WO2023195295A1 - 光ファイバ被覆用の樹脂組成物、光ファイバの着色被覆材料、光ファイバ、及び光ファイバリボン - Google Patents

光ファイバ被覆用の樹脂組成物、光ファイバの着色被覆材料、光ファイバ、及び光ファイバリボン Download PDF

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WO2023195295A1
WO2023195295A1 PCT/JP2023/008667 JP2023008667W WO2023195295A1 WO 2023195295 A1 WO2023195295 A1 WO 2023195295A1 JP 2023008667 W JP2023008667 W JP 2023008667W WO 2023195295 A1 WO2023195295 A1 WO 2023195295A1
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Prior art keywords
meth
optical fiber
acrylate
resin layer
resin composition
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2023/008667
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English (en)
French (fr)
Japanese (ja)
Inventor
勝史 浜窪
矩章 岩口
未歩 池川
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Sumitomo Electric Industries Ltd
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Sumitomo Electric Industries Ltd
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Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to US18/853,464 priority Critical patent/US20250216596A1/en
Priority to CN202380028755.XA priority patent/CN118829617A/zh
Priority to JP2024514195A priority patent/JPWO2023195295A1/ja
Publication of WO2023195295A1 publication Critical patent/WO2023195295A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/104—Coating to obtain optical fibres
    • C03C25/1065—Multiple coatings
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/24—Coatings containing organic materials
    • C03C25/26—Macromolecular compounds or prepolymers
    • C03C25/28—Macromolecular compounds or prepolymers obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C03C25/285—Acrylic resins
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/465—Coatings containing composite materials
    • C03C25/475—Coatings containing composite materials containing colouring agents
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/48—Coating with two or more coatings having different compositions
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/46—Polymerisation initiated by wave energy or particle radiation
    • C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
    • C08F2/50—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
    • 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
    • C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02395—Glass optical fibre with a protective coating, e.g. two layer polymer coating deposited directly on a silica cladding surface during fibre manufacture
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
    • C08F222/10—Esters
    • C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
    • C08F222/106—Esters of polycondensation macromers
    • C08F222/1063—Esters of polycondensation macromers of alcohol terminated polyethers

Definitions

  • the present disclosure relates to a resin composition for coating an optical fiber, a colored coating material for an optical fiber, an optical fiber, and an optical fiber ribbon.
  • an optical fiber has a coating resin layer for protecting the glass fiber that is an optical transmission body.
  • the coating resin layer includes, for example, a primary resin layer and a secondary resin layer.
  • the outermost layer of the coating resin layer is composed of a colored resin layer for identifying the optical fiber (see, for example, Patent Documents 1 to 3).
  • a resin composition for coating an optical fiber contains a photopolymerizable compound and a photopolymerization initiator, and the photopolymerizable compound is a di(meth)acrylate having an oxypropylene group and an oxyethylene group. di(meth)acrylate having a group, and the mass ratio of the content of oxypropylene groups to the content of oxyethylene groups in the photopolymerizable compound is 0.01 or more and 2.00 or less.
  • FIG. 1 is a schematic cross-sectional view showing an example of an optical fiber according to this embodiment.
  • FIG. 2 is a schematic cross-sectional view showing an example of the optical fiber according to this embodiment.
  • FIG. 3 is a schematic cross-sectional view showing an example of the optical fiber ribbon according to this embodiment.
  • Optical fibers are sometimes used in the form of an optical fiber ribbon, in which a plurality of optical fibers are arranged and integrated using a ribbon resin.
  • optical fiber ribbons that use optical fibers with colored resin layers
  • a phenomenon known as "color peeling" occurs in which the colored resin layers peel off from the optical fibers.
  • color peeling occurs in which the colored resin layers peel off from the optical fibers.
  • the linear speed when forming the colored resin layer is increased, color peeling is likely to occur.
  • the coating resin layer may peel off from the glass fiber, increasing transmission loss.
  • the present disclosure aims to provide a resin composition, a colored coating material for an optical fiber, an optical fiber, and an optical fiber ribbon that can produce an optical fiber that is resistant to color peeling and has excellent wet heat resistance. .
  • a resin composition for coating an optical fiber according to one aspect of the present disclosure contains a photopolymerizable compound and a photopolymerization initiator, and the photopolymerizable compound is a di(meth)acrylate having an oxypropylene group. , di(meth)acrylate having an oxyethylene group, and the mass ratio of the content of the oxypropylene group to the content of the oxyethylene group in the photopolymerizable compound is 0.01 or more and 2.00 or less.
