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    Polyurethane elastomer composition for conveyor belt rolls, and conveyor belt roll produced by employing the urethane composition
    2.
    发明公开
    Polyurethane elastomer composition for conveyor belt rolls, and conveyor belt roll produced by employing the urethane composition 有权
    FörderbandTransportrolle aus聚氨酯弹性体

    公开(公告)号：EP1184397A1

    公开(公告)日：2002-03-06

    申请号：EP01120418.7

    申请日：2001-08-27

    申请人： Tokai Rubber Industries, Ltd.

    发明人： Suzuki, Satoshi ,  Yoshikawa, Hitoshi ,  Wago, Yoshihiro ,  Shiraki, Keita

    IPC分类号： C08G18/48 ,  C08G18/10

    CPC分类号： C08G18/4808 ,  C08G18/12 ,  C08G18/3206

    摘要： A urethane composition for making a sheet transport roll, the composition comprising: (A) a polyether polyol blend containing polytetramethyleneether glycol (PTMG) and polypropylene glycol (PPG) in a weight ratio of PTMG/PPG = 99/1 to 50/50; (B) a polyisocyanate; and (C) a chain lengthening agent; the urethane composition in a cured state having a hardness of not smaller than 40 °, and a crosslinking density of 0.15 to 0.8 mmol/cm 3 or an allophanate bond concentration of 0.03 to 0.07 mmol/g.

    摘要翻译： 用于制造片材输送辊的聚氨酯组合物，所述组合物包含：（A）含有聚四亚甲基醚二醇（PTMG）和聚丙二醇（PPG）的聚醚多元醇共混物，其重量比为PTMG / PPG = 99 / 1-50 / 50; （B）多异氰酸酯; 和（C）链增长剂; 固化状态下的硬度不小于40度，交联密度为0.15至0.8mmol / cm 3或脲基甲酸酯键浓度为0.03至0.07mmol / g的氨基甲酸酯组合物。