JPH01200512A - Fire-resistant electric insulation composition - Google Patents
Fire-resistant electric insulation compositionInfo
- Publication number
- JPH01200512A JPH01200512A JP2470188A JP2470188A JPH01200512A JP H01200512 A JPH01200512 A JP H01200512A JP 2470188 A JP2470188 A JP 2470188A JP 2470188 A JP2470188 A JP 2470188A JP H01200512 A JPH01200512 A JP H01200512A
- Authority
- JP
- Japan
- Prior art keywords
- niobium
- inorganic
- fire
- niobium compound
- flame
- 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 10
- 238000009413 insulation Methods 0.000 title abstract description 3
- 230000009970 fire resistant effect Effects 0.000 title abstract 6
- 150000002822 niobium compounds Chemical class 0.000 claims abstract description 20
- 229920000098 polyolefin Polymers 0.000 claims abstract description 10
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 9
- 239000010955 niobium Substances 0.000 claims abstract description 9
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 9
- 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 11
- 239000003063 flame retardant Substances 0.000 claims description 11
- 239000012796 inorganic flame retardant Substances 0.000 claims description 9
- 238000010292 electrical insulation Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 6
- HFLAMWCKUFHSAZ-UHFFFAOYSA-N niobium dioxide Chemical compound O=[Nb]=O HFLAMWCKUFHSAZ-UHFFFAOYSA-N 0.000 abstract description 4
- 231100000419 toxicity Toxicity 0.000 abstract description 4
- 230000001988 toxicity Effects 0.000 abstract description 4
- 229920001577 copolymer Polymers 0.000 abstract description 3
- DUSBUJMVTRZABV-UHFFFAOYSA-M [O-2].O[Nb+4].[O-2] Chemical compound [O-2].O[Nb+4].[O-2] DUSBUJMVTRZABV-UHFFFAOYSA-M 0.000 abstract description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 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
- 239000003517 fume Substances 0.000 abstract 2
- 238000002485 combustion reaction Methods 0.000 description 8
- 238000001125 extrusion Methods 0.000 description 6
- 229910052736 halogen Inorganic materials 0.000 description 5
- 150000002367 halogens Chemical class 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- 239000003431 cross linking reagent Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- -1 polyethylene, ethylene vinyl acetate Polymers 0.000 description 2
- 239000000779 smoke Substances 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
- LZFZQYNTEZSWCP-UHFFFAOYSA-N 2,6-dibutyl-4-methylphenol Chemical compound CCCCC1=CC(C)=CC(CCCC)=C1O LZFZQYNTEZSWCP-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
- PMAAOHONJPSASX-UHFFFAOYSA-N 2-butylperoxypropan-2-ylbenzene Chemical compound CCCCOOC(C)(C)C1=CC=CC=C1 PMAAOHONJPSASX-UHFFFAOYSA-N 0.000 description 1
- CXLATMDDROQJAI-UHFFFAOYSA-N CCCCO[Nb] Chemical compound CCCCO[Nb] CXLATMDDROQJAI-UHFFFAOYSA-N 0.000 description 1
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical compound C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 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
- VDZMENNHPJNJPP-UHFFFAOYSA-N boranylidyneniobium Chemical compound [Nb]#B VDZMENNHPJNJPP-UHFFFAOYSA-N 0.000 description 1
- WXCZUWHSJWOTRV-UHFFFAOYSA-N but-1-ene;ethene Chemical compound C=C.CCC=C WXCZUWHSJWOTRV-UHFFFAOYSA-N 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-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
- 238000007765 extrusion coating Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- IJCCNPITMWRYRC-UHFFFAOYSA-N methanolate;niobium(5+) Chemical compound [Nb+5].[O-]C.[O-]C.[O-]C.[O-]C.[O-]C IJCCNPITMWRYRC-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Inorganic materials O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 description 1
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 1
- CGAFRZVAXRQUEI-UHFFFAOYSA-N niobium(5+);propan-1-olate Chemical compound [Nb+5].CCC[O-].CCC[O-].CCC[O-].CCC[O-].CCC[O-] CGAFRZVAXRQUEI-UHFFFAOYSA-N 0.000 description 1
- ZTILUDNICMILKJ-UHFFFAOYSA-N niobium(v) ethoxide Chemical compound CCO[Nb](OCC)(OCC)(OCC)OCC ZTILUDNICMILKJ-UHFFFAOYSA-N 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- UYLYBEXRJGPQSH-UHFFFAOYSA-N sodium;oxido(dioxo)niobium Chemical compound [Na+].[O-][Nb](=O)=O UYLYBEXRJGPQSH-UHFFFAOYSA-N 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
Landscapes
- Organic Insulating Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、燃焼時に有毒なハロゲン系ガスを発生しない
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
に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention is a flame-retardant electrical insulation composition that does not generate toxic halogen gas when burned, and is particularly applicable to insulation materials and sheath materials for electric wires and cables. The present invention relates to a flame-retardant electrical insulation composition suitable for.
