JP3175355B2 - Heat-shrinkable tube made of resin composition - Google Patents

Heat-shrinkable tube made of resin composition

Info

Publication number
JP3175355B2
JP3175355B2 JP31793592A JP31793592A JP3175355B2 JP 3175355 B2 JP3175355 B2 JP 3175355B2 JP 31793592 A JP31793592 A JP 31793592A JP 31793592 A JP31793592 A JP 31793592A JP 3175355 B2 JP3175355 B2 JP 3175355B2
Authority
JP
Japan
Prior art keywords
heat
polyester
tube
weight
resin composition
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.)
Expired - Fee Related
Application number
JP31793592A
Other languages
Japanese (ja)
Other versions
JPH06145483A (en
Inventor
安世 松本
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP31793592A priority Critical patent/JP3175355B2/en
Publication of JPH06145483A publication Critical patent/JPH06145483A/en
Application granted granted Critical
Publication of JP3175355B2 publication Critical patent/JP3175355B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Processes Of Treating Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Organic Insulating Materials (AREA)

Description

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

【0001】[0001]

【産業上の利用分野】本発明は、電線、ケーブル接続部
分等の絶縁・防水保護チューブ等や電子部品の保護など
に利用される熱収縮チューブの構成材の改良に関する
ものである。特に、本発明は、ポリエステルとの相溶性
に優れたEAを含む、耐熱性、耐熱老化性、難燃性、加
工性の良好な樹脂組成物よりなる熱収縮チューブの構成
材の改良に関するものである。
The present invention relates to a wire, it is utilized such as the insulating and waterproof protective tube or the like and protect the electronic components such as a cable connection portion, to an improvement of the structure material of the heat shrinkable tube. In particular, the present invention includes an EA with excellent compatibility with the polyester, heat resistance, heat aging resistance, relates to an improvement of flame retardancy, processability becomes better resin composition of the heat shrinkable tube construction material is there.

【0002】[0002]

【従来の技術及び課題】熱収縮チューブは、電線、ケー
ブル接続部分の絶縁・防水保護などに利用されている。
このような用途には、従来、ポリエチレン、ポリ塩化ビ
ニル樹脂などの汎用樹脂が一般に使用されている。近
年、高温、耐油性の要求される分野での使用が増加して
おり、熱収縮チューブの材質もポリエステル、フッ素樹
脂などが使用されるようになってきたが、フッ素樹脂チ
ューブは高価である。
2. Description of the Related Art Heat-shrinkable tubes are used for insulation and waterproof protection of electric wire and cable connection parts.
Conventionally, general-purpose resins such as polyethylene and polyvinyl chloride resins are generally used for such applications. In recent years, use in fields requiring high temperature and oil resistance has been increasing, and polyester, fluororesin, and the like have been used as materials for heat-shrinkable tubes, but fluororesin tubes are expensive.

【0003】ポリエステルチューブは耐薬品性、耐熱性
を兼ね備えているが、耐熱性が十分でなくかつ硬くて、
例えば特公昭62−34055号公報に見られるポリエ
ステルにオレフィン系ポリマーをブレンドすることが提
案されている。そして、該公報には、該オレフィン系ポ
リマーとしては、具体的にエチレン−酢酸ビニル共重合
体(以下、EVAと略称する)またはエチレン−アクリ
ル酸メチル−カルボキシル基を有するモノマー3元系共
重合体(以下、3元系EAと略称する)が記載されてい
る。このように、ポリエステルにEVAをブレンドした
系が知られているが、該EVAは熱分解により酢酸が離
脱し、耐熱性に優れているとは必ずしもいえず、耐熱性
の要求される用途での利用は困難である。
[0003] Polyester tubes have both chemical resistance and heat resistance, but have insufficient heat resistance and are hard.
For example, it has been proposed to blend an olefin polymer with a polyester as disclosed in JP-B-62-34055. According to the publication, as the olefin-based polymer, specifically, an ethylene-vinyl acetate copolymer (hereinafter abbreviated as EVA) or a monomer ternary copolymer having an ethylene-methyl acrylate-carboxyl group (Hereinafter abbreviated as ternary EA). As described above, a system in which EVA is blended with polyester is known. However, EVA is not necessarily excellent in heat resistance because acetic acid is released by thermal decomposition, and is not necessarily excellent in heat resistance. Use is difficult.

