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    • 123. 发明申请
    • PNEUMATIC TIRE
    • 气动轮胎
    • US20100288406A1
    • 2010-11-18
    • US12810774
    • 2009-02-13
    • Takamasa KitamuraShigeki ItoKenichi KitanoTakeshi Inohara
    • Takamasa KitamuraShigeki ItoKenichi KitanoTakeshi Inohara
    • B60C11/00
    • C08L7/00B60C1/0016B60C11/14B60C2011/0025C08J9/32C08J2203/22C08J2307/00C08J2309/00C08K3/04C08K3/36C08K5/548C08K7/22C08K9/10C08L9/00C08L21/00C08L2666/08
    • Provided is a pneumatic tire whose frictional force on ice is improved by satisfactorily forming resin-encapsulated cells from heat-expandable microcapsules, even when a tread rubber contains silica. The tire is characterized in that: the tread rubber is made of a rubber composition containing 100 parts by weight of a diene rubber, 30 to 100 parts by weight of a reinforcing filler including at least 10 parts by weight of silica, and 1 to 20 parts by weight of microcapsules each encapsulating a heat-expandable substance; a sulfur-containing silane coupling agent is mixed in the rubber composition in an amount of 3 to 15 wt. % based on the weight of the silica; a shell material of each microcapsule is made of a thermoplastic resin which essentially contains a nitrile monomer (I); a vapor pressure of the heat-expandable substance is set at 1.4 to 3.0 MPa at 150° C.; an average particle diameter of the microcapsules is set at 20 to 30 μm before vulcanization of the rubber composition; an average particle diameter of the microcapsules expanded due to the vulcanization is set at 40 to 80 μm; and thus, a proportion of an area occupied by the cells in the tread rubber is set at 5 to 30%.
    • 本发明提供一种充气轮胎,即使在胎面橡胶含有二氧化硅的情况下,也可以通过令人满意地形成来自热膨胀性微胶囊的树脂封装的细胞来提高冰上的摩擦力。 轮胎的特征在于:胎面橡胶由含有100重量份二烯橡胶的橡胶组合物制成,30至100重量份的包含至少10重量份二氧化硅的增强填料和1至20重量份 每个包封热膨胀物质的微胶囊重量份; 将含硫硅烷偶联剂在橡胶组合物中以3〜15重量%的量混合。 基于二氧化硅的重量% 每个微胶囊的壳材料由基本上含有腈单体(I)的热塑性树脂制成; 在150℃下将热膨胀性物质的蒸气压设定为1.4〜3.0MPa。 在橡胶组合物硫化之前,将微胶囊的平均粒径设定为20〜30μm。 将由于硫化而膨胀的微胶囊的平均粒径设定为40〜80μm, 因此胎面胶中的细胞所占的面积的比例为5〜30%。
    • 124. 发明授权
    • Tire with circumferential rubber tread having a lateral outboard control element
    • 具有周向橡胶胎面的轮胎具有侧向外侧控制元件
    • US07789117B2
    • 2010-09-07
    • US11651133
    • 2007-01-09
    • Aaron Scott PuhalaRachel Rebekah BarnetteDavid Charles PolingEric John MarazziKuo-Chih HuaShingo Futamura
    • Aaron Scott PuhalaRachel Rebekah BarnetteDavid Charles PolingEric John MarazziKuo-Chih HuaShingo Futamura
    • B60C1/00B60C11/00
    • B60C1/0016B60C11/005B60C11/0058B60C11/0066B60C11/14B60C2011/0025C08L9/00C08L9/06C08L19/006C08L2666/02
    • The invention relates to a tire having a circumferential tread of a cap/base configuration composed of an outer tread rubber cap layer with a running surface of the tread and an underlying tread rubber base layer, wherein said tread cap layer is composed of two longitudinal adjacent zones, namely a primary tread cap zone and a minor lateral outboard control element (zone). The primary tread cap zone and the lateral outboard tread cap element provide a significant gradation of cold dynamic storage moduli (G′) at −25° C. and hot tan delta values at 100° C., yet similar warm dynamic storage moduli (G′) at 60° C. The primary tread cap zone and lateral outboard control tread cap element are load bearing in the sense of extending from the running surface of the tread radially inward to the unitary (non-zoned) tread base rubber layer. The zoned rubber tread cap layer and unitary rubber tread base layer are an integral tread composite in a sense of being co-extruded. In one aspect of the invention, the primary tread cap zone rubber composition is silica-rich and the lateral, outboard element rubber composition is carbon black-rich and which furthermore provide a gradation of filler reinforcement content; provide a gradation of silica to carbon black ratio and provide a gradation of cis 1,4-polybutadiene rubber content.
