JPS62230866A - Ultraviolet-curing coating compound and optical fiber using same - Google Patents
Ultraviolet-curing coating compound and optical fiber using sameInfo
- Publication number
- JPS62230866A JPS62230866A JP61072756A JP7275686A JPS62230866A JP S62230866 A JPS62230866 A JP S62230866A JP 61072756 A JP61072756 A JP 61072756A JP 7275686 A JP7275686 A JP 7275686A JP S62230866 A JPS62230866 A JP S62230866A
- Authority
- JP
- Japan
- Prior art keywords
- ultraviolet
- optical fiber
- curing
- coating compound
- quartz glass
- Prior art date
- 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.)
- Granted
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 24
- 238000000576 coating method Methods 0.000 title abstract description 16
- 239000011248 coating agent Substances 0.000 title abstract description 15
- 150000001875 compounds Chemical class 0.000 title abstract 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 10
- 239000011737 fluorine Substances 0.000 claims abstract description 10
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000004132 cross linking Methods 0.000 claims abstract description 7
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 6
- 239000003973 paint Substances 0.000 claims description 20
- 238000005253 cladding Methods 0.000 claims description 14
- 150000001252 acrylic acid derivatives Chemical class 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M acrylate group Chemical group C(C=C)(=O)[O-] NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims 1
- 229920000642 polymer Polymers 0.000 abstract description 8
- -1 fluorine modified acrylate Chemical class 0.000 abstract description 4
- 238000001723 curing Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 150000002221 fluorine Chemical class 0.000 description 6
- 239000002655 kraft paper Substances 0.000 description 5
- 239000000178 monomer Substances 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- LEJBBGNFPAFPKQ-UHFFFAOYSA-N 2-(2-prop-2-enoyloxyethoxy)ethyl prop-2-enoate Chemical compound C=CC(=O)OCCOCCOC(=O)C=C LEJBBGNFPAFPKQ-UHFFFAOYSA-N 0.000 description 2
- 244000028419 Styrax benzoin Species 0.000 description 2
- 235000000126 Styrax benzoin Nutrition 0.000 description 2
- 235000008411 Sumatra benzointree Nutrition 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 235000019382 gum benzoic Nutrition 0.000 description 2
- 238000013007 heat curing Methods 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 2
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 1
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- GWZMWHWAWHPNHN-UHFFFAOYSA-N 2-hydroxypropyl prop-2-enoate Chemical compound CC(O)COC(=O)C=C GWZMWHWAWHPNHN-UHFFFAOYSA-N 0.000 description 1
- JHWGFJBTMHEZME-UHFFFAOYSA-N 4-prop-2-enoyloxybutyl prop-2-enoate Chemical compound C=CC(=O)OCCCCOC(=O)C=C JHWGFJBTMHEZME-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 description 1
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 description 1
- MPIAGWXWVAHQBB-UHFFFAOYSA-N [3-prop-2-enoyloxy-2-[[3-prop-2-enoyloxy-2,2-bis(prop-2-enoyloxymethyl)propoxy]methyl]-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(COC(=O)C=C)(COC(=O)C=C)COCC(COC(=O)C=C)(COC(=O)C=C)COC(=O)C=C MPIAGWXWVAHQBB-UHFFFAOYSA-N 0.000 description 1
- 150000008062 acetophenones Chemical class 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229960002130 benzoin Drugs 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 150000008366 benzophenones Chemical class 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- ISAOCJYIOMOJEB-UHFFFAOYSA-N desyl alcohol Natural products C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 1
- 125000004386 diacrylate group Chemical group 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- YDKNBNOOCSNPNS-UHFFFAOYSA-N methyl 1,3-benzoxazole-2-carboxylate Chemical compound C1=CC=C2OC(C(=O)OC)=NC2=C1 YDKNBNOOCSNPNS-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229940068918 polyethylene glycol 400 Drugs 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Abstract
Description
【発明の詳細な説明】
崖Ｕ主匣
本発明は、石英ガラスコア光ファイバのクラッド層形成
用として好適な紫外線硬化性塗料、並びに該紫外線硬化
性塗料を用いてクラフト層を形成してなるポリマークラ
ッド−石英ガラスコア型の光ファイバに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ultraviolet curable coating material suitable for forming a cladding layer of a silica glass core optical fiber, and a polymer obtained by forming a kraft layer using the ultraviolet curable coating material. The present invention relates to a clad-silica glass core type optical fiber.
