JPS63261204A - Clad for light transmitting fiber - Google Patents
Clad for light transmitting fiberInfo
- Publication number
- JPS63261204A JPS63261204A JP62095092A JP9509287A JPS63261204A JP S63261204 A JPS63261204 A JP S63261204A JP 62095092 A JP62095092 A JP 62095092A JP 9509287 A JP9509287 A JP 9509287A JP S63261204 A JPS63261204 A JP S63261204A
- Authority
- JP
- Japan
- Prior art keywords
- polymer
- ring structure
- fluorine
- cladding material
- clad
- 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
- 239000000835 fiber Substances 0.000 title claims description 22
- 229920000642 polymer Polymers 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000005304 optical glass Substances 0.000 claims abstract description 4
- 229920005548 perfluoropolymer Polymers 0.000 claims abstract description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract 3
- 238000005253 cladding Methods 0.000 claims description 26
- 230000005540 biological transmission Effects 0.000 claims description 19
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 18
- 229910052731 fluorine Inorganic materials 0.000 claims description 18
- 239000011737 fluorine Substances 0.000 claims description 18
- 230000003287 optical effect Effects 0.000 claims description 13
- 229920003023 plastic Polymers 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims 1
- 239000002904 solvent Substances 0.000 abstract description 9
- 238000000576 coating method Methods 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 3
- 239000011162 core material Substances 0.000 description 6
- 239000000178 monomer Substances 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 5
- 229920001577 copolymer Polymers 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLKWQAQYRNTVKF-UHFFFAOYSA-N 1,1,2,3,3,4,5-heptafluoro-5-(1,2,3,3,4,5,5-heptafluoropenta-1,4-dienoxy)penta-1,4-diene Chemical compound FC(F)=C(F)C(F)(F)C(F)=C(F)OC(F)=C(F)C(F)(F)C(F)=C(F)F XLKWQAQYRNTVKF-UHFFFAOYSA-N 0.000 description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- ZQBFAOFFOQMSGJ-UHFFFAOYSA-N hexafluorobenzene Chemical compound FC1=C(F)C(F)=C(F)C(F)=C1F ZQBFAOFFOQMSGJ-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- FYJQJMIEZVMYSD-UHFFFAOYSA-N perfluoro-2-butyltetrahydrofuran Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C1(F)OC(F)(F)C(F)(F)C1(F)F FYJQJMIEZVMYSD-UHFFFAOYSA-N 0.000 description 2
- -1 polysiloxane Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 2
- BOSAWIQFTJIYIS-UHFFFAOYSA-N 1,1,1-trichloro-2,2,2-trifluoroethane Chemical compound FC(F)(F)C(Cl)(Cl)Cl BOSAWIQFTJIYIS-UHFFFAOYSA-N 0.000 description 1
- RRZIJNVZMJUGTK-UHFFFAOYSA-N 1,1,2-trifluoro-2-(1,2,2-trifluoroethenoxy)ethene Chemical compound FC(F)=C(F)OC(F)=C(F)F RRZIJNVZMJUGTK-UHFFFAOYSA-N 0.000 description 1
- BLTXWCKMNMYXEA-UHFFFAOYSA-N 1,1,2-trifluoro-2-(trifluoromethoxy)ethene Chemical compound FC(F)=C(F)OC(F)(F)F BLTXWCKMNMYXEA-UHFFFAOYSA-N 0.000 description 1
- BZPCMSSQHRAJCC-UHFFFAOYSA-N 1,2,3,3,4,4,5,5,5-nonafluoro-1-(1,2,3,3,4,4,5,5,5-nonafluoropent-1-enoxy)pent-1-ene Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)=C(F)OC(F)=C(F)C(F)(F)C(F)(F)C(F)(F)F BZPCMSSQHRAJCC-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- VCUFZILGIRCDQQ-KRWDZBQOSA-N N-[[(5S)-2-oxo-3-(2-oxo-3H-1,3-benzoxazol-6-yl)-1,3-oxazolidin-5-yl]methyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C1O[C@H](CN1C1=CC2=C(NC(O2)=O)C=C1)CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F VCUFZILGIRCDQQ-KRWDZBQOSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 125000002843 carboxylic acid group Chemical group 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Landscapes
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、プラスチッククラッド光伝送ファイバー用の
クラッド材に関し、更に詳しくは、主鎖に環構造を有す
る特定の含フッ素ポリマーからなる新規クラッド材に関
するものである。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a cladding material for a plastic clad optical transmission fiber, and more specifically to a novel cladding material made of a specific fluorine-containing polymer having a ring structure in its main chain. It is related to.
