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    • 82. 发明专利
    • Pneumatic tire
    • 气动轮胎
    • JP2009023567A
    • 2009-02-05
    • JP2007190154
    • 2007-07-20
    • Bridgestone Corp株式会社ブリヂストン
    • YAMAGUCHI MASAHIROZUIKO YUGOYOKOKURA HIROYUKI
    • B60C9/04B60C9/00D01F6/76D02G3/28D02G3/48
    • B60C9/04B60C2009/0284
    • PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of securely improving many kinds of performance such as cut resistance, low rolling resistance or the like without increasing the weight of the tire by applying a reinforcing material formed into cord fabrics by using polyketone fibers to the tire.
      SOLUTION: This pneumatic tire is provided with a carcass ply 5 composed of cord layers extended to both beads 1 through both buttress parts 3 and both side walls 2 sequentially from a crown, fixed in the beads 1, and arranged in a substantially radial direction. A carcass ply cord 5 includes at least 50 wt.% of polyketone fibers or more, maximum heat shrinkage stress as a dip treated cord is in a range of 0.1-1.8 cN/dtex, and a shrinkage percentage when treated by being dryed and heated at 150°C for 30 minutes is in a range of 1-5%. The carcass ply 5 includes wefts crossing the carcass ply cord arranged in a substantially radial direction, and the carcass ply 5 in the buttress part 3 satisfies a following relation; L≤0.25r.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够通过使用形成在绳状织物中的增强材料,通过使用通过使用形成在绳状织物中的增强材料而不增加轮胎的重量,可以可靠地提高诸如耐切割性,低滚动阻力等的许多性能的充气轮胎 聚酮纤维到轮胎。 解决方案:该充​​气轮胎设置有胎体帘布层5,胎体帘布层5由帘线层组成,帘线层通过两个支撑部件3和两个侧壁2顺序地从冠部延伸到两个胎圈1,固定在胎圈1中,并且基本上 径向。 胎体帘布层5包括至少50重量%的聚酮纤维或更多,作为浸渍处理的帘线的最大热收缩应力在0.1-1.8cN / dtex的范围内,当通过干燥和加热处理时的收缩率 在150℃下30分钟在1-5%的范围内。 胎体帘布层5包括穿过大致径向布置的胎体帘布层帘布层的纬纱,并且支撑部3中的胎体帘布层5满足以下关系: L≤0.25r。 版权所有(C)2009,JPO&INPIT
    • 88. 发明专利
    • Polyester fiber
    • 聚酯纤维
    • JP2007332500A
    • 2007-12-27
    • JP2006166274
    • 2006-06-15
    • Toyobo Co Ltd東洋紡績株式会社
    • TOTSUKA MORITO
    • D01F8/14B60C9/00D02G3/48
    • D01F8/14D01F1/10D02G3/48
    • PROBLEM TO BE SOLVED: To provide a highly heat-resistant polyester fiber for reinforcing rubber, capable of maintaining the shape at high temperature, especially at a temperature over the melting point of the polyester without reducing the productivity.
      SOLUTION: The core/sheath conjugate polyester fiber having a core-sheath structure is regulated so that the core component may contain a compound having each at least one or more of an epoxy group and an aliphatic unsaturated group wherein the content of the epoxy group is larger than that of the carboxy terminal in the polyester of the core component. A crosslinked structure can be formed at least at a part of the fiber by irradiating the core/sheath conjugate polyester fiber with ionizing radiation.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种能够在不降低生产率的情况下,特别是在聚酯熔点以上的温度下保持高温下的形状的增强橡胶用耐高温聚酯纤维。 解决方案:调整具有芯 - 壳结构的芯/皮复合聚酯纤维,使得芯组分可以含有具有环氧基和脂族不饱和基团中的至少一个或多个的化合物,其中, 环氧基团大于核心组分的聚酯中的羧基末端。 通过用电离辐射照射芯/皮复合聚酯纤维,可以至少在一部分纤维上形成交联结构。 版权所有(C)2008,JPO&INPIT