鴛】ヱリえ青
石英ガラスコアの上への石英ガラスクラブト層の形成は
、ＣＶＤ法、ＶＡＤ法、あるいはロッドインチェープ法
などにより行うことができるが、いずれの方法を採用す
るにしても大規模な生産設備を必要とする。これに対し
て、ポリマークラッド−石英ガラスコア型の光ファイバ
は、全体が石英ガラスからなる光ファイバと同等の低損
失性を存し、しかも石英ガラスコア上へのクラッド層の
形成は基本的にはポリマーの成形加工に類することであ
るので、石英ガラスクランド層の形成と比較して簡単な
設備を用いて容易に行うことができるものと期待され実
用化研究が鋭意進められている。従来、ポリマークラッ
ド層の形成方法とじては、押出成形法、熱硬化性樹脂塗
料の塗布・焼付法、紫外線硬化性塗料の塗布硬化法など
が知られている。これら周知方法のうち、紫外線硬化性
塗料の塗布硬化法は、塗料の塗布並びに紫外線照射によ
る硬化作業の全てを室温で行うことができ、しかも紫外
線照射装置も差はど高価なものではないので、特に斯界
の注目を浴びつつある方法である。A quartz glass crab layer can be formed on the blue quartz glass core by a CVD method, a VAD method, or a rod-in-chape method, but whichever method is used, also requires large-scale production equipment. On the other hand, polymer clad-silica glass core optical fibers have low loss properties equivalent to optical fibers made entirely of silica glass, and moreover, the formation of a cladding layer on the silica glass core is basically Since this process is similar to the molding process of polymers, it is expected that it can be easily performed using simple equipment compared to the formation of a silica glass crund layer, and research into practical application is being actively carried out. Conventionally, known methods for forming a polymer clad layer include an extrusion molding method, a method of applying and baking a thermosetting resin paint, and a method of applying and curing an ultraviolet curable paint. Among these well-known methods, the coating and curing method for ultraviolet curable paints allows the coating and curing work by ultraviolet ray irradiation to be performed at room temperature, and the ultraviolet ray irradiation equipment is not very expensive. This method is particularly attracting attention in this field.
°を すべき−占
ところで、現在各種の紫外線硬化性塗料が知られている
が、いずれも屈折率が石英ガラスのそれ（ｎ６−１．４
５８）より大きくクラッド用被覆材として適しない、ま
た、Ｕ Ｓ Ｐ４，５１１，２０９などで例示されてい
る紫外線硬化性塗料は、常温での粘度が低いために線引
きされた直後の石英ガラスコアの表面に塗布すると、部
分的な流下現象を起こして薄く且つ均一なりラッド層を
形成し難い問題がある。また、クラッド用として現在使
用されているシリコーン樹脂は、硬化皮膜の硬度が乏し
いために外力により損傷を被り易い欠点もある。By the way, various types of ultraviolet curable paints are currently known, but all of them have a refractive index that is that of quartz glass (n6-1.4
58) Ultraviolet curable paints, which are larger in size and are not suitable as coating materials for cladding, and are exemplified in U.S.P. 4,511,209, have low viscosity at room temperature, so they cannot be used as coating materials for silica glass cores immediately after being drawn. When applied to the surface, there is a problem in that a partial flow-down phenomenon occurs, making it difficult to form a thin and uniform rad layer. Furthermore, silicone resins currently used for cladding have the disadvantage that the hardness of the cured film is poor, so that they are easily damaged by external forces.
クラッド層を厚く仕上げることにより上記の問題は多少
改善されるとしても、本質的な改善策とはなり得す、逆
に厚肉のクラッド層は光ファイバの仕上がり外径を増大
させることとなってコアの占積率が低下し、スペースフ
ァクター的に極めて不利である。Although making the cladding layer thicker may somewhat improve the above problem, it is not a fundamental solution; on the contrary, a thicker cladding layer increases the finished outer diameter of the optical fiber. The space factor of the core decreases, which is extremely disadvantageous in terms of space factor.
