JP2007321817A - Fluororesin tear-off tube - Google Patents

Fluororesin tear-off tube Download PDF

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JP2007321817A
JP2007321817A JP2006150405A JP2006150405A JP2007321817A JP 2007321817 A JP2007321817 A JP 2007321817A JP 2006150405 A JP2006150405 A JP 2006150405A JP 2006150405 A JP2006150405 A JP 2006150405A JP 2007321817 A JP2007321817 A JP 2007321817A
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fluororesin
tetrafluoroethylene
tube
tear
mixture
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JP4889007B2 (en
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Hiroko Domoto
裕子 堂本
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Junkosha Co Ltd
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Junkosha Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08L27/16—Homopolymers or copolymers or vinylidene fluoride
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/04—Macromolecular materials
    • A61L29/041—Macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/04—Macromolecular materials
    • A61L31/048—Macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08L27/18—Homopolymers or copolymers or tetrafluoroethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thermoplastic fluororesin tear-off tube. <P>SOLUTION: The fluororesin tear-off tube is formed of a fluororesin consisting of a plurality of different types thermoplastic fluororesin mixtures. The thermoplastic fluororesin mixtures form a mixture of one type of tetrafluoroethylene-hexafluoropropylene copolymer, tetrafluoroethylene-perfluoroalkylvinylether copolymer and polyvinylidenefluoride and tetrafluoroethylene-ethylene copolymer. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、フッ素樹脂製の引き裂きチューブに関するものであり、特にチューブの材質が熱可塑性フッ素樹脂からなる引き裂きチューブに関するものである。   The present invention relates to a tear tube made of a fluororesin, and more particularly to a tear tube whose material is a thermoplastic fluororesin.

引き裂きチューブは、各種物品の使用時までの保護部材として利用されている。なかでもフッ素樹脂製の引き裂きチューブは、フッ素樹脂が有する耐熱性、耐薬品性、撥水撥油性、非粘着性、自己潤滑性等の炭化水素系合成樹脂製の引き裂きチューブでは得られない特性を有している。   The tear tube is used as a protective member until the use of various articles. Among them, the tear tube made of fluororesin has characteristics that cannot be obtained with a tear tube made of hydrocarbon synthetic resin such as heat resistance, chemical resistance, water and oil repellency, non-adhesiveness, and self-lubricating properties of fluororesin. Have.

そこで、これらの特性を利用して、精密機器、電子部品等の保護用チューブ、あるいはカテーテル、ガイドワイヤー等を体内に導入するための医療機器導入用チューブ等として使用されている。
医療機器導入用チューブは、カテーテル等を体内に導入した後は不要であるばかりではなく、衛生状態を保持するための管理上の問題もあるのでカテーテルを体内に導入した後には、チューブを引き裂きながら引き抜くことが行われている。 Therefore, using these characteristics, they are used as tubes for protecting precision instruments, electronic parts and the like, or tubes for introducing medical equipment for introducing catheters, guide wires and the like into the body.
The medical device introduction tube is not only necessary after the catheter is introduced into the body, but there is also a management problem for maintaining hygiene. After introducing the catheter into the body, the tube is torn. It is being pulled out.

引き裂きチューブは、内部に装着された機器の保護を確実に行うことが可能であるとともに、特殊な器具を使用しなくても容易に引き裂き可能であるとともに、フッ素樹脂が有する特性を保持したものであることが求められている。
そこで、容易に引き裂きができるようにするために、テトラフルオロエチレン樹脂と低分子量のフッ素樹脂との混合物を押出し成形したフッ素樹脂製の押出チューブが提案されている（例えば、特許文献１）。
しかしながら、フッ素樹脂としてテトラフルオロエチレン樹脂を主要成分とするものであって、チューブへの成形はペースト状のフッ素樹脂を押出成形した後に、乾燥、焼成を行うものであって、製造には、多段の工程を必要とするものであった。
実開平６−７４１４８号公報 The tear tube can reliably protect the equipment installed inside, and can be easily torn without using special equipment, and retains the characteristics of fluororesin. There is a need to be.
Therefore, in order to facilitate tearing, a fluororesin extruded tube obtained by extruding a mixture of a tetrafluoroethylene resin and a low molecular weight fluororesin has been proposed (for example, Patent Document 1).
However, tetrafluoroethylene resin as a main component is used as a fluororesin, and the tube is formed by extruding a paste-like fluororesin and then drying and firing. This process was necessary.
Japanese Utility Model Publication No. 6-74148

