JPS63291938A - Flame-retardant electrical insulating composition - Google Patents
Flame-retardant electrical insulating compositionInfo
- Publication number
- JPS63291938A JPS63291938A JP12879987A JP12879987A JPS63291938A JP S63291938 A JPS63291938 A JP S63291938A JP 12879987 A JP12879987 A JP 12879987A JP 12879987 A JP12879987 A JP 12879987A JP S63291938 A JPS63291938 A JP S63291938A
- Authority
- JP
- Japan
- Prior art keywords
- ethylene
- weight
- parts
- bromine
- 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 12
- 239000003063 flame retardant Substances 0.000 title claims description 14
- 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 description 13
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920001577 copolymer Polymers 0.000 claims abstract description 12
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims abstract description 11
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052794 bromium Inorganic materials 0.000 claims abstract description 11
- 150000001491 aromatic compounds Chemical class 0.000 claims abstract description 8
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000005977 Ethylene Substances 0.000 claims abstract description 6
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims abstract description 4
- 125000004185 ester group Chemical group 0.000 claims abstract description 4
- 238000010292 electrical insulation Methods 0.000 claims description 3
- 238000004132 cross linking Methods 0.000 abstract description 12
- YHMYGUUIMTVXNW-UHFFFAOYSA-N 1,3-dihydrobenzimidazole-2-thione Chemical compound C1=CC=C2NC(S)=NC2=C1 YHMYGUUIMTVXNW-UHFFFAOYSA-N 0.000 abstract description 4
- -1 dicumyl peroxide) Chemical class 0.000 abstract description 3
- 150000001451 organic peroxides Chemical class 0.000 abstract description 3
- 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 abstract description 2
- WHHGLZMJPXIBIX-UHFFFAOYSA-N decabromodiphenyl ether Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br WHHGLZMJPXIBIX-UHFFFAOYSA-N 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- OWYWGLHRNBIFJP-UHFFFAOYSA-N Ipazine Chemical compound CCN(CC)C1=NC(Cl)=NC(NC(C)C)=N1 OWYWGLHRNBIFJP-UHFFFAOYSA-N 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- NDRKXFLZSRHAJE-UHFFFAOYSA-N 1,2,3,4,5-pentabromo-6-(2,3,4-tribromophenyl)benzene Chemical group BrC1=C(Br)C(Br)=CC=C1C1=C(Br)C(Br)=C(Br)C(Br)=C1Br NDRKXFLZSRHAJE-UHFFFAOYSA-N 0.000 description 1
- OZHJEQVYCBTHJT-UHFFFAOYSA-N 1,2,3,4,5-pentabromo-6-methylbenzene Chemical compound CC1=C(Br)C(Br)=C(Br)C(Br)=C1Br OZHJEQVYCBTHJT-UHFFFAOYSA-N 0.000 description 1
- 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
- JFGVTUJBHHZRAB-UHFFFAOYSA-N 2,6-Di-tert-butyl-1,4-benzenediol Chemical compound CC(C)(C)C1=CC(O)=CC(C(C)(C)C)=C1O JFGVTUJBHHZRAB-UHFFFAOYSA-N 0.000 description 1
- VFBJXXJYHWLXRM-UHFFFAOYSA-N 2-[2-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]ethylsulfanyl]ethyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCCSCCOC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 VFBJXXJYHWLXRM-UHFFFAOYSA-N 0.000 description 1
- ZVVFVKJZNVSANF-UHFFFAOYSA-N 6-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]hexyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCCCCCCOC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 ZVVFVKJZNVSANF-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- QEZIKGQWAWNWIR-UHFFFAOYSA-N antimony(3+) antimony(5+) oxygen(2-) Chemical compound [O--].[O--].[O--].[O--].[Sb+3].[Sb+5] QEZIKGQWAWNWIR-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000694 effects Effects 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
- 238000010438 heat treatment Methods 0.000 description 1
- PYGSKMBEVAICCR-UHFFFAOYSA-N hexa-1,5-diene Chemical group C=CCCC=C PYGSKMBEVAICCR-UHFFFAOYSA-N 0.000 description 1
- CAYGQBVSOZLICD-UHFFFAOYSA-N hexabromobenzene Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1Br CAYGQBVSOZLICD-UHFFFAOYSA-N 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 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
- 239000000615 nonconductor Substances 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は、電線・ケーブルの絶縁材料への適用に好適な
難燃性電気絶縁組成物、特に、高度の難燃性、耐熱性お
よび強靭性を備えた難燃性電気絶縁組成物に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a flame-retardant electrical insulating composition suitable for application as an insulating material for electric wires and cables, particularly a highly flame-retardant, heat-resistant and tough composition. The present invention relates to a flame-retardant electrical insulating composition with properties.
