JPWO2019188809A1 - Rust-preventive oil composition and its manufacturing method - Google Patents
Rust-preventive oil composition and its manufacturing method Download PDFInfo
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- JPWO2019188809A1 JPWO2019188809A1 JP2020509975A JP2020509975A JPWO2019188809A1 JP WO2019188809 A1 JPWO2019188809 A1 JP WO2019188809A1 JP 2020509975 A JP2020509975 A JP 2020509975A JP 2020509975 A JP2020509975 A JP 2020509975A JP WO2019188809 A1 JPWO2019188809 A1 JP WO2019188809A1
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- Prior art keywords
- rust preventive
- oil composition
- preventive oil
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
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- 238000012545 processing Methods 0.000 description 1
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- 239000001294 propane Substances 0.000 description 1
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- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- 229960005078 sorbitan sesquioleate Drugs 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- CQTBQILMJBCTRS-UHFFFAOYSA-N tetradecane-1,1-diol Chemical compound CCCCCCCCCCCCCC(O)O CQTBQILMJBCTRS-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- 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
- C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
- C10M101/02—Petroleum fractions
-
- 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
-
- 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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Lubricants (AREA)
Abstract
（Ａ）引火点が１００℃未満の溶剤と、（Ｂ）引火点が１００℃以上であって、４０℃動粘度が７ｍｍ２／ｓ以上１２０ｍｍ２／ｓ以下である基油と、（Ｃ）防錆剤と、を含有し、４０℃動粘度が０．５ｍｍ２／ｓ以上３．２ｍｍ２／ｓ以下である、防錆油組成物及びその製造方法によって、優れた防錆油膜の薄膜性と防錆性とを両立する防錆油組成物及びその製造方法を提供することができる。(A) A solvent having a flammable point of less than 100 ° C., (B) a base oil having a flammable point of 100 ° C. or higher and a kinematic viscosity of 40 ° C. of 7 mm2 / s or more and 120 mm2 / s or less, and (C) rust prevention. Excellent thin film property and rust preventive property of rust preventive oil film depending on the rust preventive oil composition containing the agent and having a kinematic viscosity at 40 ° C. of 0.5 mm2 / s or more and 3.2 mm2 / s or less and the method for producing the same. It is possible to provide a rust preventive oil composition and a method for producing the same.
Description
本発明は、防錆油組成物及びその製造方法に関する。 The present invention relates to a rust preventive oil composition and a method for producing the same.
鋼板等の金属材料は、複数の工程を経て中間製品、最終成型品に加工され、通常、金属表面の酸化劣化を防ぐために防錆油が塗布される。その際、金属材料表面の防錆油膜を厚くするほど防錆性は高まるものの、防錆油膜を厚くすると、防錆油に由来するベタつきの発生、コストの増加等の問題が発生する。一方、防錆油膜を薄くすると、防錆油膜によって被覆されない部分が生じて、十分な防錆性が得られない場合がある。したがって、防錆油には、薄い防錆油膜であっても、優れた防錆性を発現する性能が求められている。 A metal material such as a steel plate is processed into an intermediate product and a final molded product through a plurality of steps, and usually, rust preventive oil is applied to prevent oxidative deterioration of the metal surface. At that time, the thicker the rust-preventive oil film on the surface of the metal material, the higher the rust-preventive property. However, if the rust-preventive oil film is thickened, problems such as stickiness due to the rust-preventive oil and an increase in cost occur. On the other hand, if the rust preventive oil film is thinned, a portion not covered by the rust preventive oil film may occur, and sufficient rust preventive properties may not be obtained. Therefore, the rust preventive oil is required to have excellent rust preventive properties even if it is a thin rust preventive oil film.
特許文献１には、環境負荷が懸念されるバリウムを実質的に含有しない加工兼用防錆油組成物として、特定の基油、脂肪酸エステル、過塩基性金属スルホネート、中性金属スルホネートを配合してなる組成物が開示されている。 Patent Document 1 contains a specific base oil, fatty acid ester, perbasic metal sulfonate, and neutral metal sulfonate as a processing and rust preventive oil composition that does not substantially contain barium, which may have an environmental load. The composition is disclosed.
特許文献１に開示されている加工兼用防錆油組成物は、バリウムを実質的に含有せず、従来の防錆油組成物に比較して脱脂性に優れ、かつ防錆性及び潤滑性にも優れるという特徴を有する。しかしながら、特許文献１は、上記のような、薄い防錆油膜であっても、優れた防錆性を発現させるという観点から検討が行われておらず、防錆油膜の薄膜性と防錆性との両立においては、更なる改善の余地がある。 The processing-combined rust preventive oil composition disclosed in Patent Document 1 does not substantially contain barium, has excellent degreasing properties as compared with conventional rust preventive oil compositions, and has rust preventive properties and lubricity. Also has the characteristic of being excellent. However, Patent Document 1 has not been studied from the viewpoint of exhibiting excellent rust preventive properties even with a thin rust preventive oil film as described above, and the thin film properties and rust preventive properties of the rust preventive oil film have not been studied. There is room for further improvement in terms of compatibility with.
本発明は、上記問題点に鑑みてなされたものであって、優れた防錆油膜の薄膜性と防錆性とを両立する防錆油組成物及びその製造方法を提供することを目的とする。 The present invention has been made in view of the above problems, and an object of the present invention is to provide a rust preventive oil composition having both excellent thin film properties and rust preventive properties of a rust preventive oil film and a method for producing the same. ..
本発明者らは、鋭意研究を重ねた結果、特定の溶剤、特定の基油及び防錆剤を含有し、４０℃動粘度が特定範囲に調整された防錆油組成物により、上記の課題を解決できることを見出し、本発明を完成するに至った。
すなわち、本発明は、下記［１］及び［２］を提供するものである。
［１］（Ａ）引火点が１００℃未満の溶剤と、（Ｂ）引火点が１００℃以上であって、４０℃動粘度が７ｍｍ２／ｓ以上１２０ｍｍ２／ｓ以下である基油と、（Ｃ）防錆剤と、を含有し、４０℃動粘度が０．５ｍｍ２／ｓ以上３．２ｍｍ２／ｓ以下である、防錆油組成物。
［２］上記［１］に記載の防錆油組成物を製造する方法であって、（Ａ）引火点が１００℃未満の溶剤と、（Ｂ）引火点が１００℃以上であって、４０℃動粘度が７ｍｍ２／ｓ以上１２０ｍｍ２／ｓ以下である基油と、（Ｃ）防錆剤と、を混合する、防錆油組成物の製造方法。As a result of diligent research, the present inventors have made the above-mentioned problems with a rust preventive oil composition containing a specific solvent, a specific base oil and a rust preventive agent, and the kinematic viscosity at 40 ° C. is adjusted to a specific range. We have found that we can solve the problem, and have completed the present invention.
That is, the present invention provides the following [1] and [2].
[1] (A) A solvent having a flash point of less than 100 ° C., and (B) a base oil having a flash point of 100 ° C. or higher and a 40 ° C. kinematic viscosity of 7 mm 2 / s or more and 120 mm 2 / s or less. (C) A rust preventive oil composition containing a rust preventive agent and having a kinematic viscosity at 40 ° C. of 0.5 mm 2 / s or more and 3.2 mm 2 / s or less.
[2] The method for producing the rust preventive oil composition according to the above [1], wherein (A) a solvent having an ignition point of less than 100 ° C. and (B) an ignition point of 100 ° C. or higher, 40. A method for producing a rust preventive oil composition, which comprises mixing a base oil having a kinematic viscosity at ° C. of 7 mm 2 / s or more and 120 mm 2 / s or less and (C) a rust preventive agent.
本発明によれば、優れた防錆油膜の薄膜性と防錆性とを両立する防錆油組成物及びその製造方法を提供することができる。 According to the present invention, it is possible to provide a rust preventive oil composition having both excellent thin film properties and rust preventive properties of a rust preventive oil film and a method for producing the same.
以下、本実施形態について説明する。なお、本明細書中において、数値範囲の記載に関する「以上」、「以下」、「未満」、「超」の数値は任意に組み合わせできる数値である。 Hereinafter, this embodiment will be described. In this specification, the numerical values of "greater than or equal to", "less than or equal to", "less than", and "exceeding" regarding the description of the numerical range are numerical values that can be arbitrarily combined.
［防錆油組成物］
本実施形態の防錆油組成物は、
（Ａ）引火点が１００℃未満の溶剤と（以下、「（Ａ）溶剤」ともいう）、
（Ｂ）引火点が１００℃以上であって、４０℃動粘度が７ｍｍ２／ｓ以上１２０ｍｍ２／ｓ以下である基油と（以下、「（Ｂ）基油」ともいう）、
（Ｃ）防錆剤と、
を含有し、４０℃動粘度が０．５ｍｍ２／ｓ以上３．２ｍｍ２／ｓ以下である、防錆油組成物である。[Rust preventive oil composition]
The rust preventive oil composition of this embodiment is
(A) A solvent having a flash point of less than 100 ° C. (hereinafter, also referred to as "(A) solvent"),
(B) A base oil having a flash point of 100 ° C. or higher and a kinematic viscosity of 40 ° C. of 7 mm 2 / s or more and 120 mm 2 / s or less (hereinafter, also referred to as “(B) base oil”).
(C) Rust inhibitor and
A rust preventive oil composition containing, and having a kinematic viscosity at 40 ° C. of 0.5 mm 2 / s or more and 3.2 mm 2 / s or less.