［従来の技術及び問題点］
従来より、コアを石英ガラスまたは光学ガラスなどのシ
リカファイバーとし、クラッドをＦＥＰ（テトラフルオ
ロエチレン／ヘキサフルオロプロピレン共重合体） （
Ａｐｐｌｉｅｄ ０ｐｔｉｃｓ １４゜ｐｉ５６ （＋
９７５）に記載）やフッ化ビニル／ヘキサフルオロプロ
ピレン共重合体（Ａｐｐｌｉｅｄ ０ｐｔｉｃｓ １４
゜ｐｉ （１９７４）に記載）、あるいはフッ化ビニリ
デン／テトラフルオロエチレ共重合体（特開昭５１−５
２８４９１．さらには含フッ素ボリシロキサン（特開昭
５６−６２２０６．同５９−２０４００３．同５９−２
０４００４）等のフッ素系ポリマーとした系が提案され
ている。[Prior art and problems] Conventionally, the core is made of silica fiber such as quartz glass or optical glass, and the cladding is FEP (tetrafluoroethylene/hexafluoropropylene copolymer) (
Applied 0ptics 14゜pi56 (+
975) and vinyl fluoride/hexafluoropropylene copolymers (Applied Optics 14).
゜pi (1974)) or vinylidene fluoride/tetrafluoroethylene copolymer (JP-A-51-5
28491. Furthermore, fluorine-containing polysiloxane (JP-A No. 56-62206, No. 59-204003, No. 59-2)
A system using a fluorine-based polymer such as 04004) has been proposed.
［発明の解決しようとする問題点］
本発明者の研究によれば、前記のごときフッ素系ポリマ
ーのクラッド材は、例えばＦＥＰは透明性が不十分で伝
送損失が大きい、フッ化ビニリデン／テトラフルオロエ
チレン共重合体は屈折率が充分下がらず、開口数が不十
分である、含フッ素ポリシロキサンは強度が低い等々の
問題点を有している。従って、透明性が高く、低屈折率
で高強度のクラッド材の開発が望まれている。[Problems to be Solved by the Invention] According to research by the present inventors, the above-mentioned fluorine-based polymer cladding materials, such as FEP, have insufficient transparency and large transmission loss, and vinylidene fluoride/tetrafluorocarbon Ethylene copolymers have problems such as insufficient reduction in refractive index and insufficient numerical aperture, and fluorine-containing polysiloxanes have low strength. Therefore, it is desired to develop a cladding material with high transparency, low refractive index, and high strength.
［問題点を解決するだめの手段］
本発明は、前述の問題点を解決すべくなされたものであ
り、その目的とするところは、高い透明性、低い屈折率
である高強度のクラッド層を円滑有利に形成可能なプラ
スチッククラッド光伝送ファイバー用クラッド材を提供
することにある。[Means for Solving the Problems] The present invention has been made to solve the above-mentioned problems, and its purpose is to provide a high-strength cladding layer with high transparency and low refractive index. An object of the present invention is to provide a cladding material for a plastic clad optical transmission fiber that can be formed smoothly and advantageously.
すなわち本発明は、主鎖に環構造を有する含フッ素ポリ
マー、からなることを特徴とするプラスチッククラッド
光伝送ファイバー用クラッド材を新規に提供するもので
ある。That is, the present invention provides a novel cladding material for a plastic clad optical transmission fiber characterized by being made of a fluorine-containing polymer having a ring structure in its main chain.
