JPH04230714A - Flame-retardant waterproof composition and optical fiber cable or metallic conductor cable for communication packed therewith - Google Patents
Flame-retardant waterproof composition and optical fiber cable or metallic conductor cable for communication packed therewithInfo
- Publication number
- JPH04230714A JPH04230714A JP3096974A JP9697491A JPH04230714A JP H04230714 A JPH04230714 A JP H04230714A JP 3096974 A JP3096974 A JP 3096974A JP 9697491 A JP9697491 A JP 9697491A JP H04230714 A JPH04230714 A JP H04230714A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- powder
- flame
- parts
- optical fiber
- 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.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 98
- 239000003063 flame retardant Substances 0.000 title claims abstract description 39
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 239000013307 optical fiber Substances 0.000 title claims abstract description 32
- 239000004020 conductor Substances 0.000 title claims abstract description 24
- 238000004891 communication Methods 0.000 title claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 50
- 235000015110 jellies Nutrition 0.000 claims abstract description 40
- 239000008274 jelly Substances 0.000 claims abstract description 40
- CXUJOBCFZQGUGO-UHFFFAOYSA-F calcium trimagnesium tetracarbonate Chemical compound [Mg++].[Mg++].[Mg++].[Ca++].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O CXUJOBCFZQGUGO-UHFFFAOYSA-F 0.000 claims abstract description 17
- 229910000515 huntite Inorganic materials 0.000 claims abstract description 17
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims abstract description 15
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 11
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 11
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 11
- 239000011812 mixed powder Substances 0.000 claims description 28
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 25
- 229910052736 halogen Inorganic materials 0.000 claims description 10
- 150000002367 halogens Chemical class 0.000 claims description 10
- 239000011342 resin composition Substances 0.000 claims description 8
- 239000012756 surface treatment agent Substances 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims 1
- 238000004381 surface treatment Methods 0.000 abstract description 5
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 26
- 239000011162 core material Substances 0.000 description 9
- 238000002156 mixing Methods 0.000 description 9
- -1 hydrosaltite Chemical compound 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 238000011049 filling Methods 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 229920002545 silicone oil Polymers 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000004114 Ammonium polyphosphate Substances 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000005662 Paraffin oil Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 235000019826 ammonium polyphosphate Nutrition 0.000 description 2
- 229920001276 ammonium polyphosphate Polymers 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
- 235000014380 magnesium carbonate Nutrition 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- IEKHISJGRIEHRE-UHFFFAOYSA-N 16-methylheptadecanoic acid;propan-2-ol;titanium Chemical compound [Ti].CC(C)O.CC(C)CCCCCCCCCCCCCCC(O)=O.CC(C)CCCCCCCCCCCCCCC(O)=O.CC(C)CCCCCCCCCCCCCCC(O)=O IEKHISJGRIEHRE-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- UUEWCQRISZBELL-UHFFFAOYSA-N 3-trimethoxysilylpropane-1-thiol Chemical compound CO[Si](OC)(OC)CCCS UUEWCQRISZBELL-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 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
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 229940045985 antineoplastic platinum compound Drugs 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- MASNVFNHVJIXLL-UHFFFAOYSA-N ethenyl(ethoxy)silicon Chemical compound CCO[Si]C=C MASNVFNHVJIXLL-UHFFFAOYSA-N 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 150000003058 platinum compounds Chemical class 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011814 protection agent Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、難燃性防水組成物とそ
れを用いた光ファイバケーブルまたは通信用金属導体ケ
ーブルに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flame-retardant waterproof composition and an optical fiber cable or communication metal conductor cable using the same.
【０００２】0002
【従来の技術】光ファイバケーブルにおいては、その火
災防止や水の浸入に基づく伝送ロスの増加防止のために
、また通信用金属導体ケーブルの場合は、同じく火災防
止や水の浸入に基づく混練などの防止のために、いずれ
も、様々な難燃化対策と防水化対策が立てられている。[Prior Art] Optical fiber cables are used to prevent fires and to prevent increases in transmission loss due to water intrusion, and in the case of communication metal conductor cables, they are kneaded to prevent fires and to prevent water intrusion. In order to prevent this, various flame retardant and waterproof measures have been taken.
【０００３】それら対策のうち、オイル成分に難燃剤を
混和してジェリー混和物とし、この混和物をケーブル内
に充填することにより光ファイバや金属導体を封入して
ケーブル全体としての難燃性と防水性を発現させること
が行なわれている。Among these measures, flame retardant is mixed with the oil component to form a jelly mixture, and this mixture is filled into the cable to encapsulate optical fibers and metal conductors, thereby increasing the flame retardance of the cable as a whole. Efforts are being made to make it waterproof.
【０００４】0004
【発明が解決しようとする課題】このようなジェリー混
和物としては、シリコーン系オイルに白金または白金系
化合物を添加したものがある。しかしこの混和物は、白
金が非常に高価であり、製造コストが高くなるという問
題がある。また、パラフィン系オイルにハロゲン系難燃
剤を添加したジェリー混和物がある。しかし、この混和
物は、燃焼時に有害ガスを発生するという問題がある。[Problems to be Solved by the Invention] Such jelly mixtures include silicone oils to which platinum or platinum compounds are added. However, this mixture has a problem in that platinum is very expensive and manufacturing costs are high. There is also a jelly mixture made by adding halogen flame retardants to paraffin oil. However, this mixture has the problem of generating harmful gases when burned.