  • Such a resin composition uses a (meth)acrylate compound with a specific structure instead of the commonly used urethane (meth)acrylate as a photopolymerizable compound, so that color peeling does not easily occur and it is resistant to wet heat. Optical fibers with excellent durability can be produced.
  • the photopolymerizable compound may further contain epoxy di(meth)acrylate having a bisphenol skeleton.
  • the resin composition according to the present embodiment may further contain titanium oxide from the viewpoint of coloring the resin layer.
  • a colored coating material for an optical fiber according to one aspect of the present disclosure includes the resin composition according to any one of (1) to (3) above.
  • An optical fiber according to one aspect of the present disclosure includes a glass fiber including a core and a cladding, a primary resin layer that contacts the glass fiber and covers the glass fiber, and a secondary resin layer that covers the primary resin layer. a colored resin layer covering the secondary resin layer, the colored resin layer containing a cured product of the resin composition according to any one of (1) to (3) above.
  • An optical fiber according to one aspect of the present disclosure includes a glass fiber including a core and a cladding, a primary resin layer that contacts the glass fiber and covers the glass fiber, and a secondary resin layer that covers the primary resin layer.
  • the secondary resin layer contains a cured product of the resin composition according to any one of (1) to (3) above.
  • an optical fiber ribbon In an optical fiber ribbon according to one aspect of the present disclosure, a plurality of the optical fibers described in (5) or (6) above are arranged in parallel and coated with ribbon resin. Such an optical fiber ribbon does not cause color peeling when the optical fibers are taken out, and the optical fibers can be easily identified.
  • the resin composition for coating an optical fiber according to the present embodiment contains a photopolymerizable compound and a photopolymerization initiator, and the photopolymerizable compound contains di(meth)acrylate having an oxypropylene group and oxyethylene di(meth)acrylate having a group, and the mass ratio of the content of oxypropylene groups to the content of oxyethylene groups in the photopolymerizable compound is 0.01 or more and 2.00 or less.
  • Di(meth)acrylate having an oxypropylene group is also called propylene oxide-modified di(meth)acrylate.
  • the di(meth)acrylate having an oxypropylene group according to this embodiment is a photopolymerizable compound having no urethane bond.
  • di(meth)acrylates having an oxypropylene group examples include polypropylene glycol di(meth)acrylate, propylene oxide-modified bisphenol A di(meth)acrylate, and propylene oxide-modified neopentyl glycol di(meth)acrylate.
  • the number of oxypropylene groups (PO) may be 2 or more and 60 or less, 3 or more and 58 or less, or 4 or more and 54 or less.
  • Di(meth)acrylate having an oxyethylene group is also called ethylene oxide-modified di(meth)acrylate.
  • the di(meth)acrylate having an oxyethylene group according to this embodiment is a photopolymerizable compound having no urethane bond.
  • di(meth)acrylates having an oxyethylene group examples include polyethylene glycol di(meth)acrylate, isocyanuric acid ethylene oxide-modified di(meth)acrylate, ethylene oxide-modified bisphenol F di(meth)acrylate, and ethylene oxide-modified bisphenol.
  • a di(meth)acrylate is mentioned.
  • the number of oxyethylene groups (EO) may be 2 or more and 40 or less, 4 or more and 38 or less, 6 or more and 36 or less, or 8 or more and 34 or less.
  • the mass ratio (PO/EO) of the content of oxypropylene groups to the content of oxyethylene groups in the photopolymerizable compound is 0.01 or more, 0.02 or more, 0.01 or more, from the viewpoint of improving wet heat resistance. It may be 0.03 or more, or 0.04 or more. From the viewpoint of suppressing color peeling, PO/EO is 2.00 or less, and may be 1.80 or less, 1.30 or less, 1.20 or less, 1.10 or less, or less than 1.00. .
  • the content of di(meth)acrylate having an oxyethylene group may be 10% by mass or more, 15% by mass or more, or 20% by mass or more, and 50% by mass or less, based on the total amount of the photopolymerizable compound. It may be 48% by mass or less, or 45% by mass or less.
  • the photopolymerizable compound may further contain epoxy di(meth)acrylate having a bisphenol skeleton.
