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    • 2. 发明申请
    • 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
    • US20070175557A1
    • 2007-08-02
    • 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
    • B60C11/00
    • 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(非分区)胎面基底橡胶层的意义上的承载轴承。 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。