发明名称 |
BALLAST AND PROCESS FOR THE PRODUCTION OF BALLAST |
摘要 |
The present invention relates to ballast bodies and to a method for production of ballast bodies in track and road construction as well as dyke construction, which have high stability and a long useful life, composed of ballast stones and polyurethane foam materials based on a reaction mixture of selected polyisocyanates and selected compounds with groups which can react with isocyanate groups. |
申请公布号 |
CA2637528(C) |
申请公布日期 |
2014.09.02 |
申请号 |
CA20072637528 |
申请日期 |
2007.01.12 |
申请人 |
BAYER MATERIALSCIENCE AG |
发明人 |
HOFFMANN, ANDREAS;EBERT, HEINZ-DIETER;KLESCZEWSKI, BERT |
分类号 |
E01B1/00;C08G18/48;E02B1/00 |
主分类号 |
E01B1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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