CN117083418A

CN117083418A - Rust preventive oil composition and method for producing same

Info

Publication number: CN117083418A
Application number: CN202280025122.9A
Authority: CN
Inventors: 田卷匡基
Original assignee: Idemitsu Kosan Co Ltd
Current assignee: Idemitsu Kosan Co Ltd
Priority date: 2021-03-29
Filing date: 2022-03-29
Publication date: 2023-11-17
Also published as: JPWO2022210808A1; WO2022210808A1

Abstract

By containing the components (A-1): specific solvents, (a-2) ingredients: specific base oils, (B) ingredients: specific alkylene glycol, (C) component: 1 component (D) selected from metal sulfonate, metal salicylate and metal phenolate having a base number of 50mgKOH/g or less: specific waxes, (E) ingredients: 1 kind selected from metal sulfonate, metal salicylate and metal phenolate with a base number of more than 100mgKOH/g and (F) component: a rust preventive oil composition having excellent rust preventive properties, water substitution properties and water separation properties, and a method for producing the same, wherein the content of the component (B) is 2.5 mass% or more relative to the total amount of the components (A-1), (A-2) and (B) to (F), and the total amount of the components (A-2) and (B) is a full ester of a specific polyol.

Description

Rust preventive oil composition and method for producing same

Technical Field

The present invention relates to a rust preventive oil composition and a method for producing the same.

Background

In order to prevent rust and stains from being generated on the metal surface after a manufacturing step or after the product leaves the factory, a rust preventive oil is generally applied to the metal surface. On the other hand, the metal material is subjected to various kinds of processing such as cutting and pressing using processing oil, and is sometimes washed with a washing liquid during production.

The rust preventive oil may be formed by coating a surface of a metal material after various kinds of processing, washing, or the like are performed on the metal material. In the case where the processing oil, the cleaning liquid, and the like are aqueous, the rust preventive oil needs to be coated on the metal surface after the processing oil and the cleaning liquid are removed from the metal surface in order to prevent rust from occurring due to the processing oil and the cleaning liquid.

Therefore, when a post-coating rust preventive oil such as a water-based processing liquid is used, it is usual to apply a rust preventive oil excellent in rust preventive property to a metal surface after removing water by applying an oil agent excellent in water substitution. The water substitution means that an additive is permeated between water (aqueous solution) attached to the metal surface and the metal, and the water on the metal surface is substituted for the rust preventive oil. In order to improve the water substitution, for example, as described in patent document 1, a water substitution agent has been developed which contains a nonaqueous solvent and a surfactant containing a cationic active agent, a higher amine, a carboxylate thereof, or the like.

In order to simplify the steps, there have been attempts to omit a step of removing water by applying an oil agent or the like excellent in water substitution. In this case, the rust preventive oil is required to have not only rust preventive properties under an exposed environment but also good water substitution properties. In order to provide such rust preventive oil, a rust preventive oil has been developed which contains a low-viscosity mineral oil, a high-viscosity mineral oil, fatty acid amine salts, esters, and a rust preventive agent such as a sarcosine compound (for example, refer to patent document 2).

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open No. 8-60191

Patent document 2: japanese patent laid-open publication No. 2013-199670

Disclosure of Invention

Problems to be solved by the invention

However, both the additive for imparting water substitution (water substitute) and the additive for imparting rust inhibitive performance (rust inhibitive agent) are adsorbed on the metal surface, thereby imparting water substitution, rust inhibitive performance. Therefore, in order to achieve both water substitution and rust inhibitive performance, if both the water substitution agent and the rust inhibitive agent are blended in the rust inhibitive oil, it is believed that they compete for adsorption on the metal surface, and it is generally difficult to achieve both water substitution and rust inhibitive performance.

For example, in the water substitute disclosed in patent document 1, sufficient rust inhibitive performance cannot be obtained. In addition, in the rust preventive oil composition disclosed in patent document 2, it is also believed that the fatty acid amine salt functions as a water substitute, and although both the water substitute and the rust preventive agent are blended, it is difficult to sufficiently improve the rust preventive property under the exposed environment.

Further, when the rust inhibitive oil composition is applied to a metal material, for example, the metal material is immersed in the rust inhibitive oil composition, but moisture adhering to the surface of the metal material during immersion may be mixed into the rust inhibitive oil composition. Therefore, in order to separate water mixed in the rust preventive oil composition from the rust preventive oil composition, water separation property is also practically required for the rust preventive oil composition.

In view of the above, the present invention provides a rust preventive oil composition that can provide excellent rust preventive properties, water substitution properties, and water separation properties, and a method for producing the same.

Means for solving the problems

As a result of intensive studies in view of the above problems, the present inventors have found that the present invention can be solved by the following invention. That is, the present invention provides a rust preventive oil composition having the following constitution and a method for producing the rust preventive oil composition.

As a result of intensive studies, the present inventors have found that the above problems can be solved by using a specific water remover in combination with a specific rust inhibitor in addition to a solvent and a base oil in a rust preventive oil composition, and have completed the present invention as follows. That is, the present invention provides the following [1] to [20].

[1]

A rust preventive oil composition comprising the following components (A-1), (A-2) and (B) to (F), wherein the content of the component (B) is 2.5% by mass or more relative to the total amount of the components (A-1), (A-2) and (B) to (F),

(A-1) component: kinematic viscosity at 40℃of 6.00mm ² Solvents below/s

(A-2) component: a kinematic viscosity at 40 ℃ of more than 6.00mm ² Base oil of/s

(B) The components are as follows: alkylene glycol represented by general formula (1) having HLB of 6.70 or more

[ chemical 1]

(wherein R is ¹ And R is ² Each independently represents an alkyl group having 1 to 10 carbon atoms, m ¹ And m ³ Each independently represents an integer of 0 to 10, m ² Represents 0 or 1, n ¹ Represents an integer of 1 to 10, m ¹ 、m ² And m ³ Sum is more than 1, m ² And n ¹ The product of (1) is 0 or 1);

(C) The components are as follows: at least 1 kind selected from metal sulfonate, metal salicylate and metal phenoxide having a base number of 50mgKOH/g or less

(D) The components are as follows: wax with acid value of more than 10mgKOH/g

(E) The components are as follows: at least 1 kind selected from metal sulfonate, metal salicylate and metal phenolate with a base number of 100mgKOH/g or more

(F) The components are as follows: full esters of polyols.

[2]

The rust preventive oil composition according to [1], wherein the total content of the components (A-1), (A-2) and (B) to (F) is 90.0% by mass or more relative to the content of the rust preventive oil composition.

[3]

The rust preventive oil composition according to [1] or [2], wherein the content of the component (A-2) is 0.1% by mass or more and 30.0% by mass or less relative to the rust preventive oil composition.

[4]

The rust preventive oil composition according to any one of [1] to [3], wherein the total content of the component (A-1) and the component (A-2) is 60.0% by mass or more and 95.0% by mass or less relative to the content of the rust preventive oil composition.

[5]

The rust preventive oil composition according to any one of [1] to [4], wherein the content of the component (B) relative to the rust preventive oil composition is 10.0% by mass or less.

[6]

The rust inhibitive oil composition according to any one of [1] to [5], wherein the (C) component and the (E) component are at least 1 selected from the group consisting of alkaline earth metal sulfonates, alkaline earth metal salicylates and alkaline earth metal phenates.

[7]

The rust preventive oil composition according to any one of [1] to [6], wherein the content of the component (C) is 0.1% by mass or more and 10.0% by mass or less relative to the rust preventive oil composition.

[8]

The rust preventive oil composition according to any one of [1] to [7], wherein the content of the component (D) is 0.1% by mass or more and 10.0% by mass or less relative to the rust preventive oil composition.

[9]

The rust preventive oil composition according to any one of [1] to [8], wherein the content of the component (E) is 0.1% by mass or more and 10.0% by mass or less relative to the rust preventive oil composition.

[10]

The rust preventive oil composition according to any one of [1] to [9], wherein the content of the component (F) is 1.0% by mass or more and 10.0% by mass or less relative to the rust preventive oil composition.

