WO2019176885A1 - Câble et faisceau de câblage - Google Patents

Câble et faisceau de câblage Download PDF

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Publication number
WO2019176885A1
WO2019176885A1 PCT/JP2019/009823 JP2019009823W WO2019176885A1 WO 2019176885 A1 WO2019176885 A1 WO 2019176885A1 JP 2019009823 W JP2019009823 W JP 2019009823W WO 2019176885 A1 WO2019176885 A1 WO 2019176885A1
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Prior art keywords
mass
parts
layer
base resin
insulating layer
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PCT/JP2019/009823
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English (en)
Japanese (ja)
Inventor
亮 渡部
成一 平
学 佐々木
中村　詳一郎
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株式会社フジクラ
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Priority to JP2020506527A priority Critical patent/JPWO2019176885A1/ja
Publication of WO2019176885A1 publication Critical patent/WO2019176885A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • 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
    • 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
    • H01B7/02—Disposition of insulation
    • 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
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00—Compositions of unspecified macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/04—Polysiloxanes

Definitions

  • the present invention relates to a cable and a wire harness.
  • the cable has a transmission medium made of a conductor or an optical fiber and an insulating layer covering the transmission medium, and a flame retardant resin composition may be used for the insulating layer.
  • a flame retardant resin composition may be used for the insulating layer.
  • an insulating layer calcium carbonate particles blended at a ratio of 10 parts by mass or more with respect to 100 parts by mass of the base resin, a silicone compound blended at a ratio of more than 1 part by mass, A cable using a flame retardant resin composition containing a fatty acid-containing compound blended at a ratio of more than 3 parts by mass is disclosed. In this cable, the insulating layer has excellent flame retardancy.
  • the present invention has been made in view of the above circumstances, and an object thereof is to provide a cable and a wire harness having excellent wear resistance and internal peel resistance while maintaining good flame retardancy.
  • the present inventors first considered dividing the insulating layer into an outermost layer and an inner layer in the cable described in Patent Document 1. And, as a result of intensive studies, the present inventors have found that the outermost layer is a base resin and at least one inorganic particle selected from the group consisting of calcium carbonate particles and silicate compound particles as a flame retardant, a silicone compound And the amount of the fatty acid-containing compound in the inner layer with respect to 100 parts by mass of the base resin and the proportion of the fatty acid-containing compound in the outermost layer with respect to 100 parts by mass of the base resin are the wear resistance of the cable. It was found to be effective in improving the property and resistance to internal peeling.
  • the present inventors are effective to set the contents of the inorganic particles, the silicone-based compound, and the fatty acid-containing compound in the entire insulating layer to specific ranges, respectively. I found out. Thus, the present inventors have completed the present invention.
  • the present invention includes a transmission medium composed of a conductor or an optical fiber, and an insulating layer that covers the transmission medium, and the insulating layer includes an outermost layer and an inner layer provided inside the outermost layer.
  • the outermost layer contains a base resin and a flame retardant, and the flame retardant comprises at least one inorganic particle selected from the group consisting of calcium carbonate particles and silicate compound particles, and a silicone compound, A fatty acid-containing compound, the content of the inorganic particles in the insulating layer is 0.03 to 7.00 mass%, and the content of the silicone compound in the insulating layer is 0.01 to 4.
  • the content of the fatty acid-containing compound in the insulating layer is 0.02 to 7.50% by mass
  • the blending ratio of the fatty acid-containing compound in the inner layer to 100 parts by mass of the base resin is Outer layer Is less cable than the blending ratio relative to the base resin 100 parts by weight of the fatty acid-containing compound.
  • the cable of the present invention has excellent wear resistance and internal peel resistance while maintaining good flame retardancy.
  • the base resin 100 mass of the fatty acid-containing compound in the inner layer is more than the blending ratio of the fatty acid-containing compound in the inner layer to 100 parts by mass of the base resin in the outermost layer.
  • the blending ratio with respect to the part is smaller than the blending ratio with respect to 100 parts by weight of the fatty acid-containing compound in the outermost layer, not only the inner layer and the conductor but also the inner layer and the outermost layer are less likely to peel. , Peeling in the cable (internal peeling) is less likely to occur.
  • the blending ratio of the fatty acid-containing compound with respect to 100 parts by mass of the base resin in the outermost layer is determined while setting the content of the fatty acid-containing compound in the entire insulating layer to a value within a specific range. If the proportion of the fatty acid-containing compound is larger than 100 parts by mass of the base resin in the inner layer, the wear resistance of the insulating layer can be further improved. Further, the insulating layer contains inorganic particles that can form a barrier layer on the surface of the base resin during combustion, a silicone-based compound, and a fatty acid-containing compound at a specific content or more, thereby maintaining good flame retardancy in the cable. You can also.
  • the base resin 100 is formed in the outermost layer while keeping the content of the fatty acid-containing compound in the entire insulating layer within a specific range. If the blending ratio of the fatty acid-containing compound with respect to part by mass is larger than the blending ratio of the fatty acid-containing compound with respect to 100 parts by mass of the base resin in the inner layer, the flame retardancy can be further improved. For this reason, the present inventors speculate that the above-mentioned effect may be obtained.
  • the blending ratio of the fatty acid-containing compound in the inner layer to 100 parts by mass of the base resin is preferably less than 3.0 parts by mass.
  • the internal peel resistance of the cable can be further improved as compared with the case where the blending ratio of the fatty acid-containing compound in the inner layer to 100 parts by mass of the base resin is 3.0 parts by mass or more.
  • the blending ratio of the silicone compound in the inner layer to 100 parts by mass of the base resin is preferably smaller than the blending ratio of the silicone compound in the outermost layer to 100 parts by mass of the base resin.
  • the internal peeling resistance in the cable and Flame retardancy can be improved more sufficiently.
  • a blending ratio of the inorganic particles in the inner layer with respect to 100 parts by weight of the base resin is smaller than a blending ratio of the inorganic particles in the outermost layer with respect to 100 parts by weight of the base resin.