本発明は、フッ素樹脂製の引き裂きチューブとして、容易に引き裂きが可能であるフッ素樹脂製の引き裂きチューブを提供することを課題とするものであり、また溶融押出成形のような一段の成形工程によって製造することが可能なフッ素樹脂製の引き裂きチューブを提供することを課題とするものである。   It is an object of the present invention to provide a fluororesin tear tube that can be easily torn as a fluororesin tear tube, and is manufactured by a single-stage molding process such as melt extrusion molding. An object of the present invention is to provide a tear tube made of a fluororesin that can be used.

本発明の課題は、フッ素樹脂製の引き裂きチューブにおいて、フッ素樹脂が種類の異なる複数の熱可塑性フッ素樹脂の混合物からなるフッ素樹脂製の引き裂きチューブによって製造したものであるフッ素樹脂製の引き裂きチューブによって解決することができる。
また、熱可塑性フッ素樹脂の混合物が、テトラフルオロエチレン−ヘキサフルオロプロピレン共重合体、テトラフルオロエチレン−パーフルオロアルキルビニルエーテル共重合体、ポリフッ化ビニリデンのいずれか１種とテトラフルオロエチレン−エチレン共重合体とを混合したものである前記のフッ素樹脂製の引き裂きチューブである。
また、熱可塑性フッ素樹脂の混合物が、テトラフルオロエチレン−ヘキサフルオロプロピレン共重合体とポリフッ化ビニリデンとを混合したものである前記のフッ素樹脂製の引き裂きチューブである。 The object of the present invention is solved by a fluororesin tear tube which is made of a fluororesin tear tube made of a mixture of a plurality of different types of thermoplastic fluororesins. can do.
The thermoplastic fluororesin mixture is a tetrafluoroethylene-hexafluoropropylene copolymer, a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, a polyvinylidene fluoride and a tetrafluoroethylene-ethylene copolymer. Is a tear tube made of the above-mentioned fluororesin.
The thermoplastic fluororesin mixture is the above-mentioned fluororesin tear tube in which a tetrafluoroethylene-hexafluoropropylene copolymer and polyvinylidene fluoride are mixed.

本発明のフッ素樹脂製の引き裂きチューブは、異種の熱可塑性フッ素樹脂を配合した原料を溶融押出成形することによって引き裂き性を付与することができるので、製造が容易であると共に、引き裂き特性が安定したフッ素樹脂製の引き裂きチューブを得ることができる。   Since the tear tube made of the fluororesin of the present invention can be provided with tearability by melt extrusion molding a raw material blended with different types of thermoplastic fluororesins, it is easy to manufacture and has stable tear characteristics. A tear tube made of fluororesin can be obtained.

本発明は、異種の熱可塑性樹脂製のフッ素樹脂を配合した原料を溶融押出成形によってチューブ状に成形したことにより、従来のフッ素樹脂のように、ペーストの調製、押し出し成形、焼成という工程を経ることなく特性が安定した引き裂きチューブが得られることを見いだしたものである。
異種の熱可塑性フッ素樹脂を混合することによって、引き裂き性を有するチューブが得られる理由は定かではないが、異種のフッ素樹脂のそれぞれの分子内のＣ−Ｈ結合あるいはＣ−Ｆ結合の長さの差、もしくは凝集エネルギーの差が異なること等によるフッ素樹脂間の相溶性によるものと推定される。 In the present invention, raw materials blended with different types of thermoplastic resins are molded into a tube shape by melt extrusion molding, and thus the steps of paste preparation, extrusion molding, and baking are performed like conventional fluororesins. It has been found that a tear tube having stable characteristics can be obtained without any problems.
The reason why a tube having tearability can be obtained by mixing different types of thermoplastic fluororesins is not clear, but the length of the C—H bond or C—F bond in each molecule of the different types of fluororesin is not clear. It is presumed to be due to the compatibility between the fluororesins due to the difference or the difference in the cohesive energy.