【０００５】その他、オイルに水酸化マグネシウムを配
合したジェリー混和物がある。しかし、この混和物の難
燃性を実用上満足できるまで高めるためには多量の水酸
化マグネシウムを配合することが必要であるが、その場
合には混和物の粘度が高くなりすぎてケーブル内への充
填作業が困難となる。本発明は、従来のジェリー混和物
における上記した問題を解決し、難燃性や防水性が優れ
ていることは勿論、安価であり、燃焼時においても有害
ガスを発生することがない難燃性防水組成物と、それを
用いた光ファイバケーブルおよび通信用金属導体ケーブ
ルの提供を目的とする。[0005] In addition, there are jelly mixtures containing oil and magnesium hydroxide. However, in order to increase the flame retardance of this mixture to a level that is practically satisfactory, it is necessary to incorporate a large amount of magnesium hydroxide, but in this case, the viscosity of the mixture becomes too high and it is difficult to get into the cable. This makes filling work difficult. The present invention solves the above-mentioned problems with conventional jelly mixtures, and has excellent flame retardant and waterproof properties, is inexpensive, and has flame retardant properties that do not generate harmful gases even when burned. The purpose of the present invention is to provide a waterproof composition, and optical fiber cables and communication metal conductor cables using the same.
【０００６】[0006]
【課題を解決するための手段】上記した目的を達成する
ために、本発明においては、オイル成分１００重量部、
ハンタイト粉末４０〜８０重量％とハイドロマグネサイ
ト粉末２０〜６０重量％とを含む混合粉末２０〜４００
重量部から成るジェリー混和物であることを特徴とする
難燃性防水組成物（以下、第１組成物という）、オイル
成分１００重量部、ハンタイト粉末２０〜４０重量％と
ハイドロマグネサイト粉末１０〜３０重量％と水酸化マ
グネシウム粉末３０〜７０重量％とを含む混合粉末２０
〜４００重量部から成るジェリー混和物であることを特
徴とする難燃性防水組成物（以下、第２組成物という）
、およびオイル成分１００重量部、ならびに前記第１お
よび／または第２組成物における混合粉末の全体を表面
処理剤で処理した処理粉末２０〜４００重量部のジェリ
ー混和物であることを特徴とする難燃性防水組成物（以
下、第３組成物という）が提供され、１本または複数の
光ファイバ心線が配設されたコアと、前記コアの外側に
順次形成された押え巻き層とシース層とを有する光ファ
イバケーブルにおいて、前記光ファイバ心線が、前記第
１〜第３組成物のいずれかによって封入され、少なくと
も前記シース層が非ハロゲン系難燃性樹脂組成物から形
成されていることを特徴とする難燃性防水型光ファイバ
ケーブル、また、１本または複数本の金属導体の外側に
順次形成された押え巻き層と金属層とシース層とを有す
る通信用金属導体ケーブルにおいて、前記金属導体が、
前記第１〜第３組成物のいずれかによって封入され、少
なくとも前記シース層が非ハロゲン系難燃性樹脂組成物
で形成されていることを特徴とする難燃性防水型通信金
属導体ケーブルが提供される。[Means for Solving the Problems] In order to achieve the above object, in the present invention, 100 parts by weight of an oil component,
Mixed powder 20-400 containing 40-80% by weight of huntite powder and 20-60% by weight of hydromagnesite powder
A flame-retardant waterproof composition characterized in that it is a jelly mixture consisting of parts by weight of a jelly mixture (hereinafter referred to as the first composition), 100 parts by weight of an oil component, 20 to 40 parts by weight of huntite powder, and 10 to 10 parts by weight of hydromagnesite powder. Mixed powder 20 containing 30% by weight and 30-70% by weight of magnesium hydroxide powder
A flame-retardant waterproof composition (hereinafter referred to as second composition) characterized in that it is a jelly mixture comprising ~400 parts by weight.
, and 100 parts by weight of an oil component, and a jelly mixture containing 20 to 400 parts by weight of a treated powder obtained by treating the entire mixed powder in the first and/or second composition with a surface treatment agent. A flammable waterproof composition (hereinafter referred to as the third composition) is provided, and includes a core in which one or more coated optical fibers are arranged, and a pressing layer and a sheath layer sequentially formed on the outside of the core. In the optical fiber cable, the optical fiber core wire is encapsulated with any one of the first to third compositions, and at least the sheath layer is formed of a non-halogen flame-retardant resin composition. A flame-retardant waterproof optical fiber cable characterized by The metal conductor
Provided is a flame-retardant waterproof communication metal conductor cable encapsulated by any one of the first to third compositions, wherein at least the sheath layer is formed of a non-halogen flame-retardant resin composition. be done.
【０００７】まず、本発明において、ケーブル内に充填
して光ファイバや金属導体を封入するジェリー混和物は
、ベース成分となるオイル成分と後述する組成物粉末と
を含有するものである。オイル成分としては、パラフィ
ン系オイル、シリコーン系オイル、エチレンとα−オレ
フィン共重合体のオイルおよびポリブテン系オイルなど
を用いることができる。First, in the present invention, the jelly mixture that is filled into the cable to encapsulate the optical fiber and the metal conductor contains an oil component serving as a base component and a composition powder to be described later. As the oil component, paraffin oil, silicone oil, ethylene and α-olefin copolymer oil, polybutene oil, etc. can be used.
