably an integer of 0 to 4 from the viewpoint of improving rust prevention, water substitution and water separation properties, and improving compatibility with other components.
- An integer of ⁇ 3 is more preferred, an integer of 0 to 2 is more preferred, and m 1 +m 3 is preferably an integer of 1 to 4, more preferably 1 or 2.
- the sum of m 1 , m 2 and m 3 is preferably 2 or more. The following is preferable, 3 or less is more preferable, and 2 is even more preferable.
- n 1 in the general formula (1) is preferably an integer of 1 to 4, from the viewpoint of improving rust prevention, water substitution and water separation properties, and improving compatibility with other components.
- An integer of 3 is more preferred.
- the product of m2 and n1 is preferably 0 or 1 from the viewpoint of improving rust prevention, water substitution and water separation properties, and improving compatibility with other components.
- n1 is 2 or more
- multiple m1s present in the molecule may be the same or different
- m2 may be the same or different
- m3 is , may be the same or different, but the same is more preferable in terms of easy procurement.
- the ratio [S C /S O ] of the number of carbon atoms (S C ) to the number of oxygen atoms (S O ) in the alkylene glycol represented by the general formula (1) is From the viewpoint of improving the separability, it is preferably less than 4, more preferably 3.9 or less, even more preferably 3.7 or less, 1.5 or more is preferable, 2.0 or more is more preferable, and 2.3 or more is still more preferable.
- the alkylene glycol represented by the general formula (1) is butyl glycol, isobutyl glycol, diethylene glycol monobutyl ether, diethylene glycol isobutyl ether, diethylene glycol monohexyl ether, triethylene glycol monobutyl ether or propylene glycol mono-n- Butyl ether is preferred, diethylene glycol monobutyl ether, diethylene glycol isobutyl ether or diethylene glycol monohexyl ether is more preferred, and diethylene glycol isobutyl ether or diethylene glycol monohexyl ether is even more preferred.
- the content of the component (B) in the rust preventive oil composition is more preferably 2.5% by mass or more from the viewpoint of improving the rust prevention property as well as the water replacement property and the water separation property. 7. It is more preferably 10.0% by mass or less, more preferably 8.0% by mass or less, from the viewpoint of improving compatibility with other components. It is more preferably 0% by mass or less.
- diethylene glycol monobutyl ether when used, it is preferably 2.5% by mass or more and 5.8% by mass or less, more preferably 3.5% by mass or more and 5.5% by mass or less.
- diethylene glycol isobutyl ether when used, it is preferably 2.5% by mass or more and 5.8% by mass or less, more preferably 3.5% by mass or more and 5.5% by mass or less. It is more preferably 5% by mass or more and 5.3% by mass or less, and when diethylene glycol monohexyl ether is used, it is preferably 2.0% by mass or more and 6.0% by mass or less, and 2.5% by mass or more. It is more preferably 3.0 mass % or more and 5.3 mass % or less, more preferably 3.0 mass % or more and 5.3 mass % or less.
- the antirust oil composition of the present embodiment is required to contain at least one (component (C)) selected from metal sulfonates, metal salicylates and metal phenates having a base number of 50 mgKOH/g or less. If the component (C) is not included, excellent antirust properties, water replacement properties and water separation properties cannot be obtained.
- Component (C) contains one or more compounds selected from alkali metal sulfonates, alkali metal phenates, alkali metal salicylates, alkaline earth metal sulfonates, alkaline earth metal phenates, and alkaline earth metal salicylates.
- Component (C) includes, among these, alkaline earth metal sulfonates, alkaline earth metal salicylates, and alkaline earth metals, from the viewpoint of improving rust prevention, water displacement, and water separation in combination with other components. It is preferably at least one selected from group metal phenates.
- Alkaline earth metal sulfonates include alkaline earth metal salts of alkylaromatic sulfonic acids obtained by sulfonating alkylaromatic compounds having a molecular weight of 300-1,500, preferably 400-700.
- magnesium salts, calcium salts and the like are mentioned, among which calcium salts are preferably used.
- Alkaline earth metal phenates include alkylphenols, alkylphenol sulfides, alkaline earth metal salts of Mannich reaction products of alkylphenols, particularly magnesium salts and calcium salts, with calcium salts being preferred.
- Alkaline earth metal salicylates include alkaline earth metal salts of alkylsalicylic acids, particularly magnesium salts, calcium salts, etc.
- the alkyl group constituting the alkaline earth metal detergent preferably has 4 to 30 carbon atoms, more preferably 6 to 18 carbon atoms, and may be linear or branched. They may also be primary, secondary or tertiary alkyl groups.
- Alkaline earth metal sulfonates, alkaline earth metal phenates and alkaline earth metal salicylates can be obtained by adding the aforementioned alkylaromatic sulfonic acids, alkylphenols, alkylphenolsulfides, Mannich reaction products of alkylphenols, alkylsalicylic acids, etc. from magnesium and calcium.
- Alkaline earth metal sulfonates, alkaline earth metal phenates and alkaline earth metal salicylates obtained by direct reaction with alkaline earth metal bases such as oxides and hydroxides of one or more selected alkaline earth metals are included. .
- the metal sulfonate, metal salicylate and metal phenate of component (C) have a base number of 50 mgKOH/g or less. If the base number exceeds 50 mgKOH/g, it is impossible to obtain excellent anticorrosive properties as well as water displacement and water separation properties due to the combination with other components.
- the base number of the metal sulfonate, metal salicylate and metal phenate of component (C) is preferably 40 mgKOH/g or less, more It is preferably 30 mgKOH/g or less, and the lower limit is not particularly limited, but it is usually greater than 0 mgKOH/g, preferably 1 mgKOH/g or more, and more preferably 3 mgKOH/g or more.
- Component (C) is classified into neutral metal sulfonates, neutral metal salicylates and neutral metal phenates, as can be seen from these base numbers.
- the base number is measured according to JIS K2501:2003 "Petroleum products and lubricating oils-neutralization number test method", "9. Potentiometric titration method (base number/perchloric acid method)".
- the component (C) at least one selected from the above metal sulfonates, metal salicylates and metal phenates may be used singly or in combination.
- the metal content in the component (C) in the rust preventive oil composition is preferably 1.0% by mass or more from the viewpoint of improving the rust prevention property as well as the water displacement property and the water separation property by combining with other components. , more preferably 1.5% by mass or more, more preferably 2.0% by mass or more, and the upper limit is preferably 10.0% by mass or less, more preferably 8.0% by mass or less, and still more preferably 5.0% by mass. % by mass or less.
- the content of the component (C) in terms of metal in the rust preventive oil composition is preferably 0.01 mass from the viewpoint of improving the rust preventive property as well as the water displacement property and the water separation property in combination with other components. % or more, more preferably 0.02% by mass or more, more preferably 0.03% by mass or more, and the upper limit is preferably 0.5% by mass or less, more preferably 0.3% by mass or less, further preferably 0 .1% by mass or less. From the same point of view, the content of component (C) in the rust preventive oil composition is preferably 0.1% by mass or more, more preferably 1.0% by mass or more, and still more preferably 1.2% by mass. % by mass or more, more preferably 1.5% by mass or more, and the upper limit is preferably 5.0% by mass or less, more preferably 4.0% by mass or less, and even more preferably 3.0% by mass or less.
- the content of the component (C) in the rust preventive oil composition is preferably 0.1% by mass or more, and preferably 0.2% by mass, from the viewpoint of improving the rust prevention property as well as the water displacement property and the water separation property.
- % or more more preferably 0.3 mass % or more, and from the viewpoint of improving compatibility with other components, it is preferably 10.0 mass % or less, and 5.0 mass % or more. It is more preferably 3.5% by mass or less, more preferably 3.5% by mass or less.
- the total content of the components (B) and (C) in the anticorrosive oil composition is 2.6% by mass or more, from the viewpoint of improving the antirust properties as well as the water displacement properties and water separation properties. It is preferably 0% by mass or less. In particular, from the viewpoint of improving water displaceability, it is more preferably 2.8% by mass or more, still more preferably 3.0% by mass or more, and even more preferably 3.5% by mass or more. From the viewpoint of improving compatibility with other components, it is more preferably 15.0% by mass or less, even more preferably 12.0% by mass or less, and more preferably 10.0% by mass or less. It is more preferably 9.5% by mass or less, particularly preferably 9.0% by mass or less, and most preferably 9.0% by mass or less.
