KR0163478B1 - Multi-layer tube for fluid - Google Patents

Multi-layer tube for fluid Download PDF

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Publication number
KR0163478B1
KR0163478B1 KR1019950005401A KR19950005401A KR0163478B1 KR 0163478 B1 KR0163478 B1 KR 0163478B1 KR 1019950005401 A KR1019950005401 A KR 1019950005401A KR 19950005401 A KR19950005401 A KR 19950005401A KR 0163478 B1 KR0163478 B1 KR 0163478B1
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KR
South Korea
Prior art keywords
layer
plastic layer
polyamide
inner plastic
tube
Prior art date
Application number
KR1019950005401A
Other languages
Korean (ko)
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KR960008146A (en
Inventor
케르테스츠 야노스
Original Assignee
외르겐 에스. 라스무쎈
라스무쎈 게엠베하
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Publication of KR960008146A publication Critical patent/KR960008146A/en
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Publication of KR0163478B1 publication Critical patent/KR0163478B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/02—Rigid pipes of metal
    • F16L9/06—Corrugated pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

본 발명은, 예를들면 EPDM과 같은 완전 교차-결합된 고무상의 개량된 열가소성 탄성중합체를 포함하는 내측 플라스틱층(2) 및 폴리아미드층(1)을 지니는 유체용 다층 튜브에 관한 것인 바, 상기 2개의 층(1, 2)들은 일반적으로 접착촉진제의 사용으로 연결된다. 접착 촉진제가 회피되도록 연결을 단순화하기 위하여, 내측 플라스틱층(2)의 탄성중합체가 주요 구성요소로서 관능기를 갖는 폴리올레핀 및 폴리아미드의 공중합체를 포함하도록 제조된다.The present invention relates to a multilayer tube for fluids having an inner plastic layer (2) and a polyamide layer (1) comprising, for example, an improved thermoplastic elastomer on a fully cross-linked rubber such as EPDM. The two layers 1, 2 are generally connected by the use of an adhesion promoter. In order to simplify the connection so that the adhesion promoter is avoided, the elastomer of the inner plastic layer 2 is made to include a copolymer of polyolefin and polyamide having functional groups as main components.

Description

유체용 다층 튜브Multilayer Tubes for Fluids

제1도는 본 발명에 따른 파형(corrugated) 다층 튜브의 도면.1 is a diagram of a corrugated multilayer tube in accordance with the present invention.

제2도는 제1도에 따른 튜브의 배척 부분절취도.2 shows a partial cutaway view of the tube according to FIG. 1.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 폴리아미드층 2 : 내측 플라스틱층1: polyamide layer 2: inner plastic layer

3 : 외측 플라스틱층3: outer plastic layer

본 발명은 예를들면 EPDM(ethylene propylen dien monomer)과 같은 완전 교차-결합된 고무상(rubber phase)의 개량된 열가소성(熱可塑性) 탄성중합체를 포함하는 내측 플라스틱층 및 폴리아미드층을 지니는, 유체용 다층 튜브에 관한 것이다.The present invention is a fluid having an inner plastic layer and a polyamide layer comprising an improved thermoplastic elastomer in a fully cross-linked rubber phase, for example ethylene propylen dien monomer (EPDM). It relates to a multilayer tube for.

폴리아미드는 하중하에서 높은 기계적 안정성 및 내열성과 높은 밀봉능력(sealing capacity)을 지니며, 완전 교차-결합된 고무상의 탄성중합체는 글리콜 및 물의 혼합물과 같은 화학 물질에 대하여 높은 저항을 지니기 때문에, 연속적 또는 부분적 파형의 상기 종류의 튜브는 일반적으로 자동차의 라디에이터 호스로서 사용된다. 다른 이유는 심지어 저온에서 조차 높은 가요성을 지닌다는 것이다. 또한, 상기 재료는 고온에서 높은 치수 안정성(dimensional stability)을 지니며, 노화(ageing)에 대한 양호한 저항성을 지닌다.Polyamides have high mechanical stability and heat resistance under load and high sealing capacity, and fully cross-linked rubbery elastomers have a high resistance to chemicals such as mixtures of glycols and water, Tubes of this kind of partial waveform are generally used as radiator hoses for motor vehicles. Another reason is that it is highly flexible even at low temperatures. In addition, the material has high dimensional stability at high temperatures and has good resistance to ageing.