  • the abrasion resistance and flame retardancy of the cable are compared with the case where the blending ratio of the inorganic particles in the inner layer to 100 parts by weight of the base resin is equal to or more than the blending ratio of the inorganic particles in the outermost layer to 100 parts by weight of the base resin. Can be improved more sufficiently.
  • the cross-sectional area ratio of the outermost layer in the insulating layer is preferably 0.5% or more and less than 86%.
  • the flame retardancy of the cable can be further improved as compared with the case where the cross-sectional area ratio is less than 0.5%. Moreover, compared with the case where a cross-sectional area ratio exceeds 86%, while being able to improve the abrasion resistance of a cable, the cost of a cable can be reduced more and a cable can be reduced in weight.
  • the outermost layer preferably has a thickness of 0.008 to 0.400 mm.
  • the flame retardancy of the cable can be further improved as compared with the case where the thickness of the outermost layer is less than 0.008 mm. Moreover, compared with the case where the thickness of outermost layer exceeds 0.400 mm, a cable can be reduced in weight and diameter, and the abrasion resistance and lead-out workability of the cable can be further improved.
  • the specific gravity of the insulating layer is preferably 0.84 to 1.04.
  • the flame retardancy of the cable can be further improved as compared with the case where the specific gravity of the insulating layer is less than 0.84.
  • the cable can be reduced in weight and the wear resistance of the cable can be further improved as compared with the case where the specific gravity of the insulating layer exceeds 1.04.
  • the base resin of the inner layer and the outermost layer includes a polyolefin resin.
  • flame retardancy and wear resistance can be further improved as compared with the case where the base resin of the inner layer and the outermost layer does not contain a polyolefin resin.
  • the inner layer is composed of a resin composition containing the base resin, and the content of the propylene-based resin in the base resin is greater than 80% by mass, and the resin composition has a temperature of 230 ° C. and 2.16 kg. It is preferable that MFR in heavy is 1.0 g / 10min or more and less than 15.0g / 10min.
  • the abrasion resistance of the cable is further improved as compared with the case where the content of the propylene resin in the base resin of the inner layer is 80% by mass or less. Further, the appearance of the cable is more excellent as compared with the case where the MFR of the resin composition is less than 1.0 g / 10 minutes. Moreover, the abrasion resistance of a cable improves more compared with the case where MFR of a resin composition is 15.0 g / 10min or more.
  • the conductor is preferably aluminum or an aluminum alloy.
  • the weight of the cable can be reduced as compared with the case where copper or the like is used as the conductor.
  • the cable may further include a covering layer that covers the insulating layer described above.
  • this cable Since this cable has excellent wear resistance and internal peel resistance while maintaining good flame resistance even without a coating layer, it has excellent flame resistance while maintaining good flame resistance. It becomes possible to have wear resistance and internal peeling resistance.
  • the present invention is a wire harness having the cable described above.
  • the wire harness of the present invention has a cable having excellent wear resistance and internal peel resistance while maintaining good flame retardancy, it has excellent wear resistance while maintaining good flame resistance. It becomes possible to have internal peel resistance.
  • a cable and a wire harness having excellent wear resistance and internal peel resistance while maintaining good flame retardancy are provided.
  • FIG. 2 is a cross-sectional view taken along line II-II in FIG. It is sectional drawing which shows one Embodiment of the wire harness of this invention.
  • FIG. 1 is a partial side view showing an embodiment of a cable according to the present invention.
  • FIG. 2 is a sectional view taken along line II-II in FIG.
  • the cable 10 includes an insulated wire 4 and a coating layer 3 that covers the insulated wire 4.
  • the insulated wire 4 has the conductor 1 as a transmission medium which transmits a signal, and the insulating layer 2 which coat
  • FIG. The insulating layer 2 includes an outermost layer 2B and an inner layer 2A provided inside the outermost layer 2B.
  • the outermost layer 2B of the insulating layer 2 includes a base resin and a flame retardant, and the flame retardant includes at least one inorganic particle selected from the group consisting of calcium carbonate particles and silicate compound particles, and silicone.
  • a system compound and a fatty acid-containing compound The content of the inorganic particles in the insulating layer 2 is 0.03 to 7.00% by mass, the content of the silicone compound in the insulating layer 2 is 0.01 to 4.30% by mass, and the insulating layer 2 The content of the fatty acid-containing compound is 0.02 to 7.50% by mass.
  • the compounding ratio with respect to 100 mass parts of fatty acid containing compounds contained in 2 A of inner layers among the insulating layers 2 is less than the mixing ratio with respect to 100 mass parts of base resin of fatty acid containing compounds contained in the outermost layer 2B.
  • the insulated wire 4 has excellent wear resistance and internal peel resistance while maintaining good flame retardancy.
  • the cable 10 can also have excellent wear resistance and internal peel resistance while maintaining good flame retardancy.
  • the conductor 1 may be configured by only one strand, or may be configured by bundling a plurality of strands.
  • the material of the conductor 1 is not particularly limited, but is preferably aluminum or an aluminum alloy. In this case, compared with the case where copper etc. are used as the conductor 1, the insulated wire 4 and by extension, the cable 10 can be reduced in weight.
  • the cross-sectional area of the conductor 1 it is not particularly limited, in view of the small-diameter and weight, preferably less than 5 mm 2, and more preferably 3 mm 2 or less. However, from the viewpoint of the strength and conductivity of the conductor 1, the cross-sectional area of the conductor 1 is preferably 0.13 mm 2 or more.
  • the insulating layer 2 is composed of the outermost layer 2 ⁇ / b> B and the inner layer 2 ⁇ / b> A provided inside the outermost layer 2.
  • the insulating layer 2 includes a base resin and a flame retardant, and the flame retardant includes at least one inorganic particle selected from the group consisting of calcium carbonate particles and silicate compound particles, a silicone compound, and a fatty acid-containing compound. including.
  • the content of inorganic particles in the insulating layer 2 is 0.03 to 7.00 mass%.
  • the flame retardancy of the insulated wire 4 can be further improved.
