发明名称 |
METHOD FOR MINE SUPPORT AND COMPOSITION |
摘要 |
A method and composition for providing gas- impermeable, adherent, flexible, and fire retardant coatings to rock and the like surfaces whereby the rock is supported by the caisson effect and mechanical strength properties of the coatings. The method comprises spraying a two-component polymer such as polyurethane onto a rock surface and spraying a layer of inorganic particulate material such as unexfoliated vermiculite onto the said coating of polymer with or without concurrent application of further layers of said polymer before completion of curing of the coating whereby the particulate material adheres to the polymer. An aqueous dispersion of inorganic particulate material such as vermiculite which may be in the exfoliated form can be applied onto the coating.
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申请公布号 |
CA2085607(C) |
申请公布日期 |
2003.08.19 |
申请号 |
CA19912085607 |
申请日期 |
1991.06.19 |
申请人 |
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发明人 |
MAINE, FRANK;CALDER, PETER;ARCHIBALD, JAMES |
分类号 |
C04B41/48;C04B41/52;C04B41/63;C04B41/70;E21D11/38;(IPC1-7):C09D175/04;E04B1/94 |
主分类号 |
C04B41/48 |
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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