WO2017169578A1 - 表面保護剤組成物および端子付き被覆電線 - Google Patents

表面保護剤組成物および端子付き被覆電線 Download PDF

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WO2017169578A1
WO2017169578A1 PCT/JP2017/009132 JP2017009132W WO2017169578A1 WO 2017169578 A1 WO2017169578 A1 WO 2017169578A1 JP 2017009132 W JP2017009132 W JP 2017009132W WO 2017169578 A1 WO2017169578 A1 WO 2017169578A1
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Prior art keywords
group
protective agent
agent composition
metal
carbon atoms
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PCT/JP2017/009132
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English (en)
French (fr)
Japanese (ja)
Inventor
高田　裕
細川　武広
達也 長谷
直之 鴛海
卓也 山下
誠 溝口
吉田　公一
健一 小宮
設楽　裕治
八木下　和宏
Original Assignee
株式会社オートネットワーク技術研究所
住友電装株式会社
住友電気工業株式会社
国立大学法人九州大学
Ｊｘエネルギー株式会社
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Application filed by 株式会社オートネットワーク技術研究所, 住友電装株式会社, 住友電気工業株式会社, 国立大学法人九州大学, Ｊｘエネルギー株式会社 filed Critical 株式会社オートネットワーク技術研究所
Priority to CN201780020942.8A priority Critical patent/CN108884409A/zh
Priority to US16/086,445 priority patent/US20190106652A1/en
Priority to DE112017001618.5T priority patent/DE112017001618B4/de
Publication of WO2017169578A1 publication Critical patent/WO2017169578A1/ja

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/2806—Protection against damage caused by corrosion
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • 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
    • C10M115/00—Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof
    • C10M115/08—Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing nitrogen
    • 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
    • C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
    • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
    • C10M137/04—Phosphate esters
    • 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
    • C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
    • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
    • C10M137/04—Phosphate esters
    • C10M137/10—Thio derivatives
    • 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
    • C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
    • C10M141/10—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic phosphorus-containing compound
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
    • H01R4/184—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion
    • H01R4/185—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion combined with a U-shaped insulation-receiving portion
    • 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
    • C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
    • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
    • 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
    • C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
    • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
    • C10M137/04—Phosphate esters
    • C10M137/06—Metal salts
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
    • 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/144—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings containing hydroxy groups
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/08—Amides
    • 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
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/047—Thioderivatives not containing metallic elements
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/02—Groups 1 or 11
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/04—Groups 2 or 12
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/06—Groups 3 or 13
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/08—Groups 4 or 14
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/04—Molecular weight; Molecular weight distribution
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/02—Pour-point; Viscosity index
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/32—Wires, ropes or cables lubricants
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/10—Semi-solids; greasy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form

Definitions

  • the present invention relates to a surface protective agent composition and a coated electric wire with a terminal, and more particularly, to a surface protective agent composition excellent in anticorrosive performance for preventing metal corrosion and a coated electric wire with terminal excellent in anticorrosive performance using the same. is there.
  • Patent Document 1 describes that a grease containing a perfluoroether base oil, a thickener, barium sulfate or antimony oxide is used for a machine part.
  • Patent Document 2 discloses that 30 to 95% by mass of a volatile liquid having a boiling point of 300 ° C. or less, 1 to 50% by mass of a lubricating oil and / or a rust preventive agent, and 0.1 to 30% of a compound having an amide group. A surface treatment agent containing 50% by mass has been proposed.
  • Patent Document 1 has low adhesion to metal, and may flow out of the metal surface particularly in a high temperature environment, and it is difficult to stably protect the metal surface. This is presumably because the grease of Patent Document 1 is not chemically bonded to the metal surface and is only in close contact with the metal surface by the van der Waals force having a weak suction force. Further, the surface treatment agent of Patent Document 2 also has low adhesion to metal, and may flow out of the metal surface particularly in a high temperature environment, and it is difficult to stably protect the metal surface.
  • the problem to be solved by the present invention is to provide a surface protective agent composition that stably protects a metal surface even when exposed to high temperatures, and a coated electric wire with a terminal using the same.
  • a surface protective agent composition according to the present invention is represented by a viscous substance (A) composed of a lubricating base oil and an amide compound, the following general formulas (1) and (2):
  • the lubricating base oil has a kinematic viscosity at 100 ° C. of 10 mm 2 / s or more and a number average molecular weight of 400 or more. .
  • X 1 to X 7 each independently represents an oxygen atom or a sulfur atom
  • R 11 to R 13 each independently represents a hydrogen group or a hydrocarbon group having 1 to 30 carbon atoms, and of these, At least one is a hydrocarbon group having 1 to 30 carbon atoms
  • R 14 to R 16 each independently represents a hydrogen group or a hydrocarbon group having 1 to 30 carbon atoms, and at least one of these is It is a hydrocarbon group having 1 to 30 carbon atoms.