【０００８】これらのオイル成分は、ケーブル内への充
填作業性や充填後のケーブル内部における保持性等を考
慮し、適宜な粘度に調節することが好ましい。例えば、
シリコーン系オイルの場合には、２５℃における粘度が
７０〜１５，０００ｃＳｔのものが好ましい。このオイ
ル成分に難燃性粉末を混和して、ジェリー混和物である
前記した第１組成物、第２組成物または第３組成物が調
製される。[0008] These oil components are preferably adjusted to an appropriate viscosity in consideration of ease of filling into the cable, retention within the cable after filling, and the like. for example,
In the case of silicone oil, one having a viscosity of 70 to 15,000 cSt at 25°C is preferable. The above-described first composition, second composition, or third composition, which is a jelly mixture, is prepared by mixing flame retardant powder with this oil component.
【０００９】まず、第１組成物は、オイル成分に、ハン
タイト粉末とハイドロマグネサイト粉末との混合粉末を
混和したものである。この場合の混合粉末は、酸素指数
が２５以上であることが好ましい。ここで、ハンタイト
は、Ｍｇ３・Ｃａ（ＣＯ３ ）４ の式で示される白色
の結晶体である。また、ハイドロマグネサイトは、例え
ば、Ｍｇ４ （ＣＯ３ ）３ ・（ＯＨ）２ ・３Ｈ２
Ｏの式またはＭｇ５ （ＣＯ３ ）４ ・（ＯＨ）２
・４Ｈ２ Ｏの式で示されるもので、水菱苦土石とも
呼ばれるものである。First, the first composition is a mixture of an oil component and a mixed powder of huntite powder and hydromagnesite powder. In this case, the mixed powder preferably has an oxygen index of 25 or more. Here, huntite is a white crystalline substance represented by the formula Mg3.Ca(CO3)4. In addition, hydromagnesite is, for example, Mg4 (CO3)3 ・(OH)2 ・3H2
Formula of O or Mg5 (CO3 )4 ・(OH)2
・It is represented by the formula 4H2O, and is also called waterstone.
【００１０】混合粉末におけるハンタイト粉末とハイド
ロマグネサイト粉末の混合割合は、ハンタイト粉末が４
０〜８０重量％で、ハイドロマグネサイト粉末が２０〜
６０重量％である。ハンタイト粉末の割合が４０重量％
未満の場合は、ジェリー混和物の低温における流動性が
低下し、ハンタイト粉末の割合が８０重量％を超える場
合はジェリー混和物の難燃性が低下する。好ましい混合
割合は、ハンタイト粉末が６０〜７０重量％で、ハイド
ロマグネサイト粉末が４０〜３０重量％である。[0010] The mixing ratio of huntite powder and hydromagnesite powder in the mixed powder is as follows:
0 to 80% by weight, and hydromagnesite powder is 20 to 80% by weight.
It is 60% by weight. Huntite powder proportion is 40% by weight
If the proportion of huntite powder is less than 80% by weight, the fluidity of the jelly mixture at low temperatures will decrease, and if the proportion of huntite powder exceeds 80% by weight, the flame retardance of the jelly mixture will decrease. A preferred mixing ratio is 60 to 70% by weight of huntite powder and 40 to 30% by weight of hydromagnesite powder.
【００１１】この混合粉末には、更に、炭酸マグネシウ
ム、炭酸カルシウムなどの炭酸塩、その他アルミニウム
、鉄、カリウム、ケイ素などを含む無機塩類を混合して
もよく、また、公知の難燃剤、例えば、水酸化アルミニ
ウム、水酸化マグネシウム、ハイドロサルタイト、赤リ
ン、ポリリン酸アンモニウム、カーボンブラックを混合
してもよい。[0011] This mixed powder may further be mixed with carbonates such as magnesium carbonate and calcium carbonate, and other inorganic salts containing aluminum, iron, potassium, silicon, etc. Also, known flame retardants such as Aluminum hydroxide, magnesium hydroxide, hydrosaltite, red phosphorus, ammonium polyphosphate, and carbon black may be mixed.
【００１２】この混合粉末のオイル成分への配合量は、
オイル成分１００重量部に対して混合粉末が２０〜４０
０重量部である。混合粉末の配合量が２０重量部未満の
場合は難燃性の低下が認められ、また、４００重量部を
超える場合は得られた組成物（ジェリー混合物）の流動
性が低下してケーブルへの充填作業が困難となり、しか
も防水性が低下するからである。[0012] The amount of this mixed powder added to the oil component is as follows:
20 to 40 parts of mixed powder per 100 parts by weight of oil component
It is 0 parts by weight. When the blended amount of the mixed powder is less than 20 parts by weight, a decrease in flame retardancy is observed, and when it exceeds 400 parts by weight, the fluidity of the resulting composition (jelly mixture) decreases and it is difficult to attach to the cable. This is because filling work becomes difficult and waterproofness deteriorates.