- the antirust oil composition of the present embodiment is required to contain a wax (component (D)) having an acid value of 10 mgKOH/g or more.
- Component (D) may be used singly or in combination of two or more. If the component (D) is not included, excellent antirust properties, water replacement properties and water separation properties cannot be obtained.
- the wax used as component (D) is preferably oxidized wax. Examples of the oxidized wax include various waxes such as paraffin wax, microcrystalline wax, and petrolatum obtained in the refining of petroleum fractions, and oxidized waxes thereof. Oxidized wax obtained by oxidizing paraffin wax is preferable from the viewpoint of improving the water displacement property and water separation property.
- the acid value of oxidized wax is 10 mgKOH/g or more. If it is less than 10 mgKOH/g, it is impossible to obtain excellent antirust properties as well as water displacement and water separation properties.
- the acid value of the oxidized wax is preferably 12 mgKOH/g or more, and preferably 200 mgKOH/g or less as an upper limit, from the viewpoint of improving the rust prevention property as well as the water displacement property and the water separation property in combination with other components. It is more preferably 100 mgKOH/g or less, still more preferably 50 mgKOH/g or less.
- the acid value is measured according to JIS K2501:2003 "Petroleum products and lubricating oils-neutralization value test method", "7. Potentiometric titration method (acid value)".
- the melting point of the oxidized wax is preferably 25° C. or higher, more preferably 28° C. or higher, still more preferably 30° C. or higher, and the upper limit is preferably 80° C. or lower, more preferably 70° C. or lower, further preferably 60° C. or lower. be.
- the melting point of the oxidized wax is 30°C or higher, the rust prevention and low-temperature stability are improved, and when it is 80°C or lower, precipitation of the wax component can be further suppressed.
- the melting point of wax is measured according to JIS K0064:1992 "Measuring method for melting point and melting range of chemical products".
- the above oxidized waxes may be used singly or in combination.
- the content of component (D) in the antirust oil composition is preferably 0.1% by mass or more and 10.0% by mass or less. From the viewpoint of improving water substitution and water separation properties as well as rust prevention, the content is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, and 0.3% by mass or more. More preferably, from the viewpoint of improving compatibility with other components, it is preferably 10.0% by mass or less, more preferably 5.0% by mass or less, and 3.5% by mass or less. It is even more preferable to have
- the antirust oil composition of the present embodiment is required to contain at least one selected from metal sulfonates, metal salicylates and metal phenates (component (E)) having a base number of 100 mgKOH/g or more.
- the component (E) may be used singly or in combination of two or more.
- At least one selected from metal sulfonates, metal salicylates and metal phenates used as component (E) is a metal salt of the same various anions as the metal sulfonates, metal salicylates and metal phenates of component (C). If the component (E) is not included, excellent antirust properties, water replacement properties and water separation properties cannot be obtained. Moreover, low-temperature stability is improved by containing the (E) component.
- the component (E) is one or more compounds selected from alkali metal sulfonates, alkali metal phenates, alkali metal salicylates, alkaline earth metal sulfonates, alkaline earth metal phenates, and alkaline earth metal salicylates.
- component (E) includes alkaline earth metal sulfonates, alkaline earth metal salicylates and alkaline earths, from the viewpoint of improving rust prevention, water replacement and water separation properties in combination with other components. It is preferably at least one selected from group metal phenates.
- the components (C) and (E) are preferably at least one selected from alkaline earth metal sulfonates, alkaline earth metal salicylates and alkaline earth metal phenates.
- Alkaline earth metal sulfonates include alkaline earth metal salts of alkylaromatic sulfonic acids obtained by sulfonating alkylaromatic compounds having a molecular weight of 300-1,500, preferably 400-700.
- magnesium salts, calcium salts and the like are mentioned, among which calcium salts are preferably used.
- Alkaline earth metal phenates include alkylphenols, alkylphenol sulfides, alkaline earth metal salts of Mannich reaction products of alkylphenols, particularly magnesium salts and calcium salts, with calcium salts being preferred.
- Alkaline earth metal salicylates include alkaline earth metal salts of alkylsalicylic acids, particularly magnesium salts, calcium salts, etc.
- the alkyl group constituting the alkaline earth metal detergent preferably has 4 to 30 carbon atoms, more preferably 6 to 18 carbon atoms, and may be linear or branched. They may also be primary, secondary or tertiary alkyl groups.
- Alkaline earth metal sulfonates, alkaline earth metal phenates and alkaline earth metal salicylates can be obtained by adding the aforementioned alkylaromatic sulfonic acids, alkylphenols, alkylphenolsulfides, Mannich reaction products of alkylphenols, alkylsalicylic acids, etc. from magnesium and calcium.
- Alkaline earth metal sulfonates, alkaline earth metal phenates and alkaline earth metal salicylates obtained by direct reaction with alkaline earth metal bases such as oxides and hydroxides of one or more selected alkaline earth metals are included. .
- the (E) component metal sulfonates, metal salicylates and metal phenates are called overbased metal sulfonates, overbased metal salicylates and overbased metal phenates having a base number of 100 mgKOH/g or more. If the base number is less than 100 mgKOH/g, particularly excellent antirust properties cannot be obtained, and in combination with other components, excellent antirust properties as well as water displacement and water separation properties cannot be obtained.
- the upper limit is preferably 600 mgKOH/g or less, more preferably 550 mgKOH/g or less, even more preferably 525 mgKOH/g or less, still more preferably 509 mgKOH/g or less.
- the metal sulfonate, metal salicylate and metal phenate may be used singly or in combination.
- the metal content in the metal sulfonate, metal salicylate, and metal phenate of component (E) mainly improves rust prevention, and when combined with other components, improves rust prevention, water displacement, and water separation. From the viewpoint, it is preferably 5.0% by mass or more, more preferably 10.0% by mass or more, still more preferably 15.0% by mass or more, and the upper limit is preferably 30.0% by mass or less, more preferably 25.0% by mass. It is 0% by mass or less, more preferably 20.0% by mass or less.
- the content of component (E) in the antirust oil composition is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, and still more preferably 0.7% by mass. % by mass or more, and the upper limit is preferably 10.0% by mass or less, more preferably 5.0% by mass or less, even more preferably 3.5% by mass or less, and even more preferably 2.3% by mass or less.
- components (A-1), (A-2), and (B) to (F) are components that tend to react with each other to produce reaction products. Even if the reaction product is produced, it does not affect the rust prevention, water displacement and water separation properties, and the above content is particularly effective in improving the rust prevention.
- the antirust oil composition of the present embodiment is required to contain a polyhydric alcohol full ester (component (F)).
- Component (F) may be used singly or in combination of two or more. If the component (F) is not included, excellent antirust properties, water replacement properties and water separation properties cannot be obtained.
- the polyhydric alcohol full ester used as component (F) is an ester in which all the hydroxyl groups in the polyhydric alcohol are esterified and no hydroxyl groups remain in the molecule. If the component (F) is not included, excellent antirust properties, water replacement properties and water separation properties cannot be obtained.
- As the polyhydric alcohol in the full ester of polyhydric alcohol trimethylolpropane, pentaerythritol, and sorbitan are preferred from the viewpoint of improving rust prevention, water substitution and water separation properties in combination with other components. , and pentaerythritol are more preferred.
- the polyhydric alcohols used in the full ester may be used singly or in combination.
- the full ester of polyhydric alcohol from the viewpoint of improving rust prevention, water substitution and water separation properties by combining with other components, more specifically, the above polyhydric alcohol That is, full esters of polyhydric alcohols such as trimethylolpropane, pentaerythritol and sorbitan with fatty acids having 8 to 24 carbon atoms are preferred.
- the fatty acid is preferably a monocarboxylic acid, and may be saturated or unsaturated, and may be linear or branched.
- the number of carbon atoms in the fatty acid is more preferably 10 or more, more preferably 12 or more, and the upper limit is more preferably 20 or less, still more preferably 18 or less.
- fatty acids examples include caprylic acid, 2-ethylhexanoic acid, pelargonic acid, isononanoic acid, capric acid, isodecanoic acid, undecanoic acid, lauric acid, isolauric acid, tridecylic acid, myristic acid, isomyristic acid, pentadecanoic acid, and palmitic acid.
- oleic acid is preferable from the viewpoint of improving rust prevention properties as well as water displacement properties and water separation properties in combination with other components.
- Fatty acids may be used singly or in combination.