  • the surface protective agent composition according to the present invention preferably has a shear viscosity at 100 ° C. of 1000 mPa ⁇ s or more.
  • the amide compound is preferably one or more of compounds represented by the following general formulas (3) to (5).
  • (Chemical formula 3) R 21 —CO—NH—R 22 (3)
  • (Chemical formula 4) R 23 —CO—NH—Y 31 —NH—CO—R 24 (4) (Chemical formula 5)
  • R 25 —NH—CO—Y 32 —CO—NH—R 26 (5)
  • R 21 to R 26 each independently represents a saturated or unsaturated chain hydrocarbon group having 5 to 25 carbon atoms
  • R 22 may be hydrogen
  • Y 31 and Y 32 represent carbon numbers.
  • a divalent hydrocarbon group having 1 to 10 carbon atoms selected from the group consisting of an alkylene group having 1 to 10 carbon atoms, a phenylene group, or an alkylphenylene group having 7 to 10 carbon atoms.
  • the amide compound is preferably a fatty acid amide having a melting point in the range of 20 to 200 ° C.
  • the phosphorus compound preferably has one or more branched chain structures or one or more carbon-carbon double bond structures in the structure of the hydrocarbon group.
  • the metal forming the composition with the phosphorus compound is preferably at least one selected from alkali metals, alkaline earth metals, aluminum, titanium, and zinc.
  • the molecular weight of the phosphorus compound and metal composition is preferably 3000 or less.
  • the surface protective agent composition according to the present invention is preferably used for anticorrosion to prevent metal corrosion by covering the metal surface with the surface of the metal member to be surface protected.
  • the gist of the covered electric wire with a terminal according to the present invention is that the electrical connection portion between the terminal fitting and the electric wire conductor is covered with the above surface protective agent composition.
  • a viscous substance (A) composed of a lubricating base oil and an amide compound, 1 of the compounds represented by the above general formulas (1) and (2)
  • a composition (B) of a phosphorus compound and a metal comprising two or more species, and the mass ratio of (A) to (B) is (A) :( B) 50: 50 to 98 :
  • the above-mentioned lubricating base oil has a kinematic viscosity at 100 ° C. of 10 mm 2 / s or more and a number average molecular weight of 400 or more, and is oxidized and deteriorated even when exposed to high temperatures. It is difficult and maintains a high viscosity, so that outflow is suppressed even when exposed to high temperatures. Thereby, even if it exposes to high temperature, a metal surface can be protected stably.
  • the surface protective agent composition according to the present invention has a shear viscosity at 100 ° C. of 1000 mPa ⁇ s or more, so that the outflow is easily suppressed even when exposed to high temperatures.
  • the specific phosphorus compound when the specific phosphorus compound has one or more branched chain structures or one or more carbon-carbon double bond structures in the structure of the hydrocarbon group, Compatibility with oil is improved.
  • the metal forming the composition with the specific phosphorus compound is at least one selected from alkali metals, alkaline earth metals, aluminum, titanium, and zinc, the adhesion when applied to the metal surface is improved. To do.
  • the compatibility with the lubricating base oil is improved.
  • the covered electric wire with a terminal which concerns on this invention, since the electrical-connection part of a terminal metal fitting and an electric wire conductor is covered by said surface protective agent composition, even if it exposes to high temperature, a terminal metal fitting and an electric wire The metal surface such as a conductor is stably protected and the anticorrosion performance is maintained.
  • FIG. 2 is a longitudinal sectional view taken along line AA in FIG.
  • the surface protective agent composition according to the present invention (hereinafter sometimes referred to as the present protective agent composition) includes a viscous substance (A) composed of a lubricating base oil and an amide compound, a specific phosphorus compound, And a composition (B) with a metal.
  • any mineral oil, wax isomerized oil, or a mixture of two or more kinds used as a base oil for ordinary lubricating oils can be used.
  • specific examples of mineral oils include, for example, a lubricating oil fraction obtained by subjecting crude oil to atmospheric distillation and vacuum distillation, solvent dewaxing, solvent extraction, hydrocracking, solvent dewaxing, catalytic dewaxing, hydrogen Oils such as paraffinic and naphthenic oils, normal paraffins, and the like that are purified by appropriately combining purification treatments such as chemical purification, sulfuric acid washing, and clay treatment can be used.
  • wax isomerate oil natural wax such as petroleum slack wax obtained by dewaxing hydrocarbon oil or a mixture of carbon monoxide and hydrogen is contacted with a synthesis catalyst applicable at high temperature and high pressure, so-called Fischer Tropsch synthesis. Those prepared by hydroisomerizing a wax raw material such as synthetic wax produced by the method can be used.
