| 摘要 |
A sealing element for attachment to a door, window or other structure comprises a resilient foam core enveloped by a wrap-around outer cover having a flexible portion and a relatively rigid portion for attaching the seal to another structure. The cover has opposite edges which are configured to lock together so as to contain the foam core. The seal may be produced by coextruding the portions of the cover, partially shaping the cover, laying in foamable core material, further shaping the cover, locking the edges of the cover together and causing the core material to foam within the interior of the thus-closed cover.
|
