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    • 65. 发明申请
    • NITRILE RUBBER COMPOSITION
    • NITRILE橡胶组合物
    • US20160152790A1
    • 2016-06-02
    • US14904268
    • 2014-06-18
    • NOK CORPORATION
    • Hiromitsu YamotoEiji KomiyaYuichi AoyagiTomonori FurukawaTomohiro Kaise
    • C08K3/04F16C33/82F16C33/76C08K5/40C08K5/13
    • C08K3/04C08K5/13C08K5/40C08K2201/003C08K2201/014C08L9/02
    • A nitrile rubber composition comprising 5 to 50 parts by weight of carbon black, 5 to 60 parts by weight of graphite having an average particle diameter of 5 μm or less, 5 to 50 parts by weight of conductive carbon other than these carbon black and graphite, and 0.5 to 3.5 parts by weight of 2,5-di-tert-butylhydroquinone or 2,5-di-tert-amylhydroquinone as an antioxidant, based on 100 parts by weight of nitrile rubber. The nitrile rubber composition can yield a vulcanization molded product, besides maintaining characteristics as a conductive material, satisfying muddy water resistance, sealing properties, and low torque characteristics required for rolling bearing oil seals for vehicles, etc., and having a rubber volume change kept low when the product is washed with water after exposure to an antifreezing agent.
    • 一种腈橡胶组合物,其包含5至50重量份的炭黑,5至60重量份的平均粒径为5μm或更小的石墨,5至50重量份的除了这些炭黑和石墨之外的导电碳 ,和0.5〜3.5重量份的作为抗氧化剂的2,5-二叔丁基氢醌或2,5-二叔戊基氢醌,基于100重量份的丁腈橡胶。 丁腈橡胶组合物除了保持作为导电材料的特性外,还可以得到硫化成型品,满足车辆用滚动轴承油封等所需的耐水泥性,密封性,低扭矩特性,并且保持橡胶体积变化 当暴露于防冻剂后,产品用水洗涤时为低。