電線・ケーブルの絶縁材料やシース材料としては電気絶
縁性に優れたポリオレフィンが多く用いられてきている
。最近の趨勢として原子力発電所用電線・ケーブル、車
両用電線・ケーブル、船舶用電線・ケーブルに垂直トレ
イ燃焼試験レベルの高度の難燃性が要望されるようにな
ってきた。Polyolefins, which have excellent electrical insulation properties, are often used as insulation materials and sheath materials for electric wires and cables. A recent trend is that electric wires and cables for nuclear power plants, electric wires and cables for vehicles, and electric wires and cables for ships are required to have a high degree of flame retardancy at the level of the vertical tray combustion test.
ポリオレフィンを難燃化する方法としてはハロゲン含有
化合物等を混和する方法が一般に採用されてきている。As a method of making polyolefin flame retardant, a method of incorporating a halogen-containing compound or the like has generally been adopted.
しかし、これらは燃焼時多量の煙を発生し、機器への腐
食性、人体への有害性等が問題になっている。特に、最
近は安全面からこの様なハロゲン系ガスを発生しないこ
とが要望されるようになってきている。However, these produce a large amount of smoke when burned, causing problems such as corrosivity to equipment and toxicity to the human body. In particular, recently there has been a demand for not generating such halogen-based gases from the standpoint of safety.
この様な情勢を踏まえ、発煙性、有毒性の非常に少ない
無機系難燃剤が注目されるようになってきた。In light of this situation, inorganic flame retardants with extremely low smoke generation and toxicity are attracting attention.
しかしながら、無機系難燃剤は難燃効果が小さいため、
単にポリマに混和しただけでは燃焼時に溶融滴下すると
いうドリップ現象がみられ、高度の難燃性を付与するこ
とは難しい。なお、高度の難燃性を付与するためには無
機系難燃剤を多量加えることも有効であるが、得られる
絶縁体やシースの引張特性の低下を招いたり、押出加工
性が低下するという問題がある。However, since inorganic flame retardants have a small flame retardant effect,
If it is simply mixed into a polymer, a drip phenomenon occurs in which it melts and drips during combustion, making it difficult to impart a high degree of flame retardancy. Although it is effective to add a large amount of inorganic flame retardant to impart a high degree of flame retardancy, it causes problems such as deterioration of the tensile properties of the resulting insulator and sheath and deterioration of extrusion processability. There is.
本発明は上記に基いてなされたものであり、従来の問題
点を解消し、燃焼時にドリップを防止でき、難燃性を大
幅に向上し、垂直トレイ燃焼試験レベルに合格する高度
の難燃性を付与できると共に、有毒なハロゲン系ガスを
発生しない難燃性電気絶縁組成物の提供を目的とするも
のである。The present invention has been made based on the above, and solves the conventional problems, can prevent drips during combustion, greatly improves flame retardance, and has a high degree of flame retardancy that passes the vertical tray combustion test level. The object of the present invention is to provide a flame-retardant electrical insulating composition that can impart the following properties and does not generate toxic halogen-based gases.
〔課題を解決するための手段及び作用）本発明の上記目
的はポリオレフィン１００重量部に対して、無機系難燃
剤を５０〜３００重量部およびニオブ又は無機ニオブ化
合物あるいは有機ニオブ化合物を０．５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によって達
成される。[Means and effects for solving the problems] The above object of the present invention is to add 50 to 300 parts by weight of an inorganic flame retardant and 0.5 parts by weight of niobium or an inorganic niobium compound or an organic niobium compound to 100 parts by weight of polyolefin. This is achieved by a flame-retardant electrical insulating composition characterized in that it contains at least 50% of the flame retardant composition.
本発明において、ポリオレフィンとしては、エチレンプ
ロピレンコポリマ、エチレンプロビレコンジェンターポ
リマ、ポリエチレン、エチレン酢酸ビニルコポリマ、エ
チレンエチルアクリレートコポリマ、エチレンブテンコ
ポリマ、エチレンブテンジェンターポリマといったもの
があげられ、これらは単独使用または２種以上の併用が
可能である。In the present invention, examples of the polyolefin include ethylene propylene copolymer, ethylene propylene congenter polymer, polyethylene, ethylene vinyl acetate copolymer, ethylene ethyl acrylate copolymer, ethylene butene copolymer, and ethylene butene congenter polymer, which may be used alone or in combination. It is possible to use more than one species in combination.