本発明の引き裂き性を有する異種の熱可塑性フッ素樹脂の混合物としては、具体的には、テトラフルオロエチレン−ヘキサフルオロプロピレン共重合体（ＦＥＰ）、テトラフルオロエチレン−パーフルオロアルキルビニルエーテル共重合体（ＰＦＡ）、ポリフッ化ビニリデン（ＰＶＤＦ）のいずれかと、テトラフルオロエチレン−エチレン共重合体（ＥＴＦＥ）との混合物を挙げることができる。
また、テトラフルオロエチレン−ヘキサフルオロプロピレン共重合体（ＦＥＰ）とポリフッ化ビニリデン（ＰＶＤＦ）との混合物を挙げることができる。 Specific examples of the mixture of different types of thermoplastic fluororesins having tearability according to the present invention include tetrafluoroethylene-hexafluoropropylene copolymer (FEP), tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA). ) And any one of polyvinylidene fluoride (PVDF) and a mixture of tetrafluoroethylene-ethylene copolymer (ETFE).
Moreover, the mixture of a tetrafluoroethylene-hexafluoropropylene copolymer (FEP) and polyvinylidene fluoride (PVDF) can be mentioned.

フッ素樹脂製チューブの引き裂き性は、それぞれの混合物を構成する異種の熱可塑性フッ素樹脂の配合量によって変化するので、使用目的に応じて適宜、配合量を設定することができる。
例えば、テトラフルオロエチレン−パーフルオロアルキルビニルエーテル共重合体（ＰＦＡ）とテトラフルオロエチレン−エチレン共重合体（ＥＴＦＥ）とを混合した場合には、質量比でＰＦＡ：ＥＴＦＥ＝９５：５〜１０：９０の範囲とすることが好ましい。
また、テトラフルオロエチレン−ヘキサフルオロプロピレン共重合体（ＦＥＰ）とテトラフルオロエチレン−エチレン共重合体（ＥＴＦＥ）とを混合した場合には、質量比でＦＥＰ：ＥＴＦＥ＝９７：３〜５０：５０の範囲とすることが好ましい。 The tearability of the fluororesin tube varies depending on the blending amount of different types of thermoplastic fluororesins constituting each mixture, so that the blending amount can be appropriately set according to the purpose of use.
For example, when a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA) and a tetrafluoroethylene-ethylene copolymer (ETFE) are mixed, PFA: ETFE = 95: 5 to 10:90 by mass ratio. It is preferable to set it as the range.
Further, when tetrafluoroethylene-hexafluoropropylene copolymer (FEP) and tetrafluoroethylene-ethylene copolymer (ETFE) are mixed, the mass ratio of FEP: ETFE = 97: 3 to 50:50 is satisfied. It is preferable to be in the range.

また、ポリフッ化ビニリデン（ＰＶＤＦ）とテトラフルオロエチレン−エチレン共重合体（ＥＴＦＥ）とを混合した場合には、質量比でＰＶＤＦ：ＥＴＦＥ＝９７：３〜２：９８の範囲とすることが好ましい。
また、ポリフッ化ビニリデン（ＰＶＤＦ）とテトラフルオロエチレン−ヘキサフルオロプロピレン共重合体（ＦＥＰ）とを混合した場合には、質量比でＰＶＤＦ：ＦＥＰ＝９２：８〜３：９７の範囲とすることが好ましい。 When polyvinylidene fluoride (PVDF) and tetrafluoroethylene-ethylene copolymer (ETFE) are mixed, the mass ratio is preferably PVDF: ETFE = 97: 3 to 2:98.
Further, when polyvinylidene fluoride (PVDF) and tetrafluoroethylene-hexafluoropropylene copolymer (FEP) are mixed, the mass ratio may be PVDF: FEP = 92: 8 to 3:97. preferable.

以上の熱可塑性フッ素樹脂の組成物には、使用目的に応じてフィラー等を配合しても良い。また、レントゲン照射によって撮影可能とするためには、熱可塑性フッ素樹脂の組成物中に硫酸バリウム等を造影剤として添加しても良い。   The above thermoplastic fluororesin composition may contain a filler or the like depending on the purpose of use. In order to enable photographing by X-ray irradiation, barium sulfate or the like may be added as a contrast agent in the thermoplastic fluororesin composition.