［従来の技術］
電線・ケーブルの絶縁材料としては、電気絶縁性に優れ
たエチレン−プロピレンコポリマが多く用いられてきて
いる。このような状況の中で、最近、モータ等の日出線
にはＵＬ規格ｖｗ−ｉレベルの難燃性を有し、１２０℃
以上の耐熱性および強靭性が要求されるようになってき
た。[Prior Art] Ethylene-propylene copolymers, which have excellent electrical insulation properties, have been widely used as insulating materials for electric wires and cables. Under these circumstances, recently, motors, etc. of the Hiji Line have flame retardant properties that meet the UL standard VW-I level, and can be heated up to 120°C.
The above heat resistance and toughness are now required.
エチレン−プロピレンコポリマを難燃化するには、臭素
含有化合物と二酸化アンチモンを添加する方法が一般に
知られている。In order to make ethylene-propylene copolymers flame retardant, it is generally known to add a bromine-containing compound and antimony dioxide.
［発明が解決しようとする問題点］
ＵＬ規格ＶＷ−ルベルの高度の難燃性を付与するには、
臭素含有化合物および三酸化アンチモンといった難燃剤
、難燃助剤を多量に添加する必要があるが、これによっ
て耐熱性や強靭性の低下を招くという問題が生ずる。[Problems to be solved by the invention] In order to provide the high degree of flame retardancy of UL standard VW-Lebel,
It is necessary to add large amounts of flame retardants and flame retardant aids such as bromine-containing compounds and antimony trioxide, but this causes a problem of deterioration of heat resistance and toughness.
本発明は、上記に基づいてなされたもので、ＵＬ規格Ｖ
Ｗ−ルベルの高度の難燃性を有すると共に、優れた耐熱
性および強靭性を有する絶縁材料が得られる難燃性電気
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 is based on the UL standard V
The object of the present invention is to provide a flame-retardant electrical insulating composition that provides an insulating material that has a high degree of flame retardancy of W-Lebel and also has excellent heat resistance and toughness.
［問題点を解決するための手段］
本発明の難燃性電気絶縁組成物は、エチレン含有量が７
０モル％以上のエチレン−プロピレンコポリマ１００重
量部に対して、臭素含有量５０重量％以上の芳香族化合
物を臭素量にして１０〜４０重量部、三酸化アンチモン
を５〜３０重量部、エステル基またはカルボニル基を含
むヒンダートフェノールを０．２〜５重量部および２−
メルカプトベンズイミダソールを３〜３０重量部含有す
ることを特徴とするものである。[Means for solving the problems] The flame retardant electrical insulation composition of the present invention has an ethylene content of 7.
For 100 parts by weight of an ethylene-propylene copolymer containing 0 mol% or more, 10 to 40 parts by weight of an aromatic compound having a bromine content of 50% by weight or more, 5 to 30 parts by weight of antimony trioxide, and an ester group. or 0.2 to 5 parts by weight of hindered phenol containing a carbonyl group and 2-
It is characterized by containing 3 to 30 parts by weight of mercaptobenzimidazole.
本発明においては、エチレン含有量が７０モル％、好ま
しくは７０〜８５モル％のエチレン−プロピレンコポリ
マを使用することにより、引張り特性等の強靭性が改善
される。さらに、適宜他のポリマ、例えばポリエチレン
、エチレン酢酸ビニルコポリ、エチレンエチルアクリレ
ートコポリマ、エチレンブレンコポリマ、塩素化ポリエ
チレン等を併用することも可能である。In the present invention, toughness such as tensile properties is improved by using an ethylene-propylene copolymer having an ethylene content of 70 mol%, preferably 70 to 85 mol%. Furthermore, it is also possible to use other polymers, such as polyethylene, ethylene vinyl acetate copolymer, ethylene ethyl acrylate copolymer, ethylene blene copolymer, chlorinated polyethylene, etc., as appropriate.
