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    SEALING A SUBSTRATE USING A RECOVERABLE SLEEVE
    2.
    发明专利
    SEALING A SUBSTRATE USING A RECOVERABLE SLEEVE 未知

    公开(公告)号：GB2127519A

    公开(公告)日：1984-04-11

    申请号：GB8325896

    申请日：1983-09-28

    Applicant: RAYCHEM CORP

    Inventor： MOLINARI ROBERT JAMES ,  CHANDLER DANIEL ALAN ,  CHAN CHI-MING

    IPC: B29C61/06 ,  B29C63/42 ,  B32B7/04 ,  F16L58/10

    Abstract: Pipes (5) and other substrates exposed to or submerged in water can be protected by coating them with a corrosion protection sealing material and subjecting the material during or after it has been applied to the substrate to pressure applied progressively. The pressure is provided by progressive recovery of a sleeve as it is released from a holdout (1) which holds it in a recoverable configuration. The progressive recovery can be, for example, from one end of the sleeve to the other or from the center of the sleeve outwards to each end. The progressive shrinkage can be achieved, for example, by use of an external holdout which releases an inner expanded sleeve when contacted with solvent around the circumference of the sleeve commencing at one end of the sleeve and continuing along the sleeve to the other end.

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