  • slack wax is used as a wax raw material, slack wax contains a large amount of sulfur and nitrogen, and these are not necessary for lubricating base oils. It is desirable to use a wax having a reduced content as a raw material.
  • the synthetic oil is not particularly limited, but is a poly ⁇ -olefin such as 1-octene oligomer, 1-decene oligomer, ethylene-propylene oligomer or the hydride thereof, isobutene oligomer or the hydride thereof, isoparaffin, alkylbenzene, alkylnaphthalene, Diesters (ditridecyl glutarate, di-2-ethylhexyl adipate, diisodecyl adipate, ditridecyl adipate, di-2-ethylhexyl sebacate, etc.), polyol esters (trimethylolpropane caprylate, trimethylolpropane pelargonate, pentaerythritol-2) -Ethylhexanoate, pentaerythritol pelargonate, etc.), polyoxyalkylene glycol, dialkyl diphenyl
  • the lubricating base oil one having a kinematic viscosity at 100 ° C. of 10 mm 2 / s or more and a number average molecular weight of 400 or more is used. Since the kinematic viscosity of the present protective agent composition is increased by increasing the kinematic viscosity of the lubricating base oil, it is easy to suppress outflow when exposed to high temperatures. From this viewpoint, the kinematic viscosity is more preferably 15 mm 2 / s or more, and further preferably 20 mm 2 / s or more.
  • the kinematic viscosity is more preferably 150 mm 2 / s or less, and still more preferably 120 mm 2 / s or less.
  • the kinematic viscosity at 100 ° C. is preferably in the range of 2 to 130 mm 2 / s because of excellent volatility and ease of handling during production.
  • the kinematic viscosity is measured according to JIS K2283.
  • Lubricating oil base oil has a number average molecular weight of 400 or more, so that the molecular weight is high, and oxidative degradation when exposed to high temperatures is suppressed, thereby suppressing the decrease in kinematic viscosity. Since the kinematic viscosity of the lubricating base oil is kept high even when exposed to high temperatures, the outflow when exposed to high temperatures is suppressed. From this viewpoint, the number average molecular weight is more preferably 450 or more. From the viewpoint of ease of application, the number average molecular weight is more preferably 10,000 or less, and still more preferably 8000 or less.
  • the amide compound forms a network structure by hydrogen bonds in the lubricating base oil.
  • viscosity is provided to lubricating base oil and it becomes a grease-like viscous substance. That is, by using it together with the lubricating base oil, a gel-like material is formed at room temperature. That is, the amide compound gels (semi-solidifies) a liquid lubricating base oil at room temperature.
  • the viscous substance is held on the coated surface of the material to be coated at room temperature or under heating due to its viscosity.
  • the amide compound is a compound having one or more amide groups (—NH—CO—), and a monoamide compound having one amide group or a bisamide compound having two amide groups can be preferably used.
  • amide compound for example, compounds represented by the following general formulas (3) to (5) can be preferably used. These may be used individually by 1 type and may be used in combination of 2 or more type. (Chemical formula 3) R 21 —CO—NH—R 22 (3) (Chemical formula 4) R 23 —CO—NH—Y 31 —NH—CO—R 24 (4) (Chemical formula 5) R 25 —NH—CO—Y 32 —CO—NH—R 26 (5)
  • R 21 to R 26 each independently represents a saturated or unsaturated chain hydrocarbon group having 5 to 25 carbon atoms, and R 22 may be hydrogen.
  • Y 31 and Y 32 represent a divalent hydrocarbon group having 1 to 10 carbon atoms selected from the group consisting of an alkylene group having 1 to 10 carbon atoms, a phenylene group, or an alkylphenylene group having 7 to 10 carbon atoms.
  • a part of hydrogen of the hydrocarbon group constituting R 21 to R 26 may be substituted with a hydroxyl group (—OH).
  • amide compound represented by the general formula (3) examples include lauric acid amide, palmitic acid amide, stearic acid amide, behenic acid amide, hydroxy stearic acid amide, saturated fatty acid amides, oleic acid amides, Elca Examples include unsaturated fatty acid amides such as acid amides, stearyl stearic acid amides, oleyl oleic acid amides, oleyl stearic acid amides, stearyl oleic acid amides and the like, substituted amides with saturated or unsaturated long chain fatty acids and long chain amines, and the like.
  • an amide compound in which R 21 is a saturated chain hydrocarbon group having 12 to 20 carbon atoms and R 22 is a hydrogen group in the general formula (3) R 21 and R 22 in the general formula (3)
  • amide compound represented by the general formula (4) examples include ethylene bis stearic acid amide, ethylene bis isostearic acid amide, ethylene bis oleic acid amide, methylene bis lauric acid amide, hexamethylene bis oleic acid amide, Examples include hexamethylene bishydroxystearic acid amide and m-xylylene bisstearic acid amide.