本発明のフッ素樹脂製の引き裂きチューブの成形は、所定の配合量で混合したフッ素樹脂の組成物を溶融押出成形機による成形によって行うことができる。
具体的には、シリンダー径２０ｍｍの単軸溶融押出機を用いて、スクリュー回転数１０ｒｐｍで、サイジングプレート法によるチューブ成形を行うことができる。
温度条件は、樹脂の組み合わせによって異なるが、ＰＦＡ−ＥＴＦＥの場合にはダイ温度３９０℃、ＰＶＤＦ−ＥＴＦＥの場合はダイ温度３１０℃、ＦＥＰ−ＥＴＦＥの場合にはダイ温度３６０℃、ＦＥＰ−ＥＴＦＥの場合にはダイ温度３６０℃、ＦＥＰ−ＰＶＤＦの場合にはダイ温度３１０℃とすることができる。
また、樹脂の配合比によっては、成形状態を考慮して温度を変化させることによって成形時の安定性を増大することができる。
以下に実施例を示し、本発明を説明する。 The fluororesin tear tube of the present invention can be molded by molding a fluororesin composition mixed in a predetermined blending amount with a melt extrusion molding machine.
Specifically, tube formation by a sizing plate method can be performed using a single screw melt extruder having a cylinder diameter of 20 mm and a screw rotation speed of 10 rpm.
The temperature conditions vary depending on the resin combination, but in the case of PFA-ETFE, the die temperature is 390 ° C., in the case of PVDF-ETFE, the die temperature is 310 ° C., in the case of FEP-ETFE, the die temperature is 360 ° C., and the FEP-ETFE In this case, the die temperature can be 360 ° C., and in the case of FEP-PVDF, the die temperature can be 310 ° C.
Further, depending on the blending ratio of the resins, the stability during molding can be increased by changing the temperature in consideration of the molding state.
The following examples illustrate the invention.

（試料の調製）
テトラフルオロエチレン−パーフルオロアルキルビニルエーテル共重合体（三井フロロデュポン製ＰＦＡ−３４０Ｊ）とテトラフルオロエチレン−エチレン共重合体（ＥＴＦＥ：旭硝子製Ｃ−８８ＡＸ）との配合割合を変化させた混合物を準備し、各混合物を用いてシリンダー径２０ｍｍの単軸押出機によって、スクリュー回転数１０ｒｐｍ、ダイ温度３９０℃でサイジングプレート法によるチューブ成形をして、内径１．０ｍｍ、外形１．４ｍｍ、肉厚０．２ｍｍの試料を作製した。 (Sample preparation)
A mixture in which the blending ratio of a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFI-340J made by Mitsui Fluoro DuPont) and a tetrafluoroethylene-ethylene copolymer (ETFE: C-88AX made by Asahi Glass) was changed was prepared. Each tube was formed into a tube by the sizing plate method at a screw rotation speed of 10 rpm and a die temperature of 390 ° C. by a single screw extruder having a cylinder diameter of 20 mm, and an inner diameter of 1.0 mm, an outer diameter of 1.4 mm, and a wall thickness of 0. A 2 mm sample was prepared.

（評価試験方法）
指先のみで引き裂きが可能であるか、あるいはカミソリによって切り込みを入れて切り込み部からの引き裂きが可能であるか否かを試験し、指先のみで引き裂きが可能であるものについては、「手で裂ける」と評価をし、カミソリによって切り込みを入れて切り込み部からの引き裂きが可能であるものについては、「切り込み必要」と評価した。
引き裂きが可能であったものについて、長さ１００ｍｍの試料の一方の端部に４０ｍｍの切り込みを設けて、引っ張り試験機によって、２００ｍｍ／ｍｉｎの速度で引き裂き、そのときの最大の力を測定して、引き裂き強度とした。また、測定は同一組成の試料について３回行い、その加重平均値を求めて、表１に示す。 (Evaluation test method)
Test whether it is possible to tear only with the fingertip or whether it is possible to tear from the notch with a razor. Evaluation was made for those that can be cut with a razor and can be torn from the cut portion.
For what could be torn, a 40 mm incision was made at one end of a 100 mm long sample, and it was torn at a speed of 200 mm / min with a tensile tester, and the maximum force at that time was measured. The tear strength was determined. Further, the measurement was performed three times for samples having the same composition, and the weighted average value was obtained and shown in Table 1.

