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    • 45. 发明授权
    • Viscoelastic silicone rubber compositions
    • 粘弹性硅橡胶组合物
    • US09102799B2
    • 2015-08-11
    • US14336304
    • 2014-07-21
    • Louis A. Bloomfield
    • Louis A. Bloomfield
    • C08G77/56C08G77/16C08L83/04C08L83/14C08G101/00
    • C08G77/56C08G77/16C08G2101/0016C08K3/38C08K5/5415C08K5/5419C08K5/55C08K2003/387C08K2201/002C08L83/00C08L83/04C08L83/14
    • This invention relates to viscoelastic silicone rubber compositions that are the products of the reaction of: (a) a silanol-terminated polyorganosiloxane base; (b) a boron-containing crosslinking agent; and (c) a siloxane bond-forming crosslinking agent. In a viscoelastic silicone rubber composition of the invention some of the crosslinks, the siloxane crosslinks, are permanent and others of the crosslinks, the boron-containing crosslinks, are temporary. Because a fraction of its crosslinks can come apart and then reform, a viscoelastic silicone rubber composition of the invention can relax stress in response to strain and thus adapt to new shapes. The composition has sufficient permanent crosslinks, however, to establish a permanent equilibrium shape to which the composition will eventually return when not subject to any imposed stress. A viscoelastic silicone rubber composition has sufficient temporary crosslinks to give the composition a stiffness that is greater on short timescales than it is on longer timescales.
    • 本发明涉及粘弹性硅橡胶组合物,其是以下反应产物:(a)硅烷醇封端的聚有机硅氧烷基; (b)含硼交联剂; 和(c)形成硅氧烷键的交联剂。 在本发明的粘弹性硅橡胶组合物中,一些交联,硅氧烷交联是永久性的,其它交联,含硼交联是暂时的。 由于其交联部分的分数可以分开然后改性,本发明的粘弹性硅橡胶组合物可以缓和应变的应力,从而适应新的形状。 然而,组合物具有足够的永久性交联,以建立永久平衡形状,组合物将在不受任何施加的应力的情况下最终返回。 粘弹性硅橡胶组合物具有足够的临时交联,以使组合物在短的时间尺度上比在较长的时间尺度上更大的刚度。
    • 47. 发明申请
    • RUBBER COMPOSITION, CROSS-LINKED RUBBER COMPOSITION, AND TIRE
    • 橡胶组合物,交联橡胶组合物和轮胎
    • US20140213695A1
    • 2014-07-31
    • US14238899
    • 2012-08-31
    • Kouichi SaitouKeiichi AomatsuMasaki Yanagioka
    • Kouichi SaitouKeiichi AomatsuMasaki Yanagioka
    • C08K7/26
    • C08K7/26B60C1/0016C08K3/36C08K2201/002C08K2201/003Y02T10/862C08L21/00
    • An object of the present invention is to provide: a rubber composition which, when it is applied to a component member (such as a tread) of a tire, exhibits good wear resistance without deteriorating rolling resistance of the tire; a cross-linked rubber composition obtained by cross-linking the rubber composition; and a tire using the rubber composition or the cross-linked rubber composition as a material thereof. Specifically, the present invention provides a rubber composition obtained by blending and kneading a rubber component and hydrated silica together, characterized in that: provided that D represents the average primary particle diameter and LP represents the log differential pore volume at a pore diameter of 30 nm, of the hydrated silica in the rubber composition, D and LP satisfy relationships represented by following formulae (1) and (2). LP>−0.045×D+1.45  (1) D
    • 本发明的目的在于提供一种橡胶组合物,其在施加到轮胎的构成部件(胎面)时表现出良好的耐磨性,而不会降低轮胎的滚动阻力; 通过交联橡胶组合物得到的交联橡胶组合物; 以及使用橡胶组合物或交联橡胶组合物作为其材料的轮胎。 具体地说,本发明提供了通过将橡胶成分和水合二氧化硅共混并捏合而得到的橡胶组合物,其特征在于:D表示平均一次粒径,LP表示孔径为30nm的对数微分孔体积 的橡胶组合物中的水合二氧化硅,D和LP满足由下式(1)和(2)表示的关系。 LP> -0.045×D + 1.45(1)D <30nm(2)