＜防錆油組成物の４０℃動粘度＞
本実施形態の防錆油組成物の４０℃動粘度は、０．５ｍｍ２／ｓ以上３．２ｍｍ２／ｓ以下である。
本明細書において、４０℃動粘度は、ＪＩＳ Ｋ２２８３：２０００に準拠して測定した値を意味する。
本実施形態の防錆油組成物の４０℃動粘度は、０．５ｍｍ２／ｓ以上であり、好ましくは１．０ｍｍ２／ｓ以上、より好ましくは１．２ｍｍ２／ｓ以上、特に好ましくは１．４ｍｍ２／ｓ以上である。一方、本実施形態の防錆油組成物の４０℃動粘度は、３．２ｍｍ２／ｓ以下であり、好ましくは２．８ｍｍ２／ｓ以下、より好ましくは２．５ｍｍ２／ｓ以下、特に好ましくは２．２ｍｍ２／ｓ以下である。
本実施形態の防錆油組成物の４０℃動粘度が、上記下限値以上であると、塗油後の油切中における、防錆成分の過剰な流れ落ちを防止し、少量の基油及び防錆剤であっても、優れた防錆性を発現するのに十分な防錆油膜を形成することができる。また、本実施形態の防錆油組成物の４０℃動粘度が、上記上限値以下であると、薄膜性に優れた防錆油膜を形成することができる。
一方、防錆油組成物の４０℃動粘度が、０．５ｍｍ２／ｓ未満であると、油切中に、防錆成分が過剰に流れ落ち、優れた防錆性を発現するのに十分な防錆油膜が形成されない場合がある。また、防錆油組成物の４０℃動粘度が、３．２ｍｍ２／ｓを超えると、防錆油膜が厚くなりすぎ、ベタつきの発生及びコストアップを招く場合がある。
以下、本実施形態の防錆油組成物が含有する各成分について説明する。<40 ° C kinematic viscosity of rust preventive oil composition>
The 40 ° C. kinematic viscosity of the rust preventive oil composition of the present embodiment is 0.5 mm 2 / s or more and 3.2 mm 2 / s or less.
In the present specification, 40 ° C. kinematic viscosity means a value measured according to JIS K2283: 2000.
The 40 ° C. kinematic viscosity of the rust preventive oil composition of the present embodiment is 0.5 mm 2 / s or more, preferably 1.0 mm 2 / s or more, more preferably 1.2 mm 2 / s or more, and particularly preferably. It is 1.4 mm 2 / s or more. On the other hand, the 40 ° C. kinematic viscosity of the rust preventive oil composition of the present embodiment is 3.2 mm 2 / s or less, preferably 2.8 mm 2 / s or less, more preferably 2.5 mm 2 / s or less, particularly. It is preferably 2.2 mm 2 / s or less.
When the 40 ° C. kinematic viscosity of the rust preventive oil composition of the present embodiment is at least the above lower limit value, excessive runoff of the rust preventive component during oil drainage after oiling is prevented, and a small amount of base oil and rust preventive are prevented. Even an agent can form a rust-preventive oil film sufficient to exhibit excellent rust-preventive properties. Further, when the 40 ° C. kinematic viscosity of the rust preventive oil composition of the present embodiment is not more than the above upper limit value, a rust preventive oil film having excellent thin film properties can be formed.
On the other hand, when the 40 ° C. kinematic viscosity of the rust preventive oil composition is less than 0.5 mm 2 / s, the rust preventive component excessively flows down during oil drainage, which is sufficient to exhibit excellent rust preventive properties. Rust oil film may not be formed. If the kinematic viscosity of the rust preventive oil composition at 40 ° C. exceeds 3.2 mm 2 / s, the rust preventive oil film may become too thick, resulting in stickiness and cost increase.
Hereinafter, each component contained in the rust preventive oil composition of the present embodiment will be described.
＜（Ａ）溶剤＞
本実施形態の防錆油組成物は、（Ａ）引火点が１００℃未満の溶剤を含有するものである。
（Ａ）溶剤は、防錆油組成物に含有される基油及び防錆剤を希釈して、防錆油組成物の塗油を容易にすると共に均一な防錆油膜を形成する役割を担う。（Ａ）溶剤は、防錆油組成物を塗油した後に乾燥除去され、金属材料の表面には主に基油と防錆剤からなる防錆油膜が形成される。<(A) Solvent>
The rust preventive oil composition of the present embodiment contains (A) a solvent having a flash point of less than 100 ° C.
(A) The solvent plays a role of diluting the base oil and the rust preventive agent contained in the rust preventive oil composition to facilitate the oiling of the rust preventive oil composition and to form a uniform rust preventive oil film. .. The solvent (A) is removed by drying after applying the rust preventive oil composition, and a rust preventive oil film mainly composed of a base oil and a rust preventive agent is formed on the surface of the metal material.
本明細書において、引火点は、ＪＩＳ Ｋ２２６５：２００７に記載の方法に準拠して測定した値である。
（Ａ）溶剤の引火点は、１００℃未満であり、好ましくは９０℃以下、より好ましくは８０℃以下、更に好ましくは７０℃以下、特に好ましくは５０℃以下である。一方、（Ａ）溶剤の引火点は、好ましくは３０℃以上、より好ましくは３５℃以上、特に好ましくは４０℃以上である。
（Ａ）溶剤の引火点が１００℃未満であると、速乾性に優れるため、油切中における防錆成分の過剰な流れ落ちを防止し、少量の基油及び防錆剤であっても、優れた防錆性を発現するのに十分な防錆油膜を形成することができる。また、（Ａ）溶剤の引火点が、上記下限値以上であると、（Ａ）溶剤の揮発性が高まりすぎることなく、均一な膜厚を有する防錆油膜を形成することができる。また、（Ａ）溶剤の引火点が上記上限値以下であると、より速乾性に優れる防錆油組成物となり、優れた作業性が得られる。
一方、（Ａ）溶剤の引火点が１００℃以上であると、乾燥速度が遅くなるため、油切中に、防錆成分が過剰に流れ落ち、優れた防錆性を発現するのに十分な防錆油膜が形成されない場合がある。In the present specification, the flash point is a value measured according to the method described in JIS K2265: 2007.
The flash point of the solvent (A) is less than 100 ° C., preferably 90 ° C. or lower, more preferably 80 ° C. or lower, still more preferably 70 ° C. or lower, and particularly preferably 50 ° C. or lower. On the other hand, the flash point of the solvent (A) is preferably 30 ° C. or higher, more preferably 35 ° C. or higher, and particularly preferably 40 ° C. or higher.
(A) When the ignition point of the solvent is less than 100 ° C, the quick-drying property is excellent, so that excessive run-off of the rust preventive component during oil drainage is prevented, and even a small amount of base oil and rust preventive is excellent. A rust-preventive oil film sufficient to exhibit rust-preventive properties can be formed. Further, when the flash point of the solvent (A) is at least the above lower limit value, the rust preventive oil film having a uniform film thickness can be formed without the volatility of the solvent (A) becoming too high. Further, when the flash point of the solvent (A) is not more than the above upper limit value, the rust preventive oil composition having more excellent quick-drying property can be obtained, and excellent workability can be obtained.
On the other hand, if the flash point of the solvent (A) is 100 ° C. or higher, the drying speed becomes slow, so that the rust preventive component flows down excessively during oil drainage, and sufficient rust preventive property is exhibited. An oil film may not be formed.
（Ａ）溶剤の具体例としては、ｐ−キシレン（引火点２７℃）、ｏ−キシレン（引火点３３℃）、ｍ−キシレン（引火点２８℃）、スチレン（引火点３２℃）、エチルベンゼン（引火点２５℃）、ブテンオリゴマー（引火点４９℃）、引火点が１００℃未満のイソパラフィン、引火点が１００℃未満の軽油等の炭化水素類；１−プロピルアルコール（引火点２５℃）、イソブチルアルコール（引火点３０℃）、１−ブタノール（引火点３７℃）、２−ブタノール（引火点２１℃）等のアルコール類；酢酸イソブチル（引火点２０℃）、酢酸ブチル（引火点２４℃）、酢酸アミル（引火点３２℃）等の酢酸エステル類；ジイソブチルケトン（引火点５０℃）、シクロヘキサノン（引火点４２℃）、４−ヒドロキシ−４−メチル−２−ペンタノン（引火点５８℃）等のケトン類；エチレングリコールモノメチルエーテル（引火点４１℃）、エチレングリコールモノエチルエーテル（引火点４３℃）、エチレングリコールモノ−ノルマルブチルエーテル（引火点６４℃）、エチレングリコールモノプロピルエーテル（７１℃）、エチレングリコールモノターシャリーブチルエーテル（引火点５５℃）、酢酸２−メトキシメチル（引火点５２℃）、酢酸２−エトキシエチル（引火点５７℃）等のセロソルブ類；３−メトキシ−３−メチルブタノール（引火点６７℃）、３−メトキシ−３−メチルブチルアセテート（引火点７５．５℃）、１−メトキシ−２−プロパノール（引火点３２℃）、１−メトキシプロピル−２−アセテート（引火点４７℃）、１−エトキシ−２−プロパノール（引火点３９℃）、プロピレングリコールモノプロピルエーテル（引火点４８．５℃）、３−メトキシブチルアセテート（引火点６２．５℃）、３−エトキシプロピオン酸エチル（引火点５９℃）、プロピレングリコールモノメチルエーテルプロピオネート（引火点５６℃）等のグリコールエステル類；乳酸エチル（引火点４６℃）等が挙げられる。これらの中でも、経済性及び取り扱い性の観点から、炭化水素類が好ましく、イソパラフィン及び軽油からなる群から選択される１種以上がより好ましい。
なお、重合体、混合物等である（Ａ）溶剤については、上記括弧内に記載された引火点は、その代表値を意味する。
（Ａ）溶剤は、１種を単独で又は複数種を組み合わせて用いてもよい。
イソパラフィンとしては、引火点が１００℃未満であるものであれば特に制限はない。イソパラフィンの炭素数は、好ましくは６以上、より好ましくは８以上、特に好ましくは１０以上である。一方、イソパラフィンの炭素数は、好ましくは３６以下、より好ましくは２８以下、更に好ましくは２０以下、より更に好ましくは１６以下、特に好ましくは１２以下である。Specific examples of the solvent (A) include p-xylene (flash point 27 ° C.), o-xylene (flash point 33 ° C.), m-xylene (flash point 28 ° C.), styrene (flash point 32 ° C.), and ethylbenzene (flammable point 32 ° C.). Flash points 25 ° C), butene oligomers (flash point 49 ° C), isoparaffins with a flash point of less than 100 ° C, light oils with a flash point of less than 100 ° C, and other hydrocarbons; 1-propyl alcohol (flash point 25 ° C), isobutyl Alcohols such as alcohol (flash point 30 ° C.), 1-butanol (flash point 37 ° C.), 2-butanol (flash point 21 ° C.); isobutyl acetate (flash point 20 ° C.), butyl acetate (flash point 24 ° C.), Acetate esters such as amyl acetate (flash point 32 ° C); diisobutylketone (flash point 50 ° C), cyclohexanone (flash point 42 ° C), 4-hydroxy-4-methyl-2-pentanone (flash point 58 ° C), etc. Ketones; ethylene glycol monomethyl ether (flash point 41 ° C), ethylene glycol monoethyl ether (flash point 43 ° C), ethylene glycol mono-normal butyl ether (flash point 64 ° C), ethylene glycol monopropyl ether (71 ° C), ethylene Cellosolves such as glycol monotersial butyl ether (flash point 55 ° C), 2-methoxymethyl acetate (flash point 52 ° C), 2-ethoxyethyl acetate (flash point 57 ° C); 3-methoxy-3-methylbutanol (flash point 57 ° C) Point 67 ° C), 3-methoxy-3-methylbutyl acetate (flash point 75.5 ° C), 1-methoxy-2-propanol (flash point 32 ° C), 1-methoxypropyl-2-acetate (flash point 47 ° C) ), 1-ethoxy-2-propanol (flash point 39 ° C), propylene glycol monopropyl ether (flash point 48.5 ° C), 3-methoxybutyl acetate (flash point 62.5 ° C), ethyl 3-ethoxypropionate (Flash point 59 ° C.), glycol esters such as propylene glycol monomethyl ether propionate (flash point 56 ° C.); ethyl lactate (flash point 46 ° C.) and the like can be mentioned. Among these, hydrocarbons are preferable from the viewpoint of economy and handleability, and one or more selected from the group consisting of isoparaffin and light oil is more preferable.