- the full ester of the component (F) inevitably contains a partial ester of a polyhydric alcohol due to partial hydrolysis, but the content of the component (F) in the sum of the component (F) and the partial ester of the polyhydric alcohol
- the amount is preferably 80% by mass or more, more preferably 85% by mass or more, and even more preferably 90% by mass or more.
- the content of the component (F) in the antirust oil composition is preferably 1.00% by mass or more, more preferably 1.50% by mass, from the viewpoint of improving the antirust properties, water displacement properties, and water separation properties. % or more, more preferably 2.00% by mass or more, still more preferably 2.50% by mass or more, and the upper limit is preferably 10.00% by mass or less, more preferably 8.00% by mass or less, and further Preferably, it is 7.00% by mass or less.
- the above (E) component and (F) component have complementary specifications.
- the component (E) is excellent in rust prevention properties, and the use of the component (F) together with the component (E) can further improve the water displacement property and the water separation property.
- the mass ratio ([(E)/(F)]) of the component (E) and the component (F) is preferably 0.01 or more, more preferably 0.10 or more, and still more preferably is 0.13 or more, and the upper limit is preferably 1.00 or less, more preferably 0.80 or less, still more preferably 0.50 or less, and even more preferably 0.40 or less.
- the (A-2) component, (D) component, (E) component and (F) component have a particularly large effect of improving rust prevention.
- the total content of the components (A-2), (D), (E) and (F) in the rust preventive oil composition is preferably 5. 00% by mass or more, more preferably 8.00% by mass or more, still more preferably 13.0% by mass or more, still more preferably 17.0% by mass or more, and the upper limit is preferably 50.0% by mass or less , more preferably 40.00% by mass or less, still more preferably 30.00% by mass or less, and even more preferably 28.0% by mass or less.
- the components (A-1), (A-2), (B) to (F) are contained, of course, in the mode in which each of these components is present.
- embodiments containing reaction products in which some of these components have reacted with each other are also included.
- the content of the component that contributed to the reaction product is the sum of the amount present in the composition without reaction and the amount that contributed to the reaction product.
- the total content of the components (A-1), (A-2), (B) to (F) with respect to the rust preventive oil composition is contradictory to rust prevention, water displacement and water separation. From the viewpoint of achieving a high level of performance, the content is preferably 90.0% by mass or more, more preferably 93.0% by mass or more, and even more preferably 95.0% by mass or more.
- the upper limit is not particularly limited, and may be substantially 100% by mass except for compounds that are unavoidably mixed.
- the rust preventive oil composition of the present embodiment contains the components (A-1), (A-2), (B) to (F), and these (A-1), (A-2 ), (B) to (F) components only, or in addition to these (A-1), (A-2), (B) to (F) components, other components may contain. Specific examples of other components include the following additives.
- components include, for example, basic metal sulfonates, basic metal salicylates, basic metal phenates, antioxidants, thickeners, metal corrosion inhibitors, pour point depressants, and the like.
- basic metal sulfonates, basic metal salicylates, and basic metal phenates include compounds in which the component (C) has a base number of more than 50 mgKOH/g and less than 100 mgKOH/g.
- Antioxidants include phenolic antioxidants such as 2,6-di-t-butylphenol and 2,6-di-t-butyl-p-cresol, and amine-based antioxidants such as alkylated diphenylamine and phenyl- ⁇ -naphthylamine. Antioxidants are included.
- metal corrosion inhibitors examples include benzotriazole-based compounds, tolyltriazole-based compounds, imidazole-based compounds, and pyrimidine-based compounds.
- pour point depressants include ethylene-vinyl acetate copolymers, condensates of chlorinated paraffin and naphthalene, condensates of chlorinated paraffin and phenol, and polymers such as polymethacrylate and polyalkylstyrene.
- Thickeners include, for example, esters (pentaerythritol, trimethylolpropane full esters, partial esters), polybutenes, polypropylene/polyethylene block or random polymers.
- the total content of other components in the antirust oil composition is preferably 20.0% by mass or less, more preferably 0.1 to 10.0% by mass, and still more preferably 0.3 to 5.0% by mass. be. That is, the total content of components (A-1), (A-2), (B) to (F) in the rust preventive oil composition is preferably 80.0% by mass or more, more preferably 90.0% by mass. It is at least 95.0% by mass, more preferably at least 95.0% by mass, and the upper limit is preferably at most 99.9% by mass, more preferably at most 99.7% by mass.
- the 40° C. kinematic viscosity of the rust preventive oil composition of the present embodiment is preferably 1.0 mm 2 /s or more, more preferably 1.3 mm 2 /s or more, still more preferably 1.5 mm 2 /s or more,
- the upper limit is preferably 35 mm 2 /s or less, more preferably 20.0 mm 2 /s or less, even more preferably 10.0 mm 2 /s or less, and even more preferably 5.0 mm 2 /s or less.
- the flash point of the antirust oil composition of the present embodiment is preferably 50°C or higher, more preferably 55°C or higher, still more preferably 60°C or higher, and the upper limit is preferably 300°C or lower, more preferably 250°C. °C or less, more preferably 200°C or less.
- the flash point is within the above range, the handling becomes easier, and the anti-corrosion properties as well as the water replacement properties and water separation properties tend to be improved.
- flash point is a value measured according to the method described in JIS K2265:2007.
- the water removability of the antirust oil composition of the present embodiment is preferably 5 seconds or less, more preferably 3 seconds or less, and even more preferably 2 seconds or less.
- the water removability is a value measured by the method described in Examples.
- the water separability of the rust preventive oil composition of the present embodiment is preferably 10 seconds or less, more preferably 9 seconds or less, and even more preferably 8 seconds or less.
- the water separability is a value measured by the method described in Examples.
- the antirust oil composition of the present embodiment is used by applying it to the surface of a metal material.
- the antirust oil composition of the present embodiment forms a coating on the surface of the metal material, and the formation of the coating can prevent the generation of rust or the like on the surface of the metal material.
- the rust preventive oil composition of the present embodiment is suitably used for processing and manufacturing metal materials.
- the application may be performed by immersing the metal material in the rust preventive oil composition, or by spraying the rust preventive oil composition onto the metal material, or by various other coating methods, and may be performed by immersion. Easy and preferred.
- the metal material can be processed using a water-based working liquid, or washed with an alkaline cleaning liquid or the like, and then the rust preventive oil composition can be applied to the surface of the metal material.
- the metal for which the antirust oil composition is used is preferably a metal containing iron such as pure iron, steel, cast steel, alloy steel, carbon steel, pig iron, cast iron, etc. It is also possible to use it for other metals. .
- the rust-preventing oil composition of the present embodiment can be used without any particular limitation as long as it is used for purposes requiring rust prevention.
- a rust preventive oil composition When a rust preventive oil composition is used, it may be diluted with a polyvalent hydrogen solvent such as an aliphatic hydrocarbon solvent or an aromatic hydrocarbon solvent.
- a polyvalent hydrogen solvent such as an aliphatic hydrocarbon solvent or an aromatic hydrocarbon solvent.
- the content of the rust preventive oil composition in the rust preventive oil composition diluent may be appropriately adjusted as desired, and is not particularly limited. In consideration of handleability, the content should normally be 0.5% by mass or more and about 10.0% by mass.
- the 40° C. kinematic viscosity of the diluted antirust oil composition is preferably 1.0 mm 2 /s or more, more preferably 1.2 mm 2 /s or more, and even more preferably 1.2 mm 2 /s or more. is 1.5 mm 2 /s or more, and the upper limit is preferably 5.0 mm 2 /s or less, more preferably 4.5 mm 2 /s or less, and even more preferably 3.0
- Component (A-1) 40° C. kinematic viscosity of 6.00 mm 2 /s or less; Solvent (A-2) Component: 40° C. kinematic viscosity of greater than 6.00 mm 2 /s; ) Component: HLB is 6.70 or more, alkylene glycol represented by the general formula (1)
- R 1 and R 2 each independently represent an alkyl group having 1 to 10 carbon atoms
- m 1 and m 3 each independently represent an integer of 0 to 10
- m 2 is 0 or 1
- n 1 represents an integer of 1 to 10
- the sum of m 1 , m 2 and m 3 is 1 or more
- the product of m 2 and n 1 is 0 or 1.
