JP2002332384A - Heat-resistant flame-retardant resin composition - Google Patents

Heat-resistant flame-retardant resin composition

Info

Publication number
JP2002332384A
JP2002332384A JP2001140031A JP2001140031A JP2002332384A JP 2002332384 A JP2002332384 A JP 2002332384A JP 2001140031 A JP2001140031 A JP 2001140031A JP 2001140031 A JP2001140031 A JP 2001140031A JP 2002332384 A JP2002332384 A JP 2002332384A
Authority
JP
Japan
Prior art keywords
weight
parts
resin composition
heat
pts
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.)
Withdrawn
Application number
JP2001140031A
Other languages
Japanese (ja)
Inventor
Katsuyoshi Ishida
克義 石田
Atsushi Suzuki
淳 鈴木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujikura Ltd
Original Assignee
Fujikura Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujikura Ltd filed Critical Fujikura Ltd
Priority to JP2001140031A priority Critical patent/JP2002332384A/en
Publication of JP2002332384A publication Critical patent/JP2002332384A/en
Withdrawn legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To obtain a resin composition having excellent heat resistance and flame retardancy, not forming any noxious gas when burnt, and having good mechanical properties, and to provide a wire using the composition as the covering material. SOLUTION: The problem in the above burning can be solved by using a resin composition prepared by compounding 100 pts.wt. base polymer comprising 30-60 pts.wt. polyethylene and 40-70 pts.wt. ethylene/vinyl acetate copolymer and/or ethylene/ethyl acrylate copolymer with 60-120 pts.wt. metal hydrate, 1-5 pts.wt. tin compound, and at most 5 pts.wt. red phosphorus and crosslinking the resulting compound.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】この発明は、電機制御盤など
の配線盤内の配線などに好適な耐熱性が良好な電線とこ
の電線の被覆材をなす耐熱難燃性樹脂組成物に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wire having good heat resistance and suitable for wiring in a wiring board such as an electric control panel, and a heat-resistant and flame-retardant resin composition forming a covering material of the electric wire.

【0002】[0002]

【従来の技術】制御盤内は、リレーなどの種々の制御機
器からの発熱により、高温の雰囲気になっている。この
ため、配線盤内の電気配線には、耐熱電線が従来より用
いられている。この耐熱電線には、臭素系難燃剤が配合
された架橋ポリエチレンからなる絶縁体を有し、耐熱性
と難燃性とを併せて有するものが使用されている。
2. Description of the Related Art The inside of a control panel has a high temperature atmosphere due to heat generated by various control devices such as relays. For this reason, heat-resistant electric wires have been conventionally used for electric wiring in a wiring board. The heat-resistant electric wire has an insulator made of crosslinked polyethylene mixed with a brominated flame retardant, and has both heat resistance and flame retardancy.

【0003】しかしながら、このような耐熱電線にあっ
ては、火災時や焼却処分を行う際に、絶縁体をなす被覆
材から臭素を含む有害ガスが発生し、環境汚染を引き起
こす恐れがある。このため、被覆材として、ポリエチレ
ンなどのポリオレフィンポリマーに水酸化マグネシウム
などの金属水和物を多量に配合し、これを過酸化物架橋
したものなどが提案されているが、このものではポリオ
レフィンポリマーと金属水和物との相溶性が乏しいた
め、引張強度、伸びなどの機械的特性が大幅に低下する
欠点があった。
However, in such heat-resistant electric wires, when a fire or incineration is performed, a harmful gas containing bromine is generated from a covering material forming an insulator, which may cause environmental pollution. Therefore, as a coating material, a metal hydrate such as magnesium hydroxide is blended in a large amount with a polyolefin polymer such as polyethylene, and a peroxide cross-linked material has been proposed. Due to poor compatibility with metal hydrates, there was a drawback that mechanical properties such as tensile strength and elongation were significantly reduced.