本発明において、主鎖に環構造を有する含フッ素ポリマ
ーとしては、例えば一般式
％式％
の如き環構造を有するものが挙げられる。これらの内、
次の如き環構造を有するポリマーが代表的である。ただ
し、本発明の内容はこれらのみに限定されるものではな
い。In the present invention, examples of the fluorine-containing polymer having a ring structure in the main chain include those having a ring structure represented by the general formula %. Among these,
Polymers having the following ring structures are typical. However, the content of the present invention is not limited to these only.
ＣＦｚ
これら重合体の製造法を示すと、次の２通りである。た
だし、これら製造法に限定されるものではない。CFz There are two methods for producing these polymers. However, it is not limited to these manufacturing methods.
１、環化重合によるもの
（１１ＣＦ＊＝ＣＦ−０−ＣＦ＋＋−ＣＦ＋＋−０−Ｃ
Ｆ＝ＣＦｚ（２） ＣＦｚ・ＣＦ−ＣＦｚ−ＣＦＣＩ−
ＣＦｚ−ＣＦ”ＣＦ−Ｆ２
ＣＦＣＩ
（ＵＳＰ ３２０２６４３など）
＋３） ＣＦ、・ＣＦ−０−ＣＦｚ−ＣＦ＝ＣＦａＣＦ
。1. By cyclization polymerization (11CF*=CF-0-CF++-CF++-0-C
F=CFz(2) CFz・CF−CFz−CFCI−
CFz-CF"CF-F2 CFCI (USP 3202643 etc.) +3) CF, CF-0-CFz-CF=CFaCF
.
ローＣＦ。Low CF.
２、環状モノマーを使用するもの（ＵＳＰ ３９７８０
３０）ＣＦ３ＣＦ３ＣＦ３ＣＦＢ
また、これらの成分の本質を損なわない程度に共重合成
分を使用することは何ら差し支えがない。2. Those using cyclic monomers (USP 39780
30) CF3CF3CF3CFB Furthermore, there is no problem in using copolymerized components to the extent that the essence of these components is not impaired.
共重合せしめる他の単量体としては、ラジカル重合性を
有する千ツマ−であれば、特に限定されずに含フッ素系
、炭化水素系その他が広範囲にわたって例示され得る。Other monomers to be copolymerized are not particularly limited as long as they have radical polymerizability, and include a wide range of fluorine-containing monomers, hydrocarbon monomers, and others.
当然のことであるが、これら他のｊｉｊ ｆｆｆ体は一
種単独で前記特定環構造を主鎖に導入しつる千ツマ−と
ラジカル共重合せしめても良く、あるいは適宜の２種類
以」二を併用して上記共重合反応を行なわせても良い。Of course, these other jij fff bodies may be used alone by introducing the above-mentioned specific ring structure into the main chain and radically copolymerized with Tsurusentsuma, or two or more appropriate types may be used in combination. The above-mentioned copolymerization reaction may be carried out in this manner.
本発明においては、通常は他の単量体としてフルオロオ
レフィン、フルオロビニルエーテルなどの含フッ素系モ
ノマーを選定するのが望ましい。例えば、テトラフルオ
ロエチレン、パーフルオロメチルビニルエーテル、パー
フルオロプロピルビニルエーテル、あるいはカルボン酸
基やスルホン酸基の如き官能基を含有するパーフルオロ
ビニルエーテルなどは好適な具体例であり、弗化ビニリ
デン、弗化ビニル、クロロトリフルオロエチレンなども
例示され得る。In the present invention, it is usually desirable to select fluorine-containing monomers such as fluoroolefins and fluorovinylethers as other monomers. For example, preferred examples include tetrafluoroethylene, perfluoromethyl vinyl ether, perfluoropropyl vinyl ether, and perfluorovinyl ether containing a functional group such as a carboxylic acid group or a sulfonic acid group. , chlorotrifluoroethylene, etc. may also be exemplified.
