To reduce heat generation property and improve adhesion of a laminate including a layer of a rubber composition, a layer of a thermoplastic resin or a layer of a thermoplastic elastomer composition.SOLUTION: A laminate for pneumatic tire includes a layer for unvulcanized rubber composition, a layer of a thermoplastic resin or a layer of a thermoplastic elastomer composition, in which the unvulcanized rubber composition contains a rubber component, and with respect to 100 pts.mass of the rubber component, 0.5-20 pts.mass of a condensate of a substituted or non-substituted phenol compound having a specific structure and formaldehyde, 0.25-200 pts.mass of a methylene donor, 0.5-5 pts.mass of a substituted or non-substituted aromatic carboxylic acid having a pKa of 1.5-4.0 at a temperature of 25°C, 20-100 pts.mass of calcium carbonate, 0-20 pts.mass of carbon black and a vulcanizer are contained, and a mass ratio of the methylene donor and the condensate is 0.5:1 to 10:1.SELECTED DRAWING: None
【課題】ゴム組成物の層と、熱可塑性樹脂の層又は熱可塑性エラストマー組成物の層とを含む積層体の発熱性の低減と接着性の向上。【解決手段】未加硫ゴム組成物の層と、熱可塑性樹脂の層又は熱可塑性エラストマー組成物の層とを含む空気入りタイヤ用の積層体であって、未加硫ゴム組成物が、ゴム成分と、ゴム成分100質量部に対して、0.5〜20質量部の特定構造を有する置換又は非置換フェノール系化合物とホルムアルデヒドとの縮合物、0.25〜200質量部のメチレンドナー、0.5〜5質量部の温度25℃でpKaが1.5〜4.0である置換又は非置換芳香族カルボン酸、20〜100質量部の炭酸カルシウム、0〜20質量部のカーボンブラックと、及び加硫剤とを含み、メチレンドナーと縮合物との質量比が0.5:1〜10:1である、空気入りタイヤ用積層体。【選択図】なし
LAMINATE FOR PNEUMATIC TIRE, INNER LINER MATERIAL AND METHOD FOR PRODUCING PNEUMATIC TIRE
空気入りタイヤ用の積層体、インナーライナー材及び空気入りタイヤの製造方法
2019-05-23
Patent
Electronic Resource
Japanese
IPC: | 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 / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand / B60C VEHICLE TYRES , Fahrzeugreifen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen |
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