朋１】すＣ１１反
本発明は、上記の従来事情を考慮して、２５℃における
粘度が３００〜１０．０００ｃ、ｐ．、紫外線照射架橋
後におけるショアＡ硬度が少なくとも８０．かつフッ素
含有量が２０〜６０重量％のフッ素変成アクリレート系
樹脂を主成分とする紫外線硬化性塗料、並びに該塗料を
塗布し紫外線硬化して形成した厚さ２〜３０μ鶴のクラ
ッド層を有する石英ガラスコアの光ファイバを提供しよ
うとするものである。1] C11 In consideration of the above-mentioned conventional circumstances, the present invention has a viscosity of 300 to 10.000c at 25°C, p. , Shore A hardness after crosslinking by ultraviolet irradiation is at least 80. A UV-curable paint whose main component is a fluorine-modified acrylate resin with a fluorine content of 20 to 60% by weight, and quartz having a cladding layer with a thickness of 2 to 30 μm formed by applying the paint and curing it with UV light. The aim is to provide a glass core optical fiber.
詐１じ九展
本発明の塗料は、アクリレート系樹脂を主成分とするも
のであるが、２０〜６０重量％のフッ素量にて変成した
ものであるために石英ガラスコアより低屈折率を有し、
したがってクラフト層構成材料として適するのみならず
、石英ガラスコアに対する良好な親和性と２５℃におい
て３００〜１０．０００ｃ、ｐ、との適度の粘度とをを
するために線引きされた直後の石英ガラスコアの表面に
薄くシかも均一に塗布することが可能となり、このあと
紫外線照射して均一薄層のクラッド層を形成することが
できる。また、本発明のクラッド層は紫外線照射架橋後
におけるショアＡ硬度が少なくとも８０もの高硬度を有
するので、２〜３０μｍ程度の薄層であっても外力に対
して優れた耐性を示す、また、上記の紫外線硬化性塗料
の硬化物にて構成され且つ厚さ２〜３０μｍのクラフト
層を有する本発明の石英ガラスコアー光ファイバは、低
伝送損失であり、仕上がり外径（スペースファクター）
が小さい長所をも具備する。The paint of the present invention has an acrylate resin as its main component, but since it has been modified with a fluorine content of 20 to 60% by weight, it has a refractive index lower than that of a silica glass core. death,
Therefore, the quartz glass core immediately after being drawn is not only suitable as a material for forming the kraft layer, but also has a good affinity for the quartz glass core and a moderate viscosity of 300 to 10,000 c,p at 25°C. It is possible to apply the coating thinly and uniformly to the surface of the substrate, and then irradiate it with ultraviolet rays to form a uniformly thin cladding layer. Furthermore, since the cladding layer of the present invention has a high Shore A hardness of at least 80 after crosslinking by ultraviolet irradiation, it exhibits excellent resistance to external forces even if it is a thin layer of about 2 to 30 μm. The silica glass core optical fiber of the present invention, which is composed of a cured product of an ultraviolet curable paint and has a kraft layer with a thickness of 2 to 30 μm, has a low transmission loss and a small finished outer diameter (space factor).
It also has some small advantages.
本発明においては、変成フッ素量が２０〜６０重量％以
外であり、かつ、２５℃における粘度が３００〜１０，
０ＯＯｃ、ｐ、以外である塗料を用いたのでは、線引き
された直後の石英ガラスコアの表面に薄くしかも均一に
塗布することが困難である。したがって、本発明におい
ては、変成フッ素量が ２５〜５５重量％、特に３０〜
５０重量％であり、また２５℃における粘度が３００〜
ｓ、ｏｏｏｃ、ｐ、特に３５０〜４．０００Ｃ９ｐ、の
ものが好ましい、一方、用いた塗料が紫外線照射架橋後
におけるショアＡ硬度が、８０未満の低硬度であると、
外力に対する耐性が乏しいために光ファイバの敷設時に
被る外力により大きな損傷を受け、これがために光ファ
イバの伝送損失が増大する危険性が高くなる。したがっ
て本発明の塗料は、紫外線照射架橋後におけるショアＡ
硬度が少なくとも８５、特に少なくとも９ｏのものが好
ましい。In the present invention, the amount of modified fluorine is other than 20 to 60% by weight, and the viscosity at 25°C is 300 to 10%,
If a paint other than 0OOc,p is used, it is difficult to apply the paint thinly and uniformly to the surface of the quartz glass core immediately after it has been drawn. Therefore, in the present invention, the amount of modified fluorine is 25 to 55% by weight, particularly 30 to 55% by weight.
