发明名称 |
Lining sewer pipe with centrifugally applied polyurethane foam |
摘要 |
Sewer pipe is sealed by lining its inner surface with a directly applied multicomponent resin mixt., esp. a hardenable two-component polyurethane resin (2), following which an additional sealing and harder resin coating is formed by an epoxy resin system.
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申请公布号 |
CH678651(A5) |
申请公布日期 |
1991.10.15 |
申请号 |
CH19890001212 |
申请日期 |
1989.04.03 |
申请人 |
A. KAEPPELI'S SOEHNE AG |
发明人 |
ZUEST, HARRY, DR.;KAEPPELI, GUIDO, DR. |
分类号 |
F16L55/1645 |
主分类号 |
F16L55/1645 |
代理机构 |
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代理人 |
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主权项 |
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