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    • 81. 发明公开
    • RUBBER COMPOSITION AND PNEUMATIC TIRE USING SAME
    • 。。。AM。。。。。。。。。。
    • EP2743304A1
    • 2014-06-18
    • EP12822330.2
    • 2012-08-01
    • Bridgestone Corporation
    • KONNO, KumikoKANOU, Motoaki
    • C08L21/00B60C5/14C08K3/00C08K5/098C08L23/22
    • C08K3/04B60C1/0008C08K3/013C08K3/346C08K5/098C08K2201/016C08L23/22C08L91/00C08L21/00C08L23/28
    • The present invention provides a rubber composition exhibiting good workability and suitable for use in an inner liner of a tire. Specifically, the present invention provides a rubber composition, comprising: a rubber component; an inorganic filler having an aspect ratio of 2 to 200; and optionally at least one of carbon black and a metal salt of aliphatic acid, wherein contents of the inorganic filler, the carbon black and the metal salt of aliphatic acid satisfy following formula (1): C ≥ 0.016 × A - 0.5 × B - 1.18
      In formula (1), "A" represents a content (parts by mass) of the inorganic filler with respect to 100 parts by mass of the rubber component, "B" represents a content (parts by mass) of the carbon black with respect to 100 parts by mass of the rubber component, and "C" represents a content (parts by mass) of the metal salt of aliphatic acid with respect to 100 parts by mass of the rubber component.
    • 本发明提供一种表现出良好的加工性并适用于轮胎内衬的橡胶组合物。 具体地,本发明提供一种橡胶组合物,其包含:橡胶组分; 长径比为2〜200的无机填料; 和任选的碳黑和脂肪酸金属盐中的至少一种,其中无机填料,炭黑和脂族酸的金属盐的含量满足下式(1):C‰¥0.016×A-0.5×B - 1.18在式(1)中,“A”表示无机填料相对于100质量份橡胶成分的含量(质量份),“B”表示炭黑的含量(质量份) 相对于100质量份的橡胶成分,“C”表示相对于100质量份的橡胶成分,脂肪酸的金属盐的含量(质量份)。
    • 88. 发明公开
    • STRIP, METHOD FOR PRODUCING SAME, AND METHOD FOR PRODUCING PNEUMATIC TIRE
    • 条带,其制造方法以及制造气胎胎体的方法
    • EP2644367A1
    • 2013-10-02
    • EP11847081.4
    • 2011-06-17
    • Sumitomo Rubber Industries, Ltd.
    • SUGIMOTO, Mutsuki
    • B29D30/16B60C5/14B60C9/02B60C15/00C08L7/00C08L23/22C08L53/00
    • B60C5/14B29D30/10B29D30/1621B29D30/1628B29D30/3028B29D2030/0682B29D2030/1678B60C1/0008B60C2005/145B60C2005/147C08L7/00C08L23/22C08L53/00Y10T428/24488
    • Adhesive property between an inner liner and a carcass ply is improved together with tire uniformity, thereby reducing crack growth following repeated flection deformation during traveling with a tire. A strip to be wound on an outer circumferential surface of a core body in a circumferential direction to form an inner liner having a shape close to a finished sectional shape of a tire is provided. The strip is formed of a single layer including a first layer arranged in a tire innermost layer or composite layers of the first layer and a second layer disposed adjacently to a carcass ply and made of a thermoplastic elastomer composition. The first layer is a thermoplastic elastomer composition containing a styrene-isobutylene-styrene block copolymer and at least one kind of a tackifier, a butyl-based rubber and a natural rubber. The strip has a strip main body having a thickness (T1) of 0.02 to 1.0 mm and ear portions formed on opposite sides of the strip main body. The ear portions have a thickness (T2) smaller than the thickness (T1) and a width (W2) of 0.5 mm to 5.0 mm.
    • 内衬和胎体帘布层之间的粘合性能与轮胎均匀性一起得到改善,由此减少在轮胎行驶期间反复弯曲变形后的裂纹生长。 本发明提供一种带材,该带材沿周向卷绕在芯体的外周面上,形成具有接近轮胎的最终截面形状的形状的内衬层。 条由单层形成,该单层包括布置在轮胎最内层中的第一层或者第一层和与胎体帘布层相邻布置且由热塑性弹性体组合物制成的第二层的复合层。 第一层是含有苯乙烯 - 异丁烯 - 苯乙烯嵌段共聚物和至少一种增粘剂,丁基橡胶和天然橡胶的热塑性弹性体组合物。 条带具有厚度(T1)为0.02至1.0mm的条带主体和在条带主体的相对侧上形成的耳部。 耳部具有小于厚度(T1)的厚度(T2)和0.5mm至5.0mm的宽度(W2)。