JPH01186708A - Fire-resistant insulating composition - Google Patents
Fire-resistant insulating compositionInfo
- Publication number
- JPH01186708A JPH01186708A JP748288A JP748288A JPH01186708A JP H01186708 A JPH01186708 A JP H01186708A JP 748288 A JP748288 A JP 748288A JP 748288 A JP748288 A JP 748288A JP H01186708 A JPH01186708 A JP H01186708A
- Authority
- JP
- Japan
- Prior art keywords
- hydroxide
- polyolefin
- additive
- imidazol
- weight part
- 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 description 11
- 230000009970 fire resistant effect Effects 0.000 title 1
- RAXXELZNTBOGNW-UHFFFAOYSA-N 1H-imidazole Chemical compound C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229920000098 polyolefin Polymers 0.000 claims abstract description 11
- 239000000654 additive Substances 0.000 claims abstract description 9
- 230000000996 additive effect Effects 0.000 claims abstract description 6
- 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 claims description 8
- 239000003063 flame retardant Substances 0.000 claims description 8
- 229910000000 metal hydroxide Inorganic materials 0.000 claims description 8
- 150000004692 metal hydroxides Chemical class 0.000 claims description 8
- -1 polyethylene Polymers 0.000 abstract description 6
- 239000007789 gas Substances 0.000 abstract description 5
- 229910052736 halogen Inorganic materials 0.000 abstract description 5
- 150000002367 halogens Chemical class 0.000 abstract description 5
- TYKJILJOXAHUFO-UHFFFAOYSA-N 2-amino-1,4-dihydroimidazol-5-one Chemical compound NC1=NC(=O)CN1 TYKJILJOXAHUFO-UHFFFAOYSA-N 0.000 abstract description 4
- NTYJJOPFIAHURM-UHFFFAOYSA-N Histamine Chemical compound NCCC1=CN=CN1 NTYJJOPFIAHURM-UHFFFAOYSA-N 0.000 abstract description 4
- POJWUDADGALRAB-UHFFFAOYSA-N allantoin Chemical compound NC(=O)NC1NC(=O)NC1=O POJWUDADGALRAB-UHFFFAOYSA-N 0.000 abstract description 4
- YHMYGUUIMTVXNW-UHFFFAOYSA-N 1,3-dihydrobenzimidazole-2-thione Chemical compound C1=CC=C2NC(S)=NC2=C1 YHMYGUUIMTVXNW-UHFFFAOYSA-N 0.000 abstract description 3
- 239000004698 Polyethylene Substances 0.000 abstract description 3
- 229920000573 polyethylene Polymers 0.000 abstract description 3
- QCHFTSOMWOSFHM-WPRPVWTQSA-N (+)-Pilocarpine Chemical compound C1OC(=O)[C@@H](CC)[C@H]1CC1=CN=CN1C QCHFTSOMWOSFHM-WPRPVWTQSA-N 0.000 abstract description 2
- POJWUDADGALRAB-PVQJCKRUSA-N Allantoin Natural products NC(=O)N[C@@H]1NC(=O)NC1=O POJWUDADGALRAB-PVQJCKRUSA-N 0.000 abstract description 2
- HNDVDQJCIGZPNO-YFKPBYRVSA-N L-histidine Chemical compound OC(=O)[C@@H](N)CC1=CN=CN1 HNDVDQJCIGZPNO-YFKPBYRVSA-N 0.000 abstract description 2
- QCHFTSOMWOSFHM-UHFFFAOYSA-N SJ000285536 Natural products C1OC(=O)C(CC)C1CC1=CN=CN1C QCHFTSOMWOSFHM-UHFFFAOYSA-N 0.000 abstract description 2
- 229960000458 allantoin Drugs 0.000 abstract description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract description 2
- 239000000920 calcium hydroxide Substances 0.000 abstract description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract description 2
- 229960001340 histamine Drugs 0.000 abstract description 2
- HNDVDQJCIGZPNO-UHFFFAOYSA-N histidine Natural products OC(=O)C(N)CC1=CN=CN1 HNDVDQJCIGZPNO-UHFFFAOYSA-N 0.000 abstract description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 abstract description 2
- 239000001095 magnesium carbonate Substances 0.000 abstract description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 abstract description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract description 2