難燃剤としては、臭素含有量５０重量％以上の芳香族化
合物を使用する必要があり、臭素含有量が５０重量％未
満のものでは多量に配合する必要があることから、機械
的特性が低下することになる。このような芳香族化合物
としては、デカブロモジフェニルエーテル、デカブロモ
ジフェニル、オクタブロモジフェニル、ヘキサブロモジ
フェニル、テトラブロモサリシールアニライド、ヘキサ
ブロモベンゼン、ペンタブロモトルエン等があげられる
。As a flame retardant, it is necessary to use an aromatic compound with a bromine content of 50% by weight or more, and if the bromine content is less than 50% by weight, it is necessary to incorporate a large amount, resulting in a decrease in mechanical properties. It turns out. Examples of such aromatic compounds include decabromodiphenyl ether, decabromodiphenyl, octabromodiphenyl, hexabromodiphenyl, tetrabromosalicylanilide, hexabromobenzene, pentabromotoluene, and the like.
芳香族化合物の配合量は、エチレン−プロピレンコポリ
マ１００重量部に対して１０〜４０重量部とする必要が
あり、１０重量部未満では目的とする難燃性を付与する
ことができず、４０重量部を越えると機械的特性の低下
を招く。The blending amount of the aromatic compound must be 10 to 40 parts by weight per 100 parts by weight of the ethylene-propylene copolymer; if it is less than 10 parts by weight, the desired flame retardance cannot be imparted; Exceeding 30% will result in a decrease in mechanical properties.
難燃助剤としての三酸化アンチモンの配合量もも、上記
と同様な理由から、エチレン−プロピレンコポリマ１０
０重量部に対して５〜３０重量部の範囲とする必要があ
る。For the same reason as above, the amount of antimony trioxide as a flame retardant aid was set at 10% in the ethylene-propylene copolymer.
It is necessary to range from 5 to 30 parts by weight relative to 0 parts by weight.
ヒンダートフェノールはエステル基またはカルボニル基
を含むものを使用するが、これは耐熱性を付与するため
である。The hindered phenol containing an ester group or carbonyl group is used in order to impart heat resistance.
ヒンダートフェノールおよび２−メルカプトベンズイミ
ダソールは、それぞれエチレン−プロピレンコポリマ１
００重量部に対して０．２〜５重量部および３〜３０重
１部の範囲で添加する必要があり、規定値未満では耐熱
性が不十分で、規定値を越えると機械的特性の低下や架
橋阻害を招くようになる。Hindered phenol and 2-mercaptobenzimidazole were each added to ethylene-propylene copolymer 1
It is necessary to add in the range of 0.2 to 5 parts by weight and 3 to 30 parts by weight per 00 parts by weight. If it is less than the specified value, the heat resistance will be insufficient, and if it exceeds the specified value, the mechanical properties will deteriorate. and crosslinking inhibition.
上記の各種成分を含む樹脂組成物は、所定形状に成形後
架橋することが好ましい。架橋方法としては有機過酸化
物の添加による加熱架橋、放射線の照射による照射架橋
等があげられる。加熱架橋の場合の有機過酸化物として
は、ジクミルパーオキサイド、１．３−ビス（オミブチ
ルーパーオキシーイソブロビル）ベンゼン等が適切であ
り、さら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−キノンジオキシム等
を併用してもよい。放射線の照射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を
添加するのが好ましい。The resin composition containing the various components described above is preferably crosslinked after being molded into a predetermined shape. Examples of the crosslinking method include heating crosslinking by adding an organic peroxide and irradiation crosslinking by irradiating with radiation. Suitable organic peroxides for thermal crosslinking include dicumyl peroxide, 1,3-bis(omibutylperoxyisobrobyl)benzene, and crosslinking aids such as sulfur, ethylene dimethacrylate, and diallyl. Phthalate, P-quinone dioxime, etc. may be used in combination. In the case of crosslinking by irradiation with radiation, it is preferable to add a reactive monomer such as trimethylolpropane trimellitate or triallyl isocyanurate as a crosslinking aid.