【0004】また、ポリエステルにハロゲン系難燃剤を
配合して燃焼させた場合に、樹脂の垂れ落ちの傾向が認
められ、難燃性も十分ではない。一方、上記公報に示さ
れるように、ポリエステルに3元系EAをブレンドした
場合には、燃焼時の垂れ落ちはないものの、樹脂系中に
カルボキシル基を有するために、熱老化において硬化劣
化し易くなり、加工性も悪化してチューブを押出成形し
た場合にその表面が荒れる。
[0004] Further, when a halogen-based flame retardant is blended with polyester and burned, the resin tends to sag, and the flame retardancy is not sufficient. On the other hand, as shown in the above publication, when ternary EA is blended with polyester, although there is no sagging at the time of burning, the resin system has a carboxyl group, so that it is easily cured and deteriorated by heat aging. When the tube is extruded, the surface is roughened.

【0005】[0005]

【課題を解決するための手段】本発明者は、上記種々の
課題について検討した結果、ポリエステルはポリエチレ
ンのような非極性のポリマーとは混ざり合い難く使用で
きなく、またポリエステルと相溶性のよい高酢酸ビニル
含有量のEVAは耐熱老化性が悪い点に注目し、親水性
ポリマーを対象に、ポリエステルとの相溶性に優れてい
るポリマーを種々検討した結果、耐熱性、耐油性、加工
性等を兼ね備えたEAが良いことを見い出し、本発明を
完成するに至った。即ち,本発明は: (A) 下記式(1) で示される、2種の繰り返し単位から
なるポリエステルと、(B) アクリル酸メチル含有量が
40重量%以上のエチレン−アクリル酸メチル2元系共
重合体(以下、EAと略称する)から少なくとも構成さ
れ、かつポリエステル(A) 100重量部に対してEA
(B) が10〜100重量部配合されている樹脂組成物
りなるチューブが架橋されてなる熱収縮チューブである
ことを特徴とする、熱収縮チューブである。
As a result of studying the above various problems, the present inventors have found that polyester is difficult to mix with non-polar polymers such as polyethylene and cannot be used. Focusing on the fact that EVA with a vinyl acetate content has poor heat aging resistance, various polymers with excellent compatibility with polyester were studied for hydrophilic polymers, and as a result, heat resistance, oil resistance, workability, etc. They have found that the combined EA is good, and have completed the present invention. That is, the present invention provides: (A) a polyester comprising two kinds of repeating units represented by the following formula (1); and (B) an ethylene-methyl acrylate binary system having a methyl acrylate content of 40% by weight or more. A copolymer (hereinafter abbreviated as EA), and EA based on 100 parts by weight of polyester (A)
Resin composition (B) is 10 to 100 parts by weight of formulation
Heat-shrinkable tubing
It is a heat-shrinkable tube characterized by the above-mentioned.

【化2】 (ただし、nは6〜40である)Embedded image (However, n is 6 to 40)

【0006】以下、本発明を詳細に説明する。本発明に
おいて、(A) のポリエステルとは、下記式(1) で示され
る、2種の繰り返し単位から構成されるポリエステルで
ある。
Hereinafter, the present invention will be described in detail. In the present invention, the polyester (A) is a polyester composed of two types of repeating units represented by the following formula (1).

【化3】 (ただし、nは6〜40である)Embedded image (However, n is 6 to 40)