- Component (C) At least one selected from metal sulfonates, metal salicylates and metal phenates having a base value of 50 mgKOH/g or less
- component full ester of polyhydric alcohol
- component (A-1), (A-2), (B) to (F), their blending amounts, other components and their blending amounts, and other details are as described in the present embodiment. Since the contents are the same as those described for the antirust oil composition, the description thereof is omitted.
- the order of blending is not particularly limited.
- component (A-1) may be blended with components (A-2) and (B) to (F) sequentially, or (B) to (F).
- a pre-mixed component may be added.
- the (D) component and the (E) component may react with each other, the (D) component and the (E) component may be mixed in advance and then blended with the (A) component.
- the measuring method and evaluation method in the present invention are as follows.
- Kinematic viscosity Kinematic viscosity was measured using a glass capillary viscometer according to JIS K2283:2000.
- Base number The base number was measured according to JIS K2501:2003 "Petroleum products and lubricating oils-neutralization number test method", "8. Potentiometric titration method (base number/hydrochloric acid method)”.
- Acid value The acid value was measured according to JIS K2501:2003 “Petroleum products and lubricating oils-neutralization value test method”, “7. Potentiometric titration method (acid value)”.
- Water removal GA material 1 (galvanized steel sheet, JAC270D, 60 mm ⁇ 80 mm, thickness 1 mm) is immersed in ion-exchanged water 6 in a cylinder 5, gently pulled up, and then a water layer 2 is formed on the surface. It was confirmed that Immediately, the GA material 3 with the water layer formed therein was completely immersed in a 100 mL (milliliter) cylinder 5 containing 80 mL of the rust preventive oil composition 7 of Example or Comparative Example (Fig. 1). After the immersion, the time until the water layer of the GA material was completely removed was measured. The measured time was judged as follows.
- Examples 1 to 53, Comparative Examples 1 to 15 Using the compounds described in Table 1, the rust preventive compositions of Examples 1 to 53 and Comparative Examples 1 to 15 were prepared according to the formulations described in Tables 2 to 13. 2) The components (B) to (F) were successively blended to prepare a rust preventive oil composition. The rust preventive properties, water displacement properties and water separation properties of the obtained rust preventive oil compositions were evaluated by the methods described above. Descriptions in the tables shown below are explained.
- the numerical value described for each component in the table is the content (% by mass), which is the content of each component with respect to the rust preventive oil composition (100% by mass).
- m1+m3, m2, n1, and m2 ⁇ n1 regarding the (B) component in Table 1 correspond to the symbols in general formula (1).
- (A-1) to (F) are (A-1) component, (A-2) component, (B) component, (C) component, and (D) relative to the rust preventive oil composition (100% by mass) It means the total content of component, (E) component and (F) component.
- (A-1)+(A-2) means the total content of components (A-1) and (A-2) with respect to the rust preventive oil composition (100% by mass).
- (B)+(C) means the total content of components (B) and (C) relative to the rust preventive oil composition (100% by mass).
- (E)/(F) means the mass ratio of the (E) component and the (F) component.
- (A-2) + (D) + (E) + (F) are (A-2) component, (D) component, (E) component and (F ) means the total content of the ingredients.
- the 40°C kinematic viscosity is the kinematic viscosity of each antirust oil composition at 40°C.
- Examples 1 to 7 and Comparative Examples 1 to 3 shown in Table 2 are antirust oil compositions in which the component (B) is replaced.
- the rust preventive oil compositions of Comparative Examples 1 and 2 using (B-3) and (B-7) having an HLB of less than 6.7, and (B-10) having a product of m 2 and n 1 of 2
- the rust preventive oil composition of Comparative Example 3 used was inferior in water separability to the rust oil compositions of Examples.
- Components (A-2) and (B) to (F) were replaced with component (A-1) from the rust preventive oil composition of Example 3, and Comparative Examples 4 to 9 were prepared in order to confirm the effect of each component. did.
- the results are shown in Table 3. If the components (A-2) and (D) to (F) are not included, the rust prevention is inferior to that of the compositions of the examples, and if the components (B) and (C) are not included, the water displaceability and water separation properties are inferior to those of the compositions of Examples, and by including all the components of the present invention, it is possible to improve rust prevention properties, water displacement properties, and water separation properties. I was able to confirm that.
- Rust preventive oil compositions of Examples 8 and 9 and Comparative Examples 10 and 11 were prepared by changing the content of the component (B) from the rust preventive oil composition of Example 3. The results are shown in Table 4. It was confirmed that when the component (B) content was 2% by mass or less (Comparative Examples 10 and 11), the water displacement property and water separation property deteriorated. As shown in Tables 5 and 6, with respect to Example 4 (Table 5) and Example 5 (Table 6), the rust preventive oil compositions of Examples and Comparative Examples in which the content of component (B) was varied were used. prepared. From these results, it was confirmed that, irrespective of the compound used as component (B), when component (B) is 2% by mass or less, water replacement and water separation properties deteriorate.
- Rust preventive oil compositions of Examples 14 to 18 were prepared by changing the contents of components (C) and (D) from the rust preventive oil composition of Example 3. The results are shown in Table 7. It was confirmed that even if the contents of components (C) and (D) were changed, a rust preventive oil composition with good rust preventive properties, water replacement properties and water separation properties could be obtained.
- Rust preventive oil compositions of Examples 19 to 25 were prepared by changing the (B) and (D) components and their contents. The results are shown in Table 8. It was confirmed that even if the components (B) and (D) and their contents were changed, a rust preventive oil composition with good rust preventive properties, water replacement properties and water separation properties could be obtained.
- the rust preventive oil compositions of Examples 26 to 29 were prepared by changing the (E) component and its content. The results are shown in Table 9. It was confirmed that even if the component (E) and its content were changed, a rust-preventive oil composition with good rust-preventive properties, water-displacing properties, and water-separating properties could be obtained.
- the rust preventive oil compositions of Examples 30 to 37 were prepared by changing the (E) component and its content. The results are shown in Table 10. It was confirmed that even if the component (E) and its content were changed, a rust-preventive oil composition with good rust-preventive properties, water-displacing properties, and water-separating properties could be obtained.
- the rust preventive oil compositions of Examples 38 and 39 were prepared by varying the content of the component (F). The results are shown in Table 11. It was confirmed that even if the content of the component (F) was changed, a rust preventive oil composition with good rust preventive properties, water replacement properties and water separation properties could be obtained.
- Rust preventive oil compositions of Examples 40 to 46 were prepared by changing the base oil used as (A-2) and its content from the rust preventive oil composition of Example 5. The results are shown in Table 12. It was confirmed that even if the component (A-2) and its content were changed, a rust-preventive oil composition with good rust-preventing properties, water-displacing properties and water-separating properties could be obtained.
- Rust preventive oil compositions of Examples 47 to 53 were prepared by changing the base oil used as (A-1) and its content. The results are shown in Table 13. It was confirmed that even if the component (A-1) and its content were changed, a rust-preventive oil composition with good rust-preventing properties, water-displacing properties and water-separating properties could be obtained.