【００１３】次の第２組成物は、上記した第１組成物に
おける混合粉末に更に水酸化マグネシウム粉末を混合し
、得られたその混合粉末をオイル成分に混和したジェリ
ー混和物である。この第２組成物は前記第１組成物より
も難燃性と防水性を向上させる。第２組成物における混
合粉末は、第１組成物における混合粉末に比べて、その
混合粉末の粒径よりも小さい粒径の水酸化マグネシウム
粉末を含んでいるので、全体として、オイル成分への分
散性が良好で、またオイル成分との分離も起こりずらい
という利点を備えているからである。The following second composition is a jelly mixture in which magnesium hydroxide powder is further mixed with the mixed powder of the above-described first composition, and the obtained mixed powder is mixed with an oil component. This second composition has improved flame retardancy and waterproofness over the first composition. Compared to the mixed powder in the first composition, the mixed powder in the second composition contains magnesium hydroxide powder with a smaller particle size than that of the mixed powder, so that it is dispersed in the oil component as a whole. This is because it has the advantage that it has good properties and is difficult to separate from oil components.
【００１４】この混合粉末における各粉末の混合割合は
、ハンタイト粉末２０〜４０重量％、ハイドロマグネサ
イト粉末１０〜３０重量％、水酸化マグネシウム粉末３
０〜７０重量％に設定される。ここで、水酸化マグネシ
ウム粉末の混合量が３０重量％未満の場合は、混和され
た組成物（ジェリー混和物）の低温下における流動性が
前記した第１の組成物より向上せず、更に、オイル成分
との分散性も向上しなくなり、また、７０重量％を超え
ると、混和された組成物の難燃性が低下するようになり
、そしてこの難燃性を前記した第１組成物の難燃性と同
等にすると、流動性の低下が引き起こされてケーブルへ
の重点作業性が悪くなるからである。The mixing ratio of each powder in this mixed powder is 20-40% by weight of huntite powder, 10-30% by weight of hydromagnesite powder, and 3% by weight of magnesium hydroxide powder.
It is set at 0 to 70% by weight. Here, if the amount of magnesium hydroxide powder mixed is less than 30% by weight, the fluidity of the mixed composition (jelly mixture) at low temperature will not be improved compared to the first composition described above, and further, The dispersibility with the oil component also does not improve, and when the amount exceeds 70% by weight, the flame retardancy of the mixed composition decreases, and this flame retardancy is lower than that of the first composition described above. This is because if the flammability is made equal to the flammability, the fluidity will be lowered, making it difficult to work on the cable.
【００１５】そして、この混合粉末において、残りの必
須成分はハンタイト粉末とハイドロマグネシウム粉末の
混合粉末になるが、この場合のハンタイト粉末とハイド
ロマグネサイト粉末との混合割合は、前記した第１組成
物における混合粉末の場合と同じ理由によって、両者の
間では、それぞれ、４０〜８０重量％，２０〜６０重量
％となるように調整される。[0015] In this mixed powder, the remaining essential components are a mixed powder of huntite powder and hydromagnesite powder, but in this case, the mixing ratio of huntite powder and hydromagnesite powder is the same as that of the first composition described above. For the same reason as in the case of the mixed powder, the amounts are adjusted to 40 to 80% by weight and 20 to 60% by weight, respectively.
【００１６】上記した混合粉末のオイル成分への配合量
は、前記した第１組成物の場合と同じ理由によって、オ
イル成分１００重量部に対し２０〜４００重量部に設定
される。第３組成物は、前記した第１組成物または第２
組成物の調製に用いる各混合粉末の全体に、予め、表面
処理剤で表面処理を施し、得られた処理粉末をオイル成
分に配合したジェリー混和物である。The amount of the above-mentioned mixed powder added to the oil component is set at 20 to 400 parts by weight per 100 parts by weight of the oil component for the same reason as in the case of the first composition. The third composition is the first composition or the second composition described above.
This is a jelly mixture in which the entire mixed powder used for preparing the composition is previously subjected to surface treatment with a surface treatment agent, and the resulting treated powder is blended with an oil component.
【００１７】この第３組成物においては、前記処理粉末
のオイル成分への分散性が前記第２組成物の混合粉末の
場合よりも格段に向上し、オイル成分との分離も起こら
ず、ケーブルに充填したときに、全体の難燃性と防水性
を顕著に高めることができる。上記した効果の理由はい
まだ明らかではないが、表面処理を施さない異種の複数
粉末を表面処理剤とともに攪拌混合すると、性質の異な
る粒子相互間の接触が起こり、このため同種の粒子相互
間の接触の場合よりも互いの接触機会が増大し、その結
果、それぞれを個別に表面処理したものを混合した場合
では得られなかった表面処理状態が形成されるものと考
えられる。[0017] In this third composition, the dispersibility of the treated powder in the oil component is much improved compared to the case of the mixed powder of the second composition, and separation from the oil component does not occur, and the cable When filled, the overall flame retardant and waterproof properties can be significantly increased. The reason for the above effect is not yet clear, but when multiple powders of different types without surface treatment are stirred and mixed together with a surface treatment agent, contact between particles with different properties occurs, which leads to contact between particles of the same type. It is thought that the opportunities for contact with each other are greater than in the case of , and as a result, a surface treatment state is formed that could not be obtained when individually surface-treated materials were mixed.