- 239000000347 magnesium hydroxide Substances 0.000 abstract description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 229960001416 pilocarpine Drugs 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 4
- 241000233866 Fungi Species 0.000 abstract 2
- 239000004743 Polypropylene Substances 0.000 abstract 1
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 abstract 1
- 239000003517 fume Substances 0.000 abstract 1
- 229960002885 histidine Drugs 0.000 abstract 1
- 229960001545 hydrotalcite Drugs 0.000 abstract 1
- 229910001701 hydrotalcite Inorganic materials 0.000 abstract 1
- 239000012212 insulator Substances 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 238000004132 cross linking Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000010292 electrical insulation Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 1
- XGIDEUICZZXBFQ-UHFFFAOYSA-N 1h-benzimidazol-2-ylmethanethiol Chemical compound C1=CC=C2NC(CS)=NC2=C1 XGIDEUICZZXBFQ-UHFFFAOYSA-N 0.000 description 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- FYWDUQCSMYWUHV-UHFFFAOYSA-N 3-chloro-5-hydroxypentan-2-one Chemical compound CC(=O)C(Cl)CCO FYWDUQCSMYWUHV-UHFFFAOYSA-N 0.000 description 1
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 241001417512 Kyphosidae Species 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Chemical compound CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- DZCCLNYLUGNUKQ-UHFFFAOYSA-N n-(4-nitrosophenyl)hydroxylamine Chemical compound ONC1=CC=C(N=O)C=C1 DZCCLNYLUGNUKQ-UHFFFAOYSA-N 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- ZFLIKDUSUDBGCD-UHFFFAOYSA-N parabanic acid Chemical compound O=C1NC(=O)C(=O)N1 ZFLIKDUSUDBGCD-UHFFFAOYSA-N 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、燃焼時に有毒なガスを発生しない難燃性電
気絶縁組成物、特に電線・ケーブルの絶縁材料やシース
材料への適用に好適な難燃性電気絶縁組成物に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a flame-retardant electrical insulation composition that does not generate toxic gas when burned, and is particularly suitable for application to insulation materials and sheath materials for electric wires and cables. The present invention relates to flame retardant electrical insulation compositions.
［従来の技術］ 最近、ビルディング等の高層建築物１発電所。[Conventional technology] Recently, high-rise buildings such as buildings 1 power station.
各種プラント等に３いて、火災が発生した場合を考慮し
て、人体に対する影響や機器腐蝕の原因となるハロゲン
系ガスを発生しない難燃性電気絶縁ケーブルが強く要望
されるようになってきた。In consideration of the possibility of a fire occurring in various plants, etc., there has been a strong demand for flame-retardant electrically insulated cables that do not emit halogen-based gases that can affect the human body or cause equipment corrosion.
このような要求に対応するため、従来の塩化ビニル樹脂
やクロロプレンゴムに代り、ポリオレフィンに難燃剤と
して金属水酸化物を混和した絶縁材料が検討されている
。In order to meet these demands, insulating materials made of polyolefin mixed with metal hydroxide as a flame retardant are being considered in place of conventional vinyl chloride resins and chloroprene rubber.
［発明が解決しようとする問題点］
ところで、これらの電気絶縁材料は洞道内や地中埋設等
の微生物の成育し易い環境にさらされた場合、ポリエチ
レン等に比ベカビの発育し易いことが最近明らかになっ
てきた。[Problems to be Solved by the Invention] Recently, it has been discovered that when these electrical insulating materials are exposed to environments where microorganisms can easily grow, such as in caves or buried underground, they are more susceptible to mold growth than polyethylene, etc. It's becoming clear.
この発明は、このような点に鑑みてなされたもので、カ
ビに対する抵抗性が高く、しかも発煙量が少ないととも
に有毒なハロゲン系ガス等を発生しない難燃性電気絶縁
組成物を提供することを目的とする。The present invention has been made in view of these points, and aims to provide a flame-retardant electrical insulating composition that is highly resistant to mold, emits less smoke, and does not emit toxic halogen gases. purpose.
