To provide a refrigerant transport hose which is excellent in flexibility, water vapor barrier performance and heat resistance.SOLUTION: In a refrigerant transport hose including an outer layer, a reinforcing layer and an inner layer, the outer layer is composed of a resin composition containing an elastomer having a polyisobutylene skeleton, and a cross linking resin. A content of the elastomer having the polyisobutylene skeleton in the resin composition is equal to or high than 30 mass% and equal to or lower than 90 mass% with a mass of the resin composition as a reference, a content of the cross linking resin in the resin composition is equal to or higher than 10 mass% and equal to or lower than 70 mass% with the mass of the resin composition as a reference, a water vapor permeation degree of the resin composition is equal to or lower than 2.0 g.mm/(m2. 24h), and a ratio TB100/TB25 of fracture intensity TB100 at a temperature of 100°C of the resin composition and fracture intensity TB25 at a temperature of 25°C is 0.2 to 1.0.SELECTED DRAWING: Figure 1

    【課題】柔軟性、水蒸気バリア性および耐熱性に優れる冷媒輸送用ホースを提供する。【解決手段】外層、補強層および内層を含む冷媒輸送用ホースであって、外層がポリイソブチレン骨格を有するエラストマーおよび架橋樹脂を含む樹脂組成物からなり、樹脂組成物中のポリイソブチレン骨格を有するエラストマーの含有量が樹脂組成物の質量を基準として30質量%以上90質量%以下であり、樹脂組成物中の架橋樹脂の含有量が樹脂組成物の質量を基準として10質量%以上70質量%以下であり、樹脂組成物の水蒸気透過度が2.0g・mm/(m2・24h)以下であり、樹脂組成物の100℃における破断強度TB100と25℃における破断強度TB25の比TB100/TB25が0.2~1.0であることを特徴とする。【選択図】図1


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    Title :

    REFRIGERANT TRANSPORT HOSE AND ITS MANUFACTURING METHOD


    Additional title:

    冷媒輸送用ホースおよびその製造方法


    Contributors:

    Publication date :

    2023-10-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16L PIPES , Rohre / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / F24F Klimatisierung , AIR-CONDITIONING



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