【００１８】この処理粉末の調製時に用いる表面処理剤
としては、ビニルエトキシシラン、γ−メルカプトプロ
ピルトリメトキシシランのようなシラン系カップリング
剤；イソプロピルトリイソステアロイルチタネートのよ
うなチタネート系カップリング剤；ステアリン酸、オレ
イン酸などの脂肪酸およびそれらの金属塩など公知のも
のをあげることができる。[0018] Surface treatment agents used in the preparation of this treated powder include silane coupling agents such as vinyl ethoxysilane and γ-mercaptopropyltrimethoxysilane; titanate coupling agents such as isopropyl triisostearoyl titanate; Known fatty acids such as stearic acid and oleic acid and metal salts thereof can be mentioned.
【００１９】なお、この表面処理の方法については特に
限定されるものではない。すなわち、前記した第１組成
物または第２組成物における混合粉末と前記した表面処
理剤とを例えばヘンシェルミキサーを用いて直接混合し
てもよく、また表面処理剤を一旦溶媒に分散せしめてか
ら、得られた溶液と前記混合粉末を混合したのち、溶媒
を揮発させるという方法で行なってもよい。この場合に
用いる溶媒としては、有害な廃棄物を発生させることも
なく、経済的にも有利であるという点で水を用いること
が望ましい。Note that the method of this surface treatment is not particularly limited. That is, the mixed powder of the first composition or the second composition described above and the surface treatment agent described above may be directly mixed using, for example, a Henschel mixer, or after the surface treatment agent is once dispersed in a solvent, This may be carried out by mixing the obtained solution and the mixed powder and then evaporating the solvent. As the solvent used in this case, it is desirable to use water because it does not generate harmful waste and is economically advantageous.
【００２０】処理粉末を調製する際における表面処理剤
の配合量としては、前記混合粉末１００重量部に対し、
０．３〜８重量部、好ましくは０．５〜５重量部である
。この配合量が０．３重量部未満の場合には効果が不充
分であり、また８重量部を超えてもその効果は飽和に達
して変わらないためである。このジェリー混和物には、
上記成分のほかにも本発明の目的を損なわない範囲内で
、公知の、酸化防止剤、紫外線防止剤、熱安定剤、無機
または有機顔料、放射線防御剤、分散剤、中和剤、可塑
剤、気泡防止剤、増粘剤などを配合することができる。
本発明の難燃性防水型光ファイバケーブルのスペーサタ
イプのものを断面図として図１に示す。[0020] The blending amount of the surface treatment agent when preparing the treated powder is as follows:
The amount is 0.3 to 8 parts by weight, preferably 0.5 to 5 parts by weight. If the amount is less than 0.3 parts by weight, the effect will be insufficient, and if it exceeds 8 parts by weight, the effect will reach saturation and remain unchanged. This jelly mixture contains
In addition to the above components, known antioxidants, ultraviolet inhibitors, heat stabilizers, inorganic or organic pigments, radiation protection agents, dispersants, neutralizing agents, and plasticizers may be added to the extent that the purpose of the present invention is not impaired. , an antifoaming agent, a thickener, etc. can be added. FIG. 1 shows a cross-sectional view of a spacer-type flame-retardant waterproof optical fiber cable of the present invention.
【００２１】図において、中心に抗張力体から成る芯材
１で支持されたスペーサ２の周囲には、複数個（図では
４個）の溝３が長手方向に延びて形成され、この各溝３
の中に、複数枚（図では３枚）の光ファイバ心線４が収
容され、これらの溝に前記した第１組成物、第２組成物
または第３組成物であるジェリー混合物５を充填して、
前記光ファイバ心線４が封入されている。In the figure, a plurality of (four in the figure) grooves 3 are formed extending in the longitudinal direction around a spacer 2 supported by a core member 1 made of a tensile strength member at the center.
A plurality of optical fibers 4 (three in the figure) are accommodated in the grooves, and the jelly mixture 5, which is the first composition, second composition, or third composition, is filled in the grooves. hand,
The optical fiber core 4 is enclosed.
【００２２】そして、スペーサ２の外周に押え巻きテー
プを巻いて押え巻き層６を形成し、更にその外周に非ハ
ロゲン系難燃性樹脂組成物を例えば押出被覆してシース
層７が形成されている。押え巻き層６の形成に用いるテ
ープは非ハロゲン系難燃性テープであることが好ましい
が、非難燃性のテープであってもよい。[0022] Then, a press-wrap tape is wrapped around the outer periphery of the spacer 2 to form a press-wrap layer 6, and a sheath layer 7 is further formed by coating the outer periphery with a non-halogen flame retardant resin composition, for example, by extrusion. There is. The tape used to form the pressure wrapping layer 6 is preferably a non-halogen flame retardant tape, but may be a flame retardant tape.
【００２３】例えば、非ハロゲン系難燃性テープは、不
織布、綿布、麻布などの基材の上に、水酸化アルミニウ
ム、水酸化マグネシウム、赤リン、ポリリン酸アンモニ
ウム、カーボン、ハンタイト粉末とマグネサイト粉末を
主体とした混合粉末などの難燃剤粉末とハロゲンを含ま
ないエチレン−酢酸ビニル共重合体、液状ゴムのような
バインダーとの混和物を塗布して製造することができる
。また、必要に応じて、更に発泡剤、充填剤、老化防止
剤などを添加することもできる。For example, a non-halogen flame retardant tape is made of aluminum hydroxide, magnesium hydroxide, red phosphorus, ammonium polyphosphate, carbon, huntite powder, and magnesite powder on a base material such as nonwoven fabric, cotton fabric, linen fabric, etc. It can be manufactured by applying a mixture of a flame retardant powder such as a mixed powder mainly composed of , and a binder such as a halogen-free ethylene-vinyl acetate copolymer or liquid rubber. Moreover, a blowing agent, a filler, an anti-aging agent, etc. can be further added as required.
