JPS5879202A - Waterproof mixture for optical fiber cable - Google Patents
Waterproof mixture for optical fiber cableInfo
- Publication number
- JPS5879202A JPS5879202A JP56177862A JP17786281A JPS5879202A JP S5879202 A JPS5879202 A JP S5879202A JP 56177862 A JP56177862 A JP 56177862A JP 17786281 A JP17786281 A JP 17786281A JP S5879202 A JPS5879202 A JP S5879202A
- Authority
- JP
- Japan
- Prior art keywords
- mixture
- waterproof
- cable
- optical fibers
- fibers
- 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
- 239000000203 mixture Substances 0.000 title claims abstract description 36
- 239000013307 optical fiber Substances 0.000 title claims abstract description 11
- 239000012169 petroleum derived wax Substances 0.000 claims abstract description 11
- 235000019381 petroleum wax Nutrition 0.000 claims abstract description 11
- 239000004698 Polyethylene Substances 0.000 claims abstract description 9
- -1 polyethylene Polymers 0.000 claims abstract description 9
- 229920000573 polyethylene Polymers 0.000 claims abstract description 9
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 7
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 5
- 239000011256 inorganic filler Substances 0.000 claims description 5
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 5
- 239000003921 oil Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910021389 graphene Inorganic materials 0.000 claims 1
- 239000000835 fiber Substances 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 6
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 3
- 239000004927 clay Substances 0.000 abstract description 2
- 239000004519 grease Substances 0.000 abstract description 2
- 239000005662 Paraffin oil Substances 0.000 abstract 2
- 239000000945 filler Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004078 waterproofing Methods 0.000 description 4
- 229920001083 polybutene Polymers 0.000 description 3
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- HXIQYSLFEXIOAV-UHFFFAOYSA-N 2-tert-butyl-4-(5-tert-butyl-4-hydroxy-2-methylphenyl)sulfanyl-5-methylphenol Chemical compound CC1=CC(O)=C(C(C)(C)C)C=C1SC1=CC(C(C)(C)C)=C(O)C=C1C HXIQYSLFEXIOAV-UHFFFAOYSA-N 0.000 description 1
- 241000282693 Cercopithecidae Species 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000004264 Petrolatum Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004200 microcrystalline wax Substances 0.000 description 1
- 235000019808 microcrystalline wax Nutrition 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 1
- 239000010690 paraffinic oil Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229940066842 petrolatum Drugs 0.000 description 1
- 235000019271 petrolatum Nutrition 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
Classifications
-
- 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
- G02B6/4401—Optical cables
-
- 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
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Elements Other Than Lenses (AREA)
- Insulated Conductors (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は防水光フアイバケーブルに使用される防水混
和物に関するものである。DETAILED DESCRIPTION OF THE INVENTION This invention relates to waterproofing admixtures for use in waterproof fiber optic cables.
防水光フアイバケーブルはケーブル内の光フアイバー間
及びこれを束ねたユニット間の空所を完全に防水混和物
で充実することにより外部からの水の浸入を防いで、吸
水によるファイバの機械的強度の低下ならびに伝送損失
の増大を抑えるとともにファイバ間及びユニット6性を
与えケーブルに一層の可撓性を付与するものであるが、
これに使用される混和物は一般のシェリーケーブル用に
使用される混和物すなわちペトロラタム系混和物が、日
本国内にあってはポリブテン系混和物が使用されて゛い
る。Waterproof optical fiber cables completely fill the spaces between the optical fibers in the cable and between the units that bundle them with a waterproofing compound to prevent water from entering from the outside and reduce the mechanical strength of the fibers due to water absorption. In addition to suppressing the decrease in transmission loss and increase in transmission loss, it also provides inter-fiber and unit 6 properties and gives the cable more flexibility.
The mixture used for this is a petrolatum-based mixture that is used for general Shelly cables, and in Japan, a polybutene-based mixture is used.