共重合体組成としては、溶解性および含フッ素ポリマー
としての特性を生かすために、環状構造の組成が２０％
以上が好ましく、更に好ましくは４０％以上であること
が望ましい。As for the copolymer composition, in order to take advantage of its solubility and properties as a fluorine-containing polymer, the composition of the cyclic structure is 20%.
It is preferably at least 40%, more preferably at least 40%.
以上のような特定含フッ素ポリマーは溶媒に可溶であり
、用いられる溶媒としては、上記ポリマーを溶解するも
のであれば限定はないが、パーフルオロベンセン、“ア
フルート” （商品名：旭硝子社製のフッ素系溶剤）、
“フロリナート” （商品名：゛３Ｍ社製のパーフルオ
ロ（２−プチルテトラヒドロフラン）を含んだ液体）、
トリクロロトリフルオロエタン等が好適である。The above-mentioned specific fluorine-containing polymers are soluble in solvents, and the solvents used are not limited as long as they dissolve the above-mentioned polymers. (fluorinated solvents),
“Florinert” (product name: liquid containing perfluoro (2-butyltetrahydrofuran) manufactured by 3M),
Trichlorotrifluoroethane and the like are preferred.
当然のことであるが、適宜の２種類以上を併用して溶媒
として用いることができる。特に混合溶媒の場合、炭化
水素系、塩化炭化水素、弗塩化炭化水素、アルコール、
その他の有機溶媒も併用できる。溶液濃度は０．０１ｗ
ｔ％〜５０ｗｔ％で、好ましくは０．１ｗｊ％〜２０ｗ
ｔ％である。As a matter of course, two or more appropriate types can be used in combination as a solvent. Especially in the case of mixed solvents, hydrocarbons, chlorinated hydrocarbons, fluorochlorinated hydrocarbons, alcohols,
Other organic solvents can also be used in combination. Solution concentration is 0.01w
t% to 50wt%, preferably 0.1wj% to 20w
t%.
本発明のクラッド材ポリマーは、“フロリナート”ＦＣ
−７５などのフッ素系溶媒に可溶で、透明な粘稠液体に
なり得る。又、溶融温度が低く、粘度も比較的低いので
、石英ガラス又は光学ガラスからなるシリカファイバー
にクラッド材として被覆することが容易である。The cladding material polymer of the present invention is “Florinat” FC.
It is soluble in fluorinated solvents such as -75 and can become a transparent viscous liquid. Furthermore, since the melting temperature is low and the viscosity is relatively low, it is easy to coat silica fibers made of quartz glass or optical glass as a cladding material.
本発明のクラッド材を石英ガラスからなるシリカファイ
バーのコアに対して処理してクラッド層を形成する方法
は、コアにクラッド材ポリマーの溶液を被覆して溶媒を
除去するか、あるいは溶融状態で共押出しすることによ
って行なわれる。かかる方法において、被覆方法は、特
に限定されるものではない。例えば、溶液を被覆する場
合、通常のいわゆる線引き装置の使用によるのが好適で
ある。被覆と同時に熱処理による溶媒除去が行なわれる
が、かかる熱処理条件は形成されるクラッド層の厚さ、
溶媒の沸点によって任意に設定される。The method of forming a cladding layer by treating a silica fiber core made of quartz glass with the cladding material of the present invention is to coat the core with a solution of the cladding material polymer and remove the solvent, or to coat the core in a molten state. It is done by extrusion. In this method, the coating method is not particularly limited. For example, when coating solutions, it is suitable to use conventional so-called wire-drawing equipment. The solvent is removed by heat treatment at the same time as coating, and the heat treatment conditions depend on the thickness of the cladding layer to be formed,
It is arbitrarily set depending on the boiling point of the solvent.
本発明のクラッド材からなるクラッド層の形成されたプ
ラスチッククラッド光伝送ファイバーは開口数（ＮＡ≧
０．５）が高く、伝送損失が低く、強度も高いという特
徴を有していて、エネルギー伝送用、画像伝送用、ライ
トガイド用、光通信用などの光伝送ファイバーとして極
めて広範な用途に使用することができる。The plastic clad optical transmission fiber in which the cladding layer made of the cladding material of the present invention is formed has a numerical aperture (NA≧
0.5), low transmission loss, and high strength, it is used in an extremely wide range of applications as optical transmission fiber for energy transmission, image transmission, light guides, optical communications, etc. can do.