【0007】本発明に用いる(A) のポリエステルは、
(B) のEAと任意の割合で配合できるが、耐油性、燃焼
時の垂れ落ち防止の点からは、ポリエステル100重量
部当たりEAが10〜100重量部、より好ましくは3
0〜80重量部の範囲にあることが望ましい。また、
(A) のポリエステルは、EAとのブレンドの容易性、加
工性などを考慮すると、ビカット軟化点(ASTM−1
525)が150℃以下、より好ましくは60〜130
℃であることが望ましい。ポリエステルとEAとの相溶
性が良くないと、老化特性も悪化する。 (A) のポリエステルは、一般的には、上記(1) で示され
る構造を持ち、その中主鎖にエステル結合を有する繰り
返し単位aと主鎖にエステル結合とエーテル結合とを有
する繰り返し単位bからなる(ab)n 型のマルチブロ
ック共重合体の構造を呈する。
The polyester (A) used in the present invention is:
It can be blended with the EA of (B) in an arbitrary ratio, but from the viewpoint of oil resistance and prevention of dripping during burning, the EA is preferably 10 to 100 parts by weight, more preferably 3 to 100 parts by weight, per 100 parts by weight of the polyester.
It is desirably in the range of 0 to 80 parts by weight. Also,
The polyester of (A) has a Vicat softening point (ASTM-1) in consideration of easiness of blending with EA and processability.
525) is 150 ° C. or lower, more preferably 60 to 130.
C. is desirable. If the compatibility between polyester and EA is not good, the aging characteristics are also deteriorated. The polyester (A) generally has a structure represented by the above (1), in which a repeating unit a having an ester bond in the main chain and a repeating unit b having an ester bond and an ether bond in the main chain. (Ab) having the structure of an n- type multi-block copolymer.

【0008】(A) のポリエステルを製造するには、上記
繰り返し単位aと繰り返し単位bとを所望の割合でマル
チブロック共重合化できればよく、ポリエステルの製造
に用いられる公知の原料モノマーを、常法に従って(エ
ステル交換法、エステル化法、重縮合法など)重縮合触
媒の存在下で処理することにより得ることができる。
In order to produce the polyester (A), it is sufficient that the above-mentioned repeating unit (a) and repeating unit (b) can be multi-block copolymerized at a desired ratio. (Transesterification, esterification, polycondensation, etc.) in the presence of a polycondensation catalyst.

【0009】(B) のアクリル酸メチル(以下、MAと略
称する)含有量が40重量%以上のエチレン−アクリル
酸メチル2元系共重合体(EA)とは、エチレンモノマ
ーとアクリル酸メチルとから本質的に構成され、かつM
A含有量が40重量%以上の2元系共重合体である。即
ち、本発明に用いる(B) のEAは、MA含有量40重量
%以上、より好ましくは50重量%以上を有する、少な
くともエチレンモノマーとMAモノマーとを基本構成単
位とする2元系共重合体である。
The ethylene-methyl acrylate binary copolymer (EA) having a content of methyl acrylate (hereinafter abbreviated as MA) of 40% by weight or more of (B) is a copolymer of ethylene monomer and methyl acrylate. Consisting essentially of and M
It is a binary copolymer having an A content of 40% by weight or more. That is, the EA of (B) used in the present invention has a MA content of 40% by weight or more, more preferably 50% by weight or more, and is a binary copolymer having at least an ethylene monomer and a MA monomer as basic constitutional units. It is.

【0010】さらに、(B) のEAには、エチレンモノマ
ーとMAモノマー以外に、EAの基本的性格を損なわな
い限り、他のエチレン性不飽和モノマー、例えばプロピ
レン、ブテン、ペンテン、ヘキセンなどやアクリル酸、
メタクリル酸、メタクリル酸メチルなど少量を共重合さ
せたものも含むものである。
The EA of (B) includes, in addition to the ethylene monomer and the MA monomer, other ethylenically unsaturated monomers such as propylene, butene, pentene, hexene and acryl as long as the basic properties of the EA are not impaired. acid,
It also includes those obtained by copolymerizing a small amount such as methacrylic acid and methyl methacrylate.

【0011】(B) のEA中のMAモノマーの含有量が4
0重量%未満と少ない場合には、ポリエステルと容易に
相溶し難く、耐熱老化性の改善効果や燃焼時の垂れ落ち
防止が不十分となる。従って、(B)のEA中のMAモ
ノマーの含有量は40重量%以上とする
The content of the MA monomer in the EA of (B) is 4
If the amount is less than 0% by weight, it is difficult to be easily compatible with the polyester, and the effect of improving the heat aging resistance and the prevention of dripping during combustion become insufficient. Accordingly, the content of MA monomer in EA (B) in a 40% by weight or more.