  • epoxy di(meth)acrylate a reaction product of a diglycidyl ether compound having a bisphenol skeleton and a compound having a (meth)acryloyl group such as (meth)acrylic acid can be used.
  • epoxy di(meth)acrylates examples include (meth)acrylic acid adducts of bisphenol A diglycidyl ether, (meth)acrylic acid adducts of bisphenol AF diglycidyl ether, and (meth)acrylic acid adducts of bisphenol F diglycidyl ether. Examples include adducts.
  • the content of epoxy di(meth)acrylate may be 30% by mass or more, 40% by mass or more, or 45% by mass or more based on the total amount of photopolymerizable compounds, It may be 70% by mass or less, 65% by mass or less, or 60% by mass or less.
  • the photopolymerizable compound according to this embodiment is a photopolymerizable compound other than di(meth)acrylate having an oxypropylene group, di(meth)acrylate having an oxyethylene group, and epoxy di(meth)acrylate having a bisphenol skeleton ( (hereinafter referred to as a "monomer").
  • a monofunctional monomer having one polymerizable group and a polyfunctional monomer having two or more polymerizable groups can be used.
  • a mixture of two or more monomers may be used.
  • monofunctional monomers include methyl (meth)acrylate, ethyl (meth)acrylate, propyl (meth)acrylate, n-butyl (meth)acrylate, s-butyl (meth)acrylate, tert-butyl (meth)acrylate, Isobutyl (meth)acrylate, n-pentyl (meth)acrylate, isopentyl (meth)acrylate, hexyl (meth)acrylate, heptyl (meth)acrylate, isoamyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, n-octyl (meth)acrylate, isooctyl (meth)acrylate, isodecyl (meth)acrylate, lauryl (meth)acrylate, 2-phenoxyethyl (meth)acrylate, 3-phenoxybenzyl acrylate, phenoxydiethylene glycol acryl
  • polyfunctional monomers examples include polytetraethylene glycol di(meth)acrylate, neopentyl hydroxypivalic acid di(meth)acrylate, 1,4-butanediol di(meth)acrylate, and 1,6-hexanediol di(meth)acrylate.
  • the photopolymerization initiator can be appropriately selected from known radical photopolymerization initiators.
  • the photopolymerization initiator include 1-hydroxycyclohexylphenylketone (Omnirad 184, manufactured by IGM Resins), 2,2-dimethoxy-2-phenylacetophenone, 1-(4-isopropylphenyl)-2-hydroxy-2 -Methylpropan-1-one, bis(2,6-dimethoxybenzoyl)-2,4,4-trimethylpentylphosphine oxide, 2-methyl-1-[4-(methylthio)phenyl]-2-morpholino-propane- 1-one (Omnirad 907, manufactured by IGM Resins), 2,4,6-trimethylbenzoyldiphenylphosphine oxide (Omnirad TPO, manufactured by IGM Resins), and bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide ( Omnirad 819, manufactured by IGM Resin
  • the content of the photopolymerization initiator is 1 part by mass or more and 10 parts by mass or less, 2 parts by mass or more and 8 parts by mass or less, or 3 parts by mass or more and 7 parts by mass or less, based on 100 parts by mass of the total amount of the photopolymerizable compound. There may be.
  • the resin composition may further contain a silane coupling agent, a leveling agent, an antifoaming agent, an antioxidant, a sensitizer, and the like.
  • the silane coupling agent is not particularly limited as long as it does not interfere with curing of the resin composition.
  • Examples of the silane coupling agent include tetramethylsilicate, tetraethylsilicate, mercaptopropyltrimethoxysilane, vinyltrichlorosilane, vinyltriethoxysilane, vinyltris( ⁇ -methoxy-ethoxy)silane, ⁇ -(3,4-epoxycyclohexyl) )-Ethyltrimethoxysilane, dimethoxydimethylsilane, diethoxydimethylsilane, 3-acryloxypropyltrimethoxysilane, ⁇ -glycidoxypropyltrimethoxysilane, ⁇ -glycidoxypropylmethyldiethoxysilane, ⁇ -methacryloxy Propyltrimethoxysilane, N-( ⁇ -aminoethyl)- ⁇ -aminopropyltrimeth
  • the resin composition according to this embodiment can further contain titanium oxide particles.
  • titanium oxide particles surface-treated titanium oxide particles may be used.