한가지 단점은 외부층과 내부층들을 견고하게 결합시키기 위하여 상기 2개의 층들 사이에 항상 접착 촉진제(adhesion promoter)가 필요하다는 것이다. 이것은 대량 생산을 위하여 비용이 많이 들게한다.One disadvantage is that an adhesion promoter is always required between the two layers to firmly bond the outer and inner layers. This is costly for mass production.

본 발명의 목적은 제조하기에 더 용이한, 전술한 종류의 다층 튜브를 제공하는 것이다.It is an object of the present invention to provide a multilayer tube of the kind described above which is easier to manufacture.

본 발명에 따라, 상기 문제점이 해결되는 바, 내측 플라스틱층의 탄성중합체는 주요 구성요소로서 관능기를 갖는(functionalised) 폴리올레핀 및 폴리아미드의 공중합체를 포함한다.According to the present invention, the above problem is solved, and the elastomer of the inner plastic layer comprises a copolymer of functionalized polyolefin and polyamide as main components.

본 실시예에서는, 폴리아미드층과 내측 플라스틱층 사이에 접착 촉진제가 존재하지 않는다. 그럼에도 불구하고, 양층(兩層)들은 열적으로 연화된 상태에서 견고한 연결부로 변이된다. 따라서, 상기 종류의 다층 튜브를 제조하는것이 더 용이하다.In this embodiment, there is no adhesion promoter between the polyamide layer and the inner plastic layer. Nevertheless, both layers turn into solid connections in a thermally softened state. Thus, it is easier to manufacture multilayer tubes of this kind.

완전 교차-결합된 고무상의 개량된 열가소성 탄성중합체를 포함하는 플라스틱층이 폴리아미드층의 외측상에 제공되는 것이 바람직하다. 이러한 종류의 튜브는 화학물질에 대하여 외향으로 저항하며, 예를들면 교차된(interaced)층과 같은 다른 외부층에 용이하게 연결될 수 있다.It is preferred that a plastic layer comprising an improved thermoplastic elastomer on a fully cross-linked rubber is provided on the outer side of the polyamide layer. Tubes of this kind are outwardly resistant to chemicals and can be easily connected to other outer layers, for example interaced layers.

이제, 적절한 실시예가 첨부도면을 참조로 더 상세히 설명될 것이다.Suitable embodiments will now be described in more detail with reference to the accompanying drawings.

제1도에 도시된 파형 다층 튜브는, 제2도에 도시된 바와같이, 폴리아미드층(1), 내측 플라스틱층(2) 및 외측 플라스틱층(3)으로 구성된다. 2개의 층(2 및 3)들은 예를들면 EDPM과 같이 완전 교차-결합된 고무상의 개량된 열가소성 탄성중합체를 포함한다. 플라스틱층(2 및 3)들의 탄성중합체는 주요 구성요소로서 관능기를 갖는 폴리올레핀 및 폴리아미드의 공중합체를 포함한다.The corrugated multilayer tube shown in FIG. 1 is composed of a polyamide layer 1, an inner plastic layer 2 and an outer plastic layer 3, as shown in FIG. The two layers 2 and 3 comprise an improved thermoplastic elastomer on a fully cross-linked rubber, for example EDPM. The elastomer of the plastic layers 2 and 3 comprises copolymers of polyolefins and polyamides having functional groups as main components.

따라서, 다층 튜브는, 고온 및 저온에서 치수 안정되고, 확산 불투과성 및 내압축성일 뿐만 아니라, 침식성 화학물질에 대하여 내향 및 외향으로 저항한다.Thus, multilayer tubes are dimensionally stable at high and low temperatures and are not only diffusion impermeable and compressive resistant, but also resist inwardly and outwardly against erosive chemicals.

적용에 따라, 외측 플라스틱층(3)은 생략될 수도 있다.Depending on the application, the outer plastic layer 3 may be omitted.