[11]

According to [1]]～[10]The rust preventive oil composition according to any one of the above components (A-1), wherein the kinematic viscosity at 40℃of the component (A-1) is 0.5mm ² And/s.

[12]

According to [1]]～[11]The rust preventive oil composition according to any one of the above components (A-2), wherein the kinematic viscosity at 40℃of the component (A-2) is 800mm ² And/s or less.

[13]

According to [1]]～[12]The rust preventive oil composition according to any one of the above general formula (1), wherein the number of carbon atoms (S) _C ) Number of oxygen atoms (S) _O ) Ratio [ S ] _C /S _O ]Below 4.

[14]

The rust inhibitive oil composition according to any of [1] to [13], wherein the component (D) is an oxidized wax obtained by oxidizing a paraffin wax.

[15]

The rust preventive oil composition according to any one of [1] to [14], wherein 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.

[16]

The rust inhibitive oil composition according to any of [1] to [15], wherein the total content of the components (B) and (C) is 2.6% by mass or more and 20.0% by mass or less relative to the rust inhibitive oil composition.

[17]

The rust preventive oil composition according to any one of [1] to [16], wherein the mass ratio of the component (E) to the component (F) ([ (E)/(F) ]) is 0.01 to 1.00.

[18]

The rust preventive oil composition according to any one of [1] to [17], wherein the total of the components (A-2), (D), (E) and (F) is 5.0% by mass or more and 50.0% by mass or less relative to the content of the rust preventive oil composition.

[19]

According to [1 ]]～[18]The rust preventive oil composition according to any one of claims, wherein the kinematic viscosity at 40 ℃ is 1.0mm ² Above/s and 35mm ² And/s or less.

[20]

A method for producing a rust preventive oil composition, comprising mixing the following components (A-1), (A-2) and (B) to (F) so that the content of the component (B) is 2.5% by mass or more relative to the total amount of the components (A-1), (A-2) and (B) to (F),

(A-1) component: kinematic viscosity at 40℃of 6.00mm ² Solvents below/s

[ chemical 2]

(D) The components are as follows: wax with acid value of more than 10mgKOH/g

(F) The components are as follows: full esters of polyols

ADVANTAGEOUS EFFECTS OF INVENTION

The present invention can provide a rust preventive oil composition which can improve rust preventive properties, water substitution properties and water separation properties, and a method for producing the same.

Drawings

FIG. 1 is a conceptual diagram of a method for determining water removability

FIG. 2 is a conceptual diagram of a method for determining water separation

Detailed Description

Hereinafter, a rust preventive oil composition and a method for producing the same according to an embodiment of the present invention (hereinafter, may be simply referred to as "the present embodiment") will be specifically described. In the present specification, the numerical values referred to in "below", "above" and "to" in the description of the numerical ranges are numerical values in any combination, and the numerical values of the examples are numerical values that can be used as an upper limit value or a lower limit value. For example, when "A-B" and "C-D" are described, the ranges of "A-D" and "C-B" are also included as numerical ranges within the scope of the present invention. The numerical ranges "lower limit value to upper limit value" described in the present specification mean a range from the lower limit value to the upper limit value.

[ antirust oil composition ]

The rust preventive oil composition of the present embodiment is required to contain the following components (A-1), (A-2) and (B) to (F), and the content of the component (B) is 2.5% by mass or more relative to the total amount of the components (A-1), (A-2) and (B) to (F).

(A-1) component: kinematic viscosity at 40℃of 6.00mm ² Solvents below/s

[ chemical 3]

(wherein R is ¹ And R is ² Each independently represents an alkyl group having 1 to 10 carbon atoms, m ¹ And m ³ Each independently represents an integer of 0 to 10, m ² Represents 0 or 1, n ¹ Represents an integer of 1 to 10, m ¹ 、m ² And m ³ Sum is more than 1, m ² And n ¹ The product of (2) is 0 or 1. )

(D) The components are as follows: wax with acid value of more than 10mgKOH/g

(F) The components are as follows: full esters of polyols

If the rust inhibitive oil composition of the present embodiment lacks any of the above-mentioned components (A-1), (A-2) and (B) to (F), and the content of the above-mentioned component (B) is not within the above-mentioned predetermined range, the effect of improving the rust inhibitive performance, water substitution and water separation performance cannot be obtained.

As described above, the performance required for the rust preventive oil composition such as rust preventive property, water substitution property, and water separation property is a performance that is exhibited depending on the degree of adsorption of each component on the surface of the metal material, and it is also expected that the adsorption of each component on the surface of the metal material is hindered and competitive adsorption occurs. Even if different components are added to obtain desired properties, the desired properties may not be obtained, and thus it is extremely difficult to combine additives for the desired properties, whereas the rust preventive oil composition of the present embodiment combines the above components and contains specific components in specific amounts, whereby it is possible to achieve the opposite properties of rust preventive property, water substitution property, and water separation property at a high level.

The rust preventive oil composition may be used as it is, or may be diluted in a solvent, a light mineral oil and/or a synthetic oil to be used as a diluted solution. When the diluent is prepared, the dilution ratio may be appropriately selected depending on the use condition and purpose of use, and the rust preventive oil composition in 100 parts by mass of the diluent is preferably 5 parts by mass or more and less than 100 parts by mass, more preferably 10 parts by mass or more and 80 parts by mass or less, still more preferably 20 parts by mass or more and 50 parts by mass or less.

Hereinafter, each component constituting the rust inhibitive oil composition according to the present embodiment will be described.

Component (A-1): solvent >

The rust inhibitive oil composition of the present embodiment is required to contain a kinematic viscosity of 6.00mm at 40 ℃ ² Solvent below/s.

The kinematic viscosity at 40℃is preferably 4.00mm from the viewpoints of rust resistance, water substitution and water separation ² The component (A-1) is preferably partially or completely volatilized after application, and more preferably 3.00mm from the viewpoint of exhibiting good volatility ² Preferably not more than/s, and more preferably 2.00mm ² And/s or less. The lower limit is not particularly limited, but is preferably 0.50mm from the viewpoint of improving the solubility and coating performance of other components ² Higher than/s, more preferably 0.70mm ² Higher than/s, more preferably 1.00mm ² And/s.

In the present specification, the kinematic viscosity at 40℃is according to JIS K2283:2000, a value measured by a glass capillary viscometer.

The solvent in this embodiment is a substance used for dissolving other components, and may be a liquid or a solid, or a solid may be a semisolid, and may be used without limitation as long as the kinematic viscosity at 40 ℃ is within the above range, and organic solvents, mineral oils, synthetic oils, and the like may be used, and from the viewpoints of rust resistance, water substitution, and water separation, organic solvents, mineral oils, or synthetic oils are preferable, and organic solvents or mineral oils are more preferable.

In this embodiment, the organic solvent, mineral oil, synthetic oil, or a mixture of plural kinds may be used singly.

Examples of the mineral oil include a residual oil obtained by atmospheric distillation of a paraffinic crude oil, an intermediate crude oil, or a naphthenic crude oil, a distillate obtained by vacuum distillation of an atmospheric distilled residual oil, and a purified oil obtained by purifying the distillate according to a conventional method, for example, a solvent-refined oil, a hydrorefined oil, a deasphalted oil, a dewaxing oil, a clay-treated oil, a hydrorefined oil, and the like. Further, mineral oil and the like obtained by isomerizing wax produced by a Fischer-Tropsch process or the like (GTL wax (Gas To Liquids WAX)) can be mentioned.

Examples of the synthetic oil include poly- α -olefins, α -olefin copolymers, polybutenes, alkylbenzenes, polyol esters, dibasic acid esters, polyoxyalkylene glycols, polyoxyalkylene glycol esters, polyoxyalkylene glycol ethers, hindered esters, silicone oils, and the like.

The organic solvent is preferably at least 1 selected from the group consisting of nonpolar solvents and aprotic polar solvents, and among these, hydrocarbon solvents such as aliphatic hydrocarbon solvents, alicyclic hydrocarbon solvents, and aromatic hydrocarbon solvents may be appropriately selected and used; alcohol solvents, ester solvents, aldehyde solvents, ketone solvents, ether solvents having 4 or more carbon atoms on one side, and carbon atom-containing solvents such as solvents containing carbon atoms and hetero atoms.