  • the abrasion resistance of the insulated wire 4 can be improved more.
  • the content of the inorganic particles in the insulating layer 2 is preferably 0.20 to 5.50% by mass, and more preferably 0.40 to 4.00% by mass.
  • the content of the silicone compound in the insulating layer 2 is 0.01 to 4.30% by mass. In this case, compared with the case where the content rate of the silicone type compound in the insulating layer 2 is less than 0.01 mass%, the flame retardance of the insulated wire 4 can be improved more. Moreover, when the content rate of a silicone type compound exists in the said range, compared with the case where the content rate of the silicone type compound in the insulating layer 2 exceeds 4.30 mass%, the abrasion resistance and internal resistance of the insulated wire 4 are exceeded. The peelability can be further improved.
  • the content of the silicone compound in the insulating layer 2 is preferably 0.04 to 2.80% by mass, and more preferably 0.08 to 2.10% by mass.
  • the content of the fatty acid-containing compound in the insulating layer 2 is 0.02 to 7.50% by mass.
  • the flame retardance of the insulated wire 4 can be further improved as compared with the case where the content of the fatty acid-containing compound in the insulating layer 2 is less than 0.02% by mass.
  • the abrasion resistance and internal peeling resistance of the insulated wire 4 can be improved more.
  • the content of the fatty acid-containing compound in the insulating layer 2 is preferably 0.07 to 4.00% by mass, and more preferably 0.16 to 2.10% by mass.
  • the general formula of the mass percentage of the silicone compound and the fatty acid-containing compound in the outermost layer 2B can be calculated as follows.
  • L, A 1 to A 3 , B 1 to B 3 , S A , S B , ⁇ A and ⁇ B are as follows.
  • a 1 Content of inorganic particles in inner layer 2A (mass%)
  • a 2 Content of silicone compound in inner layer 2A (% by mass)
  • a 3 Content of fatty acid-containing compound in the inner layer 2A (% by mass)
  • B 1 Content (% by mass) of inorganic particles in the outermost layer 2B
  • B 2 Content of silicone compound in outermost layer 2B (% by mass)
  • B 3 Content of fatty acid-containing compound in outermost layer 2B (% by mass)
  • S A sectional area of inner layer 2A (mm 2 )
  • S B Cross-sectional area of outermost layer 2B (mm 2 ) ⁇
  • the specific gravity of the insulating layer 2 is not particularly limited, but is preferably 0.84 to 1.04. In this case, compared with the case where the specific gravity of the insulating layer 2 is less than 0.84, the flame retardance of the insulated wire 4 can be improved more. Moreover, compared with the case where the specific gravity of the insulating layer 2 exceeds 1.04, the insulated wire 4 can be reduced in weight and the wear resistance of the insulated wire 4 can be further improved.
  • the specific gravity of the insulating layer 2 is more preferably 0.99 or less. In this case, since the insulating layer 2 can float in water, the insulating layer 2 peeled off from the insulated wire 4 can be easily floated on the water and collected, and the efficiency of the recycling work can be improved. Furthermore, the specific gravity of the insulating layer 2 is preferably less than 0.97. In this case, since the insulating layer 2 is further reduced in weight, the insulated wire 4 is also reduced in weight. Moreover, when the insulating layer 2 peeled off from the insulated wire 4 is poured into water, the ascending speed becomes very fast, and the efficiency of the recycling work can be further increased. In particular, the specific gravity of the insulating layer 2 is preferably less than 0.95. In this case, the wear resistance of the cable 10 can be further improved as compared with the case where the specific gravity of the insulating layer 2 is 0.95 or more.
  • the insulating layer 2 does not have voids inside due to foaming or the like. In this case, the insulated wire 4 can obtain more excellent mechanical characteristics.
  • the base resin in the insulating layer 2 should just be comprised with resin, and polyolefin resin, polyamide resin, polyester resin, styrene resin etc. are mentioned as resin. These can be used alone or in admixture of two or more.
  • the resin includes rubber and elastomer.
  • the resin should just be comprised by at least 1 sort (s) selected from polyolefin resin etc., rubber
  • the base resin may or may not contain a polyolefin resin, but preferably contains a polyolefin resin. In this case, compared with the case where base resin does not contain polyolefin resin, a flame retardance and abrasion resistance can be improved more.
  • polystyrene resin examples include non-polar group-containing polyolefins such as polyethylene (PE), propylene resin, polybutene, and polymethylpentene, polar group-containing polyolefins, and olefin-based thermoplastic elastomers. These can be used alone or in combination of two or more.
  • the polyolefin resin is preferably PE or a propylene resin from the viewpoint of cost and specific gravity, and is preferably a propylene resin from the viewpoint of heat resistance and wear resistance.
  • the propylene-based resin is a resin containing propylene as a structural unit, and examples of the propylene-based resin include homopolypropylene, propylene block copolymer, and propylene random copolymer. These can be used alone or in combination of two or more. Among these, a propylene block copolymer is preferable from the viewpoint of impact resistance and low temperature brittleness.
  • the polar group-containing polyolefin is a polyolefin containing a polar group.
  • Examples of the polar group of the polar group-containing polyolefin include a maleic acid group, a methacrylic acid group, a fumaric anhydride group, a maleic anhydride group, a hydroxyl group, and a carboxyl group.
  • a maleic anhydride group is preferable.
  • the wear resistance of the insulating layer 2 can be further improved. For this reason, the deterioration of the mechanical properties of the insulating layer 2 can be more sufficiently suppressed.
  • Examples of the polar group-containing polyolefin include ethylene-vinyl acetate copolymer (EVA), ethylene-ethyl acrylate copolymer (EEA), ethylene-butyl acrylate copolymer (EBA), their maleic anhydride-modified polymers, Examples thereof include maleic anhydride-modified polypropylene and ethylene- ⁇ -olefin copolymers modified with an unsaturated carboxylic acid such as maleic acid and maleic anhydride.