  • Compounds are preferred. More specifically, ethylene bis stearamide is preferable.
  • amide compound represented by the general formula (5) examples include N, N′-distearyl sebacic acid amide.
  • Amide in which at least one of R 25 and R 26 is a saturated chain hydrocarbon group having 12 to 20 carbon atoms in the general formula (5) such as an amide compound in which each is a saturated chain hydrocarbon group having 12 to 20 carbon atoms Compounds are preferred.
  • the amide compound has a melting point of 20 ° C. or higher from the viewpoint of easily maintaining a gel (semi-solid) at room temperature when mixed with a lubricating base oil, and easily maintaining a gel (semi-solid) at normal temperature. It is preferable that More preferably, it is 50 degreeC or more, More preferably, it is 80 degreeC or more, Most preferably, it is 120 degreeC or more. Moreover, it is preferable that melting
  • the molecular weight of the amide compound is preferably in the range of 100 to 1000. More preferably, it is in the range of 150 to 800.
  • the content of the amide compound is a lubricating oil that is easy to maintain a gel (semi-solid) at room temperature when mixed with a lubricant base oil, and is easy to maintain a gel (semi-solid) at normal temperature. It is preferable that it is 1 mass part or more with respect to 100 mass parts of base oil. More preferably, it is 2 mass parts or more, More preferably, it is 5 mass parts or more. Moreover, it is preferable that it is 70 mass parts or less with respect to 100 mass parts of lubricating base oil. More preferably, it is 60 mass parts or less, More preferably, it is 50 mass parts or less.
  • the specific phosphorus compound is composed of one or more compounds represented by the following general formulas (1) and (2).
  • X 1 to X 7 each independently represents an oxygen atom or a sulfur atom
  • R 11 to R 13 each independently represents a hydrogen group or a hydrocarbon group having 1 to 30 carbon atoms, and of these, At least one is a hydrocarbon group having 1 to 30 carbon atoms
  • R 14 to R 16 each independently represents a hydrogen group or a hydrocarbon group having 1 to 30 carbon atoms, and at least one of these is It is a hydrocarbon group having 1 to 30 carbon atoms.
  • hydrocarbon group examples include an alkyl group, a cycloalkyl group, an alkyl-substituted cycloalkyl group, an alkenyl group, an aryl group, an alkyl-substituted aryl group, and an arylalkyl group.
  • alkyl group methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group, decyl group, undecyl group, dodecyl group, tridecyl group, tetradecyl group, pentadecyl group , Hexadecyl group, heptadecyl group, octadecyl group and the like. These may be linear or branched.
  • Examples of the cycloalkyl group include a cyclopentyl group, a cyclohexyl group, and a cycloheptyl group.
  • Examples of the alkyl-substituted cycloalkyl group include methylcyclopentyl group, dimethylcyclopentyl group, methylethylcyclopentyl group, diethylcyclopentyl group, methylcyclohexyl group, dimethylcyclohexyl group, methylethylcyclohexyl group, diethylcyclohexyl group, methylcycloheptyl group, dimethylcyclohexyl group.
  • Examples thereof include a butyl group, a methylethylcycloheptyl group, and a diethylcycloheptyl group.
  • the substitution position of the alkyl-substituted cycloalkyl group is not particularly limited.
  • the alkyl group may be linear or branched.
  • Alkenyl groups include butenyl, pentenyl, hexenyl, heptenyl, octenyl, nonenyl, decenyl, undecenyl, dodecenyl, tridecenyl, tetradecenyl, pentadecenyl, hexadecenyl, heptadecenyl, octadecenyl Etc. These may be linear or branched.
  • Examples of the aryl group include a phenyl group and a naphthyl group.
  • Examples of the alkyl-substituted aryl group include tolyl group, xylyl group, ethylphenyl group, propylphenyl group, butylphenyl group, pentylphenyl group, hexylphenyl group, heptylphenyl group, octylphenyl group, nonylphenyl group, decylphenyl group, An undecylphenyl group, a dodecylphenyl group, etc. are mentioned.
  • the substitution position of the alkyl-substituted aryl group is not particularly limited.
  • the alkyl group may be linear or branched.
  • Examples of the arylalkyl group include a benzyl group, a phenylethyl group, a phenylpropyl group, a phenylbutyl group, a phenylpentyl group, and a phenylhexyl group.
  • the alkyl group may be linear or branched.
  • X 1 to X 7 are preferably all oxygen atoms.