50% by weight, and the viscosity at 25°C is 300~
s, oooc, p, especially 350 to 4.000C9p, are preferred; on the other hand, when the paint used has a low Shore A hardness of less than 80 after crosslinking by ultraviolet irradiation,
Due to the poor resistance to external forces, the optical fibers are subject to significant damage due to the external forces encountered during installation, which increases the risk of increased transmission losses in the optical fibers. Therefore, the coating material of the present invention has Shore A after crosslinking by ultraviolet irradiation.
Those with a hardness of at least 85, especially at least 9o are preferred.
本発明において用いる紫外線硬化性塗料は、必要に応じ
て各種の光重合開始剤、たとえばアセトフェノン類、ベ
ンゾフェノン類、ミヒラーケトン類、ベンジル類、ベン
ゾイン類、ベンゾインエーテル類、ベンジルジメチルケ
タール類、チオキサントン類など、との混合物、光重合
性モノマー類、たとえば、メチルメタクリレート、エチ
ルメタクリレート、２−エチルへキシルアクリレート、
２−ヒドロキシエチルアクリレート、２−ヒドロキシプ
ロピルアクリレートなどの単官能性モノマー類およびそ
れらのフッ素変成体類、１． ３−ブタンジオールジア
クリレート、１．４−ブタンジオールジアクリレート、
１．６−ヘキサンジオールジアクリレート、ジエチレン
グリコールジアクリレート、ネオペンチルグリコールジ
アクリレート、ポリエチレングリコール４００ジアクリ
レート、ヒドロキシピパリン酸エステルネオペンチルグ
リコールジアクリレートなどの二官能性モノマー類およ
びそれらのフッ素変成体類、トリメチロールプロパント
リアクリレート、ペンタエリスリトールトリアクリレー
ト、ジペンタエリスリトールへキサアクリレート、ポリ
メチロールプロパンポリアクリレートなどの三官能性乃
至多官能性モノマー類およびそれらのフッ素変成体類な
どを通常量含んでいてもよい、またさらに必要に応じて
増感剤、光安定剤、可塑剤などを適当量混合しても良い
。市販品としては、たとえば大日本インキ社製の商品名
ＮＰ６０１〜６０４などを例示することができる。The ultraviolet curable paint used in the present invention may optionally contain various photopolymerization initiators, such as acetophenones, benzophenones, Michler ketones, benzyls, benzoins, benzoin ethers, benzyl dimethyl ketals, thioxanthones, etc. mixtures with photopolymerizable monomers such as methyl methacrylate, ethyl methacrylate, 2-ethylhexyl acrylate,
Monofunctional monomers such as 2-hydroxyethyl acrylate and 2-hydroxypropyl acrylate and their fluorine modified products; 1. 3-butanediol diacrylate, 1,4-butanediol diacrylate,
1. Difunctional monomers such as 6-hexanediol diacrylate, diethylene glycol diacrylate, neopentyl glycol diacrylate, polyethylene glycol 400 diacrylate, hydroxypiparic acid ester neopentyl glycol diacrylate, and their fluorine modified products, It may contain normal amounts of trifunctional to polyfunctional monomers such as trimethylolpropane triacrylate, pentaerythritol triacrylate, dipentaerythritol hexaacrylate, polymethylolpropane polyacrylate, and their fluorine modified products. Furthermore, appropriate amounts of sensitizers, photostabilizers, plasticizers, etc. may be mixed as necessary. Examples of commercially available products include NP601-604 manufactured by Dainippon Ink Co., Ltd.