  • EVA ethylene-vinyl acetate copolymer
  • EAA ethylene-ethyl acrylate copolymer
  • EBA ethylene-butyl acrylate copolymer
  • maleic anhydride-modified polymers examples thereof include maleic anhydride-modified polypropylene and ethylene- ⁇ -olefin copolymers modified with an unsaturated carboxylic acid such as maleic acid and maleic anhydride.
  • the content of the polar group-containing polyolefin in the polyolefin resin is not particularly limited, but is preferably 1 to 10% by mass.
  • the compatibility between the polyolefin resin and the flame retardant is further increased. The occurrence of bloom can be more sufficiently suppressed, and the wear resistance of the insulating layer 2 can be further improved.
  • the content of the polar group-containing polyolefin in the polyolefin resin is more preferably 2 to 5% by mass.
  • the base resin may be cross-linked or not cross-linked, but is preferably cross-linked.
  • the crosslinking include silane crosslinking, electron beam crosslinking, and peroxide crosslinking. Of these, silane crosslinking is preferred. Silane crosslinking does not require sophisticated equipment as compared with electron beam crosslinking, and the base resin can be sufficiently crosslinked even if the inner layer 2A or the outermost layer 2B is thick. Silane cross-linking can sufficiently suppress the occurrence of scorch during extrusion compared to peroxide cross-linking.
  • the inorganic particles in the insulating layer 2 are intended to improve the flame retardancy of the insulated wire 4 by forming a barrier layer against the base resin together with the silicone compound and the fatty acid-containing compound when the insulated wire 4 is burned.
  • Inorganic particles include calcium carbonate particles and silicate compound particles. These can be used alone or in admixture of two or more. Use of calcium carbonate particles, silicate compound particles, or a mixture thereof as inorganic particles can effectively improve the flame retardancy in a small amount compared to metal hydroxides such as magnesium hydroxide. It is possible to reduce the weight of the layer 2 and hence the insulated wire 4.
  • the calcium carbonate particles may be either heavy calcium carbonate or light calcium carbonate.
  • Examples of the silicate compound particles include talc particles and clay particles.
  • the average particle diameter of the inorganic particles is not particularly limited, but is preferably 0.7 ⁇ m or more. In this case, more excellent flame retardancy can be obtained as compared with the case where the average particle size of the inorganic particles is less than 0.7 ⁇ m. However, the average particle size of the inorganic particles is preferably 1.8 ⁇ m or less. In this case, the wear resistance of the insulating layer 2 and the coating layer 3 can be improved as compared with the case where the average particle size of the inorganic particles exceeds 1.8 ⁇ m.
  • the silicone compound in the insulating layer 2 functions as a flame retardant, and examples of the silicone compound include polyorganosiloxane.
  • the polyorganosiloxane has a siloxane bond as a main chain and an organic group in a side chain.
  • the organic group include alkyl groups such as a methyl group, an ethyl group, and a propyl group; a vinyl group; and an aryl group such as a phenyl group.
  • the polyorganosiloxane examples include dimethylpolysiloxane, methylethylpolysiloxane, methyloctylpolysiloxane, methylvinylpolysiloxane, methylphenylpolysiloxane, and methyl (3,3,3-trifluoropropyl) polysiloxane. Is mentioned.
  • the polyorganosiloxane include silicone powder, silicone oil, silicone gum, and silicone resin. Among these, silicone gum is preferable. In this case, compared to the case where the silicone compound is a silicone compound other than silicone gum, blooming is less likely to occur in the insulating layer 2 and the flame retardancy of the insulating layer 2 can be further improved.
  • the silicone compound may be attached in advance to the surface of the inorganic particles.
  • a silicone compound is added to and mixed with calcium carbonate particles to obtain a mixture, and then the mixture is dried at 40 to 75 ° C. for 10 to 40 minutes. And a method of pulverizing the dried mixture with a Henschel mixer, an atomizer or the like.
  • the fatty acid-containing compound in the insulating layer 2 functions as a flame retardant.
  • the fatty acid-containing compound refers to a fatty acid or a metal salt thereof.
  • a fatty acid having 12 to 28 carbon atoms is used as the fatty acid.
  • examples of such fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, tuberculostearic acid, oleic acid, linoleic acid, arachidonic acid, behenic acid and montanic acid.
  • stearic acid is preferable as the fatty acid. In this case, compared with the case where fatty acids other than stearic acid are used, the flame retardance of the insulating layer 2 can be further improved.
  • the metal constituting the fatty acid metal salt examples include magnesium, calcium, zinc and lead.
  • the fatty acid metal salt magnesium stearate or zinc stearate is preferable. In this case, compared with the case where fatty acid metal salts other than magnesium stearate or zinc stearate are used, the flame retardance of the insulating layer 2 can be further improved with a smaller addition amount.
  • magnesium stearate is particularly preferred.
  • the inner layer 2A contains a base resin.
  • the inner layer 2A may further contain at least one of inorganic particles consisting of at least one selected from the group consisting of calcium carbonate particles and silicate compound particles, a silicone-based compound, and a fatty acid-containing compound. It does not have to be.
  • the inner layer 2A may be a single layer or a multilayer body composed of two or more layers.
  • the blending ratio (F1) of the fatty acid-containing compound in the inner layer 2A with respect to 100 parts by weight of the base resin is smaller than the blending ratio (F2) of the fatty acid-containing compound in the outermost layer 2B with respect to 100 parts by weight of the base resin.
  • F1 is F2 or more
  • not only the separation between the inner layer 2A and the conductor 1 but also the separation between the inner layer 2A and the outermost layer 2B can be more sufficiently suppressed. That is, the internal peel resistance of the insulated wire 4 can be further improved.
  • F2-F1 is not particularly limited as long as it is larger than 0 parts by mass, but it is preferably 3.0 parts by mass or more. In this case, compared to the case where F2-F1 is less than 3.0 parts by mass, the internal peel resistance and flame resistance of the insulated wire 4 can be improved more effectively.
  • F2-F1 is more preferably 5.0 parts by mass or more. However, F2-F1 is more preferably 20.0 parts by mass or less.
