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公开(公告)号：EP0158519A3
公开(公告)日：1988-04-13
申请号：EP85302395
申请日：1985-04-04
申请人： N.V. RAYCHEM S.A.
CPC分类号： B29C66/1122 , B29C61/0625 , B29C61/10 , B29C65/3428 , B29C65/3452 , B29C65/3468 , B29C65/348 , B29C65/68 , B29C66/1142 , B29C66/1312 , B29C66/24221 , B29C66/5326 , B29C66/71 , B29C66/729 , B29C66/7294 , B29C66/91221 , B29C66/91411 , B29C66/91431 , B29C66/91641 , B29C66/91655 , B29C66/961 , B29L2009/00 , H02G15/1813 , Y10S174/08 , Y10T428/1328 , Y10T428/1331 , Y10T428/24777 , Y10T428/28 , B29K2023/06
摘要： The invention relates to a heat-recoverable covers which comprise embedded electrical resistance heaters, and to methods of covering an elongate object using such covers. In a preferred embodiment, the cover comprises a heat-recoverable polymeric sheet (22) or fabric, provided with upstanding rails (24,25) as a first closure means. A heating element (36) is embedded in the sheet, and arranged to follow a serpentine path such that each return loop protion 38 projects beyond the edges of the cover. The sheet is coated on its inner surface with a layer of adhesive and/or sealant (28,30). In use, the cover is wrapped around a substrate (32) at least once, and first and second closure means (24,25 and 26,27) are engaged to hold the cover in the wrapped configuration. The cover is then heated to cause the cover to recover, and the adhesive and/or sealant to form a seal.
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公开(公告)号：EP0158519B1
公开(公告)日：1992-09-30
申请号：EP85302395.0
申请日：1985-04-04
申请人： N.V. RAYCHEM S.A.
CPC分类号： B29C66/1122 , B29C61/0625 , B29C61/10 , B29C65/3428 , B29C65/3452 , B29C65/3468 , B29C65/348 , B29C65/68 , B29C66/1142 , B29C66/1312 , B29C66/24221 , B29C66/5326 , B29C66/71 , B29C66/729 , B29C66/7294 , B29C66/91221 , B29C66/91411 , B29C66/91431 , B29C66/91641 , B29C66/91655 , B29C66/961 , B29L2009/00 , H02G15/1813 , Y10S174/08 , Y10T428/1328 , Y10T428/1331 , Y10T428/24777 , Y10T428/28 , B29K2023/06
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公开(公告)号：EP0158519A2
公开(公告)日：1985-10-16
申请号：EP85302395.0
申请日：1985-04-04
申请人： N.V. RAYCHEM S.A.
CPC分类号： B29C66/1122 , B29