本発明において無機系難燃剤としては、水酸化アルミニ
ウム、水酸化マグネシウム、塩基性炭酸マグネシウム、
水酸化カルシウム、ハイドロタルサイト類等があげられ
る。無機系難燃剤の含有量は、ポリオレフィン１００重
量部に対して５０〜３００重量部の範囲とする必要があ
り、５０重量部未満では目的とする難燃性を付与できず
、３００重量部を越えると加工性が著しく低下して押出
成形が困難になる。In the present invention, inorganic flame retardants include aluminum hydroxide, magnesium hydroxide, basic magnesium carbonate,
Examples include calcium hydroxide and hydrotalcites. The content of the inorganic flame retardant must be in the 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 retardancy cannot be imparted, and if it exceeds 300 parts by weight. The processability deteriorates significantly and extrusion molding becomes difficult.
本発明においては、無機系難燃剤に加えてニオブ又は無
機ニオブ化合物あるいは有機ニオブ化合物を併用するこ
とにより、燃焼時のドリップを防止でき、ＩＩ燃性を大
幅に向上できることが見出された。In the present invention, it has been found that by using niobium, an inorganic niobium compound, or an organic niobium compound in addition to an inorganic flame retardant, drip during combustion can be prevented and II flammability can be significantly improved.
無機ニオブ化合物として、二酸化ニオブ、三酸化ニオブ
、五酸化ニオブ、ニオブ酸リチウム、ニオブ酸ナトリウ
ム、硼化ニオブ、珪化ニオブ等がある。Inorganic niobium compounds include niobium dioxide, niobium trioxide, niobium pentoxide, lithium niobate, sodium niobate, niobium boride, niobium silicide, and the like.
有機ニオブ化合物としては、ペンタメトキシニオブ、ペ
ンタエトキシニオブ、ペンタ−１−プロポキシニオブ、
ペンクーｎ−ブトキシニオブ等がある。Examples of organic niobium compounds include pentamethoxyniobium, pentaethoxyniobium, penta-1-propoxyniobium,
Examples include Penku n-butoxyniobium.
これら、ニオブ、無機ニオブ化合物、有機ニオブ化合物
はポリオレフィン１００重量部に対して０．５重量部以
上配合する必要があり、０．５重量部未満では燃焼時の
ドリップを防止できず、難燃性が不充分となる。These niobium, inorganic niobium compounds, and organic niobium compounds need to be blended in an amount of 0.5 parts by weight or more per 100 parts by weight of the polyolefin, and if it is less than 0.5 parts by weight, dripping during combustion cannot be prevented and flame retardant becomes insufficient.
本発明においては、上記成分に加えて架橋剤、酸化防止
剤、滑剤、軟化剤、分散剤等を適宜添加してもよい。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ビル）べ、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
、硫黄、エチレンジメタアクリレート、ジアリルフタレ
ート、ｐ−キノンジオキンム等を併用してもよい。また
、電子線等の電離性放射線による架橋の場合は、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を添加する
のが一般的である。酸化防止剤としでは、フェニル−α
−ナフチルアミン、Ｎ。In the present invention, in addition to the above components, crosslinking agents, antioxidants, lubricants, softeners, dispersants, etc. may be added as appropriate. As a crosslinking agent, dicumyl peroxide, 3-bis(t
Organic peroxides represented by (butylperoxyisopropyl)benzene are suitable, and sulfur, ethylene dimethacrylate, diallyl phthalate, p-quinonedioquine, etc. may be used in combination with this as a crosslinking aid. . Further, in the case of crosslinking using ionizing radiation such as an electron beam, it is common to add a reactive monomer such as trimethylolpropane trimellitate or triallyl isocyanurate as a crosslinking aid. As an antioxidant, phenyl-α
- Naphthylamine, N.
Ｎ −ジ−β−ナフチル−ｐ−フェニレンジアミン等の
アミン系酸化防止剤、２．６−ジーＬ−ブチル−４−メ
チルフェノール、ヒンダードフェノール等のフェノール
系酸化防止剤があげられる。Examples include amine antioxidants such as N-di-β-naphthyl-p-phenylenediamine, and phenolic antioxidants such as 2,6-di-L-butyl-4-methylphenol and hindered phenol.
本発明の実施例について説明する。但し、本発明は本実
施例にのみ限られるものではない。Examples of the present invention will be described. However, the present invention is not limited to this example.
第１表に示すような配合にしたがって各種成分を１００
″Ｃに保持された６インチロールに投入してロール混練
を行い、混練後１２０ ’Ｃに保持された４０ｍ／ｍ押
出１１（Ｌ／Ｄ＝２５）を用い、外径５．３鵬の絶縁線
心を３本撚合せた゛外周に２．０閣の厚さで押出被覆し
た。なお、実施例−１，４゜５および比較例−１につい
ては押出被覆に続いて１３ｋｇ／ｃｄの水蒸気雰囲気中
に３分間保持して架橋した。100% of various ingredients according to the formulation shown in Table 1.