  • Surface-treated titanium oxide particles are titanium oxide particles that have been surface-treated with an inorganic substance, and have excellent dispersibility in a resin composition.
  • Examples of inorganic substances used for surface treatment include aluminum oxide, silicon dioxide, and zirconium dioxide.
  • the surface-treated titanium oxide particles have a surface-treated layer containing at least one member selected from the group consisting of aluminum oxide, silicon dioxide, and zirconium dioxide, dispersibility can be further improved.
  • the surface treatment layer may be formed on at least a portion of the surface of titanium oxide, or may be formed on the entire surface of titanium oxide.
  • the surface treatment layer is formed by surface treatment of titanium oxide.
  • the amount of the surface treatment layer in the surface-treated titanium oxide particles may be 1% by mass or more, 1.5% by mass or more, or 2% by mass or more from the viewpoint of improving dispersibility, and from the viewpoint of increasing hiding power. , 10% by mass or less, 9% by mass or less, or 8% by mass or less.
  • the amount of the surface treatment layer can be calculated by measuring the amount of titanium element and inorganic elements other than titanium contained in the surface treated titanium oxide particles using inductively coupled mass spectrometry (ICP-MS).
  • the average primary particle size of the surface-treated titanium oxide particles may be 300 nm or less, 295 nm or less, or 290 nm or less, from the viewpoint of improving the lateral pressure resistance of the coating resin layer.
  • the average primary particle size of the surface-treated titanium oxide particles may be 100 nm or more, 150 nm or more, or 200 nm or more, or 200 nm or more and 300 nm or less, from the viewpoint of increasing hiding power.
  • the average primary particle size can be measured, for example, by image analysis of electron micrographs, light scattering method, BET method, etc.
  • the content of the surface-treated titanium oxide particles is 0.6 mass % or more, 1 mass % or more, 2 mass % or more, or 3 mass % or more based on the total amount of the resin composition. It may be. From the viewpoint of increasing the curability of the resin composition, the content of the surface-treated titanium oxide particles is 20% by mass or less, 15% by mass or less, 10% by mass or less, or 8% by mass or less based on the total amount of the resin composition. There may be.
  • the resin film obtained by curing the resin composition according to the present embodiment with an integrated light amount of 900 mJ/cm 2 or more and 1100 mJ/cm 2 or less is 6% or more and 50% or less at 23°C, the resin has excellent toughness.
  • a layer can be formed.
  • the elongation at break of the resin film may be 6.5% or more, 7% or more, or 10% or more, and may be 45% or less, 40% or less, or 30% or less.
  • the Young's modulus of the resin film may be 400 MPa or more, 450 MPa or more, or 500 MPa or more at 23°C. From the viewpoint of forming a resin layer with excellent toughness, the Young's modulus of the resin film may be 1500 MPa or less, 1200 MPa or less, or 1000 MPa or less at 23°C.
  • the resin composition according to this embodiment can be suitably used as a colored coating material for optical fibers.
  • a colored coating material containing the resin composition according to this embodiment By forming the outermost layer of the coating resin layer using a colored coating material containing the resin composition according to this embodiment, the resistance to wet heat of the optical fiber can be improved.
  • FIG. 1 is a schematic cross-sectional view showing the configuration of an optical fiber according to one embodiment.
  • the optical fiber 1 of this embodiment includes a glass fiber 10 and a coating resin layer 20 that is in contact with the glass fiber 10 and covers the outer periphery of the glass fiber 10.
  • the glass fiber 10 is a light-guiding optical transmission body that transmits the light introduced into the optical fiber 1.
  • the glass fiber 10 is a member made of glass, and is configured using, for example, silica (SiO 2 ) glass as a base material (main component).
  • the glass fiber 10 includes a core 12 and a cladding 14 that covers the core 12. Glass fiber 10 transmits the light introduced into optical fiber 1.
  • the core 12 is provided, for example, in a region including the central axis of the glass fiber 10.
  • the core 12 is made of, for example, pure SiO 2 glass or SiO 2 glass containing GeO 2 and/or fluorine element.
  • the cladding 14 is provided in a region surrounding the core 12.
  • the cladding 14 has a refractive index lower than the refractive index of the core 12.
  • the cladding 14 is made of, for example, pure SiO 2 glass or SiO 2 glass doped with fluorine element.