(トロラタム系混和物は石油精製後の4トロラタムに低
分子量のポリエチレン又は石油ワックスや酸化防止剤を
加えたものであり、ポリブテン系混和物はポリブテンに
石油ワックスや酸化防止剤等を加えたものである。これ
らの混和物は加温して流動状態となし、ケーブルシース
内に注入するのであるが、これらの混和物を光ファイノ
々ケーブル用混和物として用いた場合には、ケーブル注
入の際温度80〜100℃程度に混和物を加熱するため
にファイバに歪が入り、伝送損が増加すること、また、
注入した混和物が冷却固化すると体積収縮があるために
混和物に隙間が入り、そこを水が侵透して防水が不充分
となること、さらに、これら混和物はべとべとしていて
ケーブルの接続の場合に拭きと勺に大変手数がかかるな
どの欠点があった。(Trollatum-based mixtures are made by adding low-molecular-weight polyethylene, petroleum wax, and antioxidants to 4-trolatam after petroleum refinement, and polybutene-based mixtures are made by adding petroleum wax, antioxidants, etc. to polybutene. These mixtures are heated to a fluid state and injected into the cable sheath, but when these mixtures are used as mixtures for optical fiber cables, the temperature during injection into the cable is Heating the mixture to about 80 to 100°C causes strain in the fiber, increasing transmission loss;
When the injected mixture cools and solidifies, the volume shrinks, creating gaps in the mixture that allow water to penetrate, resulting in insufficient waterproofing.Furthermore, these mixtures are sticky, making it difficult to connect cables. There were drawbacks such as the fact that it took a lot of time to wipe and comb.
本発明は、ナフテン:%C,シ〈はパラフィン系の油と
、低分子量ポリエチレン又は石油ワッークスと無機充填
剤と必要により加えられる酸化防止剤とからなる防水光
フアイバケーブル用混和物であって、加熱することなく
注入ができ、収縮による透水性を防止し、接続に際し拭
きとすが容易な優れた性能の防水用混和物を提供するも
のである。The present invention is a mixture for waterproof optical fiber cables consisting of naphthene:%C, paraffinic oil, low molecular weight polyethylene or petroleum wax, an inorganic filler, and an antioxidant added as necessary. To provide a waterproofing mixture with excellent performance, which can be injected without heating, prevents water permeability due to shrinkage, and is easy to wipe off during connection.
即ち゛、本発明による防水光フアイバケーブル用混和物
は、上記の各成分を混和することによシ得られ、常温で
は粘稠なグリース状であり、ケーブルへの注入は常温で
容易に行ない得る。したかっで、ケーブル内のファイバ
に歪を与えることがなく、歪による伝送損の増大は起き
ない。また、′ケーブルへの注入が常温で行なわれるの
で、混和物の冷却固化による体”積収縮は全くない。し
たかって、ケーブル内の混和物に隙間が入ることがなく
、防水特性が損なわれることもない。That is, the mixture for waterproof optical fiber cables according to the present invention is obtained by mixing the above-mentioned components, and is in the form of a viscous grease at room temperature, and can be easily injected into cables at room temperature. . Therefore, no distortion is applied to the fibers in the cable, and no increase in transmission loss due to distortion occurs. In addition, since the injection into the cable is carried out at room temperature, there is no volumetric shrinkage due to cooling and solidification of the admixture.Therefore, there are no gaps in the admixture within the cable, and the waterproof properties are not impaired. Nor.
また、防水ケーブルの接続作業に際して、接続部や端末
部に付着している防水混和物の拭ぎと夛は、本発明の混
和物のベースが油であるので、簡単に拭き取ることがで
き、接続作業が篩上する。In addition, when connecting waterproof cables, the waterproof mixture adhering to the connection parts and terminal parts can be easily wiped off and removed because the mixture of the present invention is based on oil. The work is sieved.
