发明名称 Pipe liner laminate and method of making a pipe with said liner
摘要 A piper liner laminate and method of making a pipe including this liner are disclosed herein. The liner comprises a central layer preferably of either polyethylene or polypropylene sandwiched between first and second layers of fibrous material, for example polyester mat, which are laminated together preferably by a mechanical bond. Constructed in this manner, the liner, which is especially suitable for sewer pipe, provides a reliable barrier preventing corrosive chemicals from penetrating therethrough and into the wall of the pipe.
申请公布号 US4081303(A) 申请公布日期 1978.03.28
申请号 US19760689698 申请日期 1976.05.24
申请人 JOHNS-MANVILLE CORPORATION 发明人 ROGERS, PHILIP A.;HERR, JOHN F.
分类号 B32B1/08;F16L58/16;(IPC1-7):B32B1/08;B31C13/00 主分类号 B32B1/08
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