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Abstract
Description
防錆油は、金属材料が各種加工され、または洗浄等された後に、金属材料表面に被膜させることがある。加工油、洗浄液などが水系のものである場合、加工油、洗浄液が原因となって錆が発生するのを防止するために、防錆油は、加工油や洗浄液を金属表面から除去した上で金属表面に被膜させる必要がある。
例えば特許文献1に開示されている水置換剤では、十分な防錆性が得られなかった。また、特許文献2に開示される防錆油組成物でも、脂肪酸アミン塩が水置換剤の働きをすると考えられ、水置換剤と防錆剤の両方が配合されるが、暴露環境下における防錆性を十分に高めることは難しい。
本発明は、以上の事情に鑑みてなされたものであり、本発明の課題は、防錆性、水置換性及び水分離性を良好にすることが可能な防錆油組成物及びその製造方法を提供することである。
下記(A-1)、(A-2)、(B)~(F)成分を含有し、前記(A-1)、(A-2)、(B)~(F)成分の合計量に対する前記(B)成分の含有量が、2.5質量%以上である、防錆油組成物。
(A-1)成分:40℃動粘度が、6.00mm2/s以下である、溶剤
(A-2)成分:40℃動粘度が、6.00mm2/sより大きい、基油
(B)成分:HLBが、6.70以上である、一般式(1)で表されるアルキレングリコール
(式中、R1及びR2はそれぞれ独立して、炭素原子数1~10のアルキル基を表し、m1及びm3はそれぞれ独立して0~10の整数を表し、m2は0又は1を表し、n1は1~10の整数を表し、m1、m2及びm3の和は1以上であり、m2とn1の積は0又は1である。
(C)成分:塩基価50mgKOH/g以下である、金属スルフォネート、金属サリチレート及び金属フェネートから選ばれる少なくとも1種
(D)成分:酸価10mgKOH/g以上である、ワックス
(E)成分:塩基価100mgKOH/g以上である、金属スルフォネート、金属サリチレート及び金属フェネートから選ばれる少なくとも1種
(F)成分:多価アルコールのフルエステル
前記防錆油組成物に対する前記(A-1)、(A-2)、(B)~(F)成分の合計の含有量が、90.0質量%以上ある、[1]に記載の防錆油組成物。
[3]
前記防錆油組成物に対する前記(A-2)成分の含有量が、0.1質量%以上、30.0質量%以下である、[1]又は[2]に記載の防錆油組成物。
前記防錆油組成物に対する前記(A-1)成分及び(A-2)成分の合計の含有量が、60.0質量%以上、95.0質量%以下である、[1]~[3]のいずれか1に記載の防錆油組成物。
[5]
前記防錆油組成物に対する前記(B)成分の含有量が、10.0質量%以下である、[1]~[4]のいずれか1に記載の防錆油組成物。
(C)成分及び(E)成分が、アルカリ土類金属スルフォネート、アルカリ土類金属サリチレート及びアルカリ土類金属フェネートから選ばれる少なくとも1種である、[1]~[5]のいずれか1に記載の防錆油組成物。
[7]
前記防錆油組成物に対する前記(C)成分の含有量が、0.1質量%以上、10.0質量%以下である、[1]~[6]のいずれか1に記載の防錆油組成物。
前記防錆油組成物に対する前記(D)成分の含有量が、0.1質量%以上、10.0質量%以下である、[1]~[7]のいずれか1に記載の防錆油組成物。
[9]
前記防錆油組成物に対する前記(E)成分の含有量が、0.1質量%以上、10.0質量%以下である、[1]~[8]のいずれか1に記載の防錆油組成物。
前記防錆油組成物に対する前記(F)成分の含有量が、1.0質量%以上、10.0質量%以下である、[1]~[9]のいずれか1に記載の防錆油組成物。
[11]
前記(A-1)成分の40℃動粘度が、0.5mm2/s以上である、[1]~[10]のいずれか1に記載の防錆油組成物。
前記(A-2)成分の40℃動粘度が、800mm2/s以下である、[1]~[11]のいずれか1に記載の防錆油組成物。
[13]
前記一般式(1)で表されるアルキレングリコール中の炭素原子の数(SC)と酸素原子の数(SO)の比[SC/SO]が、4未満である、[1]~[12]のいずれか1に記載の防錆油組成物。
前記(D)成分が、パラフィンワックスを酸化した酸化ワックスである、[1]~[13]のいずれか1に記載の防錆油組成物。
[15]
前記(F)成分が、トリメチロールプロパン、ペンタエリスリトール又はソルビタンから選ばれる多価アルコールと、炭素原子数8以上24以下の脂肪酸とのフルエステルである、[1]~[14]のいずれか1に記載の防錆油組成物。
前記防錆油組成物に対する前記(B)成分及び(C)成分の合計の含有量が、2.6質量%以上、20.0質量%以下である、[1]~[15]のいずれか1に記載の防錆油組成物。
[17]
前記(E)成分と(F)成分との質量割合([(E)/(F)])が、0.01以上、1.00以下である[1]~[16]のいずれか1に記載の防錆油組成物。
前記防錆油組成物に対する前記(A-2)成分、(D)成分、(E)成分及び(F)成分の合計の含有量が、5.0質量%以上、50.0質量%以下である、[1]~[17]のいずれか1に記載の防錆油組成物。
[19]
40℃動粘度が、1.0mm2/s以上、35mm2/s以下である[1]~[18]のいずれか1に記載の防錆油組成物。
下記(A-1)、(A-2)、(B)~(F)成分を、前記(A-1)、(A-2)、(B)~(F)成分の合計量に対する前記(B)成分の含有量が、2.5質量%以上となるように混合する、防錆油組成物の製造方法。
(A-1)成分:40℃動粘度が、6.00mm2/s以下である、溶剤
(A-2)成分:40℃動粘度が、6.00mm2/sより大きい、基油
(B)成分:HLBが、6.70以上である、一般式(1)で表されるアルキレングリコール
(式中、R1及びR2はそれぞれ独立して、炭素原子数1~10のアルキル基を表し、m1及びm3はそれぞれ独立して0~10の整数を表し、m2は0又は1を表し、n1は1~10の整数を表し、m1、m2及びm3の和は1以上であり、m2とn1の積は0又は1である。
(C)成分:塩基価50mgKOH/g以下である、金属スルフォネート、金属サリチレート及び金属フェネートから選ばれる少なくとも1種
(D)成分:酸価10mgKOH/g以上である、ワックス
(E)成分:塩基価100mgKOH/g以上である、金属スルフォネート、金属サリチレート及び金属フェネートから選ばれる少なくとも1種
(F)成分:多価アルコールのフルエステル
本実施形態の防錆油組成物は、下記(A-1)、(A-2)、(B)~(F)成分を含有し、前記(A-1)、(A-2)、(B)~(F)成分の合計量に対する前記(B)成分の含有量が、2.5質量%以上である、防錆油組成物であることを要する。
(A-2)成分:40℃動粘度が、6.00mm2/sより大きい、基油
(B)成分:HLBが、6.70以上である、一般式(1)で表されるアルキレングリコール
(D)成分:酸価10mgKOH/g以上である、ワックス
(E)成分:塩基価100mgKOH/g以上である、金属スルフォネート、金属サリチレート及び金属フェネートから選ばれる少なくとも1種
(F)成分:多価アルコールのフルエステル
既述のように、防錆性、水置換性及び水分離性等の防錆油組成物に求められる性能は、各成分の金属材料の表面への吸着の程度に応じて発現する性能であり、これらの成分が互いに金属材料の表面への吸着を阻害しあい、競争吸着を生じる場合も想定される。所望の性能を得るために異なる成分を添加しても、所望の各々の性能が得られない場合があるため、所望の性能に対する添加剤の組み合わせは極めて困難であるところ、本実施形態の防錆油組成物は上記成分を組み合わせ、かつ特定の成分を特定の含有量で含有させることにより、防錆性、水置換性及び水分離性という、相反する性能を高い水準で達成することを可能とした。
以下、本実施形態の防錆油組成物を構成する各成分について説明する。
本実施形態の防錆油組成物は、40℃動粘度が6.00mm2/s以下の溶剤を含有することを要する。
40℃動粘度は、防錆性、水置換性及び水分離性の観点から4.00mm2/s以下であることが好ましく、(A-1)成分は、塗布後にその一部又は全量が揮発することも好ましく、良好な揮発性を発揮する観点からは、3.00mm2/s以下であることがより好ましく、2.00mm2/s以下であることが更に好ましい。下限値としては特に制限はないが、他の成分の溶解性及び塗布性能の向上の観点からは0.50mm2/s以上であることが好ましく、0.70mm2/s以上であることがより好ましく、1.00mm2/s以上であることが更に好ましい。