【0012】また、本発明の樹脂組成物に難燃性を付与
するために、ハロゲン含有難燃剤が10以上50重量部
以下含まれていることが好ましい。該ハロゲン含有難燃
剤としては、例えばテトラブロモブタン、パークロロペ
ンタシクロデカン、テトラブロモビスフェノールA、塩
素化パラフィン、デカブロモジフェニルエーテルなどを
挙げることができる。
[0012] In order to impart flame retardancy to the resin composition of the present invention, it is preferable that the resin composition contains 10 to 50 parts by weight of a halogen-containing flame retardant. Examples of the halogen-containing flame retardant include tetrabromobutane, perchloropentacyclodecane, tetrabromobisphenol A, chlorinated paraffin, decabromodiphenyl ether and the like.

【0013】さらに、本発明の樹脂組成物には、通常の
配合剤、例えば三酸化アンチモンなどの難燃助剤;アル
ミニウム又はマグネシウム水和物、タルク、シリカ、炭
酸カルシウム、炭酸マグネシウムなどの充填剤;多官能
性モノマー;酸化防止剤、光安定剤;加工助剤、カーボ
ンブラック、顔料などを配合することができる。
Further, the resin composition of the present invention may contain a usual compounding agent, for example, a flame retardant aid such as antimony trioxide; a filler such as aluminum or magnesium hydrate, talc, silica, calcium carbonate, magnesium carbonate and the like. Polyfunctional monomers; antioxidants, light stabilizers; processing aids, carbon black, pigments, and the like.

【0014】本発明の樹脂組成物は、(A) と(B) とを含
むベース樹脂に必要に応じて各種配合剤を混練等の手段
により配合させてペレットなどの成形粉に加工して後、
所望の成形手段によりチューブを経て熱収縮性チューブ
にする。具体的には、本発明の樹脂組成物は、押出被覆
や押出成などの手段によチューブ経て熱収縮チュー
する。本発明で得られたチューブは、耐熱性、機械
的強度などを向上させ、熱収縮チューブとするために、
その後公知の電離性放射線(電子線など)の照射により
架橋する。この場合、架橋促進剤としてトリメチロール
プロパントリメリテート、トリアリルシアヌレート、ト
リアリルイソシアヌレート等の多官能性モノマーを好適
には予かじめ添加するとよい。また、上記架橋には、電
離性放射線照射の他に、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)ベンゼンな
どの有機過酸化物の配合後の熱架橋も可能である。
The resin composition of the present invention is prepared by compounding various compounding agents, if necessary, with a base resin containing (A) and (B) by kneading or the like, and processing into a molding powder such as pellets. ,
The heat-shrinkable tube is formed through the tube by a desired molding means. Specifically, the resin composition of the present invention is a heat shrinkable tube through by Ri tube means such as extrusion coating or extrusion forming shape. Tube obtained in the present invention, heat resistance, to improve the mechanical strength, in order to heat-shrinkable tube,
Thereafter, crosslinking is performed by irradiation with a known ionizing radiation (such as an electron beam). In this case, a polyfunctional monomer such as trimethylolpropane trimellitate, triallyl cyanurate or triallyl isocyanurate is preferably added in advance as a crosslinking accelerator. In addition, in addition to ionizing radiation irradiation, dicumyl peroxide, 3-
Thermal crosslinking after blending an organic peroxide such as bis (t-butylperoxyisopropyl) benzene is also possible.

【0015】該チューブを例えば電離性放射線を照射す
ることにより架橋後、加熱条件下でチューブの内部に圧
縮空気を送り込む等の方法により拡径して冷却固定する
方法で、熱収縮チューブとする。ここで、熱収縮チュー
ブとは、架橋結合により予め形状を記憶させたチューブ
形状物を、該チューブ形状物の融点以上に加熱し、チュ
ーブ形状物を拡大し急冷することにより得られるもので
ある。このようにして作製した熱収縮チューブを融点以
上に加熱することにより、予め記憶させたチューブ形状
物に復元するものである。また、銅などの導体からなる
単芯或いは複数本の絶縁電線の多芯撚り絶縁電線の外周
に、本発明の樹脂組成物を押出被覆などの成形手段によ
り被覆し、更に電離性放射線を照射し架橋して、チュー
ブ形状物で被覆された絶縁ケーブルとすることもでき
る。
[0015] After crosslinking by irradiation of the tube such as ionizing radiation, and expanded by a method such as feeding the compressed air into the tube by a method of cooling fixed under heating, and heat shrink tubing. Here, the heat-shrinkable tube is obtained by heating a tube-shaped object whose shape has been previously memorized by cross-linking above the melting point of the tube-shaped object, expanding the tube-shaped object and rapidly cooling it. By heating the heat-shrinkable tube thus manufactured to a temperature equal to or higher than the melting point, the heat-shrinkable tube is restored to a tube shape stored in advance. Further, the outer periphery of a single-core or multi-core stranded insulated wire of a plurality of insulated wires made of a conductor such as copper is coated with the resin composition of the present invention by molding means such as extrusion coating, and further irradiated with ionizing radiation. Cross-linked, chew
It can also be an insulated cable covered with a wire- shaped object .