  • the hydrocarbon group having 1 to 30 carbon atoms of R 11 to R 16 is preferably a hydrocarbon group having 4 to 30 carbon atoms, and more preferably a hydrocarbon group having 8 to 30 carbon atoms.
  • X 1 to X 7 are preferably all oxygen atoms. It is preferable that at least one of R 11 to R 13 is a hydrogen group and at least one is a hydrocarbon group having 1 to 30 carbon atoms. In addition, it is preferable that at least one of R 14 to R 16 is a hydrogen group and at least one is a hydrocarbon group having 1 to 30 carbon atoms.
  • Examples of the phosphorus compound represented by the general formula (1) include phosphorous acid, monothiophosphorous acid, dithiophosphorous acid, phosphorous acid monoester, monothiophosphorous acid monoester, dithiophosphorous acid monoester, phosphorous acid Acid diesters, monothiophosphite diesters, dithiophosphite diesters, phosphite triesters, monothiophosphite triesters, dithiophosphite triesters and the like. These may be used individually by 1 type as a phosphorus compound represented by General formula (1), and may be used in combination of 2 or more type.
  • Examples of the phosphorus compound represented by the general formula (2) include phosphoric acid, monothiophosphoric acid, dithiophosphoric acid, phosphoric monoester, monothiophosphoric monoester, dithiophosphoric monoester, phosphoric diester, monothiophosphoric diester, dithiophosphoric diester, Examples thereof include phosphoric acid triesters, monothiophosphoric acid triesters, and dithiophosphoric acid triesters. These may be used individually by 1 type as a phosphorus compound represented by General formula (2), and may be used in combination of 2 or more type.
  • the phosphorus compound represented by the general formula (2) from the viewpoint of improving the compatibility with (A), improving the adhesion, and improving the adhesion to the metal surface to be protected. Is more preferable.
  • an acidic phosphate ester represented by the following general formula (6) or the general formula (7) is particularly preferable.
  • the metal used in the composition with the specific phosphorus compound examples include alkali metals such as Li, Na, and K, alkaline earth metals such as Mg and Ca, aluminum, titanium, and zinc. These may be used alone or in combination of two or more. Since these metals have a relatively high ionization tendency, a high adsorptivity can be obtained on the metal surface. Further, for example, since the ionization tendency is higher than that of Sn, the ion binding property to Sn can be improved. Among these, Ca and Mg are more preferable from the viewpoint of water resistance.
  • the metal used in the composition with the phosphorus compound preferably has a valence of 2 or more from the viewpoint of increasing the molecular weight of the composition and improving heat resistance.
  • Examples of the metal supply source in the composition of the specific phosphorus compound and metal include a metal hydroxide and a metal carboxylate.
  • Examples of the carboxylic acid of the metal salt of carboxylic acid include salicylic acid, benzoic acid, and phthalic acid.
  • the metal salt of the carboxylic acid is a neutral salt, and may be a basic salt or an overbased salt. Of these, overbased salicylic acid and the like are preferable from the viewpoints of solubility during reaction, reactivity of metal ions, and the like.
  • the hydrocarbon groups of the specific phosphorus compound when at least one of the hydrocarbon groups of the specific phosphorus compound is a hydrocarbon group having 4 to 30 carbon atoms, Contributes to compatibility.
  • the hydrocarbon group is an organic group composed of carbon and hydrogen, and does not contain a hetero element such as N, O, or S.
  • the hydrocarbon group of the specific phosphorus compound is preferably an aliphatic hydrocarbon group or an alicyclic hydrocarbon group because of compatibility with the lubricating base oil that is a long-chain alkyl compound. More preferably, it is an aliphatic hydrocarbon group.
  • Examples of the aliphatic hydrocarbon group include an alkyl group composed of a saturated hydrocarbon and an alkenyl group composed of an unsaturated hydrocarbon, and any of these may be used.
  • the alkyl group or alkenyl group which is an aliphatic hydrocarbon group may have a linear or branched structure.
  • the alkyl group is a linear alkyl group such as n-butyl group or n-octyl group, the alkyl groups are easily oriented with each other, and the crystallinity of the composition of the specific phosphorus compound and metal is increased. The compatibility with the lubricating base oil tends to decrease.
  • an alkenyl group has one or more carbon-carbon double bond structures, so that even if it is linear, the crystallinity is not so high. For this reason, the alkenyl group may be linear or branched.
  • the specific phosphorus compound becomes inorganic.
  • certain phosphorus compounds have a strong tendency to crystallize. If it does so, compatibility with lubricating base oil will be bad, and it will not mix with base oil.
  • the hydrocarbon group has more than 30 carbon atoms, the viscosity of the specific phosphorus compound becomes too high, and the fluidity tends to decrease.