    • 本发明涉及一种轮胎,其具有由具有胎面的行进表面的外胎面橡胶帽层和下面的胎面橡胶基层组成的帽/底座构造的圆周胎面,其中所述胎冠盖层由两个纵向相邻 区域,即主胎面区域和小侧向外侧控制元件(区域)。 主要胎冠区域和侧向外侧胎面花纹块元件在-25℃下提供了显着的冷动态储存模量(G')和100℃下的热tanδ值,而类似的热动态储存模量(G ')在60℃。主胎面区域和侧向外侧控制踏板元件是从胎面的行进表面径向向内延伸到整体(未分区的)胎面基底橡胶层的意义上的负载轴承。 划分的橡胶胎冠层和整体橡胶胎面基层是共挤出的整体胎面复合材料。 在本发明的一个方面,一次胎面胎面橡胶组合物是二氧化硅富集的,并且外侧的外侧元件橡胶组合物是富含炭黑的,并且还提供填料增强含量的等级。 提供二氧化硅与炭黑的比例,并提供顺式1,4-聚丁二烯橡胶含量的等级。
    • 128. 发明申请
    • Apparatus for friction enhancement of curved surfaces
    • 用于曲面摩擦增强的装置
    • US20070289696A1
    • 2007-12-20
    • US11657431
    • 2007-01-23
    • Steven JonesRonald Fearing
    • Steven JonesRonald Fearing
    • B60C11/00
    • B60C11/00B29D30/66B29D2030/665B60C1/0016B60C11/14C08K7/02C08K2201/011Y10T156/10Y10T428/23929Y10T428/23936Y10T428/23943Y10T428/23957Y10T428/24628C08L21/00
    • A tire has a curved tire surface and a nano-scale structure disposed on a portion of the curved tire surface. A contact patch on the curved tire surface contacts a contact surface as the tire rolls along the contact surface. The nano-scale structure has a base and a tip. The base is connected to the portion of the curved tire surface. The tip is disposed opposite the base. When the portion of the curved tire surface with the nano-scale structure is positioned away from the contact patch, the nano-scale structure is in a relaxed position. When the portion of the curved tire surface is rotated into the contact patch, the nano-scale structure is engaged with the contact surface. When the portion of the curved tire surface is rotated through the contact patch, the nano-scale structure is adhesively anchored to the contact surface with the nano-scale structure undergoing tension and compression. When the portion of the curved tire surface is rotated through the contact patch to leave the contact patch, the nano-scale structure is released from the contact surface as an angle between the base and tip surpasses a release angle for the nano-scale structure.
    • 轮胎具有弯曲轮胎表面和设置在弯曲轮胎表面的一部分上的纳米级结构。 当轮胎沿着接触表面滚动时,弯曲轮胎表面上的接触片接触接触表面。 纳米级结构具有基部和尖端。 基座连接到弯曲轮胎表面的一部分。 尖端设置在底座的对面。 当具有纳米级结构的弯曲轮胎表面的部分定位成远离接触片时,纳米级结构处于松弛位置。 当弯曲轮胎表面的部分旋转到接触片中时,纳米级结构与接触表面接合。 当弯曲轮胎表面的部分通过接触片旋转时,纳米级结构被粘附地锚定到具有经受张力和压缩的纳米级结构的接触表面。 当弯曲轮胎表面的部分通过接触片旋转离开接触片时,纳米级结构从接触表面释放,因为基部和尖端之间的角度超过了纳米级结构的释放角度。