The organic solvent is an organic compound that is liquid at normal temperature and dissolves other substances. The organic solvent in this embodiment includes aliphatic hydrocarbons having 8 to 30 carbon atoms, and is more preferably isoparaffinic solvents having 8 to 30 carbon atoms.

In this embodiment, in view of easiness in adjusting the kinematic viscosity at 40℃of the component (A-1), it is also preferable to use a mixture of plural solvents having different kinematic viscosities.

The content of the component (a-1) in the rust inhibitive oil composition is preferably 40.0% by mass or more and 95.0% by mass or less, more preferably 50.0% by mass or more and 90.0% by mass or less, still more preferably 60.0% by mass or more and 85.0% by mass or less, from the viewpoints of rust inhibitive performance, water substitution performance and water separation performance.

Component (A-2): base oil >

The rust inhibitive oil composition of the present embodiment is required to contain a kinematic viscosity of more than 6.00mm at 40 ℃ ² Base oil/s.

The rust inhibitive oil composition of the present embodiment is required to contain the (A-1) component and the (A-2) component having different kinematic viscosities at 40℃so that the rust inhibitive oil composition can be made good in rust inhibitive performance, water substitution performance and water separation performance.

The kinematic viscosity at 40℃is preferably 10.00mm from the viewpoints of rust resistance, water substitution and water separation ² Higher than/s, more preferably 20.00mm ² Higher than/s, more preferably 25.00mm ² From the viewpoint of improving the solubility and coating performance of other components, it is preferably 800.00mm or more ² Less than/s, more preferably 600.00mm ² Preferably 500.00mm or less ² And/s or less.

The base oil of the present embodiment is not limited as long as the kinematic viscosity at 40 ℃ is within the above range, and is preferably a mineral oil or a synthetic oil, more preferably a mineral oil, which remains on the coating surface even if the solvent volatilizes.

In this embodiment, mineral oil, synthetic oil, or a mixture of plural kinds may be used singly.

The rust inhibitive oil composition of the present embodiment contains the above-mentioned (A-1) component and (A-2) component, and does not refer to only mixing the (A-1) component and the (A-2) component at the time of producing the rust inhibitive oil composition, but also includes mixing a semi-finished product containing the (A-1) component and the (A-2) component with a semi-finished product containing the (A-1) component and the (A-2) component, and refers to a case where the (A-1) component and the (A-2) component are contained as constituent components of the rust inhibitive oil composition.

More specifically, the component (A-2) preferably has a kinematic viscosity at 40℃of 10.00mm in view of easiness in adjusting the kinematic viscosity at 40℃and the like ² Above/s and 60.00mm ² Base oil with a kinematic viscosity of 60.00mm at 40 ℃ and 1/s or less ² Above/s and 800.00mm ² At least one of the base oils 2 of/s or less may contain both of these base oils 1 and 2.

The (A-2) component may be used alone or in combination of the base oils 1 and 2.

The base oil 1 preferably has a kinematic viscosity at 40℃of 10.00mm from the viewpoints of rust resistance, water substitution and water separation ² Higher than/s, more preferably 20.00mm ² Higher than/s, more preferably 25.00mm ² From the viewpoint of improving the solubility and coating performance of other components, it is preferably 60.00mm or more ² Less than/s, more preferably 50.00mm ² Preferably less than/s, and more preferably 40.00mm ² And/s or less.

The base oil 2 preferably has a kinematic viscosity at 40℃of 60.00mm from the viewpoints of rust resistance, water substitution and water separation ² Higher than/s, more preferably 200.00mm ² Higher than/s, more preferably 400.00mm ² From the viewpoint of improving the solubility and coating performance of other components, it is preferably 800.00mm or more ² Less than/s, more preferably 600.00mm ² Preferably 500.00mm or less ² And/s or less.

The content of the component (a-2) in the rust preventive oil composition is preferably 0.1 mass% or more and 30.0 mass% or less, more preferably 0.5 mass% or more and 25.0 mass% or less, and still more preferably 0.8 mass% or more and 22.0 mass% or less, from the viewpoint of improving the permeability into a metal material and sufficiently forming a coating film to improve the rust preventive property.

The total content of the components (a-1) and (a-2) in the rust preventive oil composition is preferably 60.0 mass% or more and 95.0 mass% or less, more preferably 70.0 mass% or more and 93.0 mass% or less, still more preferably 75.0 mass% or more and 90.0 mass% or less, still more preferably 79.0 mass% or more and 89.0 mass% or less, from the viewpoints of rust preventive property, water substitution property and water separation property.

The content of the component (a-2) relative to the total amount of the components (a-1) and (a-2) is preferably 0.1 mass% or more and 30.0 mass% or less, more preferably 0.5 mass% or more and 25.0 mass% or less, still more preferably 0.8 mass% or more and 20.0 mass% or less from the viewpoints of rust resistance, water substitution and water separation.

The content of the base oil 1 with respect to the total amount of the (a-2) component may be appropriately selected from 0 mass% to 100 mass%,

the base oil 1 may be omitted, but in the case of including the base oil 1, it is preferably 30.0 mass% or more, more preferably 40.0 mass% or more, still more preferably 45.0 mass% or more, and still more preferably substantially only the base oil 1 in order to improve water substitution and water separation properties.

Examples thereof include a petroleum residue obtained by atmospheric distillation of a paraffinic crude oil, an intermediate crude oil, or a naphthene crude oil, a distillate obtained by vacuum distillation of an atmospheric distilled petroleum residue, and a purified oil obtained by purifying the petroleum residue according to a conventional method, for example, a solvent-refined oil, a hydrorefined oil, a deasphalted oil, a dewaxing oil, a clay-treated oil, a hydrorefined oil, and the like. Further, mineral oil and the like obtained by isomerizing wax produced by a Fischer-Tropsch process or the like (GTL wax (Gas To Liquids WAX)) can be mentioned.

Component (B): alkylene glycol >

The rust inhibitive oil composition of the present embodiment is required to have a content of the component (B) of 2.5% by mass or more based on the total amount of the components (A-1), (A-2) and (B) to (F). From the viewpoint of improving rust resistance, water substitution property and water separation property, it is more preferably 2.8 mass% or more, and from the viewpoint of improving compatibility with other components, it is preferably 10.0 mass% or less, more preferably 8.0 mass% or less, and still more preferably 7.0 mass% or less.

The rust preventive 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 above general formula (1) may be used in combination of 1 or 2 or more.

HLB (hydrohilic-Lipophilic Balance) is a value indicating the degree of affinity of a surfactant for water and oil, and is determined by the method described in surface technology Vol.50 No. 12,1999p 87-91.

The upper limit is preferably 6.72 or more, more preferably 6.73 or more, from the viewpoint of improving rust inhibitive performance, water substitution performance and water separation performance, and is preferably 9.00 or less, more preferably 8.50 or less, more preferably 8.20 or less, from the viewpoint of improving permeability into a metal material and forming a coating film sufficiently to improve rust inhibitive performance.

R in the general formula (1) ¹ From the viewpoints of improving rust inhibitive performance, water substitution performance and water separation performance and enhancing compatibility with other components, an alkyl group having 2 to 10 carbon atoms is preferable, an alkyl group having 3 to 8 carbon atoms is more preferable, an alkyl group having 4 to 6 carbon atoms is more preferable, and the alkyl group may be a straight chain or branched chain, and n-C is more preferable ₄ H ₉ -group, i-C ₄ H ₉ -group or n-C ₆ H ₁₃ -a radical.

General formula (VI)(1) R in (a) ² From the viewpoints of improving rust inhibitive performance, water substitution performance and water separation performance and improving compatibility with other components, an alkyl group having 1 to 6 carbon atoms is preferable, and CH is more preferable ₃ -group, C ₂ H ₅ -group or n-C ₃ H ₇ The base group is more preferably CH in terms of easiness of scheduling ₃ -a radical.

m ¹ And m ³ From the viewpoints of improving rust inhibitive performance, water substitution and water separation performance and improving compatibility with other components, each independently is preferably an integer of 0 to 4, more preferably an integer of 0 to 3, still more preferably an integer of 0 to 2, m ¹ +m ³ Preferably an integer of 1 to 4, more preferably 1 or 2.