【0004】[0004]

【発明が解決しようとする課題】よって、本発明におけ
る課題は、耐熱性、難燃性に優れ、燃焼時に有害ガスを
発生することが無く、機械的特性も良好な樹脂組成物お
よびこの樹脂組成物を被覆材とした電線を得ることにあ
る。
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a resin composition which is excellent in heat resistance and flame retardancy, does not generate harmful gas upon combustion, and has good mechanical properties, and this resin composition. An object of the present invention is to obtain an electric wire using an object as a covering material.

【0005】[0005]

【課題を解決するための手段】かかる課題は、ポリエチ
レン30〜60重量部とエチレン−酢酸ビニル共重合体
および/またはエチレン−エチルアクリレート共重合体
40〜70重量部とからなるベースポリマー100重量
部に対して、金属水和物60〜120重量部、スズ化合
物1〜5重量部、赤リン5重量部以下を配合し、架橋し
てなる樹脂組成物で解決できる。
The object of the present invention is to provide a base polymer comprising 30 to 60 parts by weight of polyethylene and 40 to 70 parts by weight of an ethylene-vinyl acetate copolymer and / or an ethylene-ethyl acrylate copolymer. In contrast, a resin composition obtained by blending 60 to 120 parts by weight of a metal hydrate, 1 to 5 parts by weight of a tin compound, and 5 parts by weight or less of red phosphorus can be solved.

【0006】[0006]

【発明の実施の形態】本発明の耐熱難燃性樹脂組成物を
なすベースポリマーには、ポリエチレン30〜60重量
部、好ましくは40〜50重量部と、エチレン−酢酸ビ
ニル共重合体および/またはエチレン−エチルアクリレ
ート共重合体40〜70重量部、好ましくは50〜60
重量部とからなるブレンドポリマーが用いられる。
BEST MODE FOR CARRYING OUT THE INVENTION The base polymer constituting the heat-resistant and flame-retardant resin composition of the present invention comprises 30 to 60 parts by weight, preferably 40 to 50 parts by weight of polyethylene, and ethylene-vinyl acetate copolymer and / or 40 to 70 parts by weight of ethylene-ethyl acrylate copolymer, preferably 50 to 60 parts
A blend polymer consisting of parts by weight is used.

【0007】ポリエチレンとしては、密度0.915〜
0.925g/cm3、メルトフローレイト(温度19
0℃、荷重2kg、時間10分 以下、同様の条件であ
る。)1〜10の低密度ポリエチレン、 密度0.91
8〜0.940g/cm3、メルトフローレイト2〜2
0の直鎖状低密度ポリエチレンなどが用いられ、耐熱性
の点では直鎖状低密度ポリエチレンが好ましい。
As polyethylene, the density is 0.915 to
0.925 g / cm 3 , melt flow rate (temperature 19
The same conditions are applied at 0 ° C., a load of 2 kg, and a time of 10 minutes or less. ) 1-10 low density polyethylene, density 0.91
8 to 0.940 g / cm 3 , melt flow rate 2-2
A linear low-density polyethylene of 0 is used, and a linear low-density polyethylene is preferable in terms of heat resistance.

【0008】また、エチレン−酢酸ビニル共重合体とし
ては、酢酸ビニル含量10〜40重量%、メルトフロー
レイト0.1〜5のものが好ましい。また、エチレン−
エチルアクリレート共重合体としては、エチルアクリレ
ート含量5〜30重量%、メルトフローレイト0.1〜
5のものが好ましい。
The ethylene-vinyl acetate copolymer preferably has a vinyl acetate content of 10 to 40% by weight and a melt flow rate of 0.1 to 5. Also, ethylene-
As the ethyl acrylate copolymer, an ethyl acrylate content of 5 to 30% by weight, a melt flow rate of 0.1 to
Five are preferred.