本実施形態の溶剤とは、他の成分を溶解するために用いる物質を意味し、液体であっても固体であってもよく、固体は半固体も含有するが、40℃動粘度が上記範囲内のものであれば特に制限なく使用することが可能であり、有機溶剤、鉱油、合成油等を用いることが可能であり、防錆性、水置換性及び水分離性の観点から、有機溶剤、鉱油又は合成油が好ましく、有機溶剤又は鉱油がより好ましい。
本実施形態においては、有機溶剤、鉱油、合成油を単独で、又は複数種を混合して用いることが可能である。
また、合成油としては、ポリ-α-オレフィン、α-オレフィンコポリマー、ポリブテン、アルキルベンゼン、ポリオールエステル、二塩基酸エステル、ポリオキシアルキレングリコール、ポリオキシアルキレングリコールエステル、ポリオキシアルキレングリコールエーテル、ヒンダードエステル、シリコーンオイル等が挙げられる。
有機溶剤は、他の物質を溶解する常温で液体の有機化合物である。本実施形態において有機溶剤には、炭素数8~30の脂肪族炭化水素が含まれ、炭素数8~30のイソパラフィン系溶媒が、より好ましい。
前記防錆油組成物に対する(A-1)成分の含有量は、防錆性、水置換性及び水分離性の観点から、40.0質量%以上、95.0質量%以下であることが好ましく、50.0質量%以上、90.0質量%以下であることがより好ましく、60.0質量%以上、85.0質量%以下であることが更に好ましい。
本実施形態の防錆油組成物は、40℃動粘度が6.00mm2/sより大きい基油を含有することを要する。
本実施形態の防錆油組成物は、40℃動粘度の異なる(A-1)成分及び(A-2)成分を含有することを要するが、これにより防錆油組成物の防錆性、水置換性及び水分離性を良好にすることができる。
40℃動粘度は、防錆性、水置換性及び水分離性の観点から10.00mm2/s以上であることが好ましく、20.00mm2/s以上であることがより好ましく、25.00mm2/s以上であることが更に好ましく、他の成分の溶解性及び塗布性能の向上の観点からは800.00mm2/s以下であることが好ましく、600.00mm2/s以下であることがより好ましく、500.00mm2/s以下であることが更に好ましい。
本実施形態においては、鉱油、合成油を単独で、又は複数種を混合して用いることが可能である。
基油1の40℃動粘度としては、防錆性、水置換性及び水分離性の観点から10.00mm2/s以上であることが好ましく、20.00mm2/s以上であることがより好ましく、25.00mm2/s以上であることが更に好ましく、他の成分の溶解性及び塗布性能の向上の観点からは60.00mm2/s以下であることが好ましく、50.00mm2/s以下であることがより好ましく、40.00mm2/s以下であることが更に好ましい。
基油1を含まなくともよいが、基油1を含む場合には、水置換性及び水分離性の改善のため、30.0質量%以上であることが好ましく、40.0質量%以上であることがより好ましく、45.0質量%以上であることが更に好ましく、実質的に基油1のみであることがより更に好ましい。
また、合成油としては、ポリ-α-オレフィン、α-オレフィンコポリマー、ポリブテン、アルキルベンゼン、ポリオールエステル、二塩基酸エステル、ポリオキシアルキレングリコール、ポリオキシアルキレングリコールエステル、ポリオキシアルキレングリコールエーテル、ヒンダードエステル、シリコーンオイル等が挙げられる。
本実施形態の防錆油組成物は、前記(A-1)、(A-2)、(B)~(F)成分の合計量に対する前記(B)成分の含有量が、2.5質量%以上であることを要する。防錆性とともに水置換性及び水分離性を向上させる観点から、2.8質量%以上であることがより好ましく、他の成分との相溶性を向上させる観点から、10.0質量%以下であることが好ましく、8.0質量%以下であることがより好ましく、7.0質量%以下であることが更に好ましい。
HLB(Hydrophilic-Lipophilic Balance)は、界面活性剤の水と油への親和性の程度を表す値であり、本願のHLBは、表面技術 Vol.50 No12,1999 p87-91に記載の方法で求めた。
防錆性、水置換性及び水分離性を良好にする観点から、6.72以上が好ましく、6.73以上がより好ましく、上限値には特に制限はないが、金属材料への浸透性を向上させて、被膜を十分に形成して防錆性を向上させる観点から、9.00以下が好ましく、8.50以下がより好ましく、8.20以下が更に好ましい。
m1及びm3は、防錆性、水置換性及び水分離性を良好にする観点、他の成分との相溶性を向上させる観点から、それぞれ独立して0~4の整数が好ましく、0~3の整数がより好ましく、0~2の整数が更に好ましく、m1+m3は1~4の整数が好ましく、1又は2がより好ましい。
m1、m2及びm3の和は2以上であることが好ましく、防錆性、水置換性及び水分離性を良好にする観点、他の成分との相溶性を向上させる観点から、4以下が好ましく、3以下がより好ましく、2であることが更に好ましい。
m2とn1の積は、防錆性、水置換性及び水分離性を良好にする観点、他の成分との相溶性を向上させる観点から、0又は1が好ましい。
一般式(1)で表されるアルキレングリコール中の炭素原子の数(SC)と酸素原子の数(SO)の比[SC/SO]は、防錆性、水置換性及び水分離性を良好にする観点から、4未満であることが好ましく、3.9以下であることがより好ましく、3.7以下であることが更に好ましく、
1.5以上が好ましく、2.0以上がより好ましく、2.3以上が更に好ましい。
本実施形態の防錆油組成物は、塩基価50mgKOH/g以下である、金属スルフォネート、金属サリチレート及び金属フェネートから選ばれる少なくとも1種((C)成分)を含有することを要する。(C)成分を含まないと、優れた防錆性、水置換性及び水分離性が得られない。
(C)成分は、アルカリ金属スルフォネート、アルカリ金属フェネート、アルカリ金属サリチレート、アルカリ土類金属スルフォネート、アルカリ土類金属フェネート、及びアルカリ土類金属サリチレートから選ばれる1種以上の化合物が含まれる。(C)成分としては、これらのなかでも、他の成分との組み合わせにより防錆性とともに水置換性及び水分離性を向上させる観点から、アルカリ土類金属スルフォネート、アルカリ土類金属サリチレート及びアルカリ土類金属フェネートから選ばれる少なくとも1種であることが好ましい。
アルカリ土類金属フェネートとしては、アルキルフェノール、アルキルフェノールサルファイド、アルキルフェノールのマンニッヒ反応物のアルカリ土類金属塩、特に、マグネシウム塩、カルシウム塩等が挙げられ、中でもカルシウム塩が好ましく用いられる。
アルカリ土類金属サリシレートとしては、アルキルサリチル酸のアルカリ土類金属塩、特に、マグネシウム塩、カルシウム塩等が挙げられ、中でもカルシウム塩が好ましく用いられる。
アルカリ土類金属系清浄剤を構成するアルキル基としては、炭素数4~30のものが好ましく、より好ましくは6~18のアルキル基であり、これらは直鎖状でも分枝状でもよい。これらはまた1級アルキル基、2級アルキル基または3級アルキル基でもよい。
(C)成分の金属スルフォネート、金属サリチレート及び金属フェネートの塩基価は、他の成分との組み合わせにより防錆性とともに水置換性及び水分離性を向上させる観点から、好ましくは40mgKOH/g以下、より好ましくは30mgKOH/g以下であり、下限としては特に制限はないが、通常0mgKOH/gより大きければよく、1mgKOH/g以上であることが好ましく、3mgKOH/g以上であることがより好ましい。(C)成分は、これらの塩基価から分かるように、中性金属スルフォネート、中性金属サリチレート及び中性金属フェネートに分類されるものである。
本実施形態において、(C)成分としては、上記の金属スルフォネート、金属サリチレート及び金属フェネートから選ばれる少なくとも1種を単独で、又は複数種を組み合わせて用いてもよい。
また、これと同様の観点から、前記防錆油組成物に対する(C)成分の含有量は、好ましくは0.1質量%以上、より好ましくは1.0質量%以上、更に好ましくは1.2質量%以上、より更に好ましくは1.5質量%以上であり、上限として好ましくは5.0質量%以下、より好ましくは4.0質量%以下、更に好ましくは3.0質量%以下である。
本実施形態の防錆油組成物は、酸価10mgKOH/g以上のワックス((D)成分)を含有することを要する。(D)成分は、1種又は2種以上を組み合わせて使用してもよい。
(D)成分を含まないと、優れた防錆性、水置換性及び水分離性が得られない。(D)成分として使用されるワックスは、酸化ワックスであることが好ましい。
