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 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|