【0009】エチレン−酢酸ビニル共重合体とエチレン
−エチルアクリレート共重合体とを併用する場合の両者
の混合比は特に限定されないが、酢酸ビニルとエチルア
クリレートとの合計量がベースポリマー全量に対して4
0〜70重量%となるようにすることが、金属水和物と
の親和性の点で好ましい。ベースポリマーにおけるポリ
エチレンの量が、30重量部未満では組成物の機械的強
度が不足し、60重量部を越えると金属水和物との相溶
性が不足する。
When the ethylene-vinyl acetate copolymer and the ethylene-ethyl acrylate copolymer are used in combination, the mixing ratio of both is not particularly limited, but the total amount of vinyl acetate and ethyl acrylate is based on the total amount of the base polymer. 4
It is preferable that the amount be 0 to 70% by weight in view of affinity with the metal hydrate. If the amount of polyethylene in the base polymer is less than 30 parts by weight, the mechanical strength of the composition will be insufficient, and if it exceeds 60 parts by weight, the compatibility with the metal hydrate will be insufficient.

【0010】難燃剤として、金属水和物が用いられる。
金属水和物には、水酸化マグネシウム、水酸化アルミニ
ウム、水酸化カルシウムなどが用いられ、なかでも水酸
化マグネシウムが難燃効果が高く、望ましい。また、表
面積が5m2/g以上の細粒のものが樹脂組成物の溶融
粘度の増加が抑えられて好ましい。また、ベースポリマ
ーとの相溶性、親和性を高めるため、チタネートカップ
リング剤、シランカップリング剤、ステアリン酸などの
高級脂肪酸などを用いて表面処理を施したものを用いる
ことがさらに好ましい。
A metal hydrate is used as a flame retardant.
As the metal hydrate, magnesium hydroxide, aluminum hydroxide, calcium hydroxide, or the like is used. Among them, magnesium hydroxide is preferable because of its high flame retardant effect. Fine particles having a surface area of 5 m 2 / g or more are preferable because the increase in melt viscosity of the resin composition is suppressed. Further, in order to increase the compatibility and affinity with the base polymer, it is more preferable to use a material subjected to a surface treatment using a titanate coupling agent, a silane coupling agent, a higher fatty acid such as stearic acid, or the like.

【0011】金属水和物の配合量は、ベースポリマー1
00重量部に対して60〜120重量部、好ましくは8
0〜100重量部とされる。60重量部未満では難燃性
が不足し、120重量部を越えると樹脂組成物の機械的
特性が低下する。
The amount of the metal hydrate is based on the amount of the base polymer 1
60 to 120 parts by weight, preferably 8 to 100 parts by weight
0 to 100 parts by weight. If the amount is less than 60 parts by weight, the flame retardancy is insufficient, and if it exceeds 120 parts by weight, the mechanical properties of the resin composition deteriorate.

【0012】また、難燃助剤として、スズ化合物と赤リ
ンがさらに配合される。これら難燃助剤にあっては、少
量の配合によって高い難燃性を付与し、これにより主た
る難燃剤の金属水和物の配合量を減少せしめ、樹脂組成
物の機械的特性の低下を最小限とし、しかも高いレベル
の難燃性が維持できるようにするものである。
Further, a tin compound and red phosphorus are further blended as a flame retardant aid. In these flame retardant aids, high flame retardancy is imparted by adding a small amount thereof, thereby reducing the amount of the metal hydrate of the main flame retardant and minimizing the deterioration of the mechanical properties of the resin composition. And a high level of flame retardancy can be maintained.

【0013】スズ化合物としては、具体的に酸化スズ、
水和スズ化合物などが用いられ、その配合量はベースポ
リマー100重量部に対して、1〜5重量部、好ましく
は2〜4重量部とされ、1重量部未満では難燃効果が得
られず、5重量部を越えると機械的特性の低下が大きく
なる。また、赤リンの配合量は、ベースポリマー100
重量部に対して5重量部以下、好ましくは0.2〜1重
量部とされ、5重量部を越えると機械的特性の低下が大
きくなる。
As the tin compound, specifically, tin oxide,
A hydrated tin compound or the like is used, and the compounding amount is 1 to 5 parts by weight, preferably 2 to 4 parts by weight with respect to 100 parts by weight of the base polymer. If less than 1 part by weight, the flame retardant effect cannot be obtained. If the amount exceeds 5 parts by weight, the mechanical properties are greatly reduced. Further, the compounding amount of red phosphorus is 100 base polymer.
It is 5 parts by weight or less, preferably 0.2 to 1 part by weight with respect to parts by weight.