  • the outer diameter of the glass fiber 10 is approximately 100 ⁇ m to 125 ⁇ m, and the diameter of the core 12 constituting the glass fiber 10 is approximately 7 ⁇ m to 15 ⁇ m.
  • the coating resin layer 20 is an ultraviolet curing resin layer that covers the cladding 14.
  • the coating resin layer 20 includes a primary resin layer 22 that covers the outer periphery of the glass fiber 10 and a secondary resin layer 24 that covers the outer periphery of the primary resin layer 22.
  • the primary resin layer 22 is in contact with the outer peripheral surface of the clad 14 and covers the entire clad 14.
  • the secondary resin layer 24 is in contact with the outer peripheral surface of the primary resin layer 22 and covers the entire primary resin layer 22.
  • the thickness of the primary resin layer 22 is, for example, 10 ⁇ m or more and 50 ⁇ m or less.
  • the thickness of the secondary resin layer 24 is, for example, 10 ⁇ m or more and 40 ⁇ m or less.
  • the resin composition according to this embodiment can be applied to the secondary resin layer 24.
  • the secondary resin layer 24 can be formed by curing the resin composition.
  • the secondary resin layer 24 can improve the single-fiber separability and resistance to moist heat of the optical fiber.
  • the primary resin layer 22 can be formed, for example, by curing a resin composition containing urethane (meth)acrylate, a monomer, a photopolymerization initiator, and a silane coupling agent. Conventionally known techniques can be used for the resin composition for the primary resin layer.
  • the coating resin layer 20 may further include a colored resin layer 26 that covers the outer periphery of the secondary resin layer 24.
  • FIG. 2 is a schematic cross-sectional view showing the configuration of an optical fiber according to one embodiment. As shown in FIG. 2, the optical fiber 1A of this embodiment includes a glass fiber 10 and a coating resin layer 20 that is in contact with the glass fiber 10 and covers the outer periphery of the glass fiber 10.
  • the coating resin layer 20 includes a primary resin layer 22, a secondary resin layer 24, and a colored resin layer 26.
  • the thickness of the colored resin layer 26 is, for example, 3 ⁇ m or more and 10 ⁇ m or less.
  • the resin composition according to this embodiment can be applied to the colored resin layer 26.
  • the colored resin layer 26 can be formed by curing the resin composition.
  • the colored resin layer 26 can improve the single-fiber separability and resistance to moist heat of the optical fiber.
  • the secondary resin layer 24 in the optical fiber 1A may be formed using a conventionally known resin composition, for example, by curing a resin composition containing urethane (meth)acrylate, a monomer, and a photopolymerization initiator. be able to.
  • optical fiber ribbon An optical fiber ribbon can be manufactured using the optical fiber according to this embodiment.
  • the optical fiber ribbon has a plurality of the optical fibers arranged in parallel and is coated with a ribbon resin.
  • FIG. 3 is a schematic cross-sectional view showing the optical fiber ribbon according to this embodiment.
  • the optical fiber ribbon 100 includes a plurality of optical fibers 1A and a connecting resin layer 40 in which the optical fibers 1A are coated with ribbon resin and connected. Although four optical fibers are shown as an example in FIG. 3, the number is not particularly limited.
  • a resin material generally known as a ribbon material can be used as the resin for the ribbon.
  • Ribbon resins are thermosetting resins such as silicone resins, epoxy resins, and urethane resins, or ultraviolet curing resins such as epoxy acrylates, urethane acrylates, and polyester acrylates, from the viewpoint of preventing damage to the optical fibers and making them easy to split. It may also contain resin.
  • the optical fiber ribbon according to the present embodiment does not cause color peeling when removing the connecting resin layer from the optical fiber ribbon to take out the optical fibers, and it is easy to remove the optical fibers. can be identified.
  • titanium oxide particles surface-treated titanium oxide particles having a surface treatment layer containing aluminum oxide (Al 2 O 3 ) were prepared.
  • the average primary particle size of the surface-treated titanium oxide particles was 200 to 300 nm, and the amount of Al 2 O 3 calculated by ICP-MS measurement was 2.5% by mass.
  • a resin film was punched into a JIS K 7127 type No. 5 dumbbell shape, and tested using a tensile tester at a tensile speed of 1 mm/min and a gauge line spacing of 25 mm under the conditions of 23 ⁇ 2°C and 50 ⁇ 10% RH. Tensile, stress-strain curves were obtained. Young's modulus was determined using the 2.5% secant line.