本発明においては、上記成分以外に必要に応じて安定剤
、充填剤、滑剤、軟化剤、分散剤等を添加してもよい。In the present invention, in addition to the above-mentioned components, stabilizers, fillers, lubricants, softeners, dispersants, etc. may be added as necessary.
安定剤としては、酸化亜鉛、酸化鉛、酸化マグネシウム
といったものがあげられ、充填剤としては、タルク、ク
レー、炭酸塩、カーボンブラック等があげられる。Stabilizers include zinc oxide, lead oxide, and magnesium oxide, and fillers include talc, clay, carbonate, carbon black, and the like.
［発明の実施例］
第１表の各側に示す配合に従い、各種成分を１２０℃に
保持された６インチロールに投入して均一に混練し、次
いで１２０℃に保持された４ ０ ｍ ｍ押出機（Ｌ／
’Ｄ＝２５）を用い、外径３．０ｍｍの銅導体上に１．
０ｍｍの厚さで押出し被覆し、続いて１３ｋｇ／ｃｍ’
の水蒸気中に３分間保持して架橋した。[Examples of the Invention] According to the formulations shown on each side of Table 1, various ingredients were put into a 6-inch roll held at 120°C and kneaded uniformly, and then extruded at 40 mm held at 120°C. Machine (L/
'D=25) on a copper conductor with an outer diameter of 3.0 mm.
Extrusion coating at 0 mm thickness followed by 13 kg/cm'
It was maintained in water vapor for 3 minutes for crosslinking.
各側の絶縁電線の評価結果は第１表の下欄に示す通りで
ある。なお、評価は次に基づいて行なった。The evaluation results for the insulated wires on each side are as shown in the lower column of Table 1. In addition, the evaluation was performed based on the following.
難燃性：垂直に保った電線をバーナで燃焼させ、バーナ
を取り去った後１分以内に消えれば合格であり、１分以
上燃えれば不合格である。また、ドリップにより下に敷
いである綿に燃え移っても不合格である。Flame retardancy: A wire held vertically is burned with a burner, and if it goes out within 1 minute after the burner is removed, it passes, and if it burns for more than 1 minute, it passes. In addition, if the dripping causes the flame to spread to the underlying cotton, it will not pass the test.
引張り特性：上記架橋後銅線を引き抜き、２０℃の恒温
室に１日放置した後、ショツパー型引張り試験機により
引張り速度５００ｍｍ／分で測定した。Tensile properties: After the above-mentioned crosslinking, the copper wire was pulled out, left in a constant temperature room at 20° C. for one day, and then measured using a Schopper type tensile tester at a tensile speed of 500 mm/min.
耐熱性：ＵＬ、Ｃ３Ａ規格の１２５°Ｃ定格を用い、１
５８℃の空気老化試験機中で７日間熱老化後の引張り強
さと伸びを測定し、それぞれの残率を求めた。Heat resistance: 125°C rating according to UL and C3A standards,
The tensile strength and elongation after heat aging for 7 days were measured in an air aging tester at 58° C., and the respective retention rates were determined.
