发明名称 |
Ballast body and method for production of ballast bodies |
摘要 |
The present invention relates to ballast which have a high stability and a long service life and to a process for the production of ballast. These ballast are suitable for railway track laying and road construction and dike systems used for example in costal protection. These ballast comprise ballast stones and polyurethane foams based on a reaction mixture of selected polyisocyanates and selected compounds with isocyanate-reactive groups. |
申请公布号 |
ZA200806134(B) |
申请公布日期 |
2009.10.28 |
申请号 |
ZA20080006134 |
申请日期 |
2008.07.15 |
申请人 |
BAYER MATERIALSCIENCE AG |
发明人 |
HOFFMANN, ANDREAS;EBERT, HEINZ-DIETER;KLESCZEWSKI, BERT |
分类号 |
C08G;E01B;E02B |
主分类号 |
C08G |
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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