Regarding the solvent (A) such as a polymer or a mixture, the flash point described in the above parentheses means a representative value thereof.
As the solvent (A), one type may be used alone or a plurality of types may be used in combination.
The isoparaffin is not particularly limited as long as it has a flash point of less than 100 ° C. The number of carbon atoms of isoparaffin is preferably 6 or more, more preferably 8 or more, and particularly preferably 10 or more. On the other hand, the carbon number of isoparaffin is preferably 36 or less, more preferably 28 or less, still more preferably 20 or less, still more preferably 16 or less, and particularly preferably 12 or less.
本実施形態の防錆油組成物中における（Ａ）溶剤の含有量は、防錆油組成物全量基準で、好ましくは７０質量％以上、より好ましくは７５質量％以上、特に好ましくは８０質量％以上である。一方、（Ａ）溶剤の含有量は、防錆油組成物全量基準で、好ましくは９５質量％以下、より好ましくは９３質量％以下、特に好ましくは９１質量％以下である。
（Ａ）溶剤の含有量が、上記下限値以上であると、防錆成分の濃度が適度となり、薄膜性に優れた防錆油膜を形成することができる。一方、（Ａ）溶剤の含有量が、上記上限値以下であると、防錆成分の濃度が低くなりすぎることなく、優れた防錆性を発現するのに十分な防錆油膜を形成することができる。The content of the solvent (A) in the rust preventive oil composition of the present embodiment is preferably 70% by mass or more, more preferably 75% by mass or more, and particularly preferably 80% by mass, based on the total amount of the rust preventive oil composition. That is all. On the other hand, the content of the solvent (A) is preferably 95% by mass or less, more preferably 93% by mass or less, and particularly preferably 91% by mass or less, based on the total amount of the rust preventive oil composition.
When the content of the solvent (A) is at least the above lower limit value, the concentration of the rust preventive component becomes appropriate, and a rust preventive oil film having excellent thin film properties can be formed. On the other hand, when the content of the solvent (A) is not more than the above upper limit value, a rust preventive oil film sufficient to exhibit excellent rust preventive properties is formed without the concentration of the rust preventive component becoming too low. Can be done.
＜（Ｂ）基油＞
本実施形態の防錆油組成物が含有する（Ｂ）基油は、引火点が１００℃以上であって、４０℃動粘度が７ｍｍ２／ｓ以上１２０ｍｍ２／ｓ以下である。
（Ｂ）基油は、防錆油組成物を塗油した後に、金属材料の表面に保持され、（Ｃ）防錆剤と共に防錆油膜を形成するものである。<(B) Base oil>
The base oil (B) contained in the rust preventive oil composition of the present embodiment has a flash point of 100 ° C. or higher and a kinematic viscosity of 40 ° C. of 7 mm 2 / s or more and 120 mm 2 / s or less.
The (B) base oil is retained on the surface of a metal material after the rust preventive oil composition is applied, and forms a rust preventive oil film together with the (C) rust preventive agent.
（Ｂ）基油の引火点は、１００℃以上であり、好ましくは１２０℃以上、より好ましくは１７０℃以上、特に好ましくは２００℃以上である。一方、（Ｂ）基油の引火点は、好ましくは３００℃以下、より好ましくは２５０℃以下、特に好ましくは２２０℃以下である。
（Ｂ）基油の引火点が、１００℃以上であると、（Ｂ）基油の揮発性が抑制され、長期防錆性に優れたものとなる。また、（Ｂ）基油の引火点が、上記上限値以下であると、（Ｂ）基油の取り扱い性に優れたものとなる。
一方、（Ｂ）基油の引火点が、１００℃未満であると、（Ｂ）基油の揮発性が高くなりすぎ、防錆性の低下が速くなる場合がある。The flash point of the base oil (B) is 100 ° C. or higher, preferably 120 ° C. or higher, more preferably 170 ° C. or higher, and particularly preferably 200 ° C. or higher. On the other hand, the flash point of the base oil (B) is preferably 300 ° C. or lower, more preferably 250 ° C. or lower, and particularly preferably 220 ° C. or lower.
When the flash point of the (B) base oil is 100 ° C. or higher, the volatility of the (B) base oil is suppressed, and the long-term rust prevention property is excellent. Further, when the flash point of the (B) base oil is not more than the above upper limit value, the handleability of the (B) base oil is excellent.
On the other hand, if the flash point of the (B) base oil is less than 100 ° C., the volatility of the (B) base oil becomes too high, and the rust preventive property may decrease rapidly.
（Ｂ）基油の４０℃動粘度は、７ｍｍ２／ｓ以上であり、好ましくは１５ｍｍ２／ｓ以上、より好ましくは２０ｍｍ２／ｓ以上、特に好ましくは２５ｍｍ２／ｓ以上である。一方、（Ｂ）基油の４０℃動粘度は、１２０ｍｍ２／ｓ以下であり、好ましくは１００ｍｍ２／ｓ以下、より好ましくは８０ｍｍ２／ｓ以下、さらに好ましくは６０ｍｍ２／ｓ以下、特に好ましくは３５ｍｍ２／ｓ以下である。
（Ｂ）基油の４０℃動粘度が、上記下限値以上であると、優れた防錆性を発現するのに十分な防錆油膜を形成することができる。また、（Ｂ）基油の４０℃動粘度が、上記上限値以下であると、均一な膜厚を有する防錆油膜を形成することができる。
一方、（Ｂ）基油の４０℃動粘度が、７ｍｍ２／ｓ未満であると、（Ｂ）基油の粘度が低くなりすぎ、優れた防錆性を発現するのに十分な防錆油膜を形成できない場合がある。また、（Ｂ）基油の４０℃動粘度が、１２０ｍｍ２／ｓを超えると、（Ｂ）基油の粘度が高くなりすぎ、防錆油膜が正常に形成されないため、防錆油膜に厚みムラが生じたり、ベタつきが発生したりする場合がある。(B) The kinematic viscosity of the base oil at 40 ° C. is 7 mm 2 / s or more, preferably 15 mm 2 / s or more, more preferably 20 mm 2 / s or more, and particularly preferably 25 mm 2 / s or more. On the other hand, the kinematic viscosity of (B) base oil at 40 ° C. is 120 mm 2 / s or less, preferably 100 mm 2 / s or less, more preferably 80 mm 2 / s or less, still more preferably 60 mm 2 / s or less, particularly preferably. Is 35 mm 2 / s or less.
(B) When the 40 ° C. kinematic viscosity of the base oil is at least the above lower limit value, a rust preventive oil film sufficient to exhibit excellent rust preventive properties can be formed. Further, when the 40 ° C. kinematic viscosity of the base oil (B) is not more than the above upper limit value, a rust preventive oil film having a uniform film thickness can be formed.
On the other hand, if the kinematic viscosity of (B) base oil at 40 ° C. is less than 7 mm 2 / s, the viscosity of (B) base oil becomes too low, and a rust preventive oil film sufficient to exhibit excellent rust preventive properties. May not be formed. Further, when the 40 ° C. kinematic viscosity of (B) base oil exceeds 120 mm 2 / s, the viscosity of (B) base oil becomes too high and the rust preventive oil film is not formed normally, so that the thickness of the rust preventive oil film becomes uneven. May occur or stickiness may occur.
（Ｂ）基油は、上記引火点及び４０℃動粘度を充足するものであれば、特に限定されることなく、鉱油、合成油等を使用することができる。
鉱油としては、パラフィン基系原油、中間基系原油、又はナフテン基系原油を常圧蒸留した残渣油、又は常圧蒸留の残渣油を減圧蒸留して得られる留出油、さらにはこれらを常法に従って精製することによって得られる精製油、例えば、溶剤精製油、水添精製油、脱ロウ処理油、白土処理油等が挙げられる。また、鉱油として、天然ガスからフィッシャー・トロプシュ法等により製造されるワックス（ＧＴＬワックス（Ｇａｓ Ｔｏ Ｌｉｑｕｉｄｓ ＷＡＸ））を異性化することで得られる鉱油（ＧＴＬ）を用いてもよい。
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。
（Ｂ）基油は、１種を単独で又は複数種を組み合わせて用いてもよい。The base oil (B) is not particularly limited as long as it satisfies the above flash point and 40 ° C. kinematic viscosity, and mineral oil, synthetic oil and the like can be used.
As the mineral oil, a paraffin-based crude oil, an intermediate-based crude oil, a residual oil obtained by atmospheric-distilling a naphthen-based crude oil, a distillate obtained by vacuum-distilling a residual oil of atmospheric-pressure distillation, and further, these are usually used. Examples thereof include refined oils obtained by refining according to a method, for example, solvent refined oils, hydrogenated refined oils, dewaxed oils, and white clay treated oils. Further, as the mineral oil, mineral oil (GTL) obtained by isomerizing a wax (GTL wax (Gas To Liquids WAX)) produced from natural gas by the Fischer-Tropsch method or the like may be used.
Synthetic oils include poly-α-olefins, α-olefin copolymers, polybutenes, alkylbenzenes, polyol esters, dibasic acid esters, polyoxyalkylene glycols, polyoxyalkylene glycol esters, polyoxyalkylene glycol ethers, hindered esters, and silicones. Examples include oil.
(B) As the base oil, one type may be used alone or a plurality of types may be used in combination.
