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    • 3. 发明申请
    • Pneumatic Tire
    • 气动轮胎
    • US20080066845A1
    • 2008-03-20
    • US11886309
    • 2006-02-15
    • Humihiro ShiraishiKenichi HattoriTomohiro Kusano
    • Humihiro ShiraishiKenichi HattoriTomohiro Kusano
    • B60C9/18
    • B60C1/00B60C1/0025B60C17/0009B60C2001/0033
    • This invention relates to a pneumatic tire comprising a pair of bead portions (1), a pair of sidewall portions (2), a tread portion (3) continuing to both the sidewall portions (2), a carcass (4) composed of one or more carcass plies toroidally extending between the pair of bead portions and reinforcing these potions and a pair of side reinforcing rubber layers (5) each disposed on an inside of the carcass (4) at the sidewall portion (2), wherein the carcass ply is formed by covering reinforcing cords with a coating rubber and a rubber composition having a loss tangent (tan δ) at 25° C. and 1% strain of not higher than 0.12 is applied to the coating rubber, and/or a rubber composition having a loss tangent (tan δ) at 25° C and 1% strain of not higher than 0.15 is applied to the sidewall portion (2).
    • 本发明涉及一种充气轮胎,其包括一对胎圈部分(1),一对侧壁部分(2),连续两个侧壁部分(2)的胎面部分(3),由一个胎圈部分 或更多的胎体帘布层,其环形地延伸在所述一对胎圈部之间并且加强这些部分,以及一对侧面增强橡胶层(5),每个侧部增强橡胶层(5)在侧壁部分(2)处设置在胎体(4)的内侧,其中胎体帘布层 通过用涂覆橡胶覆盖增强帘线和在25℃下具有损耗角正切(tanδ)和不高于0.12的1%应变的橡胶组合物施加到涂布橡胶上,和/或具有 在侧壁部分(2)上施加25℃的损耗角正切(tanδ)和不高于0.15的1%应变。
    • 4. 发明授权
    • Pneumatic tire having thin tread reinforcing layer embedded in the outermost layer of a tread portion
    • 具有胎面部分最外层的胎面增强层薄的充气轮胎
    • US06736174B2
    • 2004-05-18
    • US09949719
    • 2001-09-12
    • Takumi InoueTomohiro Kusano
    • Takumi InoueTomohiro Kusano
    • B60C100
    • B60C11/00B60C9/00B60C11/005B60C11/24B60C2011/0025Y10T152/10027Y10T152/10513
    • In a pneumatic tire of the present invention, a tread reinforcing rubber layer composed of a rubber having larger tensile modulus of elasticity than that of a rubber composing the tread rubber layer and is less stretchable is provided in a thickness direction central area of a tread rubber layer. Because the tread reinforcing rubber layer diminishes the amount of lateral expansion and the amount of vertical compressive deformation when the tread rubber layer contacts the ground, generation of heat in the tread rubber layer can be suppressed. Therefore, in the present invention, the unique tread structure reliably suppresses heat-generation and the rubber of the tread rubber layer exhibits excellent tire wear resistance. As a result, suppression of heat-generation and high tire resistance can readily be achieved simultaneously.
    • 在本发明的充气轮胎中,在胎面橡胶的厚度方向中心区域设有胎面增强橡胶层,该胎面增强橡胶层由具有比构成胎面橡胶层的橡胶的弹性拉伸弹性大的橡胶构成的伸缩性较小的橡胶, 层。 由于当胎面橡胶层接触地面时,胎面增强橡胶层减小横向膨胀量和垂直压缩变形量,因此可以抑制胎面胶层中的热量产生。 因此,在本发明中,独特的胎面结构可靠地抑制发热,并且胎面橡胶层的橡胶表现出优异的耐轮胎耐磨性。 结果,可以容易地同时实现发热的抑制和高耐轮胎性。
    • 6. 发明申请
    • Pneumatic tire
    • 气动轮胎
    • US20070221310A1
    • 2007-09-27
    • US11798841
    • 2007-05-17
    • Kenichi HattoriKentarou MitsuiTomohiro Kusano
    • Kenichi HattoriKentarou MitsuiTomohiro Kusano
    • B60C9/00
    • C08C19/28B60C1/00C08F253/00C08L19/006C08L21/00C08L51/04Y02T10/862C08L2666/08C08L2666/02
    • A pneumatic tire which offers extremely excellent durability through inclusion of a belt portion composed of a rubber composition having excellent reinforcing properties, high hardness, low heat build-up properties, excellent deterioration resistance, and excellent adhesiveness to steel cords, wherein the rubber composition contains a natural rubber prepared by graft polymerizing a natural rubber latex with a polar group-containing monomer, and solidifying and drying the resulting product. A pneumatic tire which offers excellent rolling resistance through inclusion of a ply coating rubber, squeegee rubber, or tie rubber composed of a rubber composition containing a modified natural rubber prepared by graft polymerizing a natural rubber latex with a polar group-containing monomer, and solidifying and drying the resulting product.
    • 一种充气轮胎,其通过包括由具有优异的增强性能,高硬度,低发热性能,优异的耐劣化性和对钢丝帘线的优异粘合性的橡胶组合物构成的带部分而提供极好的耐久性,其中橡胶组合物含有 天然橡胶,其通过将天然橡胶胶乳与含极性基团的单体接枝聚合制备,并固化并干燥所得产物。 一种充气轮胎,其通过包含由包含通过将天然橡胶胶乳与含极性基团的单体接枝聚合制备的改性天然橡胶的橡胶组合物组成的层状涂层橡胶,橡胶刮板橡胶或粘合橡胶提供优异的滚动阻力,并且固化 并干燥所得产物。