付図は、本発明のポリマークランド−石英ガラスコア型
の光ファイバの断面図であって、１は石英ガラス、たと
えば純石英ガラス、ゲルマニウムやリンなどによりドー
プされた石英ガラスなどからなる石英ガラスコアであり
、２は本発明の紫外線硬化性材料を塗布し紫外線硬化し
て形成したクランド層である。クラフト層の厚さは、前
記した通り、２〜３０μｍであって２μ鴎より薄いと、
たとえ本発明の塗料が硬化後において高硬度を有すると
いえども外力により損傷し光ファイバの伝送損失が増大
する危険性があり、一方３０μｍより大きいと、光ファ
イバのスペースファクターが過大となる問題がある。し
たがって、クラフト層の厚さは、２〜３０μ個、特に５
〜２０μ涌とすることが好ましい。The attached figure is a cross-sectional view of a polymer crimp-quartz glass core type optical fiber of the present invention, in which 1 is a quartz glass core made of quartz glass, for example, pure silica glass, quartz glass doped with germanium, phosphorus, or the like. 2 is a ground layer formed by applying the ultraviolet curable material of the present invention and curing it with ultraviolet rays. As mentioned above, the thickness of the kraft layer is 2 to 30 μm and thinner than 2 μm,
Even if the coating of the present invention has high hardness after curing, there is a risk that it will be damaged by external force and increase the transmission loss of the optical fiber.On the other hand, if it is larger than 30 μm, there is a problem that the space factor of the optical fiber will be excessive. be. Therefore, the thickness of the kraft layer should be 2 to 30μ, especially 5
It is preferable to set it as 20 microliters.
本発明の光ファイバは、コア構成用の母材を通常の方法
にて線引きし、線引きされたコアファイバ上に線引き後
直ちに紫外線硬化性材料を塗布しついで紫外線硬化する
ことにより容易に製造することが可能である。The optical fiber of the present invention can be easily manufactured by drawing a base material for the core structure in a conventional manner, applying an ultraviolet curable material onto the drawn core fiber immediately after drawing, and then curing it with ultraviolet rays. is possible.
天皇■
以下、実施例及び比較例により本発明を一層詳細に説明
する。Emperor ■ The present invention will be explained in more detail below with reference to Examples and Comparative Examples.
実施例１
変成フッ素含存量が４５重量％、２５℃における粘度が
３５０Ｃ，ｐ、 、紫外線照射硬化後におけるショアＡ
硬度が９０．屈折率が１．４０の紫外線硬化性塗料。Example 1 Modified fluorine content is 45% by weight, viscosity at 25°C is 350C, p, Shore A after curing by UV irradiation
Hardness is 90. UV-curable paint with a refractive index of 1.40.
実施例２
変成フッ素含有量が４０重量％、２５℃における粘度が
４７０Ｃ，ｐ、 、紫外線照射硬化後におけるショアＡ
硬度が９０、屈折率が１．４１の紫外線硬化性塗料。Example 2 Modified fluorine content is 40% by weight, viscosity at 25°C is 470C, p, Shore A after curing by UV irradiation
An ultraviolet curable paint with a hardness of 90 and a refractive index of 1.41.
実施例３
変成フッ素含有量が４０重量％、２５℃における粘度が
３．０ＯＯｃ、ｐ、 、紫外線照射硬化後におけるショ
アＡ硬度が９０、屈折率が１．４３の紫外線硬化性塗料
。Example 3 An ultraviolet curable paint having a modified fluorine content of 40% by weight, a viscosity at 25°C of 3.0OOc,p, a Shore A hardness of 90 after curing with ultraviolet rays, and a refractive index of 1.43.
比較例１
変成フッ素含有量が４０重量％、２５℃における粘度が
５０ｃ、ｐ．、紫外線照射硬化後におけるショアＡ硬度
が９０、屈折率が１．４１の紫外線硬化性塗料。Comparative Example 1 Modified fluorine content was 40% by weight, viscosity at 25°C was 50c, p. , an ultraviolet curable paint having a Shore A hardness of 90 and a refractive index of 1.41 after curing by ultraviolet irradiation.
比較例２
２５℃における粘度がｓ、００．ＯＣ，［）、 、加熱
硬化後におけるショアＡ硬度が２０、屈折率が１．４０
のポリマークランド用加熱硬化型シリコーン樹脂。Comparative Example 2 Viscosity at 25°C is s, 00. OC, [), Shore A hardness after heat curing is 20, refractive index is 1.40
Heat-curing silicone resin for polymer glands.