【0016】[0016]

【実施例】本発明を下記の実施例により説明するが、こ
れらは本発明の範囲を制限するものではない。 (実施例1〜3及び比較例1〜5) 実施例、比較例において、下記表1に示される配合比で
組成物を6インチロールにて混練し後、プレスで1mm
厚みのシートを作成し、電子線加速器で18Mrad照
射した。その結果を表1に示す。
The present invention is illustrated by the following examples, which do not limit the scope of the invention. (Examples 1 to 3 and Comparative Examples 1 to 5) In Examples and Comparative Examples, the compositions were kneaded by a 6-inch roll at a compounding ratio shown in Table 1 below, and then pressed by 1 mm.
A sheet having a thickness was prepared, and irradiated with 18 Mrad using an electron beam accelerator. Table 1 shows the results.

【0017】[0017]

【表1】 [Table 1]

【0018】 注) ポリエステル1:ペルプレンP−40H(商品名、東洋紡(株)製)、 〔DSC融点172℃、ビカット軟化点120℃〕 ポリエステル2:ペルプレンS−2001(商品名、東洋紡(株)製)、 〔DSC融点208℃、ビカット軟化点188℃〕 EA1 :ベイマックD(商品名、三井・デ ポン ポリケミカル(株 )、エチレン−アクリル酸メチル共重合体〔アクリル酸メチ ル含量=50重量%、MI=7.2〕 EA2 :ベイマックDLS(商品名、三井・デ ポン ポリケミカル (株)、エチレン−アクリル酸メチル共重合体〔アクリル酸 メチル含量=60重量%、MI=6.9〕 EA3 :DE5624(Borealis製)、エチレン−アクリル 酸メチル共重合体〔アクリル酸メチル含量=25重量%、 MI=4〕 3元EA :ペイマックG(商品名、三井・デ ポン ポリケミカル(株 )製)、〔アクリル酸メチル含量=59重量%、 MI=7.4〕 難燃剤 :(デカブロモジフェニルエーテル);アンフラームFSB− 183(商品名、日本油脂製) 老化防止剤 :(アミン系老化防止剤);ノンフレックスRD(商品名、精 工化学製) ただし、MI値は190℃、荷重2.16kgf下でA
STM D−1238により測定した。 老化後の伸び:180℃、7日後の伸びであり、100
%以上は〇で他は×である。 耐油試験後の伸び:50℃、1日後の抗張力、伸び残率
が70%以上は〇である。 燃焼時の垂れ落ち:UL94垂直燃焼試験において、〇;垂れ落ち無し ×;垂れ落ち有り
Note) Polyester 1: Perprene P-40H (trade name, manufactured by Toyobo Co., Ltd.) [DSC melting point: 172 ° C., Vicat softening point: 120 ° C.] Polyester 2: Perprene S-2001 (trade name, Toyobo Co., Ltd.) Ltd.), [DSC melting point 208 ° C., a Vicat softening point 188 ° C.] EA1: Beimakku D (trade name, Mitsui de Yu Pont poly Chemical Co., ethylene - methyl acrylate copolymer [acrylic acid methylation content = 50 wt%, MI = 7.2] EA2: Beimakku DLS (trade name, Mitsui de Yu Pont poly Chemical Co., ethylene - methyl acrylate copolymer [methyl acrylate content = 60 wt%, MI = 6. 9] EA3: DE5624 (Borealis), ethylene -methyl acrylate copolymer [methyl acrylate content = 25% by weight, M I = 4] 3-way EA: Peimakku G (trade name, manufactured by Mitsui De Yu Pont Poly Chemical Co.), [methyl acrylate content = 59 wt%, MI = 7.4] flame retardant :( decabromodiphenyl ether ); Anfram FSB- 183 (trade name, manufactured by NOF CORPORATION) Antioxidant : (amine-based anti-aging agent); Nonflex RD (trade name, manufactured by Seiko Chemical Co. ) However, MI value is 190 ° C., load 2.16 kgf. A below
It was measured by STM D-1238. Elongation after aging: 180 ° C., elongation after 7 days, 100
% Or more is Δ and others are ×. Elongation after oil resistance test: 50 ° C., tensile strength after 1 day, residual elongation rate of 70% or more is Δ. Dripping during combustion: In the UL94 vertical burning test, Δ: No dripping ×: Dripping