M in the general formula (1) ² Preferably 0 or 1, m ² When 1, it may be m ¹ ＜m ³ May be m ¹ ＞m ³ May be m ¹ ＝m ³ 。

m ¹ 、m ² And m ³ The total amount of (2) is preferably not less than 4, more preferably not more than 3, and even more preferably not less than 2 from the viewpoint of improving rust inhibitive performance, water substitution and water separation properties, and improving compatibility with other components.

N in the general formula (1) ¹ From the viewpoints of improving rust inhibitive performance, water substitution and water separation performance and improving compatibility with other components, the integer is preferably 1 to 4, more preferably 1 to 3.

m ² And n ¹ The product of (2) is preferably 0 or 1 from the viewpoints of improving rust resistance, water substitution and water separation properties and improving compatibility with other components.

n ¹ When the number is 2 or more, a plurality of m are present in the molecule ¹ May be the same or different, m ² May be the same or different, m ³ May be the same or different, and is more preferably the same in terms of ease of scheduling.

The number of carbon atoms (S) in the alkylene glycol represented by the general formula (1) _C ) Number of oxygen atoms (S) _O ) Ratio of (2)[S _C /S _O ]From the viewpoint of improving rust inhibitive performance, water substitution performance, and water separation performance, it is preferably less than 4, more preferably 3.9 or less, still more preferably 3.7 or less, preferably 1.5 or more, still more preferably 2.0 or more, still more preferably 2.3 or more.

More specifically, the alkylene glycol represented by the above general formula (1) is preferably 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, more preferably diethylene glycol monobutyl ether, diethylene glycol isobutyl ether or diethylene glycol monohexyl ether, and still more preferably diethylene glycol isobutyl ether or diethylene glycol monohexyl ether.

The content of the component (B) in the rust preventive oil composition is preferably 2.5 mass% or more, more preferably 2.6 mass% or more, from the viewpoint of improving the rust preventive property, water substitution property and water separation property, and is preferably 10.0 mass% or less, more preferably 8.0 mass% or less, more preferably 7.0 mass% or less, from the viewpoint of improving the compatibility with other components.

In particular, when diethylene glycol monobutyl ether is 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, and when diethylene glycol isobutyl ether is 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, more preferably 4.5% 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, more preferably 2.5% by mass or more and 5.5% by mass or less, more preferably 3.0% by mass or more and 5.3% by mass or less.

Component (C): metal sulfonate, metal salicylate, metal phenolate >

The rust inhibitive oil composition of the present embodiment is required to contain at least 1 ((C) component) selected from the group consisting of metal sulfonates, metal salicylates and metal phenates having a base number of 50mgKOH/g or less. If the component (C) is not contained, excellent rust inhibitive performance, water substitution performance and water separation performance cannot be obtained.

(C) The component (C) comprises 1 or more compounds selected from alkali metal sulfonate, alkali metal phenolate, alkali metal salicylate, alkaline earth metal sulfonate, alkaline earth metal phenolate, and alkaline earth metal salicylate. Among these, from the viewpoint of improving rust inhibitive performance, water substitution and water separation by combination with other components, at least 1 selected from the group consisting of alkaline earth metal sulfonate, alkaline earth metal salicylate and alkaline earth metal phenate is preferable as the component (C).

The alkaline earth metal sulfonate is exemplified by alkaline earth metal salts of alkylaromatic sulfonic acids obtained by sulfonating alkylaromatic compounds having a molecular weight of 300 to 1,500, preferably 400 to 700. In particular, magnesium salts, calcium salts, and the like can be cited, and among them, calcium salts are preferably used.

Examples of the alkaline earth metal phenoxide include alkylphenol, alkylphenol sulfide, and alkaline earth metal salts of Mannich reactant of alkylphenol, especially magnesium salt and calcium salt, among which calcium salt is preferably used.

The alkaline earth metal salicylate includes alkaline earth metal salts of alkylsalicylic acid, particularly magnesium salts and calcium salts, and among these, calcium salts are preferably used.

The alkyl group constituting the alkaline earth metal-based detergent is preferably a group having 4 to 30 carbon atoms, more preferably 6 to 18 carbon atoms, and may be linear or branched. It may also be a primary, secondary or tertiary alkyl group.

Among the alkaline earth metal sulfonates, alkaline earth metal phenates and alkaline earth metal salicylates, there are those obtained by directly reacting the aforementioned alkylaromatic sulfonic acid, alkylphenol sulfide, mannich reactant of alkylphenol, alkylsalicylic acid, etc. with alkaline earth metal base such as oxide, hydroxide, etc. of 1 or more alkaline earth metals selected from magnesium and calcium.

(C) The base number of the metal sulfonate, metal salicylate and metal phenolate of the component is below 50 mgKOH/g. If the base number is more than 50mgKOH/g, excellent rust inhibitive performance, water substitution and water separation performance cannot be obtained by the combination with other components.

(C) The base numbers of the metal sulfonates, metal salicylates, and metal phenates of the components are preferably 40mgKOH/g or less, more preferably 30mgKOH/g or less, and the lower limit is not particularly limited, but usually more than 0mgKOH/g, preferably 1mgKOH/g or more, more preferably 3mgKOH/g or more, from the viewpoint of improving rust inhibitive performance, water substitution property, and water separation property by combination with other components. (C) As can be seen from these base numbers, the components are classified into neutral metal sulfonates, neutral metal salicylates, and neutral metal phenates.

Base number according to JIS K2501:2003 "Petroleum products and lubricating oil-neutralization number test method" 9. Potential difference titration method (base number. Perchloric acid method) ".

In this embodiment, as the component (C), at least 1 selected from the group consisting of metal sulfonates, metal salicylates, and metal phenates may be used alone or in combination.

The metal content in the component (C) of the rust preventive oil composition is preferably 1.0 mass% or more, more preferably 1.5 mass% or more, further preferably 2.0 mass% or more, and as an upper limit, is preferably 10.0 mass% or less, more preferably 8.0 mass% or less, further preferably 5.0 mass% or less, from the viewpoint of improving the rust preventive property, water substitution property and water separation property by combination with other components.

The content of the metal-converted (C) component in the rust inhibitive oil composition is preferably 0.01% by mass or more, more preferably 0.02% by mass or more, still more preferably 0.03% by mass or more, and as an upper limit, preferably 0.5% by mass or less, more preferably 0.3% by mass or less, still more preferably 0.1% by mass or less, from the viewpoint of improving the rust inhibitive performance, water substitution property and water separation property by combination with other components.

From the same point of view, the content of the component (C) is preferably 0.1 mass% or more, more preferably 1.0 mass% or more, still more preferably 1.2 mass% or more, still more preferably 1.5 mass% or more, and as an upper limit, preferably 5.0 mass% or less, still more preferably 4.0 mass% or less, still more preferably 3.0 mass% or less, relative to the rust preventive oil composition.

The content of the component (C) is preferably 0.1 mass% or more, more preferably 0.2 mass% or more, still more preferably 0.3 mass% or more, relative to the rust inhibitive oil composition, from the viewpoint of improving the rust inhibitive performance, water substitution property and water separation property, and is preferably 10.0 mass% or less, more preferably 5.0 mass% or less, still more preferably 3.5 mass% or less, from the viewpoint of improving the compatibility with other components.

By combining the aforementioned component (B) and component (C), water substitution is improved. The total content of the component (B) and the component (C) in the rust preventive oil composition is preferably 2.6 mass% or more and 20.0 mass% or less from the viewpoint of improving the rust preventive property, water substitution property and water separation property. In particular, from the viewpoint of improving water substitution, it is more preferably 2.8 mass% or more, still more preferably 3.0 mass% or more, still more preferably 3.5 mass% or more, and from the viewpoint of improving compatibility with other components, it is more preferably 15.0 mass% or less, still more preferably 12.0 mass% or less, still more preferably 10.0 mass% or less, particularly preferably 9.5 mass% or less, and most preferably 9.0 mass% or less.