  • the internal peel resistance of the insulated wire 4 can be sufficiently improved as compared with the case where F2-F1 exceeds 20.0 parts by mass. More preferably, F2-F1 is 10 parts by mass or less. In this case, the internal peel resistance can be further improved.
  • F1 is not particularly limited, but is preferably less than 3.0 parts by mass. In this case, compared with the case where F1 is 3.0 parts by mass or more, the internal peel resistance of the insulated wire 4 can be further improved. However, F1 is more preferably 2.0 parts by mass or less.
  • the blending ratio (C1) of the inorganic particles in the inner layer 2A with respect to 100 parts by mass of the base resin may be less than the blending ratio (C2) of the inorganic particles in the outermost layer 2B with respect to 100 parts by mass of the base resin or C2 or more.
  • C1 is preferably less than C2. In this case, compared with the case where C1 is C2 or more, the abrasion resistance in the insulated wire 4 can be improved more sufficiently.
  • C2-C1 is not particularly limited, but is preferably 6.0 parts by mass or more. In this case, compared with the case where C2-C1 is less than 6.0 mass parts, the flame retardance in the insulated wire 4 can be improved more effectively.
  • C2-C1 is more preferably 8.0 parts by mass or more.
  • C2-C1 is more preferably 20.0 parts by mass or less. In this case, the wear resistance of the insulated wire 4 can be more sufficiently improved than when C2-C1 exceeds 20.0 parts by mass.
  • C1 is not particularly limited, but is preferably 8.0 parts by mass or less. In this case, compared with the case where C1 exceeds 8.0 mass parts, the abrasion resistance in the insulated wire 4 can be improved more. However, C1 is more preferably 3.0 parts by mass or less.
  • the blending ratio (S1) of the silicone compound in the inner layer 2A with respect to 100 parts by weight of the base resin is at least S2 or less than the blending ratio (S2) of the silicone compound in the outermost layer 2B with respect to 100 parts by weight of the base resin.
  • S1 is less than S2.
  • the internal peel resistance of the insulated wire 4 can be more sufficiently improved.
  • S2-S1 is not particularly limited, but is preferably 1.5 parts by mass or more. In this case, compared to the case where S2-S1 is less than 1.5 parts by mass, the internal peel resistance and flame retardancy of the insulated wire 4 can be improved more effectively.
  • S2-S1 is more preferably 3.0 parts by mass or more. However, S2-S1 is more preferably 10.0 parts by mass or less. In this case, the internal peel resistance of the insulated wire 4 can be more sufficiently improved than when S2-S1 exceeds 10.0 parts by mass.
  • S1 is not particularly limited, but is preferably 2.5 parts by mass or less. In this case, compared to the case where S1 exceeds 2.5 parts by mass, the bloom of the silicone compound is less likely to occur, and the internal peel resistance of the insulated wire 4 can be further improved. However, S1 is more preferably 1.5 parts by mass or less.
  • the base resin is not particularly limited, but is preferably a base resin in which the content of the propylene-based resin is larger than 80% by mass.
  • the wear resistance of the insulated wire 4 can be further improved as compared with the case where the content of the propylene-based resin in the base resin is 80% by mass or less.
  • the MFR at 230 ° C. and 2.16 kg weight of the resin composition constituting the inner layer 2A is 1.0 g / 10 It is preferable that it is 15.0 g / 10 min or more. In this case, the appearance of the insulated wire 4 is more excellent as compared with the case where the MFR of the resin composition is less than 1.0 g / 10 minutes. Moreover, abrasion resistance improves more compared with the case where MFR of a resin composition is 15.0 g / 10min or more. However, the MFR of the resin composition is more preferably 3.0 g / 10 min or more and less than 10.0 g / 10 min.
  • the inner layer 2A may further contain a filler such as an antioxidant, a metal deactivator, an ultraviolet degradation inhibitor, a processing aid, a color pigment, a lubricant, and carbon black as necessary.
  • a filler such as an antioxidant, a metal deactivator, an ultraviolet degradation inhibitor, a processing aid, a color pigment, a lubricant, and carbon black as necessary.
  • the outermost layer 2B includes a base resin and a flame retardant, and the flame retardant includes at least one inorganic particle selected from the group consisting of calcium carbonate particles and silicate compound particles, a silicone compound, and a fatty acid-containing compound. including.
  • the blending ratio F2 of the fatty acid-containing compound with respect to 100 parts by mass of the base resin is not particularly limited, but is preferably 3 to 20 parts by mass. In this case, compared with the case where F2 is less than 3 mass parts, the flame retardance of the insulated wire 4 can be improved more. Moreover, compared with the case where F2 exceeds 20 mass parts, the abrasion resistance of the insulated wire 4 can be improved more.
  • F2 is more preferably 4.0 parts by mass or more and less than 14.0 parts by mass, and particularly preferably 5.0 parts by mass or more and less than 8.0 parts by mass.
  • the mixing ratio (C2) of the inorganic particles with respect to 100 parts by mass of the base resin is not particularly limited, but is preferably 6 to 20 parts by mass. In this case, compared with the case where C2 is less than 6 mass parts, the flame retardance of the insulated wire 4 can be improved more. Moreover, compared with the case where C2 exceeds 20 mass parts, the abrasion resistance of the insulated wire 4 can be improved more.
  • C2 is more preferably 7.0 parts by mass or more and less than 17.0 parts by mass, and particularly preferably 8.0 parts by mass or more and less than 15.0 parts by mass.
  • the blending ratio (S2) of the silicone compound with respect to 100 parts by mass of the base resin is not particularly limited, but is preferably 1.5 to 10 parts by mass. In this case, compared with the case where S2 is less than 1.5 mass parts, the flame retardance of the insulated wire 4 can be improved more. Moreover, compared with the case where S2 exceeds 10 mass parts, the bloom of a silicone type compound becomes difficult to occur and the wear resistance of the insulated wire 4 can be further improved. S2 is more preferably 3.0 parts by mass or more and less than 9.0 parts by mass, and particularly preferably 4.0 parts by mass or more and less than 7.0 parts by mass.