변형적으로, 다층 튜브는 예를들면 파형이 없이 평탄하게 될 수 있다. 그러나, 파형은 튜브에 더 큰 유연성(suppleness)을 부여한다. 예를들면, 압출 성형(extrusion blowing)에 의해, 튜브가 용이하게 제조된다.Alternatively, the multilayer tube can be flat, for example without a wave. However, the waveform gives the tube more suppleness. For example, by extrusion blowing, the tube is easily produced.

Claims (2)

완전 교차-결합된 고무상의 개량된 열가소성 탄성중합체를 포함하는 내측 플라스틱층(2) 및 폴리아미드층(1)을 지니는 유체용 다층 튜브로서, 상기 내측 플라스틱 층(2)의 탄성중합체는 주요 구성요소로서 관능기를 갖는 폴리올레핀 및 폴리아미드의 공중합체를 포함하는 것을 특징으로하는 유체용 다층 튜브.A multilayer tube for fluids having an inner plastic layer (2) and a polyamide layer (1) comprising an improved thermoplastic elastomer of fully cross-linked rubber, wherein the elastomer of the inner plastic layer (2) is a major component A multi-layer tube for a fluid comprising a copolymer of a polyolefin having a functional group and a polyamide. 제1항에 있어서, 완전 교차-결합된 고무상의 개량된 열가소성 탄성중합체를 포함하는 플라스틱층(3)이 폴리아미드층(1)의 외측상에 제공되는 것을 특징으로하는 튜브.Tube according to claim 1, characterized in that a plastic layer (3) is provided on the outer side of the polyamide layer (1) comprising an improved thermoplastic elastomer on a fully cross-linked rubber.
KR1019950005401A 1994-08-10 1995-03-16 Multi-layer tube for fluid KR0163478B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE94-P4428236.2 1994-08-10
DE4428236A DE4428236C1 (en) 1994-08-10 1994-08-10 Multi layer hose for motor coolants

Publications (2)

Publication Number Publication Date
KR960008146A KR960008146A (en) 1996-03-22
KR0163478B1 true KR0163478B1 (en) 1999-01-15

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DE (1) DE4428236C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101431082B1 (en) * 2011-03-29 2014-09-22 노르마 저머니 게엠베하 Directional fluid line

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5778942A (en) * 1996-07-01 1998-07-14 Stanley Aviation Corporation Vehicle including freeze stress resistant fluid conducting apparatuses
DE50207999D1 (en) * 2002-05-07 2006-10-12 Ems Chemie Ag Corrugated multi-layer polymer hose or pipe with reduced length change
DE102004036179A1 (en) 2004-07-26 2006-03-23 Degussa Ag Coolant line
EP2366539B1 (en) 2010-03-15 2013-05-08 Ems-Patent Ag Two-layer plastic tubing part for pressurised fluid lines
DE102015205081A1 (en) * 2015-03-20 2016-09-22 Fränkische Industrial Pipes GmbH & Co. KG Multi-layer corrugated pipe

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3715251A1 (en) * 1987-05-08 1988-12-01 Caprano & Brunnhofer MOTOR VEHICLE PIPELINE FOR GUIDING AN ALCOHOLIC MEDIUM
DE3821723C1 (en) * 1988-06-28 1989-09-21 Technoform Caprano + Brunnhofer Kg, 3501 Fuldabrueck, De Multilayer motor vehicle pipe produced by coextrusion
DE4214383C2 (en) * 1992-04-30 1996-08-14 Inventa Ag Coextruded multilayer polymer tube
DE4238696C2 (en) * 1992-11-17 1994-09-08 Rasmussen Gmbh Fluid piping and process for its manufacture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101431082B1 (en) * 2011-03-29 2014-09-22 노르마 저머니 게엠베하 Directional fluid line
US9309999B2 (en) 2011-03-29 2016-04-12 Norma Germany Gmbh Directional fluid line

Also Published As

Publication number Publication date
KR960008146A (en) 1996-03-22
DE4428236C1 (en) 1995-11-02

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