Component (D): wax >

The rust preventive oil composition of the present embodiment is required to contain a wax ((D) component) having an acid value of 10mgKOH/g or more. The component (D) may be used in combination of 1 or 2 or more.

If the component (D) is not contained, excellent rust inhibitive performance, water substitution performance and water separation performance cannot be obtained. The wax used as component (D) is preferably an oxidized wax.

Examples of the oxidized wax include various waxes such as paraffin wax, microcrystalline wax and petrolatum obtained in the purification of petroleum fractions, and substances obtained by oxidizing them, and among them, oxidized waxes obtained by oxidizing paraffin wax are preferable from the viewpoints of improving rust resistance, water substitution property and water separation property by combination with other components.

The acid value of the oxidized wax is 10mgKOH/g or more. If it is less than 10mgKOH/g, excellent rust inhibitive performance, water substitution and water separation properties cannot be obtained. The acid value of the oxidized wax is preferably 12mgKOH/g or more, more preferably 200mgKOH/g or less, still more preferably 100mgKOH/g or less, and still more preferably 50mgKOH/g or less, from the viewpoint of improving rust resistance, water substitution property and water separation property by combination with other components. In this specification, the acid value is in accordance with JIS K2501:2003 "Petroleum products and lubricating oil-neutralization number test method" 7. Potential difference titration (acid value) "measurement.

The melting point of the oxidized wax is preferably 25 ℃ or higher, more preferably 28 ℃ or higher, still more preferably 30 ℃ or higher, and as an upper limit, 80 ℃ or lower, more preferably 70 ℃ or lower, still more preferably 60 ℃ or lower. If the melting point of the oxidized wax is 30 ℃ or higher, the rust preventive property and the low-temperature stability are improved, and if it is 80 ℃ or lower, the precipitation of wax components can be further suppressed. In the present specification, the melting point of the wax is in accordance with JIS K0064:1992 "melting Point and melting Range determination method of chemical products".

In this embodiment, as the component (D), the above-mentioned oxidized waxes may be used singly or in combination.

(D) The content of the component (a) in the rust preventive oil composition is preferably 0.1% by mass or more and 10.0% by mass or less. From the viewpoint of improving rust resistance, water substitution property and water separation property, it is preferably 0.1 mass% or more, more preferably 0.2 mass% or more, still 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, more preferably 5.0 mass% or less, still more preferably 3.5 mass% or less.

Component (E): metal sulfonate, metal salicylate, metal phenolate >

The rust inhibitive oil composition of the present embodiment is required to contain at least 1 ((E) component) selected from the group consisting of metal sulfonates, metal salicylates and metal phenates having a base number of 100mgKOH/g or more. The component (E) may be used in combination of 1 or 2 or more.

At least 1 selected from the group consisting of metal sulfonates, metal salicylates, and metal phenates used as the component (E) is a metal salt of the same various anions as the metal sulfonates, metal salicylates, and metal phenates of the component (C) described above. If the component (E) is not contained, excellent rust inhibitive performance, water substitution performance and water separation performance cannot be obtained. In addition, by containing the component (E), the low-temperature stability is improved.

(E) The component (C) is at least 1 compound selected from alkali metal sulfonate, alkali metal phenolate, alkali metal salicylate, alkaline earth metal sulfonate, alkaline earth metal phenolate, and alkaline earth metal salicylate. Among these, at least 1 selected from the group consisting of alkaline earth metal sulfonates, alkaline earth metal salicylates, and alkaline earth metal phenates is preferable from the viewpoint of improving rust inhibitive performance, water substitution, and water separation by combination with other components.

The aforementioned component (C) and component (E) are preferably at least 1 selected from the group consisting of alkaline earth metal sulfonates, alkaline earth metal salicylates, and alkaline earth metal phenates.

The alkaline earth metal phenoxide includes alkylphenol, alkylphenol sulfide, alkaline earth metal salts of Mannich reactant of alkylphenol, especially magnesium salt, calcium salt, etc., among which calcium salt is preferably used.

(E) The metal sulfonates, metal salicylates, and metal phenates of the composition are known as overbased metal sulfonates, overbased metal salicylates, and overbased metal phenates having a base number of 100mgKOH/g or more. If the base number is less than 100mgKOH/g, excellent rust inhibitive performance cannot be obtained particularly, and excellent rust inhibitive performance, water substitution and water separation performance cannot be obtained by combination with other components.

(E) The base numbers of the overbased metal sulfonates, overbased metal salicylates, and overbased metal phenates of the components are preferably 150mgKOH/g or more, more preferably 200mgKOH/g or more, still more preferably 225mgKOH/g or more, mainly from the viewpoint of improving rust inhibitive performance, and improving rust inhibitive performance and water substitution and water separation properties by combination with other components, and are preferably set to be high from the viewpoint of improving rust inhibitive performance.

The upper limit is preferably 600mgKOH/g or less, more preferably 550mgKOH/g or less, still more preferably 525mgKOH/g or less, still more preferably 509mgKOH/g or less.

In this embodiment, as the component (E), the above-mentioned metal sulfonate, metal salicylate and metal phenolate may be used singly or in combination of plural kinds.

(E) The metal content in the metal sulfonate, metal salicylate, and metal phenate of the component is preferably 5.0 mass% or more, more preferably 10.0 mass% or more, still more preferably 15.0 mass% or more, and as an upper limit, preferably 30.0 mass% or less, more preferably 25.0 mass% or less, still more preferably 20.0 mass% or less, mainly from the viewpoint of improving rust inhibitive performance, and improving rust inhibitive performance and water substitution and water separation performance by combination with other components.

From the same point of view, the content of the component (E) in the rust inhibitive oil composition is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, still more preferably 0.7% by mass or more, and the upper limit is preferably 10.0% by mass or less, more preferably 5.0% by mass or less, still more preferably 3.5% by mass or less, still more preferably 2.3% by mass or less.

Among the components (A-1), (A-2) and (B) to (F), the component (D) and the component (E) are components that react with each other to easily produce a reaction product, but even if the reaction product is produced, the rust inhibitive performance, water substitution performance and water separation performance are not affected, and if the content is set as described above, there is an effect of improving particularly the rust inhibitive performance.

Component (F): full ester of polyol

The rust inhibitive oil composition of the present embodiment is required to contain a full ester of a polyol ((F) component). The component (F) may be used in combination of 1 or 2 or more.

If the component (F) is not contained, excellent rust inhibitive performance, water substitution performance and water separation performance cannot be obtained.

The full ester of the polyol used as the component (F) is an ester in which all the hydroxyl groups in the polyol are esterified and no hydroxyl groups remain in the molecule. If the component (F) is not contained, excellent rust inhibitive performance, water substitution performance and water separation performance cannot be obtained.

The polyhydric alcohol in the full ester of the polyhydric alcohol is preferably trimethylolpropane, pentaerythritol or sorbitan, more preferably pentaerythritol, from the viewpoint of improving rust inhibitive performance, water substitution performance and water separation performance by combination with other components. In this embodiment, the polyhydric alcohol used in the full ester may be used singly or in combination of plural kinds.

In the present embodiment, from the viewpoint of improving rust inhibitive performance, water substitution performance, and water separation performance by combination with other components, the full ester of the above polyol, that is, the full ester of a polyol such as trimethylolpropane, pentaerythritol, sorbitan, and the like and a fatty acid having 8 to 24 carbon atoms is more preferable.

From the same point of view, the fatty acid is preferably a monocarboxylic acid, may be a saturated fatty acid or an unsaturated fatty acid, and may be a linear fatty acid or a branched fatty acid. The number of carbon atoms of the fatty acid is more preferably 10 or more, still more preferably 12 or more, and is more preferably 20 or less, still more preferably 18 or less as an upper limit.