［問題点を解決するための手段］
この発明の難燃性電気絶縁組成物は、ポリオレフィン１
００重量部に対し金属水酸化物を５０〜３００重量部お
よびイミダゾール系添加剤を０゜２重量部以上含有させ
たものである。[Means for solving the problems] The flame-retardant electrical insulation composition of the present invention comprises polyolefin 1
It contains 50 to 300 parts by weight of a metal hydroxide and 0.2 parts by weight or more of an imidazole additive per 0.00 parts by weight.
［実 施 例］
この発明におけるポリオレフィンとしては、ポリエチレ
ン、ポリプロピレン、エチレン酢酸ビニルコポリマー、
エチレンエチルアクリレートコポリマー、エチレンプロ
ピレンゴム、エチレンブテンコポリマー等を挙げること
ができる。[Example] The polyolefin in this invention includes polyethylene, polypropylene, ethylene vinyl acetate copolymer,
Examples include ethylene ethyl acrylate copolymer, ethylene propylene rubber, and ethylene butene copolymer.
金属水酸化物としては、水酸化アルミニウム。Aluminum hydroxide is a metal hydroxide.
水酸化マグネシウム、塩基性炭酸マグネシウム。Magnesium hydroxide, basic magnesium carbonate.
水酸化カルシウム、ハイドロタルサイト類等が挙げられ
る。これらの金属水酸化物はポリオレフィン１００重量
部に対して５０〜３００重量部の範囲で含有させる必要
があり、５０重量部未満では目的とする難燃性を付与で
きず、３００重量部を越えると引張特性等の機械的強度
が不十分となる。Examples include calcium hydroxide and hydrotalcites. These metal hydroxides must be contained in a range of 50 to 300 parts by weight per 100 parts by weight of the polyolefin; if it is less than 50 parts by weight, the desired flame retardance cannot be imparted, and if it exceeds 300 parts by weight, Mechanical strength such as tensile properties becomes insufficient.
このような配合系にイミダゾール系添加物を加えること
により、カビ抵抗性が著しく向上することを見出し、こ
の発明に至った。It has been discovered that mold resistance can be significantly improved by adding an imidazole additive to such a blending system, leading to the present invention.
−を有する化合物を言い、具体的には２−メルカプトベ
ンズイミダゾール、２−メルカプトメチル・ベンズイミ
ダゾール、２−メルカプトベンズイミダゾールの亜鉛塩
、パラバン酸、ヒダントイン酸、アラントイン、グリコ
シアミジン、ヒスタミン、ヒスチジン、ピロカルピン等
が挙げられる。- refers to a compound having 2-mercaptobenzimidazole, 2-mercaptomethyl benzimidazole, zinc salt of 2-mercaptobenzimidazole, parabanic acid, hydantoic acid, allantoin, glycocyamidine, histamine, histidine, Examples include pilocarpine.
このようなイミダゾール系添加物は、ポリオレフィン１
００重量部に対して０．２重量部以上含有せしめる必要
があり、０．２重量部未満では十分なカビ抵抗性が得ら
れない。Such imidazole additives are used in polyolefin 1
It is necessary to contain 0.2 parts by weight or more per 00 parts by weight, and if it is less than 0.2 parts by weight, sufficient mold resistance cannot be obtained.
この発明においては、上記成分に加えて架橋剤、酸化防
止剤、滑剤、軟化剤１分散剤等を適宜添加してもよい。In this invention, in addition to the above components, a crosslinking agent, an antioxidant, a lubricant, a softener, a dispersant, etc. may be added as appropriate.
架橋剤としては、ジクミルパーオキサイド、３−ビス（
ｔ−ブチルパーオキシイソプロピル）ベンゼンに代表さ
れる有機過酸化物が適切であり、これに架橋助剤として
、ｔｊ、Ｓ、エチレンジメタアクリレート、ジアリルフ
タレート、ｐ−キノンジオキシム等を併用してもよい。As a crosslinking agent, dicumyl peroxide, 3-bis(
Organic peroxides represented by t-butylperoxyisopropyl)benzene are suitable, and tj, S, ethylene dimethacrylate, diallyl phthalate, p-quinone dioxime, etc. are used in combination with this as a crosslinking aid. Good too.