  • the number of carbon atoms of the hydrocarbon group is more preferably 5 or more, still more preferably 6 or more, from the viewpoint of compatibility with the lubricating base oil.
  • carbon number of a hydrocarbon group from viewpoints of fluidity
  • the composition of a specific phosphorus compound and metal has both a phosphoric acid group (polar group) and a nonpolar group (hydrocarbon group of an ester site) in the molecule.
  • a non-polymer can be a highly viscous liquid.
  • it can be brought into close contact with the metal surface by utilizing physical adsorption by van der Waals force when applied to the metal surface.
  • This viscosity is assumed to be obtained by entanglement of chain molecular chains. Therefore, from this viewpoint, it is preferable to design in a direction that does not promote crystallization of a specific phosphorus compound.
  • the hydrocarbon group has 4 to 30 carbon atoms, and the hydrocarbon group has one or more branched chain structures or one or more carbon-carbon double bond structures.
  • the specific phosphorus compound needs to be a composition with a metal.
  • the polarity of the phosphate group portion is small, the association property (cohesiveness) between the phosphate groups that are polar groups is low, and a highly viscous liquid do not become. For this reason, adhesiveness (viscosity) is low.
  • the polarity of the phosphoric acid group part is small, the association property (aggregation property) of the phosphoric acid groups which are polar groups is low, and it does not become a highly viscous liquid. For this reason, adhesiveness (viscosity) is low.
  • hydrocarbon group oleyl group, stearyl group, isostearyl group, 2-ethylhexyl group, butyloctyl group, isomyristyl group, isocetyl group, hexyldecyl group, octyldecyl group, octyldecyl group, An isobehenyl group etc. are mentioned.
  • Specific acid phosphates include butyl octyl acid phosphate, isomyristyl acid phosphate, isocetyl acid phosphate, hexyl decyl acid phosphate, isostearyl acid phosphate, isobehenyl acid phosphate, octyl decyl Acid Phosphate, Octyl Decyl Acid Phosphate, Isobutyl Acid Phosphate, 2-Ethyl Hexyl Acid Phosphate, Isodecyl Acid Phosphate, Lauryl Acid Phosphate, Tridecyl Acid Phosphate, Stearyl Acid Phosphate, Oleic Acid Phosphate, Myristyl Acid phosphate, palmityl acid phosphate, di-butyl octyl acid phosphate, di- Somyristyl acid phosphate, di-isocetyl acid phosphate, di-he
  • the molecular weight of the composition of the specific phosphorus compound and metal is preferably 3000 or less because the compatibility with the viscous material is improved by fine dispersion. More preferably, it is 2500 or less. Moreover, it is preferable that it is 80 or more from viewpoints, such as separation suppression by high concentration of a polar group. More preferably, it is 100 or more.
  • the molecular weight can be obtained by calculation.
  • an organic solvent in addition to the viscous substance (A) and the composition (B), an organic solvent, a stabilizer, a corrosion inhibitor, Dyes, thickeners, fillers and the like can be added.
  • the present protective agent composition preferably has a shear viscosity at 100 ° C. of 1000 mPa ⁇ s or more. Thereby, even if it exposes to high temperature, an outflow is easy to be suppressed. From this viewpoint, the shear viscosity is more preferably 1100 mPa ⁇ s or more, and still more preferably 1200 mPa ⁇ s or more. On the other hand, the shear viscosity is preferably 2500 mPa ⁇ s or less, more preferably 2000 mPa ⁇ s or less, considering the ease of application. The shear viscosity is represented by the viscosity at a temperature of 100 ° C.
  • Viscosity can be measured using a cone-plate rotational viscometer.
  • the shear viscosity can be adjusted by the kinematic viscosity of the lubricating base oil, the viscous material (A), the content of the composition (B), the content of the amide compound, and the like.
  • the present protective agent composition preferably has a softening point of 150 ° C or lower.
  • the softening point is more preferably 140 ° C. or lower, and further preferably the softening point is 130 ° C. or lower.
  • the present protective agent composition preferably has a softening point of 100 ° C or higher. More preferably, it is 110 degreeC or more, More preferably, it is 120 degreeC or more.
  • the softening point of the present protective agent composition can be adjusted by the type (melting point) of the amide compound in the viscous substance (A), the content of the viscous substance (A), the content of the amide compound, and the like.
  • the present protective agent composition can be obtained by mixing the viscous substance (A), the composition (B), and components added as necessary. It can also be obtained by mixing a lubricating base oil, an amide compound, a composition (B), and components added as necessary.
  • a viscous film is retained on the coated surface after application due to the viscosity of the viscous substance. If an amide compound having a higher melting point is used, the same consistency as that at room temperature is maintained at a high temperature below the melting point, and the viscous film is held on the coated surface.