  • a urethane acrylate oligomer obtained by reacting polypropylene glycol with a molecular weight of 4000, isophorone diisocyanate, hydroxyethyl acrylate, and methanol was prepared. 75 parts by mass of this urethane acrylate oligomer, 12 parts by mass of nonylphenol EO modified acrylate, 6 parts by mass of N-vinylcaprolactam, 2 parts by mass of 1,6-hexanediol diacrylate, 1 part by mass of Omnirad TPO, and 3-
  • a resin composition P was prepared by mixing 1 part by mass of mercaptopropyltrimethoxysilane.
  • (Resin composition for secondary resin layer) Acrylic acid addition of 40 parts by mass of urethane acrylate oligomer which is a reaction product of polypropylene glycol having a molecular weight of 600, 2,4-tolylene diisocyanate and 2-hydroxyethyl acrylate, 35 parts by mass of isobornyl acrylate, and bisphenol A diglycidyl ether.
  • a resin composition S was prepared by mixing 24 parts by mass of epoxy acrylate, 1 part by mass of Omnirad TPO, and 1 part by mass of Omnirad 184.
  • Resin composition for ribbon 18 parts by mass of urethane acrylate which is a reaction product of bisphenol A/ethylene oxide addition diol, tolylene diisocyanate and hydroxyethyl acrylate, and 10 parts by mass of urethane acrylate which is a reaction product of polytetramethylene glycol, tolylene diisocyanate and hydroxyethyl acrylate.
  • a resin composition R was prepared by mixing 0.7 parts by mass of -[4-(methylthio)phenyl]-2-morpholino-propan-1-one (Omnirad 907) and 1.3 parts by mass of Omnirad TPO. .
  • a primary resin layer with a thickness of 17.5 ⁇ m is formed using resin composition P on the outer periphery of a glass fiber with a diameter of 125 ⁇ m consisting of a core and a cladding, and a secondary resin layer with a thickness of 15 ⁇ m is further formed on the outer periphery using resin composition S.
  • a resin layer was formed to produce an optical fiber.
  • a colored resin layer with a thickness of 5 ⁇ m was formed on the outer periphery of the secondary resin layer using the resin compositions of Test Examples 1 to 17 while rewinding the optical fiber using a coloring machine.
  • An optical fiber having a diameter of 200 ⁇ m (hereinafter referred to as "colored optical fiber") having a colored resin layer was produced.
  • the linear speed when forming each resin layer was 1500 m/min.
  • optical fiber ribbon Four colored optical fibers were prepared, coated with resin composition R for ribbons, and then cured by irradiation with ultraviolet rays to form a connecting resin layer to produce an optical fiber ribbon.

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PCT/JP2023/008667 2022-04-06 2023-03-07 光ファイバ被覆用の樹脂組成物、光ファイバの着色被覆材料、光ファイバ、及び光ファイバリボン Ceased WO2023195295A1 (ja)

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CN202380028755.XA CN118829617A (zh) 2022-04-06 2023-03-07 光纤包覆用的树脂组合物、光纤的着色包覆材料、光纤、及光纤带
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021199748A1 (https=) * 2020-03-30 2021-10-07
WO2026034198A1 (ja) * 2024-08-05 2026-02-12 住友電気工業株式会社 光ファイバ連結用の樹脂組成物および光ファイバリボン

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016098127A (ja) * 2014-11-19 2016-05-30 Jsr株式会社 光ファイバ素線の二次コート層用液状硬化性樹脂組成物
WO2021145103A1 (ja) * 2020-01-14 2021-07-22 住友電気工業株式会社 樹脂組成物、光ファイバ及び光ファイバの製造方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016098127A (ja) * 2014-11-19 2016-05-30 Jsr株式会社 光ファイバ素線の二次コート層用液状硬化性樹脂組成物
WO2021145103A1 (ja) * 2020-01-14 2021-07-22 住友電気工業株式会社 樹脂組成物、光ファイバ及び光ファイバの製造方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021199748A1 (https=) * 2020-03-30 2021-10-07
JP7470780B2 (ja) 2020-03-30 2024-04-18 富士フイルム株式会社 組成物、膜及び光センサ
WO2026034198A1 (ja) * 2024-08-05 2026-02-12 住友電気工業株式会社 光ファイバ連結用の樹脂組成物および光ファイバリボン

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