本実施形態の防錆油組成物中における（Ｂ）基油の含有量は、防錆油組成物全量基準で、好ましくは０．５質量％以上、より好ましくは１質量％以上、特に好ましくは２質量％以上である。一方、（Ｂ）基油の含有量は、防錆油組成物全量基準で、好ましくは１０質量％以下、より好ましくは８質量％以下、特に好ましくは６質量％以下である。
（Ｂ）基油の含有量が、上記下限値以上であると、優れた防錆性を発現するのに十分な防錆油膜を形成することができる。一方、（Ｂ）基油の含有量が、上記上限値以下であると、薄膜性に優れた防錆油膜を形成することができる。The content of the (B) base oil in the rust preventive oil composition of the present embodiment is preferably 0.5% by mass or more, more preferably 1% by mass or more, particularly preferably 1% by mass or more, based on the total amount of the rust preventive oil composition. 2% by mass or more. On the other hand, the content of the base oil (B) is preferably 10% by mass or less, more preferably 8% by mass or less, and particularly preferably 6% by mass or less, based on the total amount of the rust preventive oil composition.
When the content of the base oil (B) is at least the above lower limit value, a rust preventive oil film sufficient to exhibit excellent rust preventive properties can be formed. On the other hand, when the content of the (B) base oil is not more than the above upper limit value, a rust preventive oil film having excellent thin film properties can be formed.
本実施形態の防錆油組成物は、発明の目的に反しない範囲で、４０℃動粘度が１２０ｍｍ２／ｓを超える基油を含有していてもよいが、均一な膜厚を有する防錆油膜を形成する観点からは、含有しないことが好ましい。
本実施形態の防錆油組成物が１２０ｍｍ２／ｓを超える４０℃動粘度を有する基油を含有する場合、その含有量は、防錆油組成物全量基準で、好ましくは８質量％以下、より好ましくは４質量％以下、特に好ましくは１質量％以下である。
また、本実施形態の防錆油組成物は、発明の目的に反しない範囲で、４０℃動粘度が７ｍｍ２／ｓ未満である基油を含有していてもよいが、十分な防錆油膜を形成する観点からは、含有しないことが好ましい。
本実施形態の防錆油組成物が７ｍｍ２／ｓ未満の４０℃動粘度を有する基油を含有する場合、その含有量は、防錆油組成物全量基準で、好ましくは８質量％以下、より好ましくは４質量％以下、特に好ましくは１質量％以下である。 The rust preventive oil composition of the present embodiment may contain a base oil having a kinematic viscosity of more than 120 mm 2 / s at 40 ° C. within a range not contrary to the object of the invention, but has a uniform film thickness. From the viewpoint of forming an oil film, it is preferable not to contain it.
When the rust preventive oil composition of the present embodiment contains a base oil having a kinematic viscosity of 40 ° C. exceeding 120 mm 2 / s, the content thereof is preferably 8% by mass or less based on the total amount of the rust preventive oil composition. It is more preferably 4% by mass or less, and particularly preferably 1% by mass or less.
Further, the rust preventive oil composition of the present embodiment may contain a base oil having a 40 ° C. kinematic viscosity of less than 7 mm 2 / s within a range not contrary to the object of the invention, but a sufficient rust preventive oil film may be contained. From the viewpoint of forming the above, it is preferable not to contain it.
When the rust preventive oil composition of the present embodiment contains a base oil having a kinematic viscosity of less than 7 mm 2 / s at 40 ° C., the content thereof is preferably 8% by mass or less based on the total amount of the rust preventive oil composition. It is more preferably 4% by mass or less, and particularly preferably 1% by mass or less.
＜（Ｃ）防錆剤＞
（Ｃ）防錆剤としては、金属スルホネート、アルキルベンゼンスルホネート、ジノニルナフタレンスルホネート、有機亜リン酸エステル、有機リン酸エステル、有機スルホン酸金属塩、有機リン酸金属塩、アルケニルコハク酸エステル、多価アルコールエステル、ベンゾトリアゾール系化合物等が挙げられる。これらの中でも、溶解性及び防錆性の観点から、金属スルホネートが好ましい。ここで、金属スルホネートとは各種スルホン酸の金属塩をいう。
金属スルホネートを構成するスルホン酸としては、芳香族石油スルホン酸、アルキルスルホン酸、アリールスルホン酸、アルキルアリールスルホン酸等が挙げられ、より具体的には、ドデシルベンゼンスルホン酸、ジラウリルセチルベンゼンスルホン酸、パラフィンワックス置換ベンゼンスルホン酸、ポリオレフィン置換ベンゼンスルホン酸、ポリイソブチレン置換ベンゼンスルホン酸、ナフタレンスルホン酸等が挙げられる。
金属スルホネートを構成する金属としては、ナトリウム、マグネシウム、カルシウム、亜鉛等が挙げられ、これらの中でも、防錆性及び入手容易性の観点から、カルシウムが好ましい。
金属スルホネートとしては、過塩基性金属スルホネート、中性金属スルホネート等が挙げられ、防錆性及び入手容易性の観点から、過塩基性カルシウムスルホネート、中性カルシウムスルホネートが好ましい。
（Ｃ）防錆剤は、１種を単独で又は複数種を組み合わせて用いてもよいが、過塩基性金属スルホネートと中性金属スルホネートとを併用することが好ましい。過塩基性金属スルホネートと中性金属スルホネートとを併用することにより、一方のみを使用する場合よりも優れた防錆性を奏するという相乗効果が得られる。<(C) Rust inhibitor>
(C) Examples of the rust preventive include metal sulfonate, alkylbenzene sulfonate, dinonylnaphthalene sulfonate, organic phosphite ester, organic phosphate ester, organic sulfonic acid metal salt, organic phosphate metal salt, alkenyl succinate, and polyvalent. Examples thereof include alcohol esters and benzotriazole compounds. Among these, metal sulfonate is preferable from the viewpoint of solubility and rust prevention. Here, the metal sulfonate refers to a metal salt of various sulfonic acids.
Examples of the sulfonic acid constituting the metal sulfonate include aromatic petroleum sulfonic acid, alkyl sulfonic acid, aryl sulfonic acid, alkyl aryl sulfonic acid and the like, and more specifically, dodecylbenzene sulfonic acid and dilaurylcetyl benzene sulfonic acid. , Paraffin wax-substituted benzenesulfonic acid, polyolefin-substituted benzenesulfonic acid, polyisobutylene-substituted benzenesulfonic acid, naphthalenesulfonic acid and the like.
Examples of the metal constituting the metal sulfonate include sodium, magnesium, calcium, zinc and the like, and among these, calcium is preferable from the viewpoint of rust prevention and availability.
Examples of the metal sulfonate include a hyperbasic metal sulfonate, a neutral metal sulfonate, and the like, and from the viewpoint of rust prevention and availability, the hyperbasic calcium sulfonate and the neutral calcium sulfonate are preferable.
(C) As the rust preventive agent, one type may be used alone or a plurality of types may be used in combination, but it is preferable to use a perbasic metal sulfonate and a neutral metal sulfonate in combination. By using the perbasic metal sulfonate and the neutral metal sulfonate in combination, a synergistic effect of achieving superior rust prevention properties as compared with the case of using only one of them can be obtained.
（過塩基性金属スルホネート）
過塩基性金属スルホネートの塩基価は、好ましくは３００ｍｇＫＯＨ／ｇ以上、より好ましくは４００ｍｇＫＯＨ／ｇ以上、特に好ましくは５００ｍｇＫＯＨ／ｇ以上である。一方、過塩基性金属スルホネートの塩基価は、好ましくは７００ｍｇＫＯＨ／ｇ以下、より好ましくは６００ｍｇＫＯＨ／ｇ以下、特に好ましくは５５０ｍｇＫＯＨ／ｇ以下である。
本明細書において、塩基価は、ＪＩＳ Ｋ ２５０１：２００３に記載の方法に準拠して測定した値である。
過塩基性金属スルホネートの塩基価が、上記下限値以上であると、防錆油膜の酸中和能が十分に担保される。一方、過塩基性金属スルホネートの塩基価が、上記上限値以下であると、入手が容易になりコストの増加を抑制することができる。(Superbasic metal sulfonate)
The base value of the perbasic metal sulfonate is preferably 300 mgKOH / g or more, more preferably 400 mgKOH / g or more, and particularly preferably 500 mgKOH / g or more. On the other hand, the base value of the hyperbasic metal sulfonate is preferably 700 mgKOH / g or less, more preferably 600 mgKOH / g or less, and particularly preferably 550 mgKOH / g or less.
In the present specification, the base value is a value measured according to the method described in JIS K 2501: 2003.
When the base value of the perbasic metal sulfonate is at least the above lower limit value, the acid neutralizing ability of the rust preventive oil film is sufficiently ensured. On the other hand, when the base value of the hyperbasic metal sulfonate is not more than the above upper limit value, it becomes easy to obtain and the increase in cost can be suppressed.
本実施形態の防錆油組成物中における過塩基性金属スルホネートの含有量は、防錆油組成物全量基準で、好ましくは０．５質量％以上、より好ましくは１質量％以上、特に好ましくは１．５質量％以上である。一方、過塩基性カルシウムスルホネートの含有量は、防錆油組成物全量基準で、好ましくは１０質量％以下、より好ましくは７質量％以下、特に好ましくは４質量％以下である。
過塩基性金属スルホネートの含有量が、上記下限値以上であると、十分な防錆性が得られる。一方、過塩基性金属スルホネートの含有量が、上記上限値以下であると、使用量を抑えつつ、十分な効果を発揮することができる。The content of the perbasic metal sulfonate in the rust preventive oil composition of the present embodiment is preferably 0.5% by mass or more, more preferably 1% by mass or more, particularly preferably 1% by mass or more, based on the total amount of the rust preventive oil composition. It is 1.5% by mass or more. On the other hand, the content of the perbasic calcium sulfonate is preferably 10% by mass or less, more preferably 7% by mass or less, and particularly preferably 4% by mass or less, based on the total amount of the rust preventive oil composition.
When the content of the perbasic metal sulfonate is at least the above lower limit value, sufficient rust prevention property can be obtained. On the other hand, when the content of the perbasic metal sulfonate is not more than the above upper limit value, a sufficient effect can be exhibited while suppressing the amount used.