【0014】また、本発明の耐熱難燃性樹脂組成物は、
架橋して使用されるため、架橋のための種々の添加剤が
これに配合される。架橋手段として、電子線架橋を採用
する場合には、必要に応じて架橋助剤として、トリアリ
ルイソシアヌレート、ビスマレイミド、アクリル酸金属
塩などの不飽和二重結合を有する化合物などの架橋助剤
が、ベースポリマー100重量部に対して、1〜3重量
部配合される。
Further, the heat-resistant and flame-retardant resin composition of the present invention comprises:
Since it is used after being crosslinked, various additives for crosslinking are blended therein. When employing electron beam crosslinking as a crosslinking means, as a crosslinking aid, if necessary, a crosslinking aid such as a compound having an unsaturated double bond such as triallyl isocyanurate, bismaleimide, or a metal acrylate. Is blended in an amount of 1 to 3 parts by weight based on 100 parts by weight of the base polymer.

【0015】また、過酸化物架橋を行うものでは、ジク
ミルパーオキサイドなどの有機過酸化物がベースポリマ
ー100重量部に対して0.5〜2重量部配合され、必
要に応じてこれに上述の架橋助剤が1〜3重量部配合さ
れる。さらに、シラン架橋を採用するものでは、ビニル
トリメトキシシランなどのビニルシラン化合物がベース
ポリマー100重量部に対して2〜5重量部、ジクミル
パーオキサイド、ベンゾイルパーオキサイドなどのラジ
カル重合開始剤が0.5〜2重量部配合される。また、
ビニルシランがポリエチレンにグラフト化されたシラン
グラフトポリエチレンを用いても良い。
In the case of peroxide crosslinking, an organic peroxide such as dicumyl peroxide is blended in an amount of 0.5 to 2 parts by weight based on 100 parts by weight of the base polymer. To 1 to 3 parts by weight of the crosslinking assistant. Further, in those employing silane crosslinking, 2 to 5 parts by weight of a vinyl silane compound such as vinyl trimethoxy silane is added to 100 parts by weight of the base polymer, and 0.1% of a radical polymerization initiator such as dicumyl peroxide or benzoyl peroxide is used. 5 to 2 parts by weight are blended. Also,
A silane-grafted polyethylene obtained by grafting vinyl silane to polyethylene may be used.

【0016】また、これ以外に、必要に応じてフェノー
ル系老化防止剤、アミド系老化防止剤、着色料、カーボ
ンブラックなどを適宜配合しても良い。
In addition to the above, a phenolic antioxidant, an amide antioxidant, a coloring agent, carbon black, and the like may be appropriately compounded as necessary.

【0017】本発明の耐熱難燃性樹脂組成物は、上述の
ように架橋されて使用される。具体的には、電子線架橋
を行うものでは、上記樹脂組成物を混練し、所望の形状
に成形したのち、これに10〜50メガラドの線量の電
子線を照射して架橋を行う。また、過酸化物架橋を行う
ものでは、混練、成形したのち成形物を温度120〜1
50℃で加熱して、架橋を行う。
The heat-resistant and flame-retardant resin composition of the present invention is used after being crosslinked as described above. Specifically, in the case of carrying out electron beam crosslinking, the above resin composition is kneaded and formed into a desired shape, and then irradiated with an electron beam at a dose of 10 to 50 megarads to carry out crosslinking. In the case of peroxide crosslinking, the molded product is kneaded and molded, and then the molded product is heated to a temperature of 120 to 1.
Crosslinking is carried out by heating at 50 ° C.