また、電子線等の電離性放射線による架橋の場合には、
架橋助剤としてトリメチロールプロパントリメリテート
、トリアリルイソシアヌレート等の反応性のモノマーを
添加するのが一般的である。In addition, in the case of crosslinking using ionizing radiation such as electron beams,
It is common to add reactive monomers such as trimethylolpropane trimellitate and triallyl isocyanurate as crosslinking aids.
さらに、ビニルトリメトキシシランに代表されるシリコ
ーン化合物をポリオレフィンにグラフトあるいは共重合
させ、水分の存在下で架橋することも可能である。Furthermore, it is also possible to graft or copolymerize a silicone compound typified by vinyltrimethoxysilane to a polyolefin and crosslink it in the presence of moisture.
以下、具体的な実施例について説明する。Hereinafter, specific examples will be described.
第１表に示すような配合割合に従って各種成分を温度１
００〜１２０℃に一保持した６インチロールに投入して
混線を行い、その後この組成物を用い電線およびシート
を作成し、実施例１〜実施例７および比較例１〜比較例
３の試料とした。電線は４０ ｍ／ｍ押出機（１，／Ｄ
−２５）を用い、外径２．０層−の銅線上に厚さ１．０
１に押出し被覆を行い、架橋を施すものは、その後圧力
１３ ｋｇ／ｍ■２の水蒸気雰囲気中に３分間保持して
架橋し電線を作製して試料とした。また、シートは８０
トンの熱プレスを用い圧力１００ ｋｇ／ｃｍ”、温度
１７０℃でｌａｍ厚に成形した。なお、架橋を施すもの
は１２０°Ｃで予備成・形後、温度１８０℃、１０分の
条件でシートを作製し試料とした。Mix various ingredients at 1 temperature according to the mixing ratios shown in Table 1.
The composition was placed in a 6-inch roll maintained at 00 to 120°C to mix wires, and then electric wires and sheets were made using this composition, and the compositions were mixed with the samples of Examples 1 to 7 and Comparative Examples 1 to 3. did. The electric wire is 40 m/m extruder (1,/D
-25) with a thickness of 1.0 on a copper wire with an outer diameter of 2.0 layers.
1 was extrusion coated and cross-linked, and then held in a steam atmosphere at a pressure of 13 kg/m2 for 3 minutes to cross-link, thereby producing an electric wire as a sample. Also, the seat is 80
The sheet was formed into a lam thickness using a 100 kg/cm" pressure and a temperature of 170°C using a 100-ton heat press. For crosslinking, the sheet was preformed and formed at 120°C, and then the sheet was molded at a temperature of 180°C for 10 minutes. was prepared and used as a sample.
６例についての評価結果を第１表に纒めて示す、なお、
この評価は次に記載した点に基づいて行った。The evaluation results for the six cases are summarized in Table 1.
This evaluation was performed based on the points described below.
難燃性：ＪＩＳ Ｃ３００４に基づき、水平に保持し
た電線をバーナで燃焼後バーナを取り去り、１分以内に
消えれば合格であり、１分以上燃えるものは不合格とし
た。Flame retardancy: Based on JIS C3004, a wire held horizontally was burned with a burner, and then the burner was removed. If the burner went out within 1 minute, it was passed, and if it burned for more than 1 minute, it was judged to be rejected.
引張特性：架橋後に銅線を引き抜き、温度２０°Ｃの恒
温室に１日放置した後、ショパ型引張試験機により引張
速度５００園臘／■ｉｎで測定した。Tensile properties: After crosslinking, the copper wire was pulled out and left in a constant temperature room at a temperature of 20°C for one day, and then measured using a Chopa type tensile tester at a tensile rate of 500 feet/inch.
カビ抵抗性試験：ＪＩＳ Ｚ ２９１１の繊維製品
の湿式法に準拠して５０ｘ５０■−角のシートを用い、
２週間培養後判定した。Mold resistance test: Using a 50x50 square sheet in accordance with JIS Z 2911 wet method for textile products,
Judgment was made after 2 weeks of culture.