1
他方、本発明の混和物は、低iポリエチレン又は石油ワ
ックスとさらに無機充填物を添加し滴゛点を高くしてい
るので、混和物がケーブル端部カニら垂れ落るととはな
い。1. On the other hand, since the mixture of the present invention has a high dropping point by adding low-i polyethylene or petroleum wax and an inorganic filler, the mixture does not drip down from the end of the cable.
本1発明の混和物について更に詳述すれば、混和−物中
油はベースとなるバインダーとして使用されるものであ
るが、ナフテン系もしくはパラフィン系鉱油が電気特性
もよく、ケーブル接続によく用いるコネクター材料のポ
リカーぎネートに対してもストレスクラックを生ずるお
それが少なく、かつコスト上も低摩である。これに対し
、アロマティック系鉱油はポリカーゲネートにストレス
クラックを生じ易く電気特性も悪いので好ましくない。To explain the mixture of the present invention in more detail, the oil in the mixture is used as a base binder, but the naphthenic or paraffinic mineral oil has good electrical properties and is a connector material often used for cable connections. It is less likely to cause stress cracks even with polycarbonate, and is low in cost and friction. On the other hand, aromatic mineral oils are not preferred because they tend to cause stress cracks in polycargenate and have poor electrical properties.
また、低分子量ポリエチレン又は石油ワックスは混和物
の粘度調節と滴点を高くするために添加゛するものであ
るが、低分子量ポリエチレンメしてはVCポリエチレン
が、また石油ワックスとしてはノやラフィンヮレクスや
マイクロクリスタリンワックス等がある。In addition, low molecular weight polyethylene or petroleum wax is added to adjust the viscosity of the mixture and increase the dropping point. There are microcrystalline waxes, etc.
また、無機充填剤は混和物に低分子量ポリエチレン又は
石油ワックスの添加だけでは充分でない粘度調節と滴点
の上昇を目的に添加するものであるが、具体的にはクレ
ー、炭酸カルシウム、シリカ、炭酸マグネシウム、タル
ク等がある。Additionally, inorganic fillers are added to the mixture for the purpose of controlling viscosity and increasing the dropping point, which is not sufficient when adding low molecular weight polyethylene or petroleum wax alone.Specifically, inorganic fillers include clay, calcium carbonate, silica, and Magnesium, talc, etc.
また、酸化防止剤は混和物の酸化防止に作用するもので
あり、例えばフェノ、−ル系安定剤として、テトラキス
〔メチレン−3(3,5t−ブチル−4−ハイドロオキ
シフェニル)グロピオネ−?)/タン・・・商品名イル
ガノッス1010や4,4′−チオ−ビス(3−メチル
−6−t−ブチルフェノール)・・・商品名サント−ノ
ックスRや2,6−ジーt−ブチル−p−クレゾール・
・・商品名BHT等があげられるが、これに畝定される
もので々い。Further, the antioxidant acts to prevent oxidation of the mixture. For example, as a phenol-based stabilizer, tetrakis[methylene-3(3,5t-butyl-4-hydroxyphenyl)gropione-?] )/tan...Product name: Irganoss 1010 or 4,4'-thio-bis(3-methyl-6-t-butylphenol)...Product name: Santo-Nox R or 2,6-di-t-butyl-p -Cresol・
...Product names such as BHT may be mentioned, but most of them are defined by this.
本発明の混和物の好ましい組成はつぎのとおりである。The preferred composition of the mixture of the present invention is as follows.
油 100重量
部低分子量ポリエチレン又は石油ワックス 5〜25
〃・無機充填側 10〜5σ I酸化
防止剤 0.1〜1 〃本発明の混和
物において・、油100重量部に対し、低分子量ポリ)
エチレン又ね石油ワックスが5重量部未満では粘稠度が
不足して常温下で滴下性を帯び好ましくなく、25重量
部を越えては常温流動性がなくなるので好ましくない。Oil 100 parts by weight Low molecular weight polyethylene or petroleum wax 5-25
〃・Inorganic filling side 10 to 5σ I antioxidant 0.1 to 1 〃In the mixture of the present invention・Low molecular weight polyester per 100 parts by weight of oil)
If the ethylene or petroleum wax is less than 5 parts by weight, the wax will lack viscosity and will become drippy at room temperature, which is undesirable. If it exceeds 25 parts by weight, the wax will not have fluidity at room temperature, which is undesirable.