（中性金属スルホネート）
中性金属スルホネートの全塩基価は、防錆性の観点から、好ましくは０ｍｇＫＯＨ／ｇ以上、より好ましくは５ｍｇＫＯＨ／ｇ以上、特に好ましくは１０ｍｇＫＯＨ／ｇ以上である。一方、中性金属スルホネートの全塩基価は、過塩基性金属スルホネートと組み合わせた際に優れた防錆性が得られる観点から、好ましくは２００ｍｇＫＯＨ／ｇ以下、より好ましくは１００ｍｇＫＯＨ／ｇ以下、特に好ましくは３０ｍｇＫＯＨ／ｇ以下である。(Neutral metal sulfonate)
From the viewpoint of rust prevention, the total base value of the neutral metal sulfonate is preferably 0 mgKOH / g or more, more preferably 5 mgKOH / g or more, and particularly preferably 10 mgKOH / g or more. On the other hand, the total base value of the neutral metal sulfonate is preferably 200 mgKOH / g or less, more preferably 100 mgKOH / g or less, particularly preferably from the viewpoint of obtaining excellent rust prevention properties when combined with the hyperbasic metal sulfonate. Is 30 mgKOH / g or less.
本実施形態の防錆油組成物中における中性金属スルホネートの含有量は、防錆油組成物全量基準で、好ましくは０．５質量％以上、より好ましくは１質量％以上、特に好ましくは１．５質量％以上である。一方、中性金属スルホネートの含有量は、防錆油組成物全量基準で、好ましくは１０質量％以下、より好ましくは７質量％以下、特に好ましくは４質量％以下である。
中性金属スルホネートの含有量が、上記下限値以上であると、十分な防錆性が得られる。一方、中性金属スルホネートの含有量が、上記上限値以下であると、使用量を抑えつつ、十分な効果を発揮することができる。The content of the neutral metal sulfonate in the rust preventive oil composition of the present embodiment is preferably 0.5% by mass or more, more preferably 1% by mass or more, and particularly preferably 1 based on the total amount of the rust preventive oil composition. It is 5.5% by mass or more. On the other hand, the content of the neutral metal sulfonate is preferably 10% by mass or less, more preferably 7% by mass or less, and particularly preferably 4% by mass or less, based on the total amount of the rust preventive oil composition.
When the content of the neutral metal sulfonate is at least the above lower limit value, sufficient rust prevention property can be obtained. On the other hand, when the content of the neutral metal sulfonate is not more than the above upper limit value, a sufficient effect can be exhibited while suppressing the amount used.
本実施形態の防錆油組成物が、過塩基性金属スルホネートと中性金属スルホネートとを含有する場合、過塩基性金属スルホネートと中性金属スルホネートとの含有量比（過塩基性金属スルホネート／中性金属スルホネート）は、防錆性の観点から、質量基準で、好ましくは０．２５以上、より好ましくは０．５以上、特に好ましくは０．８以上である。一方、含有量比（過塩基性金属スルホネート／中性金属スルホネート）は、防錆性の観点から、質量基準で、好ましくは４以下、より好ましくは２以下、特に好ましくは１．２５以下である。 When the rust preventive oil composition of the present embodiment contains a perbasic metal sulfonate and a neutral metal sulfonate, the content ratio of the perbasic metal sulfonate to the neutral metal sulfonate (perbasic metal sulfonate / medium). The metal sulfonate) is preferably 0.25 or more, more preferably 0.5 or more, and particularly preferably 0.8 or more on a mass basis from the viewpoint of rust prevention. On the other hand, the content ratio (perbasic metal sulfonate / neutral metal sulfonate) is preferably 4 or less, more preferably 2 or less, and particularly preferably 1.25 or less on a mass basis from the viewpoint of rust prevention. ..
本実施形態の防錆油組成物中における（Ｃ）防錆剤の含有量は、防錆油組成物全量基準で、好ましくは１質量％以上、より好ましくは２質量％以上、特に好ましくは３質量％以上である。一方、（Ｃ）防錆剤の含有量は、防錆油組成物全量基準で、好ましくは２０質量％以下、より好ましくは１４質量％以下、特に好ましくは８質量％以下である。
（Ｃ）防錆剤の含有量が、上記下限値以上であると、十分な防錆性が得られる。一方、（Ｃ）防錆剤の含有量が、上記上限値以下であると、使用量を抑えつつ、十分な効果を発揮することができる。The content of the (C) rust preventive agent in the rust preventive oil composition of the present embodiment is preferably 1% by mass or more, more preferably 2% by mass or more, and particularly preferably 3 based on the total amount of the rust preventive oil composition. It is mass% or more. On the other hand, the content of the rust preventive agent (C) is preferably 20% by mass or less, more preferably 14% by mass or less, and particularly preferably 8% by mass or less, based on the total amount of the rust preventive oil composition.
(C) When the content of the rust preventive agent is not more than the above lower limit value, sufficient rust preventive property can be obtained. On the other hand, when the content of the rust preventive agent (C) is not more than the above upper limit value, a sufficient effect can be exhibited while suppressing the amount used.
本実施形態の防錆油組成物は、必要に応じて、（Ｄ）酸化防止剤、（Ｅ）金属不活性化剤及び（Ｆ）多価アルコールの脂肪酸エステルからなる群から選択される１種以上を含有することが好ましい。 The rust preventive oil composition of the present embodiment is one selected from the group consisting of (D) antioxidant, (E) metal inactivating agent and (F) fatty acid ester of polyhydric alcohol, if necessary. It is preferable to contain the above.
＜（Ｄ）酸化防止剤＞
（Ｄ）酸化防止剤としては、フェノール系酸化防止剤、アミン系酸化防止剤等が挙げられるが、これらの中でも、酸化安定性の観点から、フェノール系酸化防止剤が好ましい。
フェノール系酸化防止剤としては、２，６−ジ−ｔ−ブチル−４−メチルフェノール、２，６−ジ−ｔ−ブチル−４−エチルフェノール、２，４，６−トリ−ｔ−ブチルフェノール、２，６−ジ−ｔ−ブチル−４−ヒドロキシメチルフェノール、２，６−ジ−ｔ−ブチルフェノール、２，４−ジメチル−６−ｔ−ブチルフェノール、２，６−ジ−ｔ−ブチル−４−（Ｎ，Ｎ−ジメチルアミノメチル）フェノール、２，６−ジ−ｔ−アミル−４−メチルフェノール、ｎ−オクタデシル−３−（３，５−ジ−ｔ−ブチル−４−ヒドロキシフェニル）プロピオネート等の単環フェノール系化合物；４，４’−メチレンビス（２，６−ジ−ｔ−ブチルフェノール）、４，４’−イソプロピリデンビス（２，６−ジ−ｔ−ブチルフェノール）、２，２’−メチレンビス（４−メチル−６−ｔ−ブチルフェノール）、４，４’−ビス（２，６−ジ−ｔ−ブチルフェノール）、４，４’−ビス（２−メチル−６−ｔ−ブチルフェノール）、２，２’−メチレンビス（４−エチル−６−ｔ−ブチルフェノール）、４，４’−ブチリデンビス（３−メチル−６−ｔ−ブチルフェノール）等の多環フェノール系化合物等が挙げられる。これらの中でも、酸化安定性の観点から、単環フェノール系化合物が好ましく、オクタデシル−３−（３，５−ジ−ｔ−ブチル−４−ヒドロキシフェニル）プロピオネートがより好ましい。
（Ｄ）酸化防止剤は、１種を単独で又は複数種を組み合わせて用いてもよい。<(D) Antioxidant>
Examples of the (D) antioxidant include phenol-based antioxidants and amine-based antioxidants. Among these, phenol-based antioxidants are preferable from the viewpoint of oxidation stability.
Examples of the phenolic antioxidant include 2,6-di-t-butyl-4-methylphenol, 2,6-di-t-butyl-4-ethylphenol, 2,4,6-tri-t-butylphenol, and the like. 2,6-di-t-butyl-4-hydroxymethylphenol, 2,6-di-t-butylphenol, 2,4-dimethyl-6-t-butylphenol, 2,6-di-t-butyl-4- (N, N-dimethylaminomethyl) phenol, 2,6-di-t-amyl-4-methylphenol, n-octadecyl-3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate, etc. Monocyclic phenolic compounds; 4,4'-methylenebis (2,6-di-t-butylphenol), 4,4'-isopropyridenebis (2,6-di-t-butylphenol), 2,2'- Methylenebis (4-methyl-6-t-butylphenol), 4,4'-bis (2,6-di-t-butylphenol), 4,4'-bis (2-methyl-6-t-butylphenol), 2 , 2'-Methylenebis (4-ethyl-6-t-butylphenol), 4,4'-butylidenebis (3-methyl-6-t-butylphenol) and other polycyclic phenolic compounds. Among these, monocyclic phenolic compounds are preferable, and octadecyl-3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate is more preferable from the viewpoint of oxidative stability.
(D) As the antioxidant, one type may be used alone or a plurality of types may be used in combination.
本実施形態の防錆油組成物中における（Ｄ）酸化防止剤の含有量は、防錆油組成物全量基準で、好ましくは０．１質量％以上、より好ましくは０．１５質量％以上、特に好ましくは０．２質量％以上である。一方、（Ｄ）酸化防止剤の含有量は、防錆油組成物全量基準で、好ましくは３質量％以下、より好ましくは１質量％以下、特に好ましくは０．５質量％以下である。
（Ｄ）酸化防止剤の含有量が、上記下限値以上であると、十分な酸化安定性が得られる。一方、（Ｄ）酸化防止剤の含有量が、上記上限値以下であると、使用量を抑えつつ、十分な効果を発揮することができる。The content of the (D) antioxidant in the rust preventive oil composition of the present embodiment is preferably 0.1% by mass or more, more preferably 0.15% by mass or more, based on the total amount of the rust preventive oil composition. Particularly preferably, it is 0.2% by mass or more. On the other hand, the content of the (D) antioxidant is preferably 3% by mass or less, more preferably 1% by mass or less, and particularly preferably 0.5% by mass or less, based on the total amount of the rust preventive oil composition.
When the content of the (D) antioxidant is at least the above lower limit value, sufficient oxidative stability can be obtained. On the other hand, when the content of the (D) antioxidant is not more than the above upper limit value, a sufficient effect can be exhibited while suppressing the amount used.