  • a composition of a specific phosphorus compound and a metal acts as a metal adsorbing component, and contributes to an improvement in adhesion of the viscous film on the metal surface. Since the lubricating base oil has a kinematic viscosity at 100 ° C.
  • this protective agent composition suppresses outflow even when exposed to high temperatures, and stably protects the metal surface even when exposed to high temperatures.
  • the protective agent composition can be coated on the surface of the material to be coated by applying the protective agent composition on the surface of the material to be coated or immersing the material to be coated in the protective agent composition.
  • the film thickness of the viscous film to be applied to the surface of the material to be coated is preferably 100 ⁇ m or less from the viewpoint of preventing outflow from the coating site and preventing leakage. More preferably, it is 50 ⁇ m or less. On the other hand, from the viewpoint of the mechanical strength of the viscous film to be applied, the thickness is preferably not less than a predetermined thickness. Examples of the lower limit of the film thickness include 0.5 ⁇ m, 2 ⁇ m, and 5 ⁇ m.
  • This protective agent composition can be used for anticorrosion applications.
  • it can be used as an anticorrosion agent that adheres to the surface of a metal member to be surface protected and covers the metal surface to prevent metal corrosion.
  • it can use, for example as an anticorrosive of a covered electric wire with a terminal.
  • the coated electric wire with a terminal according to the present invention is the one in which the terminal metal fitting is connected to the conductor terminal of the insulated electric wire, and the viscous material composed of the lubricant base oil and the amide compound of the present protective agent composition, and the specified
  • the electrical connection part of a terminal metal fitting and an electric wire conductor was covered with the viscous film containing the composition of said phosphorus compound and a metal. This prevents corrosion at the electrical connection.
  • FIG. 1 is a perspective view of a covered electric wire with a terminal according to an embodiment of the present invention
  • FIG. 2 is a longitudinal sectional view taken along line AA in FIG.
  • the terminal-equipped covered electric wire 1 is configured such that the electric wire conductor 3 of the covered electric wire 2 in which the electric wire conductor 3 is covered with the insulating coating (insulator) 4 and the terminal fitting 5 are electrically connected by the electric connection portion 6. Connected.
  • the terminal fitting 5 includes a tab-like connection portion 51 made of an elongated flat plate connected to a counterpart terminal, a wire barrel 52 extending at the end of the connection portion 51, and an electric wire fixing portion made of an insulation barrel 53. 54.
  • the terminal fitting 5 can be formed (processed) into a predetermined shape by pressing a metal plate.
  • the insulation coating 4 at the end of the covered electric wire 2 is peeled off to expose the electric wire conductor 3, and the exposed electric wire conductor 3 is pressure-bonded to one side of the terminal fitting 5, thereby covering the electric wire 2. And the terminal fitting 5 are connected.
  • the wire barrel 52 of the terminal fitting 5 is crimped from above the wire conductor 3 of the covered electric wire 2 so that the wire conductor 3 and the terminal fitting 5 are electrically connected. Further, the insulation barrel 53 of the terminal fitting 5 is crimped from above the insulating coating 4 of the covered electric wire 2.
  • the range indicated by the alternate long and short dash line is covered with the viscous film 7 obtained from the present protective agent composition.
  • the insulation coating 4 after the rear end of the portion exposed from the insulation coating 4 of the wire conductor 3 from the surface of the terminal fitting 5 ahead of the tip is covered with the viscous film 7. That is, the tip 2 a side of the covered electric wire 2 is covered with the viscous film 7 so as to slightly protrude from the tip of the wire conductor 3 to the connecting portion 51 side of the terminal fitting 5.
  • the distal end 5 a side of the terminal fitting 5 is covered with the viscous film 7 so as to slightly protrude from the end of the insulation barrel 53 to the insulating coating 4 side of the covered electric wire 2.
  • the side surface 5 b of the terminal fitting 5 is also covered with the viscous film 7.
  • the back surface 5c of the terminal metal fitting 5 may not be covered with the viscous film 7, and may be covered.
  • the peripheral end of the viscous film 7 includes a portion that contacts the surface of the terminal fitting 5, a portion that contacts the surface of the electric wire conductor 3, and a portion that contacts the surface of the insulating coating 4.
  • the electrical connection portion 6 is covered with the viscous film 7 with a predetermined thickness.
  • the exposed portion of the wire conductor 3 of the covered wire 2 is completely covered with the viscous film 7 and is not exposed to the outside. Therefore, the electrical connection 6 is completely covered by the viscous film 7. Since the viscous film 7 is excellent in adhesion to all of the electric wire conductor 3, the insulation coating 4, and the terminal fitting 5, moisture or the like enters the electric conductor 3 and the electrical connection portion 6 from the outside by the viscous film 7. Prevent the metal parts from corroding.