  • the cross-sectional area ratio (R) of the outermost layer 2B in the insulating layer 2 is not particularly limited, but is preferably 0.5% or more and less than 86%. In this case, compared with the case where the cross-sectional area ratio R is less than 0.5%, the flame retardance of the insulated wire 4 can be further improved. Moreover, compared with the case where cross-sectional area ratio R exceeds 86%, while being able to improve the abrasion resistance of the insulated wire 4, the cost of the insulated wire 4 can be reduced more and the insulated wire 4 can be reduced in weight. .
  • the cross-sectional area ratio R is calculated using the following equation.
  • R 100 ⁇ (2r + 2t2 + t1) ⁇ t1 / (2r + t2 + t1) ⁇ (t2 + t1) (In the above formula, r represents the radius of the conductor 1, t2 represents the thickness of the inner layer 2A, and t1 represents the thickness of the outermost layer 2B.)
  • the cross-sectional area ratio R is more preferably 50% or less, and even more preferably 30% or less. In this case, compared with the case where the cross-sectional area ratio R exceeds 50%, the wear resistance or lead processability of the cable 10 can be further improved.
  • the cross-sectional area ratio R is more preferably 1% or more, and even more preferably 2.5% or more. In this case, the cable 10 can have more excellent flame retardancy.
  • the thickness t1 of the outermost layer 2B is not particularly limited, but is preferably 0.008 to 0.400 mm. In this case, compared with the case where thickness t1 is less than 0.008 mm, the flame retardance of the insulated wire 4 can be improved more. Moreover, compared with the case where thickness t1 exceeds 0.400 mm, while the insulated wire 4 can be reduced in weight and diameter, the abrasion resistance and lead-out workability of the insulated wire 4 can be improved more.
  • the thickness t1 of the outermost layer 2B is more preferably 0.010 to 0.200 mm, and particularly preferably 0.020 to 0.100 mm.
  • the insulated wire 4 can be further reduced in weight and the wear resistance can be further improved.
  • the flame retardance of the insulated wire 4 can be improved more compared with the case where the thickness t1 of the outermost layer 2B is less than 0.010 mm.
  • the outermost layer 2B may further contain a filler such as an antioxidant, a metal deactivator, an ultraviolet degradation inhibitor, a processing aid, a color pigment, a lubricant, and carbon black as necessary.
  • a filler such as an antioxidant, a metal deactivator, an ultraviolet degradation inhibitor, a processing aid, a color pigment, a lubricant, and carbon black as necessary.
  • the covering layer 3 protects the insulating layer 2 from physical or chemical damage.
  • the thickness of the coating layer 3 is not particularly limited, but is preferably less than 2.0 mm. In this case, the weight of the cable 10 can be further reduced as compared with the case where the thickness of the covering layer 3 is 2.0 mm or more.
  • the thickness of the coating layer 3 is more preferably 1.0 mm or less, and further preferably 0.5 mm or less. However, from the viewpoint of wear resistance, the thickness of the coating layer 3 is preferably 0.2 mm or more.
  • conductor 1 is prepared.
  • the insulated wire 4 is obtained by covering the conductor 1 with the insulating layer 2.
  • the insulating layer 2 may be formed by simultaneously forming the inner layer 2A and the outermost layer 2B, or by forming the outermost layer 2B on the inner layer 2A after forming the inner layer 2A. Also good.
  • the inner layer 2A and the outermost layer 2B may be formed by preparing an inner layer resin composition for forming the inner layer 2A and an outermost layer resin composition for forming the outermost layer 2B, respectively, and extruding them. it can.
  • Examples of the method for forming the insulating layer 2 on the conductor 1 include three methods: a co-extrusion method, a tandem extrusion method, and a separate extrusion method.
  • the inner layer resin composition discharged from the crosshead is coated on the conductor 1 to form the inner layer 2A, and immediately after obtaining the inner layer coated electric wire, the outermost layer resin composition is continued in the same crosshead.
  • the outermost layer 2B is formed by extruding and coating on the inner-layer coated electric wire.
  • the inner layer resin composition discharged from the cross head is coated on the conductor 1 to form the inner layer 2A, and after obtaining the inner layer covered electric wire, the inner layer resin wire is discharged from another cross head on the same extrusion line.
  • the outermost layer 2B is formed by coating the outermost layer resin composition on the inner-layer coated electric wire.
  • the inner layer resin composition discharged from the crosshead is coated on the conductor 1 to form the inner layer 2A, the inner layer covered electric wire is obtained, wound once on the bobbin, and then wound up.
  • the outermost layer resin composition discharged from the same crosshead or another crosshead is coated on the inner coated wire to form the outermost layer.
  • a co-extrusion method and a tandem extrusion method are preferable because continuous production is possible.
  • the coextrusion method is particularly preferable.
  • the adhesion between the inner layer 2A and the outermost layer 2B is increased, and the peeling between the inner layer 2A and the outermost layer 2 is further improved. It can be suppressed sufficiently.
  • the coating layer 3 can also be formed by preparing a coating layer resin composition for forming the coating layer 3 and extruding it using an extruder.
  • the cable 10 is obtained as described above.
  • the present invention is not limited to the above embodiment.
  • the cable 10 has one insulated wire 4 in the above embodiment
  • the cable of the present invention may have two or more insulated wires 4 inside the coating layer 3.
  • the cable 10 has the covering layer 3, but the covering layer 3 may be omitted.
  • the cable 10 whose transmission medium is the conductor 1 is used in the above embodiment, the cable of the present invention may be an optical fiber cable in which the transmission medium is replaced from the conductor 1 to the optical fiber in the cable 10. Good.
  • the covering layer 3 may be omitted.
  • FIG. 3 is a cross-sectional view showing an embodiment of the wire harness of the present invention.
  • the wire harness 20 includes a tape 21 that bundles a plurality of (four in FIG. 3) insulated wires 4 as cables.