第１表からも明らかなように、この発明に係る実施例１
〜実施例７のものは、難燃性および引張特性に優れ、培
養期間が２週間経過後もカビの発育は認められなかった
。As is clear from Table 1, Example 1 according to the present invention
~Example 7 had excellent flame retardancy and tensile properties, and no mold growth was observed even after two weeks of culture.
これに対し、比較例１は金属水酸化物の含有量が規定値
未満のものであり、難燃性が不十分である。また、比較
例２は金属水酸化物の含有量が規定値を越えるものであ
り、引張特性が著しく悪化している。さらに、比較例３
はイミダゾール系添加剤の含有量が規定値未満のもので
あり、カビ抵抗性が著しく劣り、カビの発育が認められ
る。On the other hand, in Comparative Example 1, the content of metal hydroxide was less than the specified value, and the flame retardance was insufficient. Further, in Comparative Example 2, the content of metal hydroxide exceeds the specified value, and the tensile properties are significantly deteriorated. Furthermore, comparative example 3
The content of imidazole-based additives is less than the specified value, and the mold resistance is extremely poor, and mold growth is observed.
［発明の効果］
以上説明したように、この発明の難燃性電気絶縁組成物
はポリオレフィンに金属水酸化物を混和するに当り、イ
ミダゾール系添加剤を加えるものであり、難燃性、引張
特性Ｓよびカビ抵抗性に優れ、しかも燃焼時に有毒なハ
ロゲン系ガスの発生を抑制できるようになり、洞道内や
地中埋設等の用途に適用できる優れた電線・ケーブルを
形成することができる。[Effects of the Invention] As explained above, the flame-retardant electrical insulating composition of the present invention has imidazole-based additives added to the polyolefin when mixing the metal hydroxide, and has improved flame retardancy and tensile properties. It has excellent S and mold resistance, and can suppress the generation of toxic halogen gases during combustion, making it possible to form excellent electric wires and cables that can be used in applications such as inside tunnels or buried underground.
Claims (1)
０〜３００重量部およびイミダゾール系添加剤を０．２
重量部以上含有することを特徴とする難燃性電気絶縁組
成物。5 parts of metal hydroxide per 100 parts by weight of polyolefin
0 to 300 parts by weight and 0.2 parts of imidazole additive
1. A flame-retardant electrical insulating composition containing at least part by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP748288A JPH01186708A (en) | 1988-01-19 | 1988-01-19 | Fire-resistant insulating composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP748288A JPH01186708A (en) | 1988-01-19 | 1988-01-19 | Fire-resistant insulating composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01186708A true JPH01186708A (en) | 1989-07-26 |
Family
ID=11666984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP748288A Pending JPH01186708A (en) | 1988-01-19 | 1988-01-19 | Fire-resistant insulating composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01186708A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0581936A (en) * | 1991-09-24 | 1993-04-02 | Hitachi Cable Ltd | Adhesive flame resistance cross-linked insulated wire |
| JPH0794028A (en) * | 1993-09-24 | 1995-04-07 | Hitachi Cable Ltd | Polypropylene-insulated electric wire |
| US6642289B2 (en) * | 1996-12-27 | 2003-11-04 | Polyplastics Co., Ltd. | Polyacetal resin composition and moldings |
-
1988
- 1988-01-19 JP JP748288A patent/JPH01186708A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0581936A (en) * | 1991-09-24 | 1993-04-02 | Hitachi Cable Ltd | Adhesive flame resistance cross-linked insulated wire |
| JPH0794028A (en) * | 1993-09-24 | 1995-04-07 | Hitachi Cable Ltd | Polypropylene-insulated electric wire |
| US6642289B2 (en) * | 1996-12-27 | 2003-11-04 | Polyplastics Co., Ltd. | Polyacetal resin composition and moldings |
| US7041718B2 (en) | 1996-12-27 | 2006-05-09 | Polyplastics Co., Ltd. | Polyacetal resin composition and moldings |
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