比較例３
２５℃における粘度が３，０ＯＯｃ、ｐ、 、紫外線照
射硬化後におけるショアＡ硬度が９０、屈折率が１．５
０の市販紫外線硬化性塗料。Comparative Example 3 Viscosity at 25°C is 3.0OOc, p, Shore A hardness after curing with ultraviolet rays is 90, refractive index is 1.5
0 commercially available UV curable paint.
実施例４〜６、比較例４〜６
線引き直後の外径が２００μｍであり、屈折率が１．４
５８の純石英ガラスからなるコアファイバのうえに実施
例１〜３および比較例１〜３の各硬化性塗料をそれぞれ
塗布、紫外線硬化または加熱硬化して実施例４〜６、比
較例４〜６の光ファイバを得た。各光フアイバクランド
層の平均厚みは、いずれも１０μｍであった。Examples 4 to 6, Comparative Examples 4 to 6 The outer diameter immediately after drawing is 200 μm, and the refractive index is 1.4
Each of the curable coatings of Examples 1 to 3 and Comparative Examples 1 to 3 was applied onto a core fiber made of pure silica glass of No. obtained optical fiber. The average thickness of each optical fiber land layer was 10 μm.
実施例、比較例の各光ファイバにつき、下記の方法にて
クラッド層のバラツキの大きさ、耐外力性並びに伝送損
失を測定した。その結果を下表に示す。For each of the optical fibers of Examples and Comparative Examples, the magnitude of variation in the cladding layer, external force resistance, and transmission loss were measured using the following methods. The results are shown in the table below.
クラッド層のバラツキの大きさ：切断した光ファイバの
断面を顕微鏡で観察し、クラッド層厚さの最大値と最小
値とを測定した。Size of variation in cladding layer: The cross section of the cut optical fiber was observed with a microscope, and the maximum and minimum values of the cladding layer thickness were measured.
耐外力性：光ファイバを内径３００μ讃のステンレス管
に挿入してエポキシ系樹脂で固定し、−２０℃〜８０℃
のヒートサイクル試験（１０サイクル）にかけた後の光
ファイバの突出確率を測定した。External force resistance: Insert the optical fiber into a stainless steel tube with an inner diameter of 300μ and fix it with epoxy resin.
The protrusion probability of the optical fiber after being subjected to a heat cycle test (10 cycles) was measured.
伝送損失：分光光度計を用い、カットバンク法にてλ＝
０．８０μ鋼での伝送損失を測定した。Transmission loss: Using a spectrophotometer and using the cut bank method, λ=
Transmission loss in 0.80μ steel was measured.
付図は、本発明のポリマークランド−石英ガラスコア型
の光ファイバの断面図であって、１は石英ガラスコアで
あり、２は本発明の紫外線硬化性材料を塗布し紫外線硬
化して形成したクラッド層である。The attached figure is a cross-sectional view of a polymer clad-quartz glass core type optical fiber of the present invention, in which 1 is a quartz glass core, and 2 is a cladding formed by applying the ultraviolet curable material of the present invention and curing it with ultraviolet rays. It is a layer.