＜（Ｅ）金属不活性化剤＞
（Ｅ）金属不活性化剤としては、ベンゾトリアゾール系化合物、チアジアゾール系化合物、アルケニルコハク酸エステル及びその誘導体等が挙げられるが、これらの中でも、変色防止の観点から、ベンゾトリアゾール系化合物が好ましい。
ベンゾトリアゾール系化合物としては、１，２，３−ベンゾトリアゾール、メチルベンゾトリアゾール、１−［Ｎ，Ｎ−ビス（２−エチルヘキシル）アミノメチル］メチルベンゾトリアゾール等が挙げられ、これらの中でも、１−［Ｎ，Ｎ−ビス（２−エチルヘキシル）アミノメチル］メチルベンゾトリアゾールが好ましい。
（Ｅ）金属不活性化剤は、１種を単独で又は複数種を組み合わせて用いてもよい。<(E) Metal inactivating agent>
Examples of the (E) metal inactivating agent include benzotriazole-based compounds, thiazizol-based compounds, alkenyl succinates and derivatives thereof, and among these, benzotriazole-based compounds are preferable from the viewpoint of preventing discoloration.
Examples of the benzotriazole-based compound include 1,2,3-benzotriazole, methylbenzotriazole, 1- [N, N-bis (2-ethylhexyl) aminomethyl] methylbenzotriazole, and the like, among which 1- [N, N-bis (2-ethylhexyl) aminomethyl] methylbenzotriazole is preferred.
(E) As the metal inactivating agent, one type may be used alone or a plurality of types may be used in combination.
本実施形態の防錆油組成物中における（Ｅ）金属不活性化剤の含有量は、防錆油組成物全量基準で、好ましくは０．０１質量％以上、より好ましくは０．０３質量％以上、特に好ましくは０．０５質量％以上である。一方、（Ｅ）金属不活性化剤の含有量は、防錆油組成物全量基準で、好ましくは３質量％以下、より好ましくは１質量％以下、特に好ましくは０．３質量％以下である。
（Ｅ）金属不活性化剤の含有量が、上記下限値以上であると、十分な金属不活性化効果が得られる。一方、（Ｅ）金属不活性化剤の含有量が、上記上限値以下であると、使用量を抑えつつ、十分な効果を発揮することができる。The content of the (E) metal inactivating agent in the rust preventive oil composition of the present embodiment is preferably 0.01% by mass or more, more preferably 0.03% by mass, based on the total amount of the rust preventive oil composition. As mentioned above, it is particularly preferably 0.05% by mass or more. On the other hand, the content of the (E) metal inactivating agent is preferably 3% by mass or less, more preferably 1% by mass or less, and particularly preferably 0.3% by mass or less, based on the total amount of the rust preventive oil composition. ..
When the content of the (E) metal inactivating agent is at least the above lower limit value, a sufficient metal inactivating effect can be obtained. On the other hand, when the content of the (E) metal inactivating agent is not more than the above upper limit value, a sufficient effect can be exhibited while suppressing the amount used.
＜（Ｆ）一価カルボン酸の多価アルコールエステル＞
（Ｆ）一価カルボン酸の多価アルコールエステルは、多価アルコールの全ての水酸基がエステル化された完全エステルであってもよく、多価アルコールの一部の水酸基がエステル化されずに残った部分エステルであってもよく、部分エステルと完全エステルとの混合物であってもよいが、完全エステルであることが好ましい。<(F) Polyhydric alcohol ester of monovalent carboxylic acid>
(F) The polyhydric alcohol ester of the monohydric carboxylic acid may be a complete ester in which all the hydroxyl groups of the polyhydric alcohol are esterified, and some hydroxyl groups of the polyhydric alcohol remain without being esterified. It may be a partial ester or a mixture of a partial ester and a complete ester, but a complete ester is preferable.
（Ｆ）成分を構成する多価アルコールの炭素数は、好ましくは３以上、より好ましくは４以上、特に好ましくは５以上である。一方、多価アルコールの炭素数は、好ましくは１５以下、より好ましくは１０以下、特に好ましくは８以下である。
多価アルコールの炭素数が、上記下限値以上であると、防錆油膜中で造膜成分として機能しやすくなる。一方、多価アルコールの炭素数が、上記上限値以下であると、他成分との溶解性に優れる。
多価アルコールは、直鎖状、分岐鎖状又は環状のいずれであってもよく、飽和又は不飽和のいずれであってもよい。
多価アルコールとしては、エチレングリコ−ル、プロピレングリコ−ル、プロパンジオール、ブチレングリコール、ブタンジオール、２−メチル−１，３−プロパンジオール、ペンタンジオール、ネオペンチルグリコール、ヘキサンジオール、２−エチル−２−メチル−１，３−プロパンジオール、ヘプタンジオール、２−メチル−２−プロピル−１，３−プロパンジオール、２，２−ジエチル−１，３−プロパンジオール、オクタンジオール、ノナンジオール、デカンジオール、ウンデカンジオール、ドデカンジオール、トリデカンジオール、テトラデカンジオール、ペンタデカンジオール等の二価アルコール；トリメチロールエタン、ジトリメチロールエタン、トリメチロールプロパン、ジトリメチロールプロパン、グリセリン、ペンタエリスリトール、ジペンタエリスリトール、トリペンタエリスリトール、ソルビトール等の三価以上のアルコール等の多価脂肪族アルコール等が挙げられる。これらの中でも、防錆油膜中での造膜機能のし易さ及び他成分との溶解性の観点から、三価以上の脂肪族アルコールが好ましく、ペンタエリスリトール、ソルビトールがより好ましい。The number of carbon atoms of the polyhydric alcohol constituting the component (F) is preferably 3 or more, more preferably 4 or more, and particularly preferably 5 or more. On the other hand, the carbon number of the polyhydric alcohol is preferably 15 or less, more preferably 10 or less, and particularly preferably 8 or less.
When the carbon number of the polyhydric alcohol is at least the above lower limit value, it becomes easy to function as a film-forming component in the rust preventive oil film. On the other hand, when the carbon number of the polyhydric alcohol is not more than the above upper limit value, the solubility with other components is excellent.
The polyhydric alcohol may be linear, branched or cyclic and may be saturated or unsaturated.
Polyhydric alcohols include ethylene glycol, propylene glycol, propanediol, butylene glycol, butanediol, 2-methyl-1,3-propanediol, pentanediol, neopentyl glycol, hexanediol, and 2-ethyl-. 2-Methyl-1,3-propanediol, heptanediol, 2-methyl-2-propyl-1,3-propanediol, 2,2-diethyl-1,3-propanediol, octanediol, nonanediol, decanediol , Undecanediol, Dodecanediol, Tridecanediol, Tetradecanediol, Pentadecanediol and other dihydric alcohols; , Polyvalent aliphatic alcohols such as trivalent or higher alcohols such as sorbitol and the like. Among these, trivalent or higher aliphatic alcohols are preferable, and pentaerythritol and sorbitol are more preferable, from the viewpoint of ease of film forming function in the rust preventive oil film and solubility with other components.
（Ｆ）成分を構成する一価カルボン酸の炭素数は、好ましくは９以上、より好ましくは１２以上、特に好ましくは１４以上である。一方、一価カルボン酸の炭素数は、好ましくは２１以下、より好ましくは２０以下、特に好ましくは１８以下である。一価カルボン酸の炭素数が、上記下限値以上であると、防錆油膜中で造膜成分として機能し易くなる。一方、一価カルボン酸の炭素数が、上記上限値以下であると、他成分との溶解性に優れる。
一価カルボン酸は、直鎖状、分岐鎖状又は環状のいずれであってもよく、飽和又は不飽和のいずれであってもよい。
一価カルボン酸の具体例としては、ペラルゴン酸、カプリン酸、ラウリン酸、トリデカン酸、ミリスチン酸、パルミチン酸、マルガリン酸、デカン酸、イソデカン酸、ノナデシル酸、アラキジン酸、ヘンイコシル酸等の一価の飽和カルボン酸、ミリストレイン酸、パルミトレイン酸、サピエン酸、オレイン酸、リノール酸、リノレン酸、ガドレイン酸、エイコセン酸等の一価の不飽和カルボン酸等の一価の脂肪族カルボン酸；エチルシクロヘキサンカルボン酸、プロピルシクロヘキサンカルボン酸、ブチルシクロヘキサンカルボン酸、フェニルシクロペンタンカルボン酸、フェニルシクロヘキサンカルボン酸等の一価の脂環式カルボン酸；ビフェニルカルボン酸、ベンゾイル安息香酸、ナフタレンカルボン酸、アントラセンカルボン酸等の一価の芳香族カルボン酸等が挙げられる。これらの中でも、加工性及び他成分との溶解性の観点から、オレイン酸、リノール酸、リノレン酸等の一価の不飽和カルボン酸が好ましく、オレイン酸がより好ましい。The monovalent carboxylic acid constituting the component (F) has preferably 9 or more carbon atoms, more preferably 12 or more carbon atoms, and particularly preferably 14 or more carbon atoms. On the other hand, the carbon number of the monovalent carboxylic acid is preferably 21 or less, more preferably 20 or less, and particularly preferably 18 or less. When the carbon number of the monovalent carboxylic acid is at least the above lower limit value, it becomes easy to function as a film-forming component in the rust preventive oil film. On the other hand, when the number of carbon atoms of the monovalent carboxylic acid is not more than the above upper limit value, the solubility with other components is excellent.
The monovalent carboxylic acid may be linear, branched or cyclic and may be saturated or unsaturated.
Specific examples of the monovalent carboxylic acid include pelargonic acid, capric acid, lauric acid, tridecanoic acid, myristic acid, palmitic acid, margaric acid, decanoic acid, isodecanoic acid, nonadesilic acid, arachidic acid, henicosylic acid and the like. Monovalent aliphatic carboxylic acids such as saturated carboxylic acids, myristoleic acid, palmitrenic acid, sapienoic acid, oleic acid, linoleic acid, linolenic acid, gadrainic acid, eicosenoic acid and other monovalent unsaturated carboxylic acids; ethylcyclohexanecarboxylic acid Monovalent alicyclic carboxylic acids such as acids, propylcyclohexanecarboxylic acid, butylcyclohexanecarboxylic acid, phenylcyclopentanecarboxylic acid, phenylcyclohexanecarboxylic acid; biphenylcarboxylic acid, benzoylbenzoic acid, naphthalenecarboxylic acid, anthracenecarboxylic acid, etc. Examples thereof include monovalent aromatic carboxylic acids. Among these, monovalent unsaturated carboxylic acids such as oleic acid, linoleic acid, and linolenic acid are preferable, and oleic acid is more preferable, from the viewpoint of processability and solubility with other components.