【００２４】シース層７を形成する非ハロゲン系難燃性
樹脂組成物は、オレフィン系樹脂に押え巻層の形成に用
いたものと同様の難燃剤を配合してなる樹脂組成物から
形成することができる。この樹脂組成物の酸素指数は２
９以上であることが好ましい。なお、本発明の難燃性防
水型光ファイバケーブルは、必要に応じて押え巻き層６
とシース層７との間に金属遮蔽層を介在させることもで
きる。The non-halogen flame-retardant resin composition forming the sheath layer 7 may be formed from a resin composition obtained by blending an olefin resin with a flame retardant similar to that used to form the pressure-wrap layer. I can do it. The oxygen index of this resin composition is 2
It is preferably 9 or more. Note that the flame-retardant waterproof optical fiber cable of the present invention may be provided with a pressing layer 6 if necessary.
A metal shielding layer can also be interposed between the sheath layer 7 and the sheath layer 7.
【００２５】本発明の難燃性防水型光ファイバケーブル
においては、光ファイバ心線４が優れた難燃性と防水性
を有するジェリー混和物５により封入されており、更に
、光ファイバ心線４が収納されたスペーサ２の周囲に設
けられたシース層７が優れた難燃性を有する非ハロゲン
系材料から形成されている。本発明の通信用導体金属ケ
ーブルを斜視図として図２に示す。In the flame-retardant waterproof optical fiber cable of the present invention, the optical fiber core 4 is encapsulated with a jelly mixture 5 having excellent flame retardant and waterproof properties, and the optical fiber core 4 A sheath layer 7 provided around the spacer 2 in which the spacer 2 is housed is made of a non-halogen material having excellent flame retardancy. FIG. 2 shows a perspective view of a communication conductor metal cable of the present invention.
【００２６】図において、複数本の金属導体８を束ねて
導体が形成され、その周囲に前記した押え巻きテープを
巻回して押え巻き層９が形成されたのち、その外周を例
えばアルミテープで被覆して金属層１０が形成され、こ
の金属層１０を押え巻きテープ１１で保持したのち、そ
の外周に前記したシース層１２で押出被覆されている。
そして、金属導体８の間には本発明のジェリー混和物１
３が充填されることにより、前記金属導体８がジェリー
混和物１３によって封入されている。In the figure, a conductor is formed by bundling a plurality of metal conductors 8, and the above-mentioned pressing tape is wound around the conductor to form a pressing layer 9, and then the outer periphery is covered with, for example, aluminum tape. A metal layer 10 is formed, and after this metal layer 10 is held with a pressure tape 11, its outer periphery is extruded and coated with the sheath layer 12 described above. The jelly mixture 1 of the present invention is placed between the metal conductors 8.
3, the metal conductor 8 is encapsulated by the jelly mixture 13.
【００２７】[0027]
【実施例】実施例１〜７，比較例１〜４表１に示した成
分を表示の割合（重量部）でヘンシェルミキサーを用い
て７５０ｒｐｍで混合攪拌し、各種のジェリー混和物を
調製した。これらの各ジェリー混和物とそれを充填した
光ファイバにつき、下記仕様の特性評価を行なった。Examples Examples 1 to 7, Comparative Examples 1 to 4 Various jelly mixtures were prepared by mixing and stirring the ingredients shown in Table 1 in the indicated proportions (parts by weight) using a Henschel mixer at 750 rpm. The characteristics of each of these jelly mixtures and the optical fibers filled with them were evaluated according to the following specifications.
【００２８】分散性：縦１７０ｍｍ、横１４ｍｍ、厚み
０．９ｍｍの鉛板の上に、中央が縦１００ｍｍ、横１０
ｍｍの矩形状に切り抜かれている縦１６０ｍｍ、横１６
０ｍｍ、厚み１ｍｍのポリエチレンシートを置き、この
矩形状の切り抜き部にジェリー混和物を１ｍｍの厚みと
なるように均一に充填したのち、前記ポリエチレンシー
トを取り除き、鉛板の上に、縦１００ｍｍ、横１０ｍｍ
、厚み１ｍｍのジェリー混和物を付着させて試料とした
。この試料を、−１０℃の温度で２４時間放置したのち
、ジェリー混和物の付着面が外側になるように、直径１
０ｍｍ、長さ２００ｍｍの金属棒に螺旋状に巻きつけ、
そのときに、ジェリー混和物の表面に割れが発生しない
ものを合格（○印）、割れが発生したものを不合格（×
印）とした。Dispersibility: On a lead plate measuring 170 mm long, 14 mm wide and 0.9 mm thick, the center is 100 mm long and 10 mm wide.
160 mm long and 16 mm wide cut out in a rectangular shape
A polyethylene sheet with a thickness of 0 mm and a thickness of 1 mm was placed, and the rectangular cutout was evenly filled with the jelly mixture to a thickness of 1 mm.The polyethylene sheet was removed and a sheet of 100 mm in length and width was placed on a lead plate. 10mm
A sample was prepared by adhering a 1 mm thick jelly mixture. After leaving this sample at a temperature of -10°C for 24 hours, it was prepared with a diameter of 1.