Claims (1)
アＡ硬度が少なくとも８０、かつフッ素含有量が２０〜
６０重量％のフッ素変性アクリレート系樹脂を主成分と
することを特徴とする紫外線硬化性塗料。 ２、石英ガラスコアと、その上に２５℃における粘度が
３００〜１０，０００ｃ．ｐ．、紫外線照射架橋後にお
けるショアＡ硬度が少なくとも８０、かつフッ素含有量
が２０〜６０重量％のフッ素変性アクリレート系樹脂を
主成分とする紫外線硬化性塗料を塗布し紫外線硬化して
形成した厚さ２〜３０μｍのクラッド層を有することを
特徴とする光ファイバ。[Claims] 1. Viscosity at 25° C. is 300 to 10,000 c. p. , Shore A hardness after crosslinking by ultraviolet irradiation is at least 80, and fluorine content is from 20 to
An ultraviolet curable paint characterized by containing 60% by weight of a fluorine-modified acrylate resin as a main component. 2. A quartz glass core with a viscosity of 300 to 10,000 c. at 25°C. p. , which has a Shore A hardness of at least 80 after crosslinking by ultraviolet irradiation, and has a fluorine content of 20 to 60% by weight, and is formed by applying an ultraviolet curable paint whose main component is a fluorine-modified acrylate resin and curing it with ultraviolet rays. An optical fiber having a cladding layer of ~30 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61072756A JPH0762726B2 (en) | 1986-03-31 | 1986-03-31 | Optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61072756A JPH0762726B2 (en) | 1986-03-31 | 1986-03-31 | Optical fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62230866A true JPS62230866A (en) | 1987-10-09 |
| JPH0762726B2 JPH0762726B2 (en) | 1995-07-05 |
Family
ID=13498516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61072756A Expired - Lifetime JPH0762726B2 (en) | 1986-03-31 | 1986-03-31 | Optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0762726B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991007441A1 (en) * | 1989-11-21 | 1991-05-30 | Sumitomo Electric Industries, Ltd. | Photo-setting resin composition and plastic-clad optical fibers produced therefrom |
| EP0732604A1 (en) * | 1994-09-16 | 1996-09-18 | Toray Industries, Inc. | Wide band optical fiber, optical fiber core wire and optical fiber cord |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5830703A (en) * | 1981-08-17 | 1983-02-23 | Sumitomo Electric Ind Ltd | Fiber having silicone resin clad for optical communication |
| JPS58187414A (en) * | 1982-04-28 | 1983-11-01 | Showa Denko Kk | Photosetting composition |
| JPS59182256A (en) * | 1983-03-28 | 1984-10-17 | Nitto Electric Ind Co Ltd | Covering material for optical glass fiber |
| JPS59182257A (en) * | 1983-03-28 | 1984-10-17 | Nitto Electric Ind Co Ltd | Covering material for optical glass fiber |
| JPS6050835A (en) * | 1983-08-31 | 1985-03-20 | 松下電工株式会社 | Ac switch circuit |
| US4511209A (en) * | 1982-02-24 | 1985-04-16 | Ensign-Bickford Industries, Inc. | Composition having improved optical qualities |
| JPS62199643A (en) * | 1986-02-27 | 1987-09-03 | Dainippon Ink & Chem Inc | Low-refractive index resin composition and use thereof |
-
1986
- 1986-03-31 JP JP61072756A patent/JPH0762726B2/en not_active Expired - Lifetime
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5830703A (en) * | 1981-08-17 | 1983-02-23 | Sumitomo Electric Ind Ltd | Fiber having silicone resin clad for optical communication |
| US4511209A (en) * | 1982-02-24 | 1985-04-16 | Ensign-Bickford Industries, Inc. | Composition having improved optical qualities |
| JPS58187414A (en) * | 1982-04-28 | 1983-11-01 | Showa Denko Kk | Photosetting composition |
| JPS59182256A (en) * | 1983-03-28 | 1984-10-17 | Nitto Electric Ind Co Ltd | Covering material for optical glass fiber |
| JPS59182257A (en) * | 1983-03-28 | 1984-10-17 | Nitto Electric Ind Co Ltd | Covering material for optical glass fiber |
| JPS6050835A (en) * | 1983-08-31 | 1985-03-20 | 松下電工株式会社 | Ac switch circuit |
| JPS62199643A (en) * | 1986-02-27 | 1987-09-03 | Dainippon Ink & Chem Inc | Low-refractive index resin composition and use thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991007441A1 (en) * | 1989-11-21 | 1991-05-30 | Sumitomo Electric Industries, Ltd. | Photo-setting resin composition and plastic-clad optical fibers produced therefrom |
| US5187770A (en) * | 1989-11-21 | 1993-02-16 | Sumitomo Electric Industries, Ltd. | Photosetting resin composition and plastic clad optical fiber comprising the same |
| EP0732604A1 (en) * | 1994-09-16 | 1996-09-18 | Toray Industries, Inc. | Wide band optical fiber, optical fiber core wire and optical fiber cord |
| EP0732604A4 (en) * | 1994-09-16 | 1997-10-22 | Toray Industries | Wide band optical fiber, optical fiber core wire and optical fiber cord |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0762726B2 (en) | 1995-07-05 |
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