（Ｆ）一価カルボン酸の多価アルコールエステルの具体例としては、ペンタエリスリトールモノオレエート、ペンタエリスリトールジオレエート、ペンタエリスリトールトリオレエート、ペンタエリスリトールテトラオレエート等の各種ペンタエリスリトールオレエート、各種ペンタエリスリトールステアレート、各種ペンタエリスリトールラウレート、各種ペンタエリスリトールミリステート、各種ペンタエリスリトールパルミテート等の多価アルコールがペンタエリスリトールのエステル；トリメチロールプロパンモノオレエート、トリメチロールプロパンジオレエート、トリメチロールプロパントリオレエート等の各種トリメチロールプロパンオレエート、各種トリメチロールプロパンラウレート、各種トリメチロールプロパンミリステート、各種トリメチロールプロパンパルミテート等の多価アルコールがトリメチロールプロパンのエステル；ソルビタンセスキオレエート等の多価アルコールがソルビトールのエステル等が挙げられる。これらの中でも、加工性の観点から、各種ペンタエリスリトールオレエート、各種トリメチロールプロパンオレエート、ソルビタンセスキオレエートが好ましい。
（Ｆ）一価カルボン酸の多価アルコールエステルは、１種を単独で又は複数種を組み合わせて用いてもよい。(F) Specific examples of the polyhydric alcohol ester of the monohydric carboxylic acid include various pentaerythritol oleates such as pentaerythritol monooleate, pentaerythritol dioleate, pentaerythritol trioleate, and pentaerythritol tetraoleate, and various pentas. Polyhydric alcohols such as erythritol stearate, various pentaerythritol laurates, various pentaerythritol millistates, and various pentaerythritol palmitates are esters of pentaerythritol; trimethylolpropane monooleate, trimethylolpropane dioleate, trimethylolpropanetriole. Polyhydric alcohols such as various trimethylol propane oleates such as ate, various trimethylol propane laurates, various trimethylol propane millistates, and various trimethylol propane palmitates are esters of trimethylrol propane; Examples of alcohols include esters of sorbitol. Among these, various pentaerythritol oleate, various trimethylolpropane oleate, and sorbitan sesquioleate are preferable from the viewpoint of processability.
(F) As the polyhydric alcohol ester of a monovalent carboxylic acid, one type may be used alone or a plurality of types may be used in combination.
本実施形態の防錆油組成物中における（Ｆ）一価カルボン酸の多価アルコールエステルの含有量は、防錆油組成物全量基準で、好ましくは０．５質量％以上、より好ましくは１質量％以上、特に好ましくは２質量％以上である。一方、（Ｆ）一価カルボン酸の多価アルコールエステルの含有量は、防錆油組成物全量基準で、好ましくは１５質量％以下、より好ましくは１０質量％以下、特に好ましくは７質量％以下である。
（Ｆ）一価カルボン酸の多価アルコールエステルの含有量が、上記下限値以上であると、造膜成分として機能する。一方、（Ｆ）一価カルボン酸の多価アルコールエステルの含有量が、上記上限値以下であると、べたつきが少ない防錆油膜を形成することができる。The content of the polyhydric alcohol ester of the (F) monovalent carboxylic acid in the rust preventive oil composition of the present embodiment is preferably 0.5% by mass or more, more preferably 1 based on the total amount of the rust preventive oil composition. By mass or more, particularly preferably 2% by mass or more. On the other hand, the content of the polyhydric alcohol ester of (F) monovalent carboxylic acid is preferably 15% by mass or less, more preferably 10% by mass or less, and particularly preferably 7% by mass or less based on the total amount of the rust preventive oil composition. Is.
(F) When the content of the polyhydric alcohol ester of the monovalent carboxylic acid is at least the above lower limit value, it functions as a film-forming component. On the other hand, when the content of the polyhydric alcohol ester of the (F) monovalent carboxylic acid is not more than the above upper limit value, a rust preventive oil film with less stickiness can be formed.
＜その他の添加剤＞
本実施形態の防錆油組成物は、本発明の目的を損なわない範囲で、（Ａ）〜（Ｆ）成分以外の、消泡剤、粘度指数向上剤等のその他の添加剤を含有していてもよい。
本実施形態の防錆油組成物は、（Ａ）〜（Ｃ）成分のみを含有するものであってもよいし、（Ａ）〜（Ｃ）成分と（Ｄ）〜（Ｆ）成分からなる群から選択される１種以上とを含有し、その他の添加剤を含有しないものであってもよい。
本実施形態の防錆油組成物中における（Ａ）〜（Ｃ）成分の合計含有量は、防錆油組成物全量基準で、８０質量％以上が好ましく、９０質量％以上がより好ましく、９３質量％以上が特に好ましい。また、上記合計含有量は、防錆油組成物全量基準で、９９質量％以下が好ましく、９８質量％以下がより好ましく、９７質量％以下が特に好ましい。 また、本実施形態の防錆油組成物中における（Ａ）〜（Ｆ）成分の合計含有量は、防錆油組成物全量基準で、９０質量％以上が好ましく、９５質量％以上がより好ましく、９９質量％以上が特に好ましい。<Other additives>
The rust preventive oil composition of the present embodiment contains other additives such as a defoaming agent and a viscosity index improver other than the components (A) to (F) as long as the object of the present invention is not impaired. You may.
The rust preventive oil composition of the present embodiment may contain only the components (A) to (C), or may be composed of the components (A) to (C) and the components (D) to (F). It may contain one or more selected from the group and may not contain other additives.
The total content of the components (A) to (C) in the rust preventive oil composition of the present embodiment is preferably 80% by mass or more, more preferably 90% by mass or more, based on the total amount of the rust preventive oil composition, 93. Mass% or more is particularly preferable. The total content is preferably 99% by mass or less, more preferably 98% by mass or less, and particularly preferably 97% by mass or less, based on the total amount of the rust preventive oil composition. The total content of the components (A) to (F) in the rust preventive oil composition of the present embodiment is preferably 90% by mass or more, more preferably 95% by mass or more, based on the total amount of the rust preventive oil composition. , 99% by mass or more is particularly preferable.
＜バリウムの含有量＞
本実施形態の防錆油組成物は、バリウムを実質的に含有しないことが好ましい。ここで「実質的に含有しない」とは、意図的にバリウムを添加するものではないことを意味し、微量に混入される不純物のバリウムまでを積極的に除去することを意図するものではない。
本実施形態の防錆油組成物が、バリウムを含有する場合、その含有量は、防錆油組成物全量基準で、好ましくは５質量ｐｐｍ以下、より好ましくは３質量ｐｐｍ以下、特に好ましくは１質量ｐｐｍ以下である。
本実施形態の防錆油組成物は、実質的にバリウムを含有しない、又はバリウムの含有量が上記上限値以下であると、環境への負荷を低減することができる。<Barium content>
The rust preventive oil composition of the present embodiment preferably contains substantially no barium. Here, "substantially free" means that barium is not intentionally added, and is not intended to positively remove even a trace amount of impurities barium.
When the rust preventive oil composition of the present embodiment contains barium, the content thereof is preferably 5 mass ppm or less, more preferably 3 mass ppm or less, and particularly preferably 1 based on the total amount of the rust preventive oil composition. The mass is ppm or less.
When the rust preventive oil composition of the present embodiment substantially does not contain barium or the content of barium is not more than the above upper limit value, the burden on the environment can be reduced.
＜防錆油組成物の製造方法＞
本実施形態の防錆油組成物は、（Ａ）引火点が１００℃未満の溶剤と、（Ｂ）引火点が１００℃以上であって、４０℃動粘度が７ｍｍ２／ｓ以上１２０ｍｍ２／ｓ以下である基油と、（Ｃ）防錆剤と、を混合することで調製することができる。その際には、必要に応じて含有される（Ｄ）〜（Ｆ）成分からなる群から選択される１種以上及び／又はその他の添加剤を配合してもよい。<Manufacturing method of rust preventive oil composition>
The rust preventive oil composition of the present embodiment has (A) a solvent having a flash point of less than 100 ° C. and (B) a solvent having a flash point of 100 ° C. or higher and a kinematic viscosity of 40 ° C. of 7 mm 2 / s or more and 120 mm 2 /. It can be prepared by mixing a base oil having an s or less and (C) a rust preventive agent. In that case, one or more kinds and / or other additives selected from the group consisting of the components (D) to (F) contained may be blended as needed.
＜防錆油組成物の用途＞
以上説明してきたように、本実施形態の防錆油組成物は、優れた防錆油膜の薄膜性と防錆性とを両立するものであり、更には、速乾性及び低臭気性にも優れるため、作業性にも優れるものである。したがって、本実施形態の防錆油組成物は、鋼板等の金属材料への使用に好適であり、特に、自動車用の金属材料への使用に好適であり、トルクコンバータ用の金属材料への使用により好適である。すなわち、本発明によると、本実施形態の防錆油組成物を用いた金属材料の防錆方法、及び、本実施形態の防錆油組成物を用いたトルクコンバータ用の金属材料の防錆方法も提供することができる。<Use of rust preventive oil composition>
As described above, the rust preventive oil composition of the present embodiment has both excellent thin film properties and rust preventive properties of the rust preventive oil film, and is also excellent in quick-drying property and low odor property. Therefore, the workability is also excellent. Therefore, the rust preventive oil composition of the present embodiment is suitable for use in metal materials such as steel plates, and in particular, is suitable for use in metal materials for automobiles, and is used in metal materials for torque converters. More suitable. That is, according to the present invention, a method for preventing rust on a metal material using the rust preventive oil composition of the present embodiment and a method for preventing rust on a metal material for a torque converter using the rust preventive oil composition of the present embodiment. Can also be provided.
次に、本発明を実施例により、更に詳細に説明するが、本発明は、これらの例によって何ら限定されるものではない。
なお、防錆油組成物に配合した成分の引火点、４０℃動粘度及び塩基価の測定方法は、下記の通りである。Next, the present invention will be described in more detail by way of examples, but the present invention is not limited to these examples.
The method for measuring the flash point, 40 ° C. kinematic viscosity and base value of the components blended in the rust preventive oil composition is as follows.