  • the viscous film 7 and the electric wire conductor 3 are formed at the peripheral edge of the viscous film 7.
  • the present protective agent composition forming the viscous film 7 is applied in a predetermined range.
  • membrane 7 can use well-known means, such as a dripping method and a coating method.
  • the viscous film 7 is formed in a predetermined range with a predetermined thickness.
  • the thickness is preferably in the range of 0.01 to 0.1 mm. If the viscous film 7 becomes too thick, it becomes difficult to insert the terminal fitting 5 into the connector. If the viscous film 7 becomes too thin, the anticorrosion performance tends to be lowered.
  • the wire conductor 3 of the covered electric wire 2 is made of a stranded wire formed by twisting a plurality of strands 3a.
  • the stranded wire may be composed of one type of metal strand or may be composed of two or more types of metal strand.
  • the twisted wire may contain the strand etc. which consist of organic fibers other than a metal strand.
  • “consisting of one type of metal strand” means that all metal strands constituting the stranded wire are made of the same metal material, and “consisting of two or more types of metal strands” This means that the wire contains metal wires made of different metal materials.
  • the stranded wire may include a reinforcing wire (tension member) for reinforcing the covered electric wire 2.
  • Examples of the material of the metal wire constituting the wire conductor 3 include copper, a copper alloy, aluminum, an aluminum alloy, or a material obtained by applying various platings to these materials.
  • Examples of the material of the metal strand as the reinforcing wire include copper alloy, titanium, tungsten, and stainless steel.
  • Examples of the organic fiber as the reinforcing wire include Kevlar.
  • Examples of the material for the insulating coating 4 include rubber, polyolefin, PVC, and thermoplastic elastomer. These may be used alone or in combination of two or more.
  • Various additives may be appropriately added to the material of the insulating coating 4. Examples of the additive include a flame retardant, a filler, a colorant and the like.
  • Examples of the material (base material) of the terminal fitting 5 include various commonly used copper alloys, copper, and the like. A part (for example, a contact) or the entire surface of the terminal fitting 5 may be plated with various metals such as tin, nickel, and gold.
  • the terminal metal fitting is crimped and connected to the end of the wire conductor, but other known electrical connection methods such as welding may be used instead of the crimping connection.
  • the suspension was filtered, and methanol and produced water were distilled off under reduced pressure using a rotary evaporator.
  • the product water was distilled off azeotropically by distilling off under reduced pressure in the same manner to obtain a target product which was a clear viscous product.
  • ⁇ Preparation of surface protective agent composition In the blending composition (parts by mass) shown in Table 1, the viscous substance and the composition of the phosphorus compound and metal (phosphorus composition) are mixed at a predetermined ratio under heating at 160 ° C. Thus, a surface protective agent composition was prepared.
  • the surface protective agent composition heated to 160 ° C. and liquefied was applied so as to cover the copper terminal of the covered electric wire with terminal and the electrical connection portion of the aluminum electric wire. Then, it was left in a constant temperature bath at 100 ° C. for 168 hours. Before and after this high-temperature test, the appearance was observed. If no change in appearance was observed, a good “ ⁇ ” was given, and the surface protective agent composition was flowing out of the terminal or the viscous film was thermally deformed. Defect “x”.
  • the lubricating oil base oil has a kinematic viscosity at 100 ° C. of 10 mm 2 / s or more and a number average molecular weight of 400 or more, so that it can be used even when exposed to high temperatures. It can be seen that the outflow of the composition is suppressed and the anticorrosion performance is maintained even when exposed to high temperatures.
  • Example 1 Example 6, Example 8, Comparative Example 1, and Comparative Example 2, a viscous substance (A) composed of a lubricating base oil and an amide compound and a phosphorus-based composition (B) It can be seen that when the mass ratio is within the predetermined range of the present application, the outflow of the surface protective agent composition is suppressed even when exposed to high temperatures, and the anticorrosion performance is maintained even when exposed to high temperatures.
  • A a viscous substance
  • B a phosphorus-based composition
  • Comparative Example 1 is inferior in adhesion to the metal surface and does not satisfy the anticorrosion performance because the amount of the phosphorous composition (B) is small. Since the comparative example 2 has few viscous substances (A), it will flow out when exposed to high temperature. Thereby, it does not satisfy anticorrosion performance. In Comparative Example 3, since the viscosity of the lubricating base oil is low and the number average molecular weight is small, it flows out when exposed to high temperatures. This also does not satisfy the anticorrosion performance. Since Comparative Example 4 does not include the phosphorus composition (B) and the amide compound, the adhesion to the metal surface is inferior and the anticorrosion performance is not satisfied. Also, it flows out when exposed to high temperatures. This also does not satisfy the anticorrosion performance.

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