After kneading, a 40m/m extrusion 11 (L/D=25) held at 120'C was used to insulate the insulation with an outer diameter of 5.3mm. The outer periphery of three wire cores twisted together was coated by extrusion to a thickness of 2.0 mm.For Examples-1 and 4゜5 and Comparative Example-1, the extrusion coating was followed by a steam atmosphere of 13 kg/cd. It was held in the solution for 3 minutes to effect crosslinking.
各個で作製した絶縁電線についての評価結果は第１表の
下欄に示した通りである。The evaluation results for the insulated wires produced individually are as shown in the lower column of Table 1.
なお、難燃性評価は次に基いて行った。長さ２ｍのケー
ブルを垂直に８本並べ、下から７万ＢＴＵの炎を２０分
間当て、自己消炎すれば合格であり、自己消炎せず全焼
するものは不合格である。In addition, flame retardancy evaluation was performed based on the following. Eight cables with a length of 2 m are lined up vertically and a 70,000 BTU flame is applied from below for 20 minutes. If the flame self-extinguishes, it passes; if it burns out without self-extinguishing, it fails.
第１表からも明らかな通り、本発明に係わる実施例−１
〜６ではいずれも難燃性に合格し、押出加工性に優れて
いる。これに対し無機系Ｈ燃剤の含有量が規定値以下の
比較例−１では難燃性が不合格であり、規定値以上の比
較例−２では押出性が悪く成形不可能であった。また、
ニオブや無機ニオブ化合物あるいは有機ニオブ化合物の
含有量が０．５重量部以上という規定値以下の比較例−
３，４，５ではドリップが生じて難燃性が不合格となる
。As is clear from Table 1, Example-1 according to the present invention
- 6, all passed the flame retardant test and were excellent in extrusion processability. On the other hand, in Comparative Example 1 in which the content of the inorganic H flame agent was below the specified value, the flame retardance was rejected, and in Comparative Example 2, in which the content of the inorganic H flame agent was above the specified value, extrudability was poor and molding was impossible. Also,
Comparative example where the content of niobium, inorganic niobium compounds, or organic niobium compounds is below the specified value of 0.5 parts by weight or more -
In samples 3, 4, and 5, dripping occurred and the flame retardancy was rejected.
以上説明してきた通り、本発明はポリオレフィン１００
重量部に対して無機系難燃剤５０〜３００重量部、およ
びニオブ又は無機ニオブ化合物あるいは有機ニオブ化合
物を０．５重量部以上含有することを特徴とする難燃性
電気絶縁組成物により、良好な押出加工性を維持しなが
ら、燃焼時のドリップを防止でき、高度の難燃性を付与
でき、しかも燃焼時に有毒なハロゲン系ガスを発生しな
いようになる。As explained above, the present invention uses polyolefin 100
A flame-retardant electrical insulating composition containing 50 to 300 parts by weight of an inorganic flame retardant and 0.5 parts by weight or more of niobium, an inorganic niobium compound, or an organic niobium compound can provide good performance. While maintaining extrusion processability, dripping during combustion can be prevented, a high degree of flame retardancy can be imparted, and toxic halogen-based gases are not generated during combustion.
Claims (1)
燃剤５０〜３００重量部およびニオブ又は無機ニオブ化
合物あるいは有機ニオブ化合物を０．５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。(1) A flame-retardant electrical insulation composition containing 50 to 300 parts by weight of an inorganic flame retardant and 0.5 parts by weight or more of niobium, an inorganic niobium compound, or an organic niobium compound per 100 parts by weight of polyolefin. thing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2470188A JPH01200512A (en) | 1988-02-04 | 1988-02-04 | Fire-resistant electric insulation composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2470188A JPH01200512A (en) | 1988-02-04 | 1988-02-04 | Fire-resistant electric insulation composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01200512A true JPH01200512A (en) | 1989-08-11 |
Family
ID=12145481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2470188A Pending JPH01200512A (en) | 1988-02-04 | 1988-02-04 | Fire-resistant electric insulation composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01200512A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100959170B1 (en) * | 2008-02-26 | 2010-05-24 | 한국광기술원 | Fabrication method of self-oscillating multi-region DVF laser diode with integrated metal thin film heater |
-
1988
- 1988-02-04 JP JP2470188A patent/JPH01200512A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100959170B1 (en) * | 2008-02-26 | 2010-05-24 | 한국광기술원 | Fabrication method of self-oscillating multi-region DVF laser diode with integrated metal thin film heater |
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