（１）引火点
引火点はＪＩＳ Ｋ２２６５：２００７に記載の方法に準拠して測定した。
なお、イソパラフィン及び軽油の引火点は、ペンスキーマルテンス密閉法（ＰＭ法）で測定し、パラフィン系鉱油の引火点は、クリーブランド開放法（ＣＯＣ法）で測定した。
（２）４０℃動粘度
４０℃動粘度は、ＪＩＳ Ｋ２２８３：２０００に記載の方法に準拠して測定した。
（３）塩基価
塩基価は、ＪＩＳ Ｋ２５０１：２００３に記載の方法に準拠して測定した。(1) Flash point The flash point was measured according to the method described in JIS K2265: 2007.
The flash point of isoparaffin and light oil was measured by the Penske Maltens sealing method (PM method), and the flash point of paraffin-based mineral oil was measured by the Cleveland opening method (COC method).
(2) 40 ° C. kinematic viscosity The 40 ° C. kinematic viscosity was measured according to the method described in JIS K2283: 2000.
(3) Base value The base value was measured according to the method described in JIS K2501: 2003.
＜防錆油組成物の製造＞
実施例１〜３、比較例１〜２
表１に示す配合組成（質量％）で各成分を混合し、防錆油組成物を調製した。<Manufacturing of rust preventive oil composition>
Examples 1-3, Comparative Examples 1-2
Each component was mixed with the compounding composition (mass%) shown in Table 1 to prepare a rust preventive oil composition.
なお、表１に示される各成分の詳細は以下の通りである。
［（Ａ）成分］
・イソパラフィン（炭素数１０〜１２）：引火点４５℃
・軽油：４０℃動粘度１．６２１ｍｍ２／ｓ、引火点７６℃
［（Ｂ）成分］
・パラフィン系鉱油１：４０℃動粘度３０．６ｍｍ２／ｓ、引火点２１０℃
［比較成分］
・パラフィン系鉱油２：４０℃動粘度４３５．１ｍｍ２／ｓ、引火点３００℃
［（Ｃ）成分］
・中性カルシウムスルホネート、カルシウム含有量２．４５質量％、塩基価２０ｍｇＫＯＨ／ｇ
・過塩基性カルシウムスルホネート、カルシウム含有量１８質量％、塩基価５３７ｍｇＫＯＨ／ｇThe details of each component shown in Table 1 are as follows.
[(A) component]
-Isoparaffin (10 to 12 carbon atoms): Flash point 45 ° C.
・ Light oil: 40 ° C, kinematic viscosity 1.621 mm 2 / s, flash point 76 ° C
[(B) component]
・ Paraffinic mineral oil 1: 40 ℃, kinematic viscosity 30.6mm 2 / s, flash point 210 ℃
[Comparison component]
-Paraffin mineral oil 2: 40 ° C., kinematic viscosity 435.1 mm 2 / s, flash point 300 ° C.
[Component (C)]
-Neutral calcium sulfonate, calcium content 2.45% by mass, base value 20 mgKOH / g
・ Hyperbasic calcium sulfonate, calcium content 18% by mass, base value 537 mgKOH / g
＜評価方法＞
上記で得られた防錆油組成物について、以下の方法により各種試験を行い、その物性を評価した。評価結果を表１に示す。<Evaluation method>
The rust preventive oil composition obtained above was subjected to various tests by the following methods to evaluate its physical properties. The evaluation results are shown in Table 1.
（１）防錆性の評価
ＪＩＳ Ｋ２２４６：２００７に準拠して中性塩水噴霧試験方法で行い、下記評価基準に基づいて評価した。
（評価基準）
Ａ：さび等級Ａ級
Ｂ：さび等級Ｂ級
Ｃ：さび等級Ｃ、Ｄ又はＥ級(1) Evaluation of rust prevention property The test method was performed by a neutral salt spray test method in accordance with JIS K2246: 2007, and evaluation was performed based on the following evaluation criteria.
(Evaluation criteria)
A: Rust grade A grade B: Rust grade B grade C: Rust grade C, D or E grade
（２）防錆油膜の薄膜性の評価
防錆油膜の薄膜性は、下記方法により測定した油付着量に基づいて評価した。
幅６０ｍｍ×長さ８０ｍｍ×厚さ０．８ｍｍの鋼板（ＳＰＣＣ−ＳＤ）を、防錆油組成物に浸漬した後取り出し、該鋼板を鉛直方向に吊り下げ、温度２３℃で２４時間油切を行った。
防錆油組成物を塗布する前の鋼板の重量と、油切後の鋼板の重量との差から油付着量（ｇ／ｍ２）を求め、比較例１の油付着量を１．０とした場合における、各例の油付着量の相対値を防錆油膜の薄膜性の指標とした。防錆油膜の薄膜性は下記評価基準に基づいて評価した。
（評価基準）
Ａ：０．６未満
Ｂ：０．６以上、１．０未満
Ｃ：１．０以上(2) Evaluation of thin film property of rust preventive oil film The thin film property of the rust preventive oil film was evaluated based on the amount of oil adhered measured by the following method.
A steel plate (SPCC-SD) having a width of 60 mm, a length of 80 mm, and a thickness of 0.8 mm is immersed in a rust preventive oil composition and then taken out, and the steel plate is suspended in the vertical direction and drained at a temperature of 23 ° C. for 24 hours. went.
The oil adhesion amount (g / m 2 ) was obtained from the difference between the weight of the steel plate before applying the rust preventive oil composition and the weight of the steel plate after oil draining, and the oil adhesion amount of Comparative Example 1 was set to 1.0. In this case, the relative value of the oil adhesion amount in each example was used as an index of the thinness of the rust preventive oil film. The thin film property of the rust preventive oil film was evaluated based on the following evaluation criteria.
(Evaluation criteria)
A: less than 0.6 B: 0.6 or more, less than 1.0 C: 1.0 or more
（３）速乾性の評価
６０ｍｍφのシャーレ内に１．０ｇの防錆油組成物を滴下した後、２３℃で静置して経時重量変化を計測し、下記評価基準に基づいて速乾性を評価した。
（評価基準）
Ａ：２４時間後に重量割合で５０％以上乾燥
Ｂ：２４時間後に重量割合で５０％未満乾燥(3) Evaluation of quick-drying property After dropping 1.0 g of the rust-preventive oil composition into a 60 mmφ petri dish, the mixture was allowed to stand at 23 ° C. to measure the change in weight over time, and the quick-drying property was evaluated based on the following evaluation criteria. did.
(Evaluation criteria)
A: Dry 50% or more by weight after 24 hours B: Dry less than 50% by weight after 24 hours
（４）低臭気性の評価
被験者１０人により、温度２３℃において、防錆油組成物の臭気の官能評価を行った。
（評価基準）
Ａ：全く臭わないと判断した人数が７人以上
Ｂ：全く臭わないと判断した人数が７人未満(4) Evaluation of low odor property A sensory evaluation of the odor of the rust preventive oil composition was performed by 10 subjects at a temperature of 23 ° C.
(Evaluation criteria)
A: 7 or more people judged that it does not smell at all B: Less than 7 people judged that it does not smell at all
（５）バリウム含有量の評価
バリウム含有量は、ＩＣＰ定量分析により測定した。
（評価基準）
Ａ：検出限界以下
Ｂ：バリウムが検出された。(5) Evaluation of barium content The barium content was measured by ICP quantitative analysis.
(Evaluation criteria)
A: Below the detection limit B: Barium was detected.
表１の結果により、本実施形態の実施例１〜３の防錆油組成物は、速乾性及び低臭気性に優れ、優れた防錆油膜の薄膜性と防錆性とを両立していることが分かる。なかでも、（Ａ）成分として、イソパラフィン（引火点４５℃）を使用した実施例１及び２は、特に、防錆油膜の薄膜性と防錆性とを高度に両立していた。
一方、防錆油組成物の４０℃動粘度が３．２ｍｍ２／ｓを超える比較例１の防錆油組成物は、防錆油膜の薄膜性に劣っていた。また、（Ｂ）成分として、４０℃動粘度が１２０ｍｍ２／ｓを超える基油のみを使用した比較例２の防錆油組成物は、防錆性に劣っていた。
According to the results in Table 1, the rust preventive oil compositions of Examples 1 to 3 of the present embodiment are excellent in quick-drying property and low odor property, and have both excellent thin film property and rust preventive property of the rust preventive oil film. You can see that. Among them, Examples 1 and 2 in which isoparaffin (flash point 45 ° C.) was used as the component (A) had a high degree of compatibility between the thin film property of the rust preventive oil film and the rust preventive property.
On the other hand, the rust preventive oil composition of Comparative Example 1 having a kinematic viscosity at 40 ° C. of the rust preventive oil composition exceeding 3.2 mm 2 / s was inferior in the thin film property of the rust preventive oil film. Further, the rust preventive oil composition of Comparative Example 2 in which only the base oil having a kinematic viscosity of more than 120 mm 2 / s at 40 ° C. was used as the component (B) was inferior in rust preventive property.
Claims (14)
（Ｂ）引火点が１００℃以上であって、４０℃動粘度が７ｍｍ２／ｓ以上１２０ｍｍ２／ｓ以下である基油と、
（Ｃ）防錆剤と、
を含有し、４０℃動粘度が０．５ｍｍ２／ｓ以上３．２ｍｍ２／ｓ以下である、防錆油組成物。(A) With a solvent having a flash point of less than 100 ° C.
(B) A base oil having a flash point of 100 ° C. or higher and a kinematic viscosity of 40 ° C. of 7 mm 2 / s or more and 120 mm 2 / s or less.
(C) Rust inhibitor and
A rust preventive oil composition containing, and having a kinematic viscosity at 40 ° C. of 0.5 mm 2 / s or more and 3.2 mm 2 / s or less.
（Ａ）引火点が１００℃未満の溶剤と、
（Ｂ）引火点が１００℃以上であって、４０℃動粘度が７ｍｍ２／ｓ以上１２０ｍｍ２／ｓ以下である基油と、
（Ｃ）防錆剤と、を混合する、防錆油組成物の製造方法。The method for producing a rust preventive oil composition according to any one of claims 1 to 13.
(A) With a solvent having a flash point of less than 100 ° C.
(B) A base oil having a flash point of 100 ° C. or higher and a kinematic viscosity of 40 ° C. of 7 mm 2 / s or more and 120 mm 2 / s or less.
(C) A method for producing a rust preventive oil composition, which is a mixture of a rust preventive agent and a rust preventive agent.
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| JPH1046176A (en) * | 1988-12-27 | 1998-02-17 | Nippon Oil Co Ltd | Forming and rust-preventing oil composition for surface-trated steel sheet |
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