Figure 2007321817
Figure 2007321817

（試料の作製）
ポリフッ化ビニリデン（ＰＶＤＦ：アルケマ製 ＫＹＮＡＲ７４０）とテトラフルオロエチレン−エチレン共重合体（ＥＴＦＥ：旭硝子製Ｃ−８８ＡＸ）との配合割合を変化させた混合物を準備し、各混合物を用いてシリンダー径２０ｍｍの単軸押出機によって、スクリュー回転数１０ｒｐｍ、ダイ温度３１０℃でサイジングプレート法によるチューブ成形をして、内径１．０ｍｍ、外形１．４ｍｍ、肉厚０．２ｍｍの試料を作製した。 (Sample preparation)
A mixture in which the blending ratio of polyvinylidene fluoride (PVDF: KYNAR 740 manufactured by Arkema) and tetrafluoroethylene-ethylene copolymer (ETFE: C-88AX manufactured by Asahi Glass) was changed was prepared, and a cylinder diameter of 20 mm was prepared using each mixture. A single-screw extruder was used to form a tube having an inner diameter of 1.0 mm, an outer diameter of 1.4 mm, and a thickness of 0.2 mm by tube forming by a sizing plate method at a screw rotation speed of 10 rpm and a die temperature of 310 ° C.

（評価試験方法）
実施例１と同様に評価し、その結果を表２に示す。 (Evaluation test method)
Evaluation was conducted in the same manner as in Example 1, and the results are shown in Table 2.

Figure 2007321817
Figure 2007321817

（試料の作製）
テトラフルオロエチレン−ヘキサフルオロプロピレン共重合体（三井フロロデュポン製ＦＥＰ−１００Ｊ）とテトラフルオロエチレン−エチレン共重合体（ＥＴＦＥ：旭硝子製Ｃ−８８ＡＸ）との配合割合を変化させた混合物を準備し、各混合物を用いてシリンダー径２０ｍｍの単軸押出機によって、スクリュー回転数１０ｒｐｍ、ダイ温度３６０℃でサイジングプレート法によるチューブ成形をして、内径１．０ｍｍ、外形１．４ｍｍ、肉厚０．２ｍｍの試料を作製した。 (Sample preparation)
Preparing a mixture in which the blending ratio of tetrafluoroethylene-hexafluoropropylene copolymer (FEI-100J manufactured by Mitsui Fluoro DuPont) and tetrafluoroethylene-ethylene copolymer (ETFE: C-88AX manufactured by Asahi Glass) was changed, Using each mixture, a tube was formed by a sizing plate method at a screw rotation speed of 10 rpm and a die temperature of 360 ° C. with a single screw extruder having a cylinder diameter of 20 mm, and an inner diameter of 1.0 mm, an outer diameter of 1.4 mm, and a wall thickness of 0.2 mm. A sample of was prepared.

（評価試験方法）
実施例１と同様に評価し、その結果を表３に示す。 (Evaluation test method)
Evaluation was conducted in the same manner as in Example 1, and the results are shown in Table 3.

Figure 2007321817
Figure 2007321817

（試料の作製）
ポリフッ化ビニリデン（ＰＶＤＦ：アルケマ製 ＫＹＮＡＲ７４０）とテトラフルオロエチレン−ヘキサフルオロプロピレン共重合体（三井フロロデュポン製ＦＥＰ−１００Ｊ）との配合割合を変化させた混合物を準備し、各混合物を用いてシリンダー径２０ｍｍの単軸押出機によって、スクリュー回転数１０ｒｐｍ、ダイ温度３１０℃でサイジングプレート法によるチューブ成形をして、内径１．０ｍｍ、外形１．４ｍｍ、肉厚０．２ｍｍの試料を作製した。 (Sample preparation)
A mixture in which the blending ratio of polyvinylidene fluoride (PVDF: KYNAR740 made by Arkema) and tetrafluoroethylene-hexafluoropropylene copolymer (FEP-100J made by Mitsui Fluoro DuPont) was changed was prepared, and the cylinder diameter using each mixture Using a 20 mm single screw extruder, a tube was formed by a sizing plate method at a screw rotation speed of 10 rpm and a die temperature of 310 ° C. to prepare a sample having an inner diameter of 1.0 mm, an outer diameter of 1.4 mm, and a wall thickness of 0.2 mm.

（評価試験方法）
実施例１と同様に評価し、その結果を表４に示す。 (Evaluation test method)
Evaluation was conducted in the same manner as in Example 1, and the results are shown in Table 4.