又、本発明のクラッド材はシリカファイバーのクラッド
材として好適であるが、シリカファイバーのみに限定さ
れるものではなく、他の材質からなるコアのクラッド材
として使用できるのは勿論である。Furthermore, although the cladding material of the present invention is suitable as a cladding material for silica fibers, it is not limited to silica fibers only, and can of course be used as a cladding material for cores made of other materials.
［作用］
本発明において、主鎖に環構造を有する含フッ素ポリマ
ーは結晶性がなく、フッ素含有量が高いので、透明で低
屈折率であると考えられる。又、ポリマーの強度が高く
、コア材に対する漏れ性も良好なので、光伝送ファイバ
ーの強度が高いと考えられる。[Function] In the present invention, the fluorine-containing polymer having a ring structure in its main chain has no crystallinity and has a high fluorine content, so it is considered to be transparent and have a low refractive index. Furthermore, since the polymer has high strength and good leakage to the core material, it is thought that the strength of the optical transmission fiber is high.
［実施例］
合成例】
パーフルオロアリルビニルエーテルの３０ｇ及び重合開
始剤（ｃ３ｒｔｃｏｌ ２の１０ｍｇを５０ｃｃの硝子
コルベンに入れた。凍結脱気を２回繰り返した後に３０
℃で１６時間重合した。重合中の圧力は大気圧よりも低
かった。重合の結果、重合体を１６ｇ得た。この重合体
の赤外線吸収スペクトルを測定したところ、千ツマ−に
あった二重結合に起因する１７９０ｃｍ−’付近の吸収
はなかった。また、この重合体をパーフルオロベンセン
に溶解し１９ＦのＮＭＩＩスペクトルを測定したところ
、以下の繰り返し構造を示すスペクトルが得られた。[Example] Synthesis Example] 30 g of perfluoroallyl vinyl ether and 10 mg of a polymerization initiator (c3rtcol 2) were placed in a 50 cc glass colben.After repeating freezing and degassing twice,
Polymerization was carried out at ℃ for 16 hours. The pressure during polymerization was below atmospheric pressure. As a result of polymerization, 16 g of polymer was obtained. When the infrared absorption spectrum of this polymer was measured, there was no absorption in the vicinity of 1790 cm-' due to the double bond present in the 1000 mm. Further, when this polymer was dissolved in perfluorobenzene and the NMII spectrum of 19F was measured, a spectrum showing the following repeating structure was obtained.
−ＣＦ２
このポリマーの固有粘度［η］は、“フロリナート”Ｆ
Ｃ−７５（商品名＝３Ｍ社製のパーフル才口（２−ブチ
ルテトラヒドロフラン）を主成分とした液体、以下、Ｆ
Ｃ−７５と略記する）中３０℃で０．５０５であった。-CF2 The intrinsic viscosity [η] of this polymer is “Florinat” F
F
C-75) at 30°C.
重合体のガラス転移点は６９℃であり、室温ではタフで
透明なガラス状の重合体である。またＩＯ％熱分解温度
は４６２℃であり、さらにこの重合体は無色透明であり
、屈折率は１．３４と低く、光線透過率は９５％と高か
った。The glass transition point of the polymer is 69°C, and it is a tough, transparent glass-like polymer at room temperature. Further, the IO% thermal decomposition temperature was 462°C, and furthermore, this polymer was colorless and transparent, had a low refractive index of 1.34, and a high light transmittance of 95%.
実施例１
合成例１で得られた重合体１０ｇを９０３のＦＣ−７５
に溶解させ調製した溶液を石英ガラスファイバー（外径
２００μ）の外周に厚さ２０μとなるように被覆し、４
００℃に保持された加熱炉に導入し、２秒間通過させる
ことにより石英ガラスファイバーの外周にパーフルオロ
アリルビニルエーテル重合体のクラッド層が形成された
プラスチッククラッド光伝送ファイバーを得た。Example 1 10 g of the polymer obtained in Synthesis Example 1 was added to 903 FC-75.
