Ethylene-propylene-diene rubber foam, and sealing material
    42.
    发明专利
    Ethylene-propylene-diene rubber foam, and sealing material 有权
    乙烯 - 丙烯 - 丁二烯橡胶泡沫和密封材料

    公开(公告)号:JP2013079366A

    公开(公告)日:2013-05-02

    申请号:JP2012186696

    申请日:2012-08-27

    Abstract: PROBLEM TO BE SOLVED: To provide an ethylene-propylene-diene rubber foam capable of reducing corrosiveness and improved in heat-resistive sealability, and to provide a sealing material having the same.SOLUTION: A rubber composition containing an ethylene-propylene-diene rubber is foamed to obtain the ethylene-propylene-diene rubber foam having a compression set of ≤30% at 24 hours after being compressed by 50% at 80°C for 22 hours and then released at 23°C, and a content proportion of a sulfur atom of ≤1,000 ppm in terms of mass as calculated based on a measurement result by fluorescent X-ray measurement. The sealing material is obtained which has the ethylene-propylene-diene rubber foam, and an adhesive layer provided on at least one surface of the ethylene-propylene-diene rubber foam.

    Abstract translation: 要解决的问题:提供能够降低腐蚀性和提高耐热密封性的乙烯 - 丙烯 - 二烯橡胶发泡体,并提供具有这种密封材料的密封材料。 解决方案:将含有乙烯 - 丙烯 - 二烯橡胶的橡胶组合物发泡,得到在80℃下压缩50%后24小时压缩永久变形率为30%的乙烯 - 丙烯 - 二烯橡胶发泡体, 22小时,然后在23℃下放出,并且基于通过荧光X射线测量的测量结果计算出的质量换算的硫原子的含量比例≤1000ppm。 得到具有乙烯 - 丙烯 - 二烯橡胶泡沫的密封材料和设置在乙烯 - 丙烯 - 二烯橡胶泡沫的至少一个表面上的粘合层。 版权所有(C)2013,JPO&INPIT

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