Figure 2007321817
Figure 2007321817

本発明の異種の熱可塑性フッ素樹脂を配合して製造した引き裂きチューブは、配合する熱可塑性フッ素樹脂の配合割合を変えることによって、所望の引き裂き強度を有する引き裂きチューブを作製することができる。また、従来のフッ素樹脂のように、有機溶剤と混練したペーストの押し出し成形、乾燥、焼成という多段の工程を経ることなく製造することができるので、所望の特性の引き裂きチューブを安定して提供することができる。   The tear tube manufactured by blending the different types of thermoplastic fluororesins of the present invention can produce a tear tube having a desired tear strength by changing the blending ratio of the thermoplastic fluororesin blended. In addition, as with conventional fluororesins, it can be produced without going through multiple steps of extrusion molding, drying and firing of paste kneaded with an organic solvent, so that a tear tube with desired characteristics can be stably provided. be able to.

Claims (3)

フッ素樹脂製の引き裂きチューブにおいて、フッ素樹脂が種類の異なる複数の熱可塑性フッ素樹脂の混合物からなることを特徴とするフッ素樹脂製の引き裂きチューブ。 A fluororesin tear tube, wherein the fluororesin comprises a mixture of a plurality of different types of thermoplastic fluororesins. 熱可塑性フッ素樹脂の混合物が、テトラフルオロエチレン−ヘキサフルオロプロピレン共重合体、テトラフルオロエチレン−パーフルオロアルキルビニルエーテル共重合体、ポリフッ化ビニリデンのいずれか１種とテトラフルオロエチレン−エチレン共重合体とを混合したものであることを特徴とする請求項１記載のフッ素樹脂製の引き裂きチューブ。 A mixture of thermoplastic fluororesin is a tetrafluoroethylene-hexafluoropropylene copolymer, a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, a polyvinylidene fluoride and a tetrafluoroethylene-ethylene copolymer. The tear tube made of a fluororesin according to claim 1, which is a mixture. 熱可塑性フッ素樹脂の混合物が、テトラフルオロエチレン−ヘキサフルオロプロピレン共重合体とポリフッ化ビニリデンとを混合したものであることを特徴とする請求項１記載のフッ素樹脂製の引き裂きチューブ。 2. The fluororesin tear tube according to claim 1, wherein the thermoplastic fluororesin mixture is a mixture of tetrafluoroethylene-hexafluoropropylene copolymer and polyvinylidene fluoride.
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JP2008020037A (en) * 2006-07-14 2008-01-31 Junkosha Co Ltd Fluoroplastic tube with tearable characteristic
WO2013077452A1 (en) * 2011-11-21 2013-05-30 株式会社 潤工社 Thermally shrinkable tube having tearing properties
JP5839310B1 (en) * 2015-02-01 2016-01-06 株式会社潤工社 Heat shrinkable tube with tearability
US9440044B2 (en) 2014-06-06 2016-09-13 Zeus Industrial Products, Inc. Peelable heat-shrink tubing
US10898616B1 (en) 2017-07-11 2021-01-26 Teleflex Medical Incorporated Peelable heat-shrink tubing

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JP2008020037A (en) * 2006-07-14 2008-01-31 Junkosha Co Ltd Fluoroplastic tube with tearable characteristic
US9446171B2 (en) 2011-11-21 2016-09-20 Junkosha Inc. Heat-shrinkable tube having tearability
WO2013077452A1 (en) * 2011-11-21 2013-05-30 株式会社 潤工社 Thermally shrinkable tube having tearing properties
JP5518268B2 (en) * 2011-11-21 2014-06-11 株式会社潤工社 Heat shrinkable tube with tearability
KR101844628B1 (en) 2011-11-21 2018-04-02 가부시키가이샤 쥰코샤 Thermally shrinkable tube having tearing properties
US9623154B2 (en) 2011-11-21 2017-04-18 Junkosha Inc. Heat-shrinkable tube having tearability
US9901661B2 (en) 2014-06-06 2018-02-27 Zeus Industrial Products, Inc. Peelable heat-shrink tubing
US9440044B2 (en) 2014-06-06 2016-09-13 Zeus Industrial Products, Inc. Peelable heat-shrink tubing
US10434222B2 (en) 2014-06-06 2019-10-08 Zeus Industrial Products, Inc. Peelable heat-shrink tubing
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JP5839310B1 (en) * 2015-02-01 2016-01-06 株式会社潤工社 Heat shrinkable tube with tearability
US10898616B1 (en) 2017-07-11 2021-01-26 Teleflex Medical Incorporated Peelable heat-shrink tubing

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