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    • 9. 发明授权
    • Diene polymers having reduced hysteresis and improved raw viscosity
incorporating primary partial coupling and fused-ring polynuclear
aromatic terminators
    • 二烯聚合物具有降低的滞后和改进的原始粘度,其中包含初级部分偶联和稠环多核芳族终止子
    • US5210144A
    • 1993-05-11
    • US812172
    • 1991-12-20
    • David F. LawsonMark L. Stayer, Jr.Thomas A. Antkowiak
    • David F. LawsonMark L. Stayer, Jr.Thomas A. Antkowiak
    • C08C19/44
    • C08C19/44
    • Diene polymers or copolymers having improved raw polymer viscosity and reduced hysteresis in the cured and carbon black reinforced state are provided. These diene polymers or copolymers comprise a mixture of diene polymer or copolymer chains containing carbon-tin bonds in the main polymer or copolymer chains and diene polymer or copolymer chains containing terminals derived from fused-ring polynuclear aromatic compounds.The diene polymer or copolymers are prepared by first coupling a portion of the living diene polymer or copolymer chains obtained by anionic polymerization using a tin polyhalide coupling agent and then terminating the remaining living diene polymer or copolymer chains using fused-ring polynuclear aromatic compounds. The resultant diene polymers or copolymers have improved raw polymer viscosity and when compounded with carbon black and cured have reduced hysteresis properties. The polymers can be utilized to form elastomer compositions for tire treads having reduced rolling resistance.
    • 提供了在固化和炭黑增强状态下具有改进的原料聚合物粘度和降低的滞后的二烯聚合物或共聚物。 这些二烯聚合物或共聚物包含在主聚合物或共聚物链中含有碳 - 锡键的二烯聚合物或共聚物链的混合物,以及含有衍生自稠环多核芳族化合物的末端的二烯聚合物或共聚物链。 二烯聚合物或共聚物是通过首先将一部分活性二烯聚合物或通过阴离子聚合得到的共聚物链与多卤化锡偶联剂偶联,然后使用稠环多核芳族化合物终止剩余的活性二烯聚合物或共聚物链来制备的。 所得二烯聚合物或共聚物具有改善的原始聚合物粘度,并且当与炭黑复合并固化时具有降低的滞后性能。 聚合物可用于形成具有降低的滚动阻力的轮胎胎面的弹性体组合物。