酸化ワックスとしては、例えば、石油留分の精製において得られるパラフィンワックス、マイクロクリスタリンワックス、ペトロラタム等の各種ワックス及びこれらを酸化したもの等が挙げられ、中でも、他の成分との組み合わせにより防錆性とともに水置換性及び水分離性を向上させる観点から、パラフィンワックスを酸化した酸化ワックスが好ましい。
本実施形態において、(D)成分としては、上記の酸化ワックスを単独で、又は複数種を組み合わせて用いてもよい。
本実施形態の防錆油組成物は、塩基価100mgKOH/g以上である、金属スルフォネート、金属サリチレート及び金属フェネートから選ばれる少なくとも1種((E)成分)を含有することを要する。(E)成分は、1種又は2種以上を組み合わせて使用してもよい。
(E)成分として使用される金属スルフォネート、金属サリチレート及び金属フェネートから選ばれる少なくとも1種は、上記(C)成分の金属スルフォネート、金属サリチレート及び金属フェネートと同じ各種アニオンの金属塩である。(E)成分を含まないと、優れた防錆性、水置換性及び水分離性が得られない。また、(E)成分を含有することにより、低温安定性が改善される。
アルカリ土類金属フェネートとしては、アルキルフェノール、アルキルフェノールサルファイド、アルキルフェノールのマンニッヒ反応物のアルカリ土類金属塩、特に、マグネシウム塩、カルシウム塩等が挙げられ、中でもカルシウム塩が好ましく用いられる。
アルカリ土類金属サリシレートとしては、アルキルサリチル酸のアルカリ土類金属塩、特に、マグネシウム塩、カルシウム塩等が挙げられ、中でもカルシウム塩が好ましく用いられる。
アルカリ土類金属系清浄剤を構成するアルキル基としては、炭素数4~30のものが好ましく、より好ましくは6~18のアルキル基であり、これらは直鎖状でも分枝状でもよい。これらはまた1級アルキル基、2級アルキル基または3級アルキル基でもよい。
上限として好ましくは600mgKOH/g以下、より好ましくは550mgKOH/g以下、更に好ましくは525mgKOH/g以下、より更に好ましくは509mgKOH/g以下である。
本実施形態において、(E)成分としては、上記の金属スルフォネート、金属サリチレート及び金属フェネートを単独で、又は複数種を組み合わせて用いてもよい。
本実施形態の防錆油組成物は、多価アルコールのフルエステル((F)成分)を含有することを要する。(F)成分は、1種又は2種以上を組み合わせて使用してもよい。
(F)成分を含まないと、優れた防錆性、水置換性及び水分離性が得られない。
多価アルコールのフルエステルにおける多価アルコールとしては、他の各成分との組み合わせにより防錆性とともに水置換性及び水分離性を向上させる観点から、トリメチロールプロパン、ペンタエリスリトール、ソルビタンが好ましく挙げられ、ペンタエリスリトールがより好ましい。本実施形態において、フルエステルに用いられる多価アルコールは、一種単独又は複数種を組み合わせて用いてもよい。
これと同様の観点から、脂肪酸は、モノカルボン酸であることが好ましく、飽和脂肪酸でも不飽和脂肪酸でもよく、また直鎖状脂肪酸でも分枝状脂肪酸でもよい。脂肪酸の炭素数は、より好ましくは10以上、更に好ましくは12以上であり、上限としてより好ましくは20以下、更に好ましくは18以下である。
脂肪酸は、一種単独又は複数種を組み合わせて用いてもよい。
本実施形態の防錆油組成物は、前記(A-1)、(A-2)、(B)~(F)成分を含有するものであり、これら(A-1)、(A-2)、(B)~(F)成分のみからなるものであってもよいし、またこれら(A-1)、(A-2)、(B)~(F)成分以外に、その他の成分を含有していてもよい。その他の成分として具体的には、以下の添加剤が挙げられる。
塩基性金属スルフォネート、塩基性金属サリチレート、塩基性金属フェネートとしては、前記の(C)成分における塩基価が、50mgKOH/gより大きく、100mgKOH/g未満である化合物が挙げられる。
酸化防止剤としては、2,6-ジ-t-ブチルフェノールや2,6-ジ-t-ブチル-p-クレゾール等のフェノール系酸化防止剤、アルキル化ジフェニルアミンやフェニル-α-ナフチルアミン等のアミン系酸化防止剤が挙げられる。
増粘剤としては、例えば、エステル(ペンタエリスリトール、トリメチロールプロパンのフルエステル,部分エステル)、ポリブテン、ポリプロピレン/ポリエチレンのブロック又はランダムポリマーが挙げられる。
本実施形態の防錆油組成物の40℃動粘度は、好ましくは1.0mm2/s以上、より好ましくは1.3mm2/s以上、更に好ましくは1.5mm2/s以上であり、上限として好ましくは35mm2/s以下、より好ましくは20.0mm2/s以下、更に好ましくは10.0mm2/s以下であり、より更に好ましくは5.0mm2/s以下である。
本実施形態の防錆油組成物は、金属材料の表面に塗布して使用する。本実施形態の防錆油組成物は、金属表面に塗布することで、金属材料の表面に被膜を形成し、該被膜の形成により金属材料の表面における錆等の発生を防止し得る。また、優れた水置換性及び水分離性を有するため、金属材料の加工、製造を効率よく行うことが可能となる。すなわち、本実施形態の防錆油組成物は、金属材料の加工、製造に好適に用いられる、ともいえる。
塗布は、金属材料を防錆油組成物に浸漬させることで行ってもよいし、金属材料に防錆油組成物を吹き付ける、その他の各種の塗装方法により行うことができ、浸漬により行うことが容易であり好ましい。
防錆油組成物が使用される金属は、純鉄、鋼、鋳鋼、合金鋼、炭素鋼、銑鉄、鋳鉄等の鉄を含有する金属が好ましく、また他の金属に使用することも可能である。
本実施形態の防錆油組成物は、防錆が必要な用途であれば特に制限なく用いることが可能であり、例えば、工程間の防錆、出荷前後の防錆等に好適に用いられる。
また、これと同様の観点から、この防錆油組成物の希釈後の液の40℃動粘度は、好ましくは1.0mm2/s以上、より好ましくは1.2mm2/s以上、更に好ましくは1.5mm2/s以上であり、上限として好ましくは5.0mm2/s以下、より好ましくは4.5mm2/s以下、更に好ましくは3.0mm2/s以下である。
本実施形態の防錆油組成物の製造方法は、下記(A-1)、(A-2)、(B)~(F)成分を、前記(A-1)、(A-2)、(B)~(F)成分の合計量に対する前記(B)成分の含有量が、2.5質量%以上となるように混合するものである。
(A-2)成分:40℃動粘度が、6.00mm2/sより大きい、基油
(B)成分:HLBが、6.70以上である、一般式(1)で表されるアルキレングリコール
(D)成分:酸価10mgKOH/g以上である、ワックス
(E)成分:塩基価100mgKOH/g以上である、金属スルフォネート、金属サリチレート及び金属フェネートから選ばれる少なくとも1種
(F)成分:多価アルコールのフルエステル
配合の順序としては、特に制限はなく、例えば(A-1)成分に、(A-2)、(B)~(F)成分を逐次配合してもよいし、(B)~(F)成分を予め混合したものを配合してもよい。また、(D)成分と(E)成分とは互いに反応する場合があるが、(D)成分と(E)成分を予め混合してから、(A)成分に配合してもよい。
(1)動粘度
動粘度は、JIS K2283:2000に準じ、ガラス製毛管式粘度計を用いて測定した。
(2)塩基価
塩基価は、JIS K2501:2003「石油製品及び潤滑油-中和価試験方法」の「8.電位差滴定法(塩基価・塩酸法)」に準拠して測定した。
(3)酸価
酸価は、JIS K2501:2003「石油製品及び潤滑油-中和価試験方法」の「7.電位差滴定法(酸価)」に準拠して測定した。
GA材1(亜鉛メッキ鋼板、JAC270D、60mm×80mm、厚さ1mm)をシリンダー5中のイオン交換水6に浸漬し、静かに引き上げた後、表面に水層2が形成されたことを確認した。ただちに80mLの実施例又は比較例の防錆油組成物7を入れた100mL(ミリリットル)のシリンダー5に水層が形成されたGA材3を完全に浸漬した(図1)。浸漬後GA材の水層がすべて除去されるまでの時間を測定した。測定された時間により以下のように判定した。
B:2秒超、4秒以下
C:4秒超、5秒以下
D:5秒超
Dを不合格と判定した。
100mLのシリンダー5に40mLの実施例又は比較例の防錆油組成物7と40mLのイオン交換水6を入れ、5秒上下に振とう後の液体8を静置し、油/水界面9を目視で確認できた時間を計測し、以下の評価基準で判定した(図2)。
B:8分超、9分以下
C:9分超、10分以下
D:10分超
E:乳化し、測定不能
D及びEを不合格と判定した。
実施例及び比較例の油組成物に、市販のSPCC-SDを浸漬して24時間の油切りをした後、3カ月軒下暴露試験を実施した。屋内で、点錆発生時点で錆ありと判定した。試験数は3で実施した。
A:3カ月錆なし
B:3カ月未満で錆発生
Bを不合格と判定した。
(試験条件)