The solution prepared by dissolving the solution was coated on the outer periphery of a quartz glass fiber (outer diameter 200μ) to a thickness of 20μ, and
A plastic clad optical transmission fiber in which a clad layer of perfluoroallyl vinyl ether polymer was formed around the outer periphery of the quartz glass fiber was obtained by introducing the fiber into a heating furnace maintained at 00° C. and passing it through for 2 seconds.
得られた光伝送ファイバーの特性を測定した結果、ＮＡ
は０．５６、伝送損失は５ｄＢ／ｋｍ （８５０ｎｍ）
であり、ファイバー強度は１６ｋｇであった。耐熱試験
として１５０℃に２００時間保持したが、特性の変化は
認められなかった。又得られたファイバーを曲率３ｍｍ
に折り曲げてもクラッドにはクラックとか剥離の発生は
全く認められなかった。As a result of measuring the characteristics of the obtained optical transmission fiber, the NA
is 0.56, transmission loss is 5dB/km (850nm)
The fiber strength was 16 kg. As a heat resistance test, it was held at 150°C for 200 hours, but no change in properties was observed. In addition, the obtained fiber has a curvature of 3 mm.
Even after bending, no cracks or peeling was observed in the cladding.
［発明の効果］
本発明は、主鎖に環構造を有する含フッ素ポリマーをプ
ラスチッククラッド光伝送ファイバー用クラッド材とし
て採用することにより、開口数が高く、伝送損失が低く
、高強度のプラスチッククラッド光伝送ファイバーを得
るという優れた効果を有し、特にパーフルオロポリマー
を用いることにより、耐熱性、耐薬品性も兼ね備えると
いう効果も認められる。[Effects of the Invention] The present invention uses a fluorine-containing polymer having a ring structure in its main chain as a cladding material for a plastic clad optical transmission fiber, thereby producing a plastic clad optical fiber with high numerical aperture, low transmission loss, and high strength. It has the excellent effect of obtaining a transmission fiber, and in particular, by using perfluoropolymer, it is also recognized that it has the effect of having both heat resistance and chemical resistance.
Claims (1)
とを特徴とするプラスチッククラッド光伝送ファイバー
用クラッド材。 ２、環構造が含フッ素環構造である特許請求の範囲第１
項記載のクラッド材。 ３、環構造がエーテル結合含有含フッ素環構造である特
許請求の範囲第１項又は第２項記載のクラッド材。 ４、環構造が４〜７員環構造である特許請求の範囲第１
項〜第３項のいずれか一項に記載のクラッド材。 ５、含フッ素ポリマーがパーフルオロポリマーである特
許請求の範囲第１項〜第４項のいずれか一項に記載の選
択透過膜。 ６、プラスチッククラッド光伝送ファイバーが石英ガラ
スまたは光学ガラスをコアとする光伝送ファイバーであ
る特許請求の範囲第１項〜第５項のいずれか一項に記載
のクラッド 材。[Claims] 1. A cladding material for a plastic clad optical transmission fiber, characterized in that it is made of a fluorine-containing polymer having a ring structure in its main chain. 2. Claim 1 in which the ring structure is a fluorine-containing ring structure
Cladding material as described in section. 3. The cladding material according to claim 1 or 2, wherein the ring structure is a fluorine-containing ring structure containing an ether bond. 4. Claim 1 in which the ring structure is a 4- to 7-membered ring structure
The cladding material according to any one of Items 1 to 3. 5. The selectively permeable membrane according to any one of claims 1 to 4, wherein the fluorine-containing polymer is a perfluoropolymer. 6. The cladding material according to any one of claims 1 to 5, wherein the plastic clad optical transmission fiber is an optical transmission fiber having a core of quartz glass or optical glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62095092A JP2724709B2 (en) | 1987-04-20 | 1987-04-20 | Cladding material for optical transmission fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62095092A JP2724709B2 (en) | 1987-04-20 | 1987-04-20 | Cladding material for optical transmission fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63261204A true JPS63261204A (en) | 1988-10-27 |