Examples of the fatty acid include octanoic acid, 2-ethylhexanoic acid, nonanoic acid, isononanoic acid, decanoic acid, isodecanoic acid, undecanoic acid, lauric acid, isostearic acid, tridecanoic acid, myristic acid, isomyristic acid, pentadecanoic acid, palmitic acid, isopalmitic acid, stearic acid, isostearic acid, arachic acid, behenic acid, undecylenic acid, cis-4-tetradecenoic acid, cis-5-tetradecenoic acid, cis-9-tetradecenoic acid, cis-6-hexadecenoic acid, palmitoleic acid, cis-6-octadecenoic acid, oleic acid, trans-9-octadecenoic acid, cis-11-octadecenoic acid, and trans-11-octadecenoic acid. Among these, oleic acid is preferred from the viewpoint of improving rust inhibitive performance, water substitution and water separation by combination with other components.

The fatty acids may be used singly or in combination of plural kinds.

The total ester of the component (F) inevitably contains a partial ester of a polyol due to partial hydrolysis, and the content of the component (F) in the total of the component (F) and the partial ester of a polyol is preferably 80 mass% or more, more preferably 85 mass% or more, and still more preferably 90 mass% or more.

The content of the component (F) in the rust inhibitive oil composition is preferably 1.00% by mass or more, more preferably 1.50% by mass or more, still more preferably 2.00% by mass or more, still more preferably 2.50% by mass or more, and as an upper limit, preferably 10.00% by mass or less, still more preferably 8.00% by mass or less, and still more preferably 7.00% by mass or less, from the viewpoint of improving rust inhibitive performance, water substitution performance, and water separation performance.

The component (E) and the component (F) have complementary characteristics. (E) The component (c) has excellent rust inhibitive performance, and when used together with the component (F), the water substitution performance and the water separation performance can be further improved. From such a viewpoint, the mass ratio ([ (E)/(F) ]) ] of the component (E) to the component (F) is preferably 0.01 or more, more preferably 0.10 or more, further preferably 0.13 or more, and as an upper limit, it is preferably 1.00 or less, more preferably 0.80 or less, further preferably 0.50 or less, further preferably 0.40 or less.

The component (A-2), the component (D), the component (E) and the component (F) have a large effect of improving rust inhibitive performance. Particularly, in view of rust inhibitive performance, the total content of the (A-2), the (D), the (E) and the (F) components in the rust inhibitive 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 still more preferably 28.0% by mass or less.

A kinematic viscosity at 40 ℃ of 6mm relative to the rust preventive oil composition ² Solvent with a viscosity at 40 ℃ of more than 6mm ² The total content of the base oil/s, the alkylene glycol represented by the general formula (1) having an HLB of 6.70 or more, at least 1 selected from the group consisting of metal sulfonate, metal salicylate and metal phenate having a base number of 50mgKOH/g or less, the wax having an acid number of 10mgKOH/g or more, at least 1 selected from the group consisting of metal sulfonate, metal salicylate and metal phenate having a base number of 100mgKOH/g or more, and the full ester of the polyhydric alcohol is preferably 80.0 mass% or more, more preferably 90.0 mass% or more, still more preferably 95.0 mass% or more, and as an upper limit, preferably 99.9 mass% or less, still more preferably 99.7 mass% or less.

The rust inhibitive oil composition of the present embodiment includes, of course, the mode in which the components (A-1), (A-2) and (B) to (F) are present, and also includes, for example, the mode in which a plurality of components including these components are reacted with each other to obtain a reaction product. In the case of containing a reaction product, the content of the component contributing to the reaction product is set to be the sum of the amount present in the composition without reacting with the component contributing to the reaction product.

The total content of the components (a-1), (a-2) and (B) to (F) is preferably 90.0 mass% or more, more preferably 93.0 mass% or more, and even more preferably 95.0 mass% or more, from the viewpoint of achieving the reverse properties such as rust inhibitive performance, water substitution performance and water separation performance at a high level with respect to the rust inhibitive oil composition. The upper limit is not particularly limited, and may be substantially 100% by mass except for the compound which is inevitably mixed.

< other Components >)

The rust inhibitive oil composition of the present embodiment contains the aforementioned components (A-1), (A-2) and (B) to (F), and may be composed of only these components (A-1), (A-2) and (B) to (F), and may contain other components in addition to these components (A-1), (A-2) and (B) to (F). The following additives are specifically exemplified as the other components.

Examples of the other components include alkali metal sulfonate, alkali metal salicylate, alkali metal phenolate, antioxidant, thickener, metal anticorrosive agent, and pour point depressant.

Examples of the basic metal sulfonate, basic metal salicylate, and basic metal phenate include those having a base number of more than 50mgKOH/g and less than 100mgKOH/g in the component (C).

Examples of the antioxidant include phenol antioxidants such as 2, 6-di-t-butylphenol and 2, 6-di-t-butyl-p-cresol, and amine antioxidants such as alkylated diphenylamine and phenyl- α -naphthylamine.

Examples of the metal anticorrosive agent include benzotriazole-based compounds, tolyltriazole-based compounds, imidazole-based compounds, pyrimidine-based compounds, and the like. Examples of the pour point depressant include ethylene-vinyl acetate copolymers, condensates of chlorinated paraffin and naphthalene, condensates of chlorinated paraffin and phenol, polymethacrylates, and polymers such as polyalkylstyrenes.

Examples of the thickener include esters (pentaerythritol, full esters of trimethylolpropane, partial esters), polybutenes, and block or random polymers of polypropylene/polyethylene.

The total content of the other components 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, based on the rust preventive oil composition. That is, the total content of the components (a-1), (a-2) and (B) to (F) in the rust preventive oil composition is preferably 80.0% by mass or more, more preferably 90.0% by mass or more, still more preferably 95.0% by mass or more, and as an upper limit, preferably 99.9% by mass or less, more preferably 99.7% by mass or less.

(various Properties of rust inhibitive oil composition)

The rust inhibitive oil composition of the present embodiment preferably has a kinematic viscosity at 40℃of 1.0mm ² Higher than/s, more preferably 1.3mm ² Higher than/s, more preferably 1.5mm ² At least/s, preferably 35mm as an upper limit ² Less than/s, more preferably 20.0mm ² Preferably less than/s, more preferably 10.0mm ² Preferably less than/s, more preferably 5.0mm ² And/s or less.

The flash point of the rust preventive oil composition of the present embodiment is preferably 50 ℃ or higher, more preferably 55 ℃ or higher, still more preferably 60 ℃ or higher, and is preferably 300 ℃ or lower, more preferably 250 ℃ or lower, still more preferably 200 ℃ or lower, as an upper limit. If the flash point is within the above range, the treatment is easier, and furthermore, the rust inhibitive performance, and water substitution and separation properties are easily improved. In the present specification, the flash point is according to JIS K2265: 2007.

The rust inhibitive oil composition of the present embodiment preferably has a water removability of 5 seconds or less, more preferably 3 seconds or less, and still more preferably 2 seconds or less. In the present specification, the water removability is a value measured by the method described in examples.

The water separation property of the rust preventive oil composition of the present embodiment is preferably 10 seconds or less, more preferably 9 seconds or less, and still more preferably 8 seconds or less. In the present specification, the water separation property is a value measured by the method described in examples.

[ method of Using rust preventive oil composition and method of processing Metal Material ]

The rust preventive oil composition of the present embodiment is applied to the surface of a metal material. The rust preventive oil composition of the present embodiment forms a coating film on the surface of a metal material by coating the metal surface, and can prevent the occurrence of rust or the like on the surface of the metal material by the formation of the coating film. Further, since the metal material has excellent water substitution and water separation properties, the metal material can be efficiently processed and manufactured. That is, the rust preventive oil composition of the present embodiment can be said to be suitable for processing and manufacturing metallic materials.

The coating may be performed by immersing the metal material in the rust inhibitive oil composition, or may be performed by blowing the rust inhibitive oil composition or other various coating methods onto the metal material, and the immersion is easy, so that it is preferable.

The metal material may be processed using a water-based processing liquid or washed with an alkali washing liquid or the like, and then the rust preventive oil composition may be applied to the surface of the metal material.