重量部を越えると常温流動性を阻害するーようになるの
で好ましくない。If the amount exceeds 1 part by weight, the room temperature fluidity will be inhibited, which is not preferable.
つぎに本発明の混和物と従来の防水混和物とを比較すれ
ば、つぎのとおっである。Next, if we compare the mixture of the present invention and a conventional waterproof mixture, we will see the following.
特開Q 58−79202(3)
傘1 : JIB K 2524 % m定温度2
5℃傘2 : JIB K 2561
申 3−4: JIB C2101、I M
klx申s : JIB Czxoi
中6 : IIPOM−142C
傘7 : RIA Pie−39
特許出願人 日本電信電話公社
藤倉、電S株式会社
代理人 竹 内 守JP-A-58-79202 (3) Umbrella 1: JIB K 2524% m constant temperature 2
5℃ Umbrella 2: JIB K 2561 Monkey 3-4: JIB C2101, IM
klx agent: JIB Czxoi Junior high school 6: IIPOM-142C Umbrella 7: RIA Pie-39 Patent applicant Nippon Telegraph and Telephone Public Corporation Fujikura, Dens Corporation agent Mamoru Takeuchi
Claims (1)
リエチレン又は石油ワックス−と、無機充填剤と必要に
応じ酸化防止剤とを加えてなることを特徴とする防水光
ファイバケーゾル用混和物。1. A mixture for waterproof optical fiber kesol, characterized in that it is made by adding naphthenic or graphene oil, low molecular weight polyethylene or petroleum wax, an inorganic filler and, if necessary, an antioxidant.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56177862A JPS5879202A (en) | 1981-11-06 | 1981-11-06 | Waterproof mixture for optical fiber cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56177862A JPS5879202A (en) | 1981-11-06 | 1981-11-06 | Waterproof mixture for optical fiber cable |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5879202A true JPS5879202A (en) | 1983-05-13 |
JPH0348483B2 JPH0348483B2 (en) | 1991-07-24 |
Family
ID=16038371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56177862A Granted JPS5879202A (en) | 1981-11-06 | 1981-11-06 | Waterproof mixture for optical fiber cable |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5879202A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0160778A1 (en) * | 1984-03-03 | 1985-11-13 | Mitsubishi Cable Industries, Ltd. | Waterproof optical fiber cable |
JPS63271302A (en) * | 1987-04-08 | 1988-11-09 | アリカン テレフォン アンド テレグラフ カムパニー | Communication distributing system |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5643610A (en) * | 1979-09-17 | 1981-04-22 | Nippon Telegr & Teleph Corp <Ntt> | Jelly filled optical fiber cable |
-
1981
- 1981-11-06 JP JP56177862A patent/JPS5879202A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5643610A (en) * | 1979-09-17 | 1981-04-22 | Nippon Telegr & Teleph Corp <Ntt> | Jelly filled optical fiber cable |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0160778A1 (en) * | 1984-03-03 | 1985-11-13 | Mitsubishi Cable Industries, Ltd. | Waterproof optical fiber cable |
US4703997A (en) * | 1984-03-03 | 1987-11-03 | Dainichi-Nippon Cables, Ltd. | Waterproof optical fiber cable |
JPS63271302A (en) * | 1987-04-08 | 1988-11-09 | アリカン テレフォン アンド テレグラフ カムパニー | Communication distributing system |
Also Published As
Publication number | Publication date |
---|---|
JPH0348483B2 (en) | 1991-07-24 |
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