PROBLEM TO BE SOLVED: To provide a laminate of a rubber layer and a resin layer in which generation of cracks after wet heat degradation is suppressed, a tire formed by vulcanizing the laminate and a manufacturing method therefor.SOLUTION: There is provided a laminate having a rubber layer and a resin layer containing a compound containing an ester bond, in which the rubber layer contains a rubber component, silica, aliphatic acid and a compound with 8≤pKa<11, and satisfying a condition 1: 8≤d(D1)<10 or condition 2: 10≤d(D1)<11 and 0.085×B+1.2×C-2.8×D>2.2, where silica content based on 100 pts.mass of the rubber component in the rubber layer is B pts.mass, aliphatic acid content based on 100 pts.mass of the rubber component in the rubber layer is C pts.mass, content of the compound with 10≤pKa<11 based on 100 pts.mass of the rubber component in the rubber layer is D pts.mass, and pKa of a compound having the highest pKa of the compound with 8≤pKa
【課題】湿熱劣化後のクラックの発生が抑制されたゴム層と樹脂層との積層体、該積層体を加硫してなるタイヤ、及びその製造方法の提供。【解決手段】ゴム層、及びエステル結合を含む化合物を含有する樹脂層を有する積層体で、ゴム層がゴム成分、シリカ、脂肪酸、及び8≦pKa<11である化合物を含有し、ゴム層におけるゴム成分100質量部に対するシリカの含有量をB質量部、ゴム層におけるゴム成分100質量部に対する脂肪酸の含有量をC質量部、ゴム層におけるゴム成分100質量部に対する10≦pKa<11である化合物の含有量をD質量部、ゴム層が含有する8≦pKa<11未満である化合物のうち、最もpKaが高い化合物のpKaをd(D1)としたとき、下記条件1又は条件2を満たす積層体。条件1:8≦d(D1)<10、条件2:10≦d(D1)<11、0.085×B+1.2×C−2.8×D>2.2【選択図】なし
LAMINATE, TIRE AND MANUFACTURING METHOD THEREFOR
積層体、並びに、タイヤ及びその製造方法
02.11.2017
Patent
Elektronische Ressource
Japanisch
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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