0mm, wrapped spirally around a metal rod with a length of 200mm,
At that time, those with no cracks on the surface of the jelly mixture passed (marked with ○), and those with cracks failed (x).
mark).
【００２９】分離性：ＪＩＳＫ２２２０で規定する難油
度試験によって評価した。すなわち、ジェリー混和物を
、７０℃の恒温空気浴中で２４時間放置したときに、ジ
ェリー混和物のオイル分が金網メッシュから滴下してい
ないものを合格（○印）、滴下しているものを不合格（
×印）とした。充填性：ＪＩＳＫ２２２０で規定する稠
度試験によって評価した。すなわち、２５℃における稠
度が１５０（０．１ｍｍ）以上のものを合格（○印）、
１５０（０．１ｍｍ）未満のものを不合格（×印）とし
た。Separability: Evaluated by oil resistance test specified in JISK2220. In other words, when the jelly mixture is left in a constant-temperature air bath at 70°C for 24 hours, the oil in the jelly mixture that does not drip from the wire mesh is passed (marked with a circle), and the oil that does drip is passed. failure(
× mark). Filling property: Evaluated by consistency test specified in JISK2220. In other words, those with a consistency of 150 (0.1 mm) or higher at 25°C pass (marked with ○),
Those with a diameter of less than 150 (0.1 mm) were rejected (marked with an x).
【００３０】難燃性：ＪＩＳＫ７２０１で規定する方法
に準拠して評価した。すなわち、外径３ｍｍ、内径２ｍ
ｍのガラススリーブを長さ１１０ｍｍに切断し、この切
断ガラススリーブの中にジェリー混和物を充填し、また
、ガラススリーブの外側にもむらのない状態にジェリー
混和物を塗布して酸素指数測定用の試料とし、この燃焼
試験を行なった。酸素指数が２５以上のものを合格（○
印）、酸素指数が２５未満のものを不合格（×印）とし
た。Flame retardancy: Evaluated in accordance with the method specified in JISK7201. That is, outer diameter 3mm, inner diameter 2m
Cut a 110 mm long glass sleeve, fill the cut glass sleeve with the jelly mixture, and apply the jelly mixture evenly to the outside of the glass sleeve to measure the oxygen index. This combustion test was conducted using a sample of Pass those with an oxygen index of 25 or higher (○
), and those with an oxygen index of less than 25 were rejected (x).
【００３１】ケーブルの難燃性：各ジェリー混和物を充
填した光ファイバケーブルにつき、ＩＥＥＥ ＳＴＤ
．３８３で規定する方法に準拠して光ファイバケーブル
の垂直燃焼試験をした。この燃焼による損傷長が１．８
ｍ未満のものを合格（○印）、損傷長が１．８ｍ以上の
ものを不合格（×印）とした。ケーブルの防水性：まず
、１．５ｍの長さに切断した光ファイバケーブルの一端
に、水密に被包するようにポリエチレンパイプを接続し
た。次に、このポリエチレンパイプの中に水を入れ、パ
イプの前記接続部と反対の端部（光ケーブル一端部）が
下方に、かつ両端部の高さの差が１ｍになるように傾斜
させて固定した。そのままの状態で２４時間放置し、前
記光ファイバケーブル一端部から水が滲み出ていないも
のを合格（○印）、滲み出したものを不合格（×印）と
した。Cable flame retardancy: IEEE STD for optical fiber cables filled with each jelly mixture.
．． A vertical combustion test of an optical fiber cable was conducted in accordance with the method specified in 383. The damage length due to this combustion is 1.8
Those with a damaged length of less than 1.8 m were determined to be passed (marked with ○), and those with a damaged length of 1.8 m or more were determined to be rejected (marked with x). Waterproofness of cable: First, a polyethylene pipe was connected to one end of the optical fiber cable cut into a length of 1.5 m so as to cover it watertightly. Next, fill the polyethylene pipe with water and fix it by tilting it so that the end of the pipe opposite to the connection part (one end of the optical cable) is facing downward and the difference in height between both ends is 1 m. did. The optical fiber cable was left as it was for 24 hours, and those in which water did not ooze out from one end of the optical fiber cable were judged to be passed (marked with ○), and those in which water oozed out were judged to be rejected (marked in x).
【００３２】以上の結果を一括して表１に示した。The above results are summarized in Table 1.
【００３３】[0033]
【表１】[Table 1]
【００３４】[0034]
【発明の効果】以上の説明で明らかなように、本発明の
難燃性防水組成物は、優れた防水性を有するとともに優
れた難燃性も備えていて、しかも燃焼時にあっても有害
ガスを発生することがなく、従来のように高価な白金な
どを用いないのでコストも低廉である。したがって、こ
の難燃性防水組成物を充填した光ファイバケーブルや通
信用金属導体ケーブルは優れた防水性と難燃性を兼備し
、工業的価値は大である。[Effects of the Invention] As is clear from the above explanation, the flame-retardant waterproof composition of the present invention has excellent waterproof properties and excellent flame retardancy, and furthermore, even when burned, no harmful gases are emitted. The cost is low because it does not use expensive platinum or the like as in the conventional method. Therefore, optical fiber cables and communication metal conductor cables filled with this flame-retardant waterproof composition have both excellent waterproof properties and flame-retardant properties, and are of great industrial value.
