MULTILAYER PIPE

To provide a multilayer pipe that is excellent in adhesion between an inner layer and an outer layer, and is excellent in weather resistance and impact resistance.SOLUTION: A multilayer pipe 11 includes an inner layer 1 containing a vinyl chloride-based resin and an outer layer 2 containing an acryl...

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Bibliographische Detailangaben
Hauptverfasser:	KONAMI YOSHIYUKI, MISHIMA SHOJI, NAKAMURA HIRONOBU
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BLASTING CHEMISTRY COMPOSITIONS BASED THEREON ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIGHTING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THEIR PREPARATION OR CHEMICAL WORKING-UP THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	To provide a multilayer pipe that is excellent in adhesion between an inner layer and an outer layer, and is excellent in weather resistance and impact resistance.SOLUTION: A multilayer pipe 11 includes an inner layer 1 containing a vinyl chloride-based resin and an outer layer 2 containing an acrylic urethane resin, in which the acrylic urethane resin is a reactant of an acrylic polyol compound and an isocyanate compound, the isocyanate compound contains an isocyanate compound that is a trimer, when a sample obtained by subjecting the outer layer to cresol treatment is measured by gel permeation chromatography, a ratio of a peak area derived from an isocyanate compound appearing as a molecular weight of 2,000 or more and 7,000 or less in 100% of a peak area derived from the isocyanate compound is 10% or more and 90% or less.SELECTED DRAWING: Figure 1 【課題】内層と外層との接着性に優れ、かつ耐候性及び耐衝撃性に優れる多層管の提供。【解決手段】塩化ビニル系樹脂を含む内層１と、アクリルウレタン樹脂を含む外層２とを備え、アクリルウレタン樹脂が、アクリルポリオール化合物と、イソシアネート化合物との反応物であり、イソシアネート化合物が、３量体であるイソシアネート化合物を含み、外層をクレゾール処理して得られた試料を、ゲル浸透クロマトグラフィーにより測定したときに、イソシアネート化合物に由来するピーク面積１００％中、２０００以上７０００以下の分子量として現れるイソシアネート化合物に由来するピーク面積の割合が、１０％以上９０％以下である、多層管１１。【選択図】図１