| JP2724709B2 JP2724709B2 (en) | 1998-03-09 |
Family
ID=14128265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62095092A Expired - Fee Related JP2724709B2 (en) | 1987-04-20 | 1987-04-20 | Cladding material for optical transmission fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2724709B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0303292A2 (en) * | 1987-08-14 | 1989-02-15 | Asahi Glass Company Ltd. | Cyclic polymerization |
| JPH01126602A (en) * | 1987-11-12 | 1989-05-18 | Asahi Glass Co Ltd | Plastic clad light transmission fiber and bundled fiber |
| JPH02176604A (en) * | 1988-12-28 | 1990-07-09 | Mitsubishi Rayon Co Ltd | Resin composition for clad material of optical fiber |
| JPH02244007A (en) * | 1988-11-29 | 1990-09-28 | Mitsubishi Rayon Co Ltd | Plastic optical fiber |
| JPH032408A (en) * | 1989-05-30 | 1991-01-08 | Asahi Glass Co Ltd | Mirror |
| JPH03123304A (en) * | 1989-10-06 | 1991-05-27 | Mitsubishi Rayon Co Ltd | Heat resistant plastic optical fiber and production thereof |
| JPH03195757A (en) * | 1989-12-26 | 1991-08-27 | Asahi Glass Co Ltd | Fluorine-containing polymer composition for coating and use thereof |
| JPH0451207A (en) * | 1990-06-20 | 1992-02-19 | Mitsubishi Rayon Co Ltd | Heat resistant plastic optical fiber |
| JPH0488304A (en) * | 1990-08-01 | 1992-03-23 | Mitsubishi Rayon Co Ltd | Plastic optical fiber |
| JPH04204505A (en) * | 1990-11-30 | 1992-07-24 | Mitsubishi Rayon Co Ltd | Sheath composition for optical fiber |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4530569A (en) * | 1981-08-20 | 1985-07-23 | E. I. Du Pont De Nemours And Company | Optical fibers comprising cores clad with amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole |
-
1987
- 1987-04-20 JP JP62095092A patent/JP2724709B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4530569A (en) * | 1981-08-20 | 1985-07-23 | E. I. Du Pont De Nemours And Company | Optical fibers comprising cores clad with amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0303292A2 (en) * | 1987-08-14 | 1989-02-15 | Asahi Glass Company Ltd. | Cyclic polymerization |
| JPH01126602A (en) * | 1987-11-12 | 1989-05-18 | Asahi Glass Co Ltd | Plastic clad light transmission fiber and bundled fiber |
| JPH02244007A (en) * | 1988-11-29 | 1990-09-28 | Mitsubishi Rayon Co Ltd | Plastic optical fiber |
| JPH02176604A (en) * | 1988-12-28 | 1990-07-09 | Mitsubishi Rayon Co Ltd | Resin composition for clad material of optical fiber |
| JPH032408A (en) * | 1989-05-30 | 1991-01-08 | Asahi Glass Co Ltd | Mirror |
| JPH03123304A (en) * | 1989-10-06 | 1991-05-27 | Mitsubishi Rayon Co Ltd | Heat resistant plastic optical fiber and production thereof |
| JPH03195757A (en) * | 1989-12-26 | 1991-08-27 | Asahi Glass Co Ltd | Fluorine-containing polymer composition for coating and use thereof |
| JPH0451207A (en) * | 1990-06-20 | 1992-02-19 | Mitsubishi Rayon Co Ltd | Heat resistant plastic optical fiber |
| JPH0488304A (en) * | 1990-08-01 | 1992-03-23 | Mitsubishi Rayon Co Ltd | Plastic optical fiber |
| JPH04204505A (en) * | 1990-11-30 | 1992-07-24 | Mitsubishi Rayon Co Ltd | Sheath composition for optical fiber |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2724709B2 (en) | 1998-03-09 |
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