試験環境:ISO9225:2012に規定の腐食カテゴリーでC2~C3相当(千葉沿岸部)
試験季節:7~9月
HLBは、『表面技術、Vol.50,No.12,1999,91ページ』の記載を参考に下記式により算出した。
HLB=7+Σ(σO×nO+σOH×nOH)+Σ(σPH×nPH)
分子内の置換基の数:nOは-O-の数、nOHは-OHの数、nPHはCH3-、-CH2-及び-CH=の数の合計
表1に記載した化合物を使用して、実施例1~53、比較例1~15の錆止め組成物を表2~13に記載される配合にて、(A-1)成分に、(A-2)、(B)~(F)成分を逐次配合し、防錆油組成物を調製した。得られた各防錆油組成物の防錆性、水置換性及び水分離性について、前記の方法により評価した。
以下に示す表中の記載を説明する。
表1中の(B)成分に関する、m1+m3、m2、n1、m2×n1は、一般式(1)における各符号に該当する。
(A-1)~(F)は、防錆油組成物(100質量%)に対する、(A-1)成分、(A-2)成分、(B)成分、(C)成分、(D)成分、(E)成分及び(F)成分の合計の含有量を意味する。
(A-1)+(A-2)は、防錆油組成物(100質量%)に対する、(A-1)成分及び(A-2)成分の合計の含有量を意味する。
(B)+(C)は、防錆油組成物(100質量%)に対する、(B)成分及び(C)成分の合計の含有量を意味する。
(A-2)+(D)+(E)+(F)は、防錆油組成物(100質量%)に対する、(A-2)成分、(D)成分、(E)成分及び(F)成分の合計の含有量を意味する。
40℃動粘度は、各防錆油組成物の40℃における動粘度である。
表5及び6に示されるように、実施例4(表5)及び実施例5(表6)に関しても(B)成分の含有量を変化させた実施例及び比較例の防錆油組成物を調製した。この結果から(B)成分として使用する化合物によらず、(B)成分が2質量%以下となると水置換性及び水分離性が悪化することが確認できた。
Claims (20)
- 下記(A-1)、(A-2)、(B)~(F)成分を含有し、前記(A-1)、(A-2)、(B)~(F)成分の合計量に対する前記(B)成分の含有量が、2.5質量%以上である、防錆油組成物。
(A-1)成分:40℃動粘度が、6.00mm2/s以下である、溶剤
(A-2)成分:40℃動粘度が、6.00mm2/sより大きい、基油
(B)成分:HLBが、6.70以上である、一般式(1)で表されるアルキレングリコール
(式中、R1及びR2はそれぞれ独立して、炭素原子数1~10のアルキル基を表し、m1及びm3はそれぞれ独立して0~10の整数を表し、m2は0又は1を表し、n1は1~10の整数を表し、m1、m2及びm3の和は1以上であり、m2とn1の積は0又は1である。
(C)成分:塩基価50mgKOH/g以下である、金属スルフォネート、金属サリチレート及び金属フェネートから選ばれる少なくとも1種
(D)成分:酸価10mgKOH/g以上である、ワックス
(E)成分:塩基価100mgKOH/g以上である、金属スルフォネート、金属サリチレート及び金属フェネートから選ばれる少なくとも1種
(F)成分:多価アルコールのフルエステル - 前記防錆油組成物に対する前記(A-1)、(A-2)、(B)~(F)成分の合計の含有量が、90.0質量%以上である、請求項1記載の防錆油組成物。
- 前記防錆油組成物に対する前記(A-2)成分の含有量が、0.1質量%以上、30.0質量%以下である、請求項1又は2に記載の防錆油組成物。
- 前記防錆油組成物に対する前記(A-1)成分及び(A-2)成分の合計の含有量が、60.0質量%以上、95.0質量%以下である、請求項1~3のいずれか1項に記載の防錆油組成物。
- 前記防錆油組成物に対する前記(B)成分の含有量が、10.0質量%以下である、請求項1~4のいずれか1項に記載の防錆油組成物。
- (C)成分及び(E)成分が、アルカリ土類金属スルフォネート、アルカリ土類金属サリチレート及びアルカリ土類金属フェネートから選ばれる少なくとも1種である、請求項1~5のいずれか1項に記載の防錆油組成物。
- 前記防錆油組成物に対する前記(C)成分の含有量が、0.1質量%以上、10.0質量%以下である、請求項1~6のいずれか1項に記載の防錆油組成物。
- 前記防錆油組成物に対する前記(D)成分の含有量が、0.1質量%以上、10.0質量%以下である、請求項1~7のいずれか1項に記載の防錆油組成物。
- 前記防錆油組成物に対する前記(E)成分の含有量が、0.1質量%以上、10.0質量%以下である、請求項1~8のいずれか1項に記載の防錆油組成物。
- 前記防錆油組成物に対する前記(F)成分の含有量が、1.0質量%以上、10.0質量%以下である、請求項1~9のいずれか1項に記載の防錆油組成物。
- 前記(A-1)成分の40℃動粘度が、0.5mm2/s以上である、請求項1~10のいずれか1項に記載の防錆油組成物。
- 前記(A-2)成分の40℃動粘度が、800mm2/s以下である、請求項1~11のいずれか1項に記載の防錆油組成物。
- 前記一般式(1)で表されるアルキレングリコール中の炭素原子の数(SC)と酸素原子の数(SO)の比[SC/SO]が、4未満である、請求項1~12のいずれか1項に記載の防錆油組成物。
- 前記(D)成分が、パラフィンワックスを酸化した酸化ワックスである、請求項1~13のいずれか1項に記載の防錆油組成物。
- 前記(F)成分が、トリメチロールプロパン、ペンタエリスリトール又はソルビタンから選ばれる多価アルコールと、炭素原子数8以上24以下の脂肪酸とのフルエステルである、請求項1~14のいずれか1項に記載の防錆油組成物。
- 前記防錆油組成物に対する前記(B)成分及び(C)成分の合計の含有量が、2.6質量%以上、20.0質量%以下である、請求項1~15のいずれか1項に記載の防錆油組成物。
- 前記(E)成分と(F)成分との質量割合([(E)/(F)])が、0.01以上、1.00以下である請求項1~16のいずれか1項に記載の防錆油組成物。
- 前記防錆油組成物に対する前記(A-2)成分、(D)成分、(E)成分及び(F)成分の合計の含有量が、5.0質量%以上、50.0質量%以下である、請求項1~17のいずれか1項に記載の防錆油組成物。
- 40℃動粘度が、1.0mm2/s以上、35mm2/s以下である請求項1~18のいずれか1項に記載の防錆油組成物。
- 下記(A-1)、(A-2)、(B)~(F)成分を、前記(A-1)、(A-2)、(B)~(F)成分の合計量に対する前記(B)成分の含有量が、2.5質量%以上となるように混合する、防錆油組成物の製造方法。
(A-1)成分:40℃動粘度が、6.00mm2/s以下である、溶剤
(A-2)成分:40℃動粘度が、6.00mm2/sより大きい、基油
(B)成分:HLBが、6.70以上である、一般式(1)で表されるアルキレングリコール
(式中、R1及びR2はそれぞれ独立して、炭素原子数1~10のアルキル基を表し、m1及びm3はそれぞれ独立して0~10の整数を表し、m2は0又は1を表し、n1は1~10の整数を表し、m1、m2及びm3の和は1以上であり、m2とn1の積は0又は1である。
(C)成分:塩基価50mgKOH/g以下である、金属スルフォネート、金属サリチレート及び金属フェネートから選ばれる少なくとも1種
(D)成分:酸価10mgKOH/g以上である、ワックス
(E)成分:塩基価100mgKOH/g以上である、金属スルフォネート、金属サリチレート及び金属フェネートから選ばれる少なくとも1種
(F)成分:多価アルコールのフルエステル
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WO2011001554A1 (ja) * | 2009-06-29 | 2011-01-06 | 新日本石油株式会社 | さび止め油組成物 |
WO2020184436A1 (ja) * | 2019-03-08 | 2020-09-17 | 出光興産株式会社 | 錆止め油組成物及びその製造方法 |
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WO2020241784A1 (ja) * | 2019-05-28 | 2020-12-03 | 花王株式会社 | 防錆剤、防錆剤組成物、被膜形成材、被膜、及び金属部品 |
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WO2011001554A1 (ja) * | 2009-06-29 | 2011-01-06 | 新日本石油株式会社 | さび止め油組成物 |
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