【0018】さらに、シラン架橋のものでは、上記樹脂
組成物を押出機等で加熱、混練してビニルシラン化合物
をベースポリマーにグラフトしてグラフトポリマーとな
し、これを成形して、この成形物を水、温水、加熱水蒸
気等の水分に、ジブチルスズマレエートなどの縮合触媒
の存在下、あるいは不存在下、接触させる方法が採られ
る。架橋手段のなかでは、シラン架橋が製造コストの点
で好ましい。このようにして架橋された成形物の樹脂分
のゲル分率は、30〜95%とされ、ゲル分率が30%
未満では耐熱性が不足する。
Further, in the case of silane cross-linking, the above resin composition is heated and kneaded with an extruder or the like to graft a vinyl silane compound to a base polymer to form a graft polymer. , Hot water, heated steam or the like, in the presence or absence of a condensation catalyst such as dibutyltin maleate. Among the crosslinking means, silane crosslinking is preferred in terms of production cost. The gel fraction of the resin of the molded product crosslinked in this way is 30 to 95%, and the gel fraction is 30%.
If it is less than this, heat resistance will be insufficient.

【0019】本発明の電線は、上述の耐熱難燃性樹脂組
成物からなり架橋された絶縁体、シースなどの被覆材を
有するもので、例えば、導体あるいは絶縁体上に上記樹
脂組成物を押出被覆し、ついでこれに電子線照射、加
熱、水分との接触を行って、架橋したものである。
The electric wire of the present invention comprises a covering material such as a crosslinked insulator or sheath made of the above-mentioned heat-resistant and flame-retardant resin composition. For example, the resin composition is extruded on a conductor or an insulator. It was coated and then cross-linked by irradiating with electron beam, heating and contacting with moisture.

【0020】本発明の耐熱難燃性樹脂組成物にあって
は、そのベースポリマーがこれを構成するエチレン−酢
酸ビニル共重合体あるいはエチレン−エチルアクリレー
ト共重合体に起因して適度の極性を有するため、難燃剤
の金属水和物との親和性、相溶性が良好となって、樹脂
組成物の引張強度、伸びなどの機械的特性の低下が防止
され、十分なレベルに保たれ、しかも良好な難燃性を示
すものとなる。
In the heat-resistant and flame-retardant resin composition of the present invention, the base polymer has an appropriate polarity due to the ethylene-vinyl acetate copolymer or ethylene-ethyl acrylate copolymer constituting the base polymer. Therefore, the affinity and compatibility of the flame retardant with the metal hydrate are improved, and the mechanical properties such as the tensile strength and the elongation of the resin composition are prevented from lowering. It shows high flame retardancy.

【0021】また、難燃助剤のスズ化合物、赤リンの配
合によって、所望の難燃性を保ちつつ金属水和物の配合
量を低減でき、これによっても樹脂組成物の機械的特性
の低下が抑えられる。また、この樹脂組成物から成形し
て得られる成形物は、成形されたのち、3種の架橋方法
のいずれかの方法によって架橋されているので、耐熱性
が高く、副次的に難燃性も高くなる。
The addition of the tin compound and red phosphorus as a flame retardant aid can reduce the amount of the metal hydrate while maintaining the desired flame retardancy, which also reduces the mechanical properties of the resin composition. Is suppressed. Further, since the molded product obtained by molding from this resin composition is molded and then cross-linked by any one of the three types of cross-linking methods, it has high heat resistance and has secondary flame retardancy. Will also be higher.

【0022】このため、本発明の電線は、JIS C
3005に規定する60度傾斜燃焼試験に合格する難燃
性を示し、同規格に規定する加熱変形試験(温度120
℃、荷重1kgf)における変形量が40%以下の耐熱
性を有する。また、引張強度10MPa以上、伸び20
0%以上の機械的特性を示す。さらに、ハロゲン元素を
含んでいないので、燃焼時に有害なハロゲン含有ガスを
発生することもない。さらに、電線とした際には被覆材
がやや硬いので、口出し性が良好でもある。
For this reason, the electric wire of the present invention is compliant with JIS C
It shows flame retardancy that passes the 60-degree inclined combustion test specified in 3005, and the heat deformation test (temperature 120
It has heat resistance of 40% or less in deformation under a load of 1 kgf). In addition, tensile strength of 10 MPa or more, elongation of 20
Shows mechanical properties of 0% or more. Furthermore, since it does not contain a halogen element, no harmful halogen-containing gas is generated during combustion. Further, when the wire is used, since the covering material is slightly hard, the leadability is also good.

