| 摘要 |
<p>A heat-recoverable wrap-around sleeve for pipe protection, with a patch-type closure. The patch is heat-stable and comprises two polymeric layers (4,6) bonded together through, for example, an open mesh glass-fibre fabric (8). No separate adhesive is required. The hot modulus of one of the layers is low enough to enable it to bond to the overlapping edges of the wrap-around sleeve, and the hot modulus of the other layer is high enough to withstand installation temperature. This new patch is easier to install and requires less materials than prior art patches, and does not need to be bonded to the sleeve in such a distinct heating step.</p> |