【0019】(実施例4及び比較例6) 下記表2に示された配合に基いて、内径3mm、外径4
mmのチューブを押出機で作製した。実施例4のチュー
ブは表面が滑らかであったが、比較例6ノチューブは表
面が荒れ凹凸があった。実施例4で作製したチューブを
電子線で20Mrad照射した後、170℃で内径を2
倍に膨らませ急冷し、熱収縮チューブを得た。
Example 4 and Comparative Example 6 Based on the composition shown in Table 2 below, the inner diameter was 3 mm and the outer diameter was 4
mm tubes were made on an extruder. The tube of Example 4 had a smooth surface, whereas the tube of Comparative Example 6 had a rough surface and had irregularities. After irradiating the tube prepared in Example 4 with an electron beam for 20 Mrad, the inside diameter was 2 at 170 ° C.
It was expanded twice and quenched to obtain a heat-shrinkable tube.

【0020】[0020]

【表2】 注) 老化防止剤 :(アミン系老化防止剤);ノンフレックスRD(商品名、精 工化学製) 架橋助剤 :トリアリルシアヌレート[Table 2] Note) Anti-aging agent: (amine-based anti-aging agent) ; Non-flex RD (trade name, manufactured by Seiko Chemical Co., Ltd. ) Crosslinking aid: triallyl cyanurate

【0021】[0021]

【発明の効果】本発明においては、ポリエステルの耐薬
品性などの特性を失うことなく、耐熱老化性を改善し、
燃焼時の垂れ落ちがなく、押出加工性に優れた樹脂組成
よりなる熱収縮性チューブであって、電線、ケーブル
の絶縁保護用チューブなどの利用に適している。
According to the present invention, heat aging resistance is improved without losing properties such as chemical resistance of polyester.
A heat-shrinkable tube made of a resin composition that does not sag during combustion and has excellent extrudability, and is suitable for use as an insulation protection tube for electric wires and cables.

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 (A) 下記式(1) で示される、2種の繰
り返し単位からなるポリエステルと、(B) アクリル酸
メチル含有量が40重量%以上のエチレン−アクリル酸
メチル2元系共重合体(以下、EAと略称する)から少
なくとも構成され、かつポリエステル(A) 100重量部
に対してEA(B) が10〜100重量部配合されている
樹脂組成物よりなるチューブが架橋されてなる熱収縮チ
ューブであることを特徴とする、熱収縮チューブ。 【化1】 (ただし、nは6〜40である)
(1) A polyester comprising two types of repeating units represented by the following formula (1) and (B) an ethylene-methyl acrylate binary system having a methyl acrylate content of 40% by weight or more: A tube made of a resin composition which is at least composed of a polymer (hereinafter abbreviated as EA), and in which 10 to 100 parts by weight of EA (B) is blended with respect to 100 parts by weight of polyester (A), is crosslinked. Heat shrink
A heat-shrinkable tube characterized by being a tube . Embedded image (However, n is 6 to 40)
JP31793592A 1992-11-04 1992-11-04 Heat-shrinkable tube made of resin composition Expired - Fee Related JP3175355B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31793592A JP3175355B2 (en) 1992-11-04 1992-11-04 Heat-shrinkable tube made of resin composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31793592A JP3175355B2 (en) 1992-11-04 1992-11-04 Heat-shrinkable tube made of resin composition

Publications (2)