【0023】以下具体例を示す。表1および表2に示す
配合組成(重量部)の樹脂組成物を用意し、これを混練
し、径1.8mmの導体上に押出被覆して、厚み0.8
mmの絶縁体を設け、このものを架橋筒において温度1
20℃で加熱、架橋して制御盤配線用絶縁電線とした。
絶縁体中の樹脂分のゲル分率は、すべての配合について
30〜95%の範囲内に収まるように架橋条件を制御し
た。この絶縁電線について、JIS C 3005に規
定する60度傾斜燃焼試験および加熱変形試験(温度1
20℃、荷重1kgf)を行った。
Specific examples are shown below. A resin composition having a compounding composition (parts by weight) shown in Tables 1 and 2 was prepared, kneaded, extruded on a conductor having a diameter of 1.8 mm, and formed into a thickness of 0.8.
mm insulator, which is placed at a temperature of 1
Heating and crosslinking at 20 ° C. resulted in an insulated wire for control panel wiring.
Crosslinking conditions were controlled so that the gel fraction of the resin in the insulator was within the range of 30 to 95% for all formulations. For this insulated wire, a 60-degree inclined combustion test and a heating deformation test (temperature 1
20 ° C. and a load of 1 kgf) were performed.

【0024】また、絶縁体について、引張強度と伸びを
測定した。結果を表1および表2に示す。表1および表
2において、「架橋用LDPE」は、市販のシラングラ
フトポリエチレンを、「EEA」は、エチルアクリレー
ト含有量25重量%、メルトフローレイト5のエチレン
−エチルアクリレート共重合体を表す。
Further, the tensile strength and elongation of the insulator were measured. The results are shown in Tables 1 and 2. In Tables 1 and 2, "LDPE for cross-linking" indicates a commercially available silane-grafted polyethylene, and "EEA" indicates an ethylene-ethyl acrylate copolymer having an ethyl acrylate content of 25% by weight and a melt flow rate of 5.

【0025】[0025]

【表1】 [Table 1]

【0026】[0026]

【表2】 [Table 2]

【0027】表1および表2の結果から、本発明の組成
のものでは、JIS C 3005に規定する60度傾
斜燃焼試験に合格し、加熱変形試験(温度120℃、荷
重1kgf)の加熱変形量が40%以下であり、引張強
度が10MPa以上で、伸びが200%以上であること
がわかる。
From the results shown in Tables 1 and 2, the composition of the present invention passed the 60-degree inclined combustion test specified in JIS C 3005, and the amount of heat deformation in the heat deformation test (temperature: 120 ° C., load: 1 kgf) Is 40% or less, the tensile strength is 10 MPa or more, and the elongation is 200% or more.

【0028】[0028]

【発明の効果】以上説明したように、本発明の耐熱難燃
性樹脂組成物にあっては、これを成形したのち架橋する
ことによって、高い難燃性、耐熱性、機械的特性を示
し、燃焼時に有害ガスを発生することもない。このた
め、この樹脂組成物からなる被覆材を有する電線にあっ
ては、電機制御盤等の高温雰囲気になる配線盤内の配線
等に好適なものとなる。
As described above, the heat-resistant and flame-retardant resin composition of the present invention exhibits high flame retardancy, heat resistance and mechanical properties by being molded and then crosslinked. No harmful gas is generated during combustion. For this reason, an electric wire having a covering material made of this resin composition is suitable for wiring in a wiring board in a high-temperature atmosphere such as an electric control panel.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) H01B 3/44 H01B 3/44 M P 7/295 7/34 B Fターム(参考) 4J002 BB03W BB04W BB06X BB07Y DA056 DE077 DE087 DE098 DE147 GQ01 5G305 AA02 AA14 AB15 AB25 AB35 BA15 BA22 CA01 CA04 CA07 CA51 CA54 CC01 CC02 CC03 CD13 5G315 CA03 CB02 CC08 CD02 CD04 CD13 CD14 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) H01B 3/44 H01B 3/44 MP 7/295 7/34 BF Term (Reference) 4J002 BB03W BB04W BB06X BB07Y DA056 DE077 DE087 DE098 DE147 GQ01 5G305 AA02 AA14 AB15 AB25 AB35 BA15 BA22 CA01 CA04 CA07 CA51 CA54 CC01 CC02 CC03 CD13 5G315 CA03 CB02 CC08 CD02 CD04 CD13 CD14