  • the tape 21 does not need to cover the plurality of insulated wires 4 entirely along the length direction, and partially covers the plurality of insulated wires 4 at a necessary position along the length direction. If you do.
  • this wire harness 20 has the insulated wire 4 having excellent wear resistance and internal peel resistance while maintaining good flame retardancy, it has excellent wear resistance while maintaining good flame retardancy. And it becomes possible to have internal peel resistance.
  • the wire harness 20 includes a plurality of insulated wires 4 as cables, but may include only one insulated wire 4.
  • the cable 10 can be used instead of the insulated wire 4.
  • the wire harness 20 includes only the insulated wire 4 as a cable inside the tape 21, but may include two types of the insulated wire 4 and the cable 10.
  • the wire harness 20 includes a tape 21, but the wire harness 20 may use a binding band, a corrugated tube, or the like instead of the tape 21.
  • Example 1 to 109 and Comparative Examples 1 to 42 ⁇ Outermost layer resin composition> A base resin, a silicone masterbatch (silicone MB), a fatty acid-containing compound, inorganic particles, and magnesium hydroxide were blended in the blending amounts shown in Tables 1 to 16, and a twin-screw extruder (manufactured by Nippon Steel Works, cylinder diameter 32 mm) Kneaded to obtain an outermost resin composition.
  • the unit of the blending amount of each blending component is part by mass.
  • the silicone MB also contains a resin. If the blending amount in the column of the base resin and the blending amount of the resin in the silicone MB are summed, the sum is 100 parts by mass.
  • ⁇ Inner layer resin composition A base resin, a silicone masterbatch (silicone MB), a fatty acid-containing compound, inorganic particles, and magnesium hydroxide were blended in the blending amounts shown in Tables 1 to 16, and a twin-screw extruder (manufactured by Nippon Steel Works, cylinder diameter 32 mm) Were kneaded to obtain an inner layer resin composition.
  • the unit of the blending amount of each blending component is part by mass.
  • the silicone MB also contains a resin.
  • the sum is 100 parts by mass.
  • MFRs at 230 ° C. and 2.16 kg weight are shown in Tables 1 to 16.
  • “ ⁇ ” in the MFR column indicates that the inner layer resin composition did not flow at 230 ° C., and MFR could not be measured.
  • base resin silicone MB
  • fatty acid-containing compound fatty acid-containing compound
  • inorganic particles inorganic particles
  • magnesium hydroxide magnesium hydroxide
  • Silicone MB Silicone MB1 Contains 50% by weight silicone gum and 50% by weight low density polyethylene (LLDPE) (manufactured by Shin-Etsu Chemical Co., Ltd.)
  • Silicone MB2 Contains 50% by weight silicone gum and 50% by weight propylene resin (PP) (manufactured by Shin-Etsu Chemical Co., Ltd.)
  • Calcium carbonate particles 1 Average particle size 1.7 ⁇ m, paraffin surface treatment (manufactured by Nitto Flour Chemical Co., Ltd.)
  • Calcium carbonate particles 2 Average particle size 1.7 ⁇ m, stearic acid surface treatment (manufactured by Nitto Flourishing Co., Ltd.)
  • Clay particles average particle size 1.5 ⁇ m (manufactured by Takehara Chemical Industries)
  • Talc particles average particle size 2.5 ⁇ m (made by Nippon Talc Co., Ltd.)
  • the insulated electric wire as a cable was produced as follows according to the kind of the following electric wire.
  • Electric wire 1 ... Thick wall 0.5 sq (mm 2 )
  • Electric wire 2 ... Ultra thin 0.5sq
  • Electric wire 3 ... Ultra thin 1.5sq
  • Electric wire 4 ... Thick wall 100sq
  • the kind of the said electric wire is based on JASO D611. “0.5”, “100”, and “1.5” indicate the cross-sectional area of the conductor, and “thick” and “ultra-thin” indicate the thickness of the insulating layer. However, the thickness of the insulating layer may differ depending on the conductor cross-sectional area even if the same “thick” notation is used.
  • the electric wires 1 to 4 are as follows. Electric wire 1 ... conductor cross-sectional area 0.5 mm 2 , insulation layer thickness 0.50 mm Electric wire 2 ... conductor cross-sectional area 0.5 mm 2 , insulation layer thickness 0.20 mm Electric wire 3: conductor cross-sectional area 1.5 mm 2 , insulation layer thickness 0.20 mm Electric wire 4 ... conductor cross-sectional area 100 mm 2 , insulation layer thickness 2.00 mm (Wires 1 to 3)
  • the inner layer forming resin composition prepared as described above was extruded by a single-screw extruder (Mers Seiki Co., Ltd., cylinder outer diameter 25 mm), discharged from the crosshead, and exposed on the conductor.
  • the inner layer was formed by coating so as to have the thicknesses shown in 1 to 16, and the obtained inner layer covered electric wire was wound around a bobbin, and then the wound inner layer covered electric wire was sent out.
  • the outermost layer-forming resin composition prepared as described above was extruded by a single-screw extruder (manufactured by Mars Seiki Co., Ltd., cylinder outer diameter 25 mm), discharged from the crosshead, and fed on the inner-layer coated electric wire
  • the outermost layer was formed by coating so as to have the thicknesses shown in Tables 1-16.
  • an insulated wire as a cable was produced.
  • the electric wire 4 produced the insulated electric wire similarly to the above except having used the single screw extruder (made by Mars Seiki Co., Ltd.) whose cylinder outer diameter is 60 mm as a single screw extruder.
  • the wire design of the insulated wire produced as described above that is, the outer diameter of the conductor, the outer diameter of the wire, the thickness of the inner layer, the thickness of the outermost layer, and the cross-sectional area ratio of the outermost layer in the insulating layer As shown in 1-16.
  • the specific gravity of the insulating layer of the insulated wire produced as described above was measured as follows. That is, the insulating layer is peeled off from the insulated wire, the insulating layer is melt-kneaded to produce a uniform sheet having a thickness of 2 mm, and the insulating layer is measured with an electronic hydrometer (manufactured by Alpha Mirage) based on the Archimedes method. The specific gravity of was measured. The results are shown in Tables 1-16.