The metal to be used in the rust preventive oil composition is preferably a metal containing iron such as pure iron, steel, cast steel, alloy steel, carbon steel, milled iron, cast iron, or the like, and may be used for other metals.

The rust preventive oil composition of the present embodiment can be used without particular limitation as long as it is used for rust prevention, and is suitable for rust prevention between steps, rust prevention before and after shipment, and the like.

In the case of using the rust preventive oil composition, it may be diluted with a hydrocarbon solvent such as an aliphatic hydrocarbon solvent or an aromatic hydrocarbon solvent. In this case, the content of the rust preventive oil composition in the rust preventive oil composition dilution liquid may be appropriately adjusted as desired, and is not particularly limited, and it is usually about 0.5 mass% or more and 10.0 mass% in view of excellent rust preventive property, water substitution property and water separation property, and handleability.

Further, from the same point of view, the kinematic viscosity at 40℃of the diluted liquid of the rust inhibitive oil composition is preferably 1.0mm ² Higher than/s, more preferably 1.2mm ² Higher than/s, more preferably 1.5mm ² At least one of the values of the ratio/s is preferably 5.0mm ² Less than/s, more preferably 4.5mm ² Preferably 3.0mm or less ² And/s or less.

[ method for producing rust-preventive oil composition ]

The method for producing the rust preventive oil composition of the present embodiment mixes the following components (A-1), (A-2) and (B) to (F) so that the content of the component (B) is 2.5% by mass or more relative to the total amount of the components (A-1), (A-2) and (B) to (F).

(A-1) component: kinematic viscosity at 40℃of 6.00mm ² Solvents below/s

[ chemical 4]

(wherein R is ¹ And R is ² Each independently represents an alkyl group having 1 to 10 carbon atoms, m ¹ And m ³ Each independently represents an integer of 0 to 10, m ² Represents 0 or 1, n ¹ Is an integer of 1 to 10, m ¹ 、m ² And m ³ Sum is more than 1, m ² And n ¹ The product of (2) is 0 or 1. )

(D) The components are as follows: wax with acid value of more than 10mgKOH/g

(F) The components are as follows: full esters of polyols

In the present production method, the components (a-1), (a-2), (B) to (F), the blending amounts thereof, other components and the blending amounts thereof, and other details are the same as those described in the rust inhibitive oil composition of the present embodiment, and therefore, the description thereof will be omitted.

The order of the blending is not particularly limited, and for example, the components (A-2) and (B) to (F) may be blended in the component (A-1) in this order, or the components (B) to (F) may be blended in advance. In addition, the component (D) and the component (E) may react with each other, and the component (D) and the component (E) may be mixed in advance and then blended into the component (a).

Examples

The present invention will be further specifically described by way of examples, which are not intended to limit the scope of the present invention in any way.

The measurement method and the evaluation method in the present invention are as follows.

(1) Kinematic viscosity

Kinematic viscosity according to JIS K2283:2000, measured using a glass capillary viscometer.

(2) Base number

Base number according to JIS K2501:2003 "oil and lubricating oil-neutralization number test method" by "8. Potential difference titration method (base number hydrochloric acid method)".

(3) Acid value

Acid value according to JIS K2501:2003 "Petroleum products and lubricating oil-neutralization number test method" 7. Potential difference titration (acid value) "measurement.

(4) Water removability

GA 1 (zinc-plated steel sheet, JAC270D, 60 mm. Times.80 mm, thickness 1 mm) was immersed in ion-exchanged water 6 in a No. 5 cylinder, and after being slowly pulled up, it was confirmed that a water layer 2 was formed on the surface. Immediately, GA material 3 (fig. 1) having a water layer formed thereon was completely immersed in a No. 5 cylinder of 100mL (milliliter) to which 80mL of the rust preventive oil composition 7 of the example or comparative example was added. The time until the aqueous layer of the GA material was completely removed after impregnation was measured. The measured time is determined as follows.

A: for less than 2 seconds

B: greater than 2 seconds and less than 4 seconds

C: greater than 4 seconds and less than 5 seconds

D: for more than 5 seconds

D, judging that the product is unqualified.

(5) Water separation property

40mL of the rust preventive oil composition 7 of the example or comparative example and 40mL of ion-exchanged water 6 were added to 100mL of a No. 5 cylinder, and the liquid 8 was allowed to stand after shaking up and down for 5 seconds, and the time for which the oil/water interface 9 could be visually confirmed was measured and judged according to the following evaluation criteria (FIG. 2).

A: for less than 8 minutes

B: more than 8 minutes and less than 9 minutes

C: more than 9 minutes and less than 10 minutes

D: for more than 10 minutes

E: emulsification, unable to be measured

D and E are judged as failed.

(6) Evaluation of rust inhibitive Property (eave-resistant under-exposure)

The commercial SPCC-SD was immersed in the oil compositions of examples and comparative examples, and after 24 hours of skimming, an under-eave exposure test was performed for 3 months. In the house, rust was determined to be present at the time of occurrence of rust. The test number was 3.

A:3 months rust free

B: rust less than 3 months

B is judged as unqualified.

(test conditions)

Test environment: ISO9225:2012 corresponds to C2 to C3 (Japanese Qianli coastal portion)

Test season: 7-9 months

(7) HLB calculation method (Daviss method)

HLB is calculated by the following formula with reference to the description of surface technology, vol.50, no.12,1999, page 91.

HLB＝7+Σ(σO×nO+σOH×nOH)+Σ(σPH×nPH)

Number of groups determined according to substituents: σo=1.3 (-O-group number), σoh=1.9 (-OH group number), σhp=1.3 (CH) ₃ Number of groups, -CH ₂ -number of groups, -number of groups of ch=), number of substituents in the molecule: nO is the number of-O-, nOH is the number of-OH, nPH is CH ₃ -、-CH ₂ Total of numbers of-and-CH =

Examples 1 to 53 and comparative examples 1 to 15

The rust inhibitive oil compositions of examples 1 to 53 and comparative examples 1 to 15 were prepared by mixing the components (A-2) and the components (B) to (F) in the order of the component (A-1) according to the mixing procedures described in tables 2 to 13 using the compounds described in Table 1. The rust inhibitive performance, water substitution performance and water separation performance of each of the obtained rust inhibitive oil compositions were evaluated by the foregoing methods.

The description in the table shown below will be explained.

The values described in the table are the contents (mass%) of the components relative to the rust preventive oil composition (100 mass%).

M1+m3, m2, n1, m2×n1, which are components (B) in table 1, correspond to each symbol in the general formula (1).

The terms (A-1) to (F) refer to the total content of the components (A-1), (A-2), (B), (C), (D), (E) and (F) relative to the rust preventive oil composition (100 mass%).

The term (A-1) + (A-2) means the total content of the components (A-1) and (A-2) relative to the rust preventive oil composition (100 mass%).

(B) The + (C) means the total content of the component (B) and the component (C) relative to the rust preventive oil composition (100 mass%).

(E) The term/(F) means the mass ratio of the component (E) to the component (F).

The term (A-2) + (D) + (E) + (F) means the total content of the (A-2), the (D), the (E) and the (F) components relative to the rust preventive oil composition (100 mass%).

The kinematic viscosity at 40 ℃ is the kinematic viscosity at 40 ℃ of each rust preventive oil composition.

TABLE 1

TABLE 2

Examples 1 to 7 and comparative example 1 shown in Table 2, in the region of the upper portionAnd 3 is a rust preventive oil composition in which the component (B) is replaced. Rust preventive oil compositions of comparative examples 1 and 2 using (B-3) and (B-7) having HLB lower than 6.7, using m ² And n ¹ The water separation property of the rust inhibitive oil composition of comparative example 3 having the product (B-10) of 2 was inferior to that of the rust inhibitive oil composition of the examples.

TABLE 3

TABLE 3 Table 3

From the rust preventive oil composition of example 3, comparative examples 4 to 9 were prepared by substituting the (A-2) component and the (B) to (F) components with the (A-1) component and confirming the effect of each component. The results are shown in Table 3. If the components (a-2) and (D) to (F) are not contained, the rust inhibitive performance is inferior to that of the composition of the example, and if the components (B) and (C) are not contained, the water substitution and water separation properties are inferior to those of the composition of the example, and it is confirmed that the rust inhibitive performance, the water substitution and the water separation properties can be improved by containing all the components of the present invention.