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】ポリエチレン30〜60重量部とエチレン
−酢酸ビニル共重合体および/またはエチレン−エチル
アクリレート共重合体40〜70重量部とからなるベー
スポリマー100重量部に対して、金属水和物60〜1
20重量部、スズ化合物1〜5重量部、赤リン5重量部
以下を配合し、架橋してなる耐熱難燃性樹脂組成物。
1. A metal hydrate based on 100 parts by weight of a base polymer comprising 30 to 60 parts by weight of polyethylene and 40 to 70 parts by weight of an ethylene-vinyl acetate copolymer and / or an ethylene-ethyl acrylate copolymer 60-1
A heat-resistant and flame-retardant resin composition obtained by blending 20 parts by weight, 1 to 5 parts by weight of a tin compound and 5 parts by weight or less of red phosphorus and crosslinking.
【請求項2】請求項1記載の耐熱難燃性樹脂組成物から
なる被覆材が設けられた電線。
2. An electric wire provided with a coating comprising the heat-resistant and flame-retardant resin composition according to claim 1.
JP2001140031A 2001-05-10 2001-05-10 Heat-resistant flame-retardant resin composition Withdrawn JP2002332384A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001140031A JP2002332384A (en) 2001-05-10 2001-05-10 Heat-resistant flame-retardant resin composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001140031A JP2002332384A (en) 2001-05-10 2001-05-10 Heat-resistant flame-retardant resin composition

Publications (1)

Publication Number Publication Date
JP2002332384A true JP2002332384A (en) 2002-11-22

Family

ID=18986708

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001140031A Withdrawn JP2002332384A (en) 2001-05-10 2001-05-10 Heat-resistant flame-retardant resin composition

Country Status (1)

Country Link
JP (1) JP2002332384A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040047697A (en) * 2002-11-29 2004-06-05 넥쌍 A flame-retardant cable
JP2005048080A (en) * 2003-07-29 2005-02-24 Fujikura Ltd Watertight resin composition and watertight insulated cable
US6995198B2 (en) 2002-11-19 2006-02-07 Fujikura Ltd. Flame retardant ethylene family resin composite and flame retardant electric wire or cable
KR100868133B1 (en) * 2007-04-06 2008-11-10 엘에스전선 주식회사 Resin composition for halogen free sheath and cable jacketing comprising the same
CN101265344B (en) * 2008-05-04 2011-04-06 江苏东南电缆有限公司 Flame-proof crosslinked polyethylene and preparation method thereof
JP2011233459A (en) * 2010-04-30 2011-11-17 Swcc Showa Cable Systems Co Ltd Insulated wire

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6995198B2 (en) 2002-11-19 2006-02-07 Fujikura Ltd. Flame retardant ethylene family resin composite and flame retardant electric wire or cable
US7244892B2 (en) 2002-11-19 2007-07-17 Fujikura, Ltd. Flame retardant ethylene family resin composite and flame retardant electric wire or cable
KR20040047697A (en) * 2002-11-29 2004-06-05 넥쌍 A flame-retardant cable
JP2005048080A (en) * 2003-07-29 2005-02-24 Fujikura Ltd Watertight resin composition and watertight insulated cable
KR100868133B1 (en) * 2007-04-06 2008-11-10 엘에스전선 주식회사 Resin composition for halogen free sheath and cable jacketing comprising the same
CN101265344B (en) * 2008-05-04 2011-04-06 江苏东南电缆有限公司 Flame-proof crosslinked polyethylene and preparation method thereof
JP2011233459A (en) * 2010-04-30 2011-11-17 Swcc Showa Cable Systems Co Ltd Insulated wire

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