  • the insulating layer stripped from the insulated wire is separated into an inner layer and an outermost layer, and the specific gravity of each of the inner layer resin composition constituting the inner layer and the outermost layer resin composition constituting the outermost layer is measured in the same manner as the insulating layer. did.
  • the results are shown in Tables 1-16.
  • Abrasion resistance was determined by performing a scrape wear test on the insulated wires of Examples 1 to 109 and Comparative Examples 1 to 42 according to the test method described in JASO D618, and measuring the number of times of scrape wear until conduction. As the index. And about the insulated wire, it ranked as follows according to the kind, and evaluated. The results are shown in Tables 1-16.
  • the acceptance criteria for wear resistance were as follows.
  • x, ⁇ , ⁇ and ⁇ are as follows.
  • X means that the number of scrape wear is less than the JASO standard value.
  • ⁇ means that the number of scrape wear is equal to or greater than the JASO standard value, but there is a margin.
  • the conductor is eccentric to some extent due to manufacturing variations. Further, since the discharge amount at the time of extrusion also varies, the thickness of the insulating layer also varies to some extent when viewed as a long length. For this reason, a thick part and a thin part inevitably occur in the insulating layer of the cable.
  • “O” means that the cable can be used in a normal environment (an environment in which wear is relatively difficult at a normal vibration level) where the number of scrape wear is equal to or higher than the JASO standard value and the tolerance is high.
  • ⁇ means that the scrape wear frequency is more than the JASO standard value and has a higher tolerance, and the cable can be used even in harsh environments (for example, in the vicinity of automobile engines where vibrations are high and there is a high risk of wear). .
  • the evaluation rank is ⁇ , the cable can be used even around the engine, which is difficult to be used with ⁇ , ⁇ , and ⁇ , and is easily rubbed and worn by intense vibration.
  • X means that when connecting the conductor of the cable that has been led out and the connection terminal, the beard is likely to enter between the conductor and the connection terminal to cause contact failure.
  • ⁇ is suitable for the outer diameter of the insulating layer and the outer diameter of the conductor, although it is unlikely that whisker will enter between the conductor and the connecting terminal when connecting the conductor of the leaded cable and the connecting terminal. This means that it is necessary to perform the lead processing in consideration of the variation (conductor eccentricity) at the time of normal manufacturing while using a dedicated lead processing blade.
  • ⁇ is suitable for the outer diameter of the insulating layer and the outer diameter of the conductor, although when connecting the conductor of the cable and the connection terminal, the possibility that a whisker will enter between the conductor and the connection terminal and contact failure is low
  • ⁇ indicates that when connecting the conductor of the leaded cable and the connection terminal, it is unlikely that whiskers will enter between the conductor and the connection terminal, resulting in poor contact.
  • It can also be used for cables with different outer diameters of conductors, and it means that the lead processing can be performed without taking into account variations during manufacture (conductor eccentricity). In this case, the frequency of replacing the blade for each cable in which the outer diameter of the insulating layer and the outer diameter of the conductor are somewhat different is reduced, and the management of the blade is facilitated.
  • the cable of the present invention has excellent wear resistance and internal peel resistance while maintaining good flame retardancy.
  • the cable of the present invention has excellent wear resistance and internal peeling resistance while maintaining good flame retardancy, so that it is an insulated wire for automobiles, industrial wires, automotive cables, industrial cables, communication cables, It can be applied to various uses such as coaxial cables and electronic wires.
  • the cable of the present invention can also be applied to an optical fiber cable in which the transmission medium is replaced with an optical fiber from a conductor.

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  • Insulated Conductors (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Organic Insulating Materials (AREA)

Abstract

L'invention concerne un câble comprenant : un support de transmission qui est composé d'un conducteur ou d'une fibre optique ; et une couche isolante qui recouvre le support de transmission. La couche isolante comprend une couche la plus à l'extérieur et une couche interne qui est disposée à l'intérieur de la couche la plus à l'extérieur. La couche la plus à l'extérieur contient une résine de base et un ignifugeant ; et l'ignifugeant contient des particules inorganiques, qui sont composées d'au moins un type de particules choisies dans le groupe constitué de particules de carbonate de calcium et de particules de composé de silicate, d'un composé de silicone et d'un composé contenant un acide gras. La teneur en particules inorganiques dans la couche isolante est de 0,03 à 7,00 % en masse ; la teneur en composé de silicone dans la couche isolante est de 0,01 à 4,30 % en masse ; la teneur du composé contenant un acide gras dans la couche isolante est de 0,02 à 7,50 % en masse ; et le rapport de mélange du composé contenant un acide gras à 100 parties en masse de la résine de base dans la couche interne est inférieur au rapport de mélange du composé contenant un acide gras à 100 parties en masse de la résine de base dans la couche la plus à l'extérieur.
PCT/JP2019/009823 2018-03-13 2019-03-11 Câble et faisceau de câblage WO2019176885A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004335263A (ja) * 2003-05-07 2004-11-25 Hitachi Cable Ltd ノンハロゲン難燃絶縁電線
JP2009176475A (ja) * 2008-01-22 2009-08-06 Autonetworks Technologies Ltd 絶縁電線
JP2013149543A (ja) * 2012-01-23 2013-08-01 Yazaki Corp 表面架橋電線
JP2014125575A (ja) * 2012-12-27 2014-07-07 Fujikura Ltd 難燃性樹脂組成物、及び、これを用いたケーブル

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004335263A (ja) * 2003-05-07 2004-11-25 Hitachi Cable Ltd ノンハロゲン難燃絶縁電線
JP2009176475A (ja) * 2008-01-22 2009-08-06 Autonetworks Technologies Ltd 絶縁電線
JP2013149543A (ja) * 2012-01-23 2013-08-01 Yazaki Corp 表面架橋電線
JP2014125575A (ja) * 2012-12-27 2014-07-07 Fujikura Ltd 難燃性樹脂組成物、及び、これを用いたケーブル

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