Publication Number Publication Date
JPH06145483A JPH06145483A (en) 1994-05-24
JP3175355B2 true JP3175355B2 (en) 2001-06-11

Family

ID=18093668

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31793592A Expired - Fee Related JP3175355B2 (en) 1992-11-04 1992-11-04 Heat-shrinkable tube made of resin composition

Country Status (1)

Country Link
JP (1) JP3175355B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6780325B1 (en) 1998-11-18 2004-08-24 Eisai Co., Ltd. Diffusion promoting apparatus for low flow velocity gradient high-speed liquid chromatography

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5849846A (en) * 1994-07-25 1998-12-15 Advanced Cardiovascular Systems, Inc. Balloons for medical catheters
US5554120A (en) * 1994-07-25 1996-09-10 Advanced Cardiovascular Systems, Inc. Polymer blends for use in making medical devices including catheters and balloons for dilatation catheters
WO1999030334A1 (en) * 1997-12-08 1999-06-17 Acome Societe Cooperative De Travailleurs Self-adjusting cables and method for making same
JP2004518797A (en) * 2001-01-16 2004-06-24 イーストマン ケミカル カンパニー Colorant concentrate for polyester
JP2007519802A (en) * 2004-12-29 2007-07-19 エルジー・ケム・リミテッド Flame retardant glycol modified polyethylene terephthalate film
JP5529551B2 (en) * 2009-10-06 2014-06-25 住友電気工業株式会社 Insulation tube and heat shrink tube
JP5556183B2 (en) * 2009-10-06 2014-07-23 住友電気工業株式会社 Flame retardant resin composition and insulated wire, flat cable, molded product using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6780325B1 (en) 1998-11-18 2004-08-24 Eisai Co., Ltd. Diffusion promoting apparatus for low flow velocity gradient high-speed liquid chromatography

Also Published As

Publication number Publication date
JPH06145483A (en) 1994-05-24

Similar Documents

Publication Publication Date Title
JP5387944B2 (en) Halogen-free flame retardant insulated wire
JPH0322416B2 (en)
JP5182580B2 (en) Halogen-free flame retardant insulated wire
KR101837498B1 (en) Halogen-Free Flame Retarding Resin Composition Having Improved Leading-in and Insulated Electric Wire Using the same
JPH0554723A (en) Flame retardant electric insulating composition and flame retardant wire & cable
JP3175355B2 (en) Heat-shrinkable tube made of resin composition
JP3358228B2 (en) Resin composition and insulated wire and insulated tube therefrom
JP4379947B2 (en) Flame-retardant resin composition and its insulated wires, tubes, heat-shrinkable tubes, flat cables, and high-voltage wires for direct current
JP3246004B2 (en) Halogen-free flame retardant composition and tube
JP3275453B2 (en) Heat-resistant flame-retardant oil-resistant resin composition and insulated wire and heat-shrinkable tube therefrom
KR100203442B1 (en) Resin compositions with flame resistance and low-smoking
JP3383924B2 (en) Flame retardant polyester elastomer composition and molded article therefrom
WO2019186784A1 (en) Flame-retardant resin composition, flame-retardant heat shrink tube, and flame-retardant insulated electrical wire
JP2005268036A (en) Non halogen flame retardant electric wire / cable
JP2006244894A (en) Nonhalogen flame-retardant electric wire and cable
JP2000336215A (en) Crosslinkable, frame-retarded resin composition
JP2000290438A (en) Nonhalogen flame retardant resin composition and flame retardant electric wire and cable using the same
JP3953694B2 (en) Insulated wire / cable
JP4070006B2 (en) Fluorine-containing elastomer composition
JP3193017B2 (en) Non-halogen flame-retardant resin composition
JP2003160702A (en) Flame-retardant resin composition and insulated electric wire using the same
JP3812064B2 (en) Fluorine-containing elastomer composition
JP7252171B2 (en) Resin composition, coated wire and wire harness
JP3321990B2 (en) Extruded fluororesin
WO2023149557A1 (en) Resin composition, covered wire and wiring harness

Legal Events

Date Code Title Description
FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090406

Year of fee payment: 8

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090406

Year of fee payment: 8

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100406

Year of fee payment: 9

LAPS Cancellation because of no payment of annual fees