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    • 2. 发明授权
    • Vibration dampening compositions and methods thereof
    • 减震组合物及其方法
    • US06521704B1
    • 2003-02-18
    • US09592702
    • 2000-06-13
    • Steven F. HubbardSai-Pei Ting
    • Steven F. HubbardSai-Pei Ting
    • C08L5100
    • C08L71/123C08L77/00C08L81/02C08L101/00C08L2666/02C08L2666/04
    • The present invention relates to methods to improve the dampening characteristics of compositions and the improved compositions. The compositions made by the method comprises (a) a polymer system selected from the group consisting of immiscible polymer blends, miscible polymer blends, copolymers, thermoplastic polymers and thermosetting polymers, and (b) a block copolymer comprising: (i) at least one block derived from aromatic vinyl units and (ii) at least one block derived from at least isoprene and a vinyl aromatic monomer and optionally butadiene, and having a glass transition temperature of at least 10° C. In a preferred embodiment, the block copolymer comprises at least one block of polystyrene and at least one block derived from isoprene, styrene and butadiene, and the polymer system comprises at least one polyamide resin.
    • 本发明涉及改善组合物和改进组合物的润湿特性的方法。 通过该方法制备的组合物包含(a)选自不混溶聚合物共混物,可混溶聚合物共混物,共聚物,热塑性聚合物和热固性聚合物的聚合物体系,和(b)嵌段共聚物,其包含:(i)至少一种 衍生自芳族乙烯基单元的嵌段和(ii)至少一种衍生自异戊二烯的嵌段和乙烯基芳族单体和任选的丁二烯,并且玻璃化转变温度至少为10℃。在优选的实施方案中,嵌段共聚物包含 至少一块聚苯乙烯和至少一个衍生自异戊二烯,苯乙烯和丁二烯的嵌段,聚合物体系包含至少一种聚酰胺树脂。