发明名称 |
Surface protection for porous materials |
摘要 |
An improvement in the waterproofing of a shaped article having a porous surface by initially subjecting said surface to a hydromechanical treatment by impinging cold or hot water or steam under pressure thereon and thereafter impregnating the same with a liquid form organo silicon compound, said improvement comprising treating the surface with a basically acting substance before or during the impregnation.
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申请公布号 |
US4073972(A) |
申请公布日期 |
1978.02.14 |
申请号 |
US19760707930 |
申请日期 |
1976.07.22 |
申请人 |
DYNAMIT NOBEL AKTIENGESELLSCHAFT |
发明人 |
NESTLER, HEINZ;PLANKL, LEO HANS |
分类号 |
C04B41/62;C04B41/49;C04B41/64;C04B41/84;(IPC1-7):B05D3/12;B05D1/36;B05D3/10 |
主分类号 |
C04B41/62 |
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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