＊３ ヘキサメチレングリコールビス［β−（３，５−
ジ−ｔ−ブチル−４−ヒドロキシフェノール）プロピオ
ネ−トコ（イルガノックス２５９、チバガイギー社製品
）
＊４ ２，２’ −チオ［ジエチル−ビス−３（３，５
−ジ−ｔ−ブチル−４−ヒドロキシフェノール）プロピ
オネート１（イルガノックス１０３５、チバガイギー社
製品）
＊、５ ４．４’ −メチレン−ビス（２，６−ジーｔ
−ブチルフェノール）第１表から、本発明の範囲にある
実施例１〜６では、難燃試験に合格し、引張り特性はエ
チレンプロピレンゴムの電気用品規格を十分満足し、耐
熱性も良好である。芳香族化合物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、本発明で規定す
る範囲外のヒンダートフェノールを使用した比較例２で
は耐熱性が不十分であり、エチレン含有量が本発明で規
定する範囲外のエチレンプロピレンコポリマを使用した
比較例３では引張り強さが低（、耐熱性も不十分である
。*3 Hexamethylene glycol bis[β-(3,5-
di-t-butyl-4-hydroxyphenol) propionate (Irganox 259, Ciba Geigy product) *4 2,2'-thio[diethyl-bis-3(3,5
-di-t-butyl-4-hydroxyphenol) propionate 1 (Irganox 1035, Ciba Geigy product) *, 5 4.4'-methylene-bis(2,6-di-t
-butylphenol) From Table 1, Examples 1 to 6 within the scope of the present invention passed the flame retardant test, had tensile properties that fully satisfied the electrical appliance standards for ethylene propylene rubber, and had good heat resistance. Comparative Example 1, in which the aromatic compound content was below the specified value, failed in flame retardancy, and Comparative Example 2, in which hindered phenol was used outside the range specified by the present invention, had insufficient heat resistance. Comparative Example 3, which used an ethylene propylene copolymer with an ethylene content outside the range specified by the present invention, had low tensile strength (and insufficient heat resistance).
［発明の効果］
以上説明してきた通り、本発明によればＵＬ規格ＶＷ−
１に合格する高度の難燃性を有し、しかも優れた耐熱性
および引張り特性（強靭性）を有する電気絶縁物を得ら
れるようになる。[Effect of the invention] As explained above, according to the present invention, UL standard VW-
It becomes possible to obtain an electrical insulator that has a high degree of flame retardancy that passes grade 1, as well as excellent heat resistance and tensile properties (toughness).
Claims (1)
ロピレンコポリマ１００重量部に対して、臭素含有量５
０重量％以上の芳香族化合物を臭素量にして１０〜４０
重量部、三酸化アンチモンを５〜３０重量部、エステル
基またはカルボニル基を含むヒンダートフェノールを０
．２〜５重量部および２−メルカプトベンズイミダソー
ルを３〜３０重量部含有することを特徴とする難燃性電
気絶縁組成物(1) Bromine content is 5 parts by weight per 100 parts by weight of an ethylene-propylene copolymer with an ethylene content of 70 mol% or more.
0% by weight or more of aromatic compounds as bromine content 10-40
Parts by weight, 5 to 30 parts by weight of antimony trioxide, 0 parts of hindered phenol containing an ester group or carbonyl group.
．． A flame-retardant electrical insulation composition characterized by containing 2 to 5 parts by weight and 3 to 30 parts by weight of 2-mercaptobenzimidasole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12879987A JPS63291938A (en) | 1987-05-25 | 1987-05-25 | Flame-retardant electrical insulating composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12879987A JPS63291938A (en) | 1987-05-25 | 1987-05-25 | Flame-retardant electrical insulating composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63291938A true JPS63291938A (en) | 1988-11-29 |
Family
ID=14993721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12879987A Pending JPS63291938A (en) | 1987-05-25 | 1987-05-25 | Flame-retardant electrical insulating composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63291938A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01101348A (en) * | 1987-10-14 | 1989-04-19 | Mitsubishi Cable Ind Ltd | Heat-resistant and flame-retardant composition |
| JP2002012711A (en) * | 2000-06-30 | 2002-01-15 | Sumitomo Wiring Syst Ltd | Olefinic elastomer composition |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5580449A (en) * | 1978-12-01 | 1980-06-17 | Gen Electric | Polyolefin compound with improved thermosetting stability* improving heat aging property* and conductor insulated by using same |
-
1987
- 1987-05-25 JP JP12879987A patent/JPS63291938A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5580449A (en) * | 1978-12-01 | 1980-06-17 | Gen Electric | Polyolefin compound with improved thermosetting stability* improving heat aging property* and conductor insulated by using same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01101348A (en) * | 1987-10-14 | 1989-04-19 | Mitsubishi Cable Ind Ltd | Heat-resistant and flame-retardant composition |
| JP2002012711A (en) * | 2000-06-30 | 2002-01-15 | Sumitomo Wiring Syst Ltd | Olefinic elastomer composition |
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