【図１】光ファイバケーブルの断面構造を示す概略図で
ある。FIG. 1 is a schematic diagram showing a cross-sectional structure of an optical fiber cable.
【図２】通信用金属導体ケーブルを示す概略斜視図であ
る。FIG. 2 is a schematic perspective view showing a communication metal conductor cable.
１ 芯材 ２ スペーサ ３ 溝 ４ 光ファイバ心線 ５ ジェリー─混和物 ６ 押え巻き層 ７ シース層 ８ 金属導体 ９ 押え巻き層 １０ 金属層 １１ 押え巻きテープ １２ シース層 １３ ジェリー混和物 1 Core material 2 Spacer 3 groove 4 Optical fiber core 5. Jelly - mixture 6 Pressure winding layer 7 Sheath layer 8 Metal conductor 9 Pressure winding layer 10 Metal layer 11 Presser winding tape 12 Sheath layer 13 Jelly mixture
Claims (5)
粉末４０〜８０重量％とハイドロマグネサイト粉末２０
〜６０重量％とを含む混合粉末２０〜４００重量部から
成るジェリー混和物であることを特徴とする難燃性防水
組成物。Claim 1: 100 parts by weight of oil component, 40-80% by weight of huntite powder and 20 parts by weight of hydromagnesite powder.
A flame-retardant waterproof composition characterized in that it is a jelly mixture comprising 20 to 400 parts by weight of a mixed powder containing 60% by weight.
粉末２０〜４０重量％とハトロマグネサイト粉末１０〜
３０重量％と水酸化マグネシウム粉末３０〜７０重量％
とを含む混合粉末２０〜４００重量部から成るジェリー
混和物であることを特徴とする難燃性防水組成物。Claim 2: 100 parts by weight of oil component, 20-40% by weight of huntite powder, and 10-40% by weight of hatromagnesite powder.
30% by weight and magnesium hydroxide powder 30-70% by weight
A flame-retardant waterproof composition characterized in that it is a jelly mixture comprising 20 to 400 parts by weight of mixed powder.
項１および請求項２の混合粉末の全体を表面処理剤で処
理した処理粉末２０〜４００重量部とのジェリー混和物
であることを特徴とする難燃性防水組成物。3. A jelly mixture comprising 100 parts by weight of the oil component and 20 to 400 parts by weight of the treated powder obtained by treating the entire mixed powder of claims 1 and 2 with a surface treatment agent. Flame retardant waterproof composition.
設されたコアと、前記コアの外側に順次形成された押え
巻き層とシース層とを有する光ファイバケーブルにおい
て、前記光ファイバ心線が、請求項１〜３のいずれかの
難燃性防水組成物によって封入され、少なくとも前記シ
ース層が非ハロゲン系難燃性樹脂組成物から形成されて
いることを特徴とする難燃性防水型光ファイバケーブル
。4. An optical fiber cable comprising a core in which one or more coated optical fibers are disposed, and a pressure winding layer and a sheath layer sequentially formed on the outside of the core, wherein the coated optical fiber is encapsulated by the flame-retardant waterproof composition according to any one of claims 1 to 3, and at least the sheath layer is formed from a non-halogen flame-retardant resin composition. fiber optic cable.
順次形成された押え巻き層と金属層とシース層とを有す
る通信用金属導体ケーブルにおいて、前記金属導体が、
請求項１〜３のいずれかの難燃性防水組成物によって封
入され、少なくとも前記シース層が非ハロゲン系難燃性
樹脂組成物で形成されていることを特徴とする難燃性防
水型通信用金属導体ケーブル。5. A communication metal conductor cable having a presser wrap layer, a metal layer, and a sheath layer sequentially formed on the outside of one or more metal conductors, wherein the metal conductor comprises:
A flame-retardant waterproof communication device encapsulated with the flame-retardant waterproof composition according to any one of claims 1 to 3, wherein at least the sheath layer is formed of a non-halogen flame-retardant resin composition. Metal conductor cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3096974A JPH04230714A (en) | 1990-05-22 | 1991-04-26 | Flame-retardant waterproof composition and optical fiber cable or metallic conductor cable for communication packed therewith |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2-131919 | 1990-05-22 | ||
| JP13191990 | 1990-05-22 | ||
| JP3096974A JPH04230714A (en) | 1990-05-22 | 1991-04-26 | Flame-retardant waterproof composition and optical fiber cable or metallic conductor cable for communication packed therewith |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04230714A true JPH04230714A (en) | 1992-08-19 |
Family
ID=26438114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3096974A Pending JPH04230714A (en) | 1990-05-22 | 1991-04-26 | Flame-retardant waterproof composition and optical fiber cable or metallic conductor cable for communication packed therewith |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04230714A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016528325A (en) * | 2013-06-27 | 2016-09-15 | ブルースター・シリコーンズ・フランス・エスアエス | Thermally vulcanizable polyorganosiloxane composition that can be used particularly for the production of electrical wires or cables |
-
1991
- 1991-04-26 JP JP3096974A patent/JPH04230714A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016528325A (en) * | 2013-06-27 | 2016-09-15 | ブルースター・シリコーンズ・フランス・エスアエス | Thermally vulcanizable polyorganosiloxane composition that can be used particularly for the production of electrical wires or cables |
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