TABLE 4

TABLE 4 Table 4

From the rust inhibitive oil composition of example 3, rust inhibitive oil compositions of examples 8 to 9 and comparative examples 10 to 11 in which the content of the component (B) was changed were prepared. The results are shown in Table 4. If the component (B) is 2 mass% or less (comparative examples 10 and 11), it can be confirmed that the water substitution property and the water separation property are deteriorated.

As shown in tables 5 and 6, with respect to example 4 (table 5) and example 5 (table 6), rust preventive oil compositions of examples and comparative examples in which the content of the component (B) was changed were also prepared. From the results, it was confirmed that the water substitution and water separation property were deteriorated if the component (B) was 2 mass% or less, regardless of the compound used as the component (B).

TABLE 5

TABLE 6

Main 6

From the rust inhibitive oil composition of example 3, rust inhibitive oil compositions of examples 14 to 18 in which the contents of the components (C) and (D) were changed were prepared. The results are shown in Table 7. It was confirmed that rust preventive oil compositions excellent in rust preventive property, water substitution property and water separation property were obtained even if the contents of the components (C) and (D) were changed.

TABLE 7

Rust inhibitive oil compositions of examples 19 to 25 in which the components (B) and (D) and the contents thereof were changed were prepared. The results are shown in Table 8. It was confirmed that rust preventive oil compositions excellent in rust preventive property, water substitution property and water separation property were obtained even if the components (B) and (D) and the content thereof were changed.

TABLE 8

Rust inhibitive oil compositions of examples 26 to 29 in which the component (E) and the content thereof were changed were prepared. The results are shown in Table 9. It was confirmed that an anti-rust oil composition having excellent anti-rust property, water substitution property and water separation property was obtained even when the component (E) and the content thereof were changed.

TABLE 9

Rust inhibitive oil compositions of examples 30 to 37 in which the component (E) and the content thereof were changed were prepared. The results are shown in Table 10. It was confirmed that an anti-rust oil composition having excellent anti-rust property, water substitution property and water separation property was obtained even when the component (E) and the content thereof were changed.

TABLE 10

Table 10

Rust inhibitive oil compositions of examples 38 and 39 in which the content of the component (F) was varied were prepared. The results are shown in Table 11. It was confirmed that a rust preventive oil composition excellent in rust preventive property, water substitution property and water separation property was obtained even if the content of the component (F) was changed.

TABLE 11

From the rust inhibitive oil composition of example 5, rust inhibitive oil compositions of examples 40 to 46 in which the base oil used as (A-2) and the content thereof were changed were prepared. The results are shown in Table 12. It was confirmed that an anti-rust oil composition excellent in anti-rust property, water substitution property and water separation property was obtained even if the component (A-2) and the content thereof were changed.

TABLE 12

Table 12

Rust preventive oil compositions of examples 47 to 53, in which the base oil used as (a-1) and the content thereof were changed, were prepared. The results are shown in Table 13. It was confirmed that an anti-rust oil composition excellent in anti-rust property, water substitution property and water separation property was obtained even if the component (A-1) and the content thereof were changed.

TABLE 13

From the above, it was confirmed that, if any component is absent and component (B) is not contained in a predetermined content, excellent rust inhibitive performance, water substitution performance and water separation performance cannot be obtained.

Claims

1. A rust preventive oil composition comprising the following components (A-1), (A-2) and (B) to (F), wherein the content of the component (B) is 2.5% by mass or more relative to the total amount of the components (A-1), (A-2) and (B) to (F),

(A-1) component: kinematic viscosity at 40℃of 6.00mm ² Solvents below/s

[ chemical 1]

Wherein R is ¹ And R is ² Each independently represents an alkyl group having 1 to 10 carbon atoms, m ¹ And m ³ Each independently represents an integer of 0 to 10, m ² Represents 0 or 1, n ¹ Represents an integer of 1 to 10, m ¹ 、m ² And m ³ Sum is more than 1, m ² And n ¹ The product of (2) is 0 or 1;

(D) The components are as follows: wax with acid value of more than 10mgKOH/g

(F) The components are as follows: full esters of polyols.

2. The rust preventive oil composition according to claim 1, wherein the total content of the components (a-1), (a-2) and (B) to (F) is 90.0% by mass or more relative to the content of the rust preventive oil composition.

3. The rust inhibitive oil composition according to claim 1 or 2, wherein the content of the component (A-2) is 0.1% by mass or more and 30.0% by mass or less relative to the rust inhibitive oil composition.

4. The rust inhibitive oil composition according to any of claims 1 to 3, wherein the total content of the component (A-1) and the component (A-2) is 60.0% by mass or more and 95.0% by mass or less relative to the rust inhibitive oil composition.

5. The rust inhibitive oil composition according to any of claims 1 to 4, wherein the content of the component (B) relative to the rust inhibitive oil composition is 10.0% by mass or less.

6. The rust inhibitive oil composition according to any one of claims 1 to 5, wherein the (C) component and the (E) component are at least 1 selected from the group consisting of alkaline earth metal sulfonates, alkaline earth metal salicylates, and alkaline earth metal phenates.

7. The rust inhibitive oil composition according to any of claims 1 to 6, wherein the content of the component (C) is 0.1% by mass or more and 10.0% by mass or less relative to the rust inhibitive oil composition.

8. The rust inhibitive oil composition according to any of claims 1 to 7, wherein the content of the component (D) is 0.1% by mass or more and 10.0% by mass or less relative to the rust inhibitive oil composition.

9. The rust inhibitive oil composition according to any of claims 1 to 8, wherein the content of the component (E) is 0.1% by mass or more and 10.0% by mass or less relative to the rust inhibitive oil composition.

10. The rust inhibitive oil composition according to any of claims 1 to 9, wherein the content of the component (F) is 1.0% by mass or more and 10.0% by mass or less relative to the rust inhibitive oil composition.

11. The rust preventive oil composition according to any one of claims 1 to 10, wherein the (a-1) component has a kinematic viscosity at 40 ℃ of 0.5mm ² And/s.

12. The rust preventive oil composition according to any one of claims 1 to 11, wherein the (a-2) component has a kinematic viscosity of 800mm at 40 ℃ ² And/s or less.

13. The rust inhibitive oil composition according to any one of claims 1 to 12, wherein the number of carbon atoms (S _C ) Number of oxygen atoms (S) _O ) Ratio [ S ] _C /S _O ]Below 4.

14. The rust inhibitive oil composition according to any one of claims 1 to 13, wherein the component (D) is an oxidized wax obtained by oxidizing a paraffin wax.

15. The rust preventive oil composition according to any one of claims 1 to 14, wherein 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.

16. The rust inhibitive oil composition according to any of claims 1 to 15, wherein the total content of the components (B) and (C) is 2.6% by mass or more and 20.0% by mass or less relative to the rust inhibitive oil composition.

17. The rust inhibitive oil composition according to any one of claims 1 to 16, wherein the mass ratio of the component (E) to the component (F) ([ (E)/(F) ]) is 0.01 to 1.00.

18. The rust inhibitive oil composition according to any of claims 1 to 17, wherein the total of the components (A-2), (D), (E) and (F) is 5.0% by mass to 50.0% by mass based on the content of the rust inhibitive oil composition.

19. The rust inhibitive oil composition according to any of claims 1 to 18, wherein a kinematic viscosity at 40 ℃ is 1.0mm ² Above/s and 35mm ² And/s or less.

20. A method for producing a rust preventive oil composition, comprising mixing the following components (A-1), (A-2) and (B) to (F) so that the content of the component (B) is 2.5% by mass or more relative to the total amount of the components (A-1), (A-2) and (B) to (F),

(A-1) component: kinematic viscosity at 40℃of 6.00mm ² Solvents below/s

[ chemical 2]

(D) The components are as follows: wax with acid value of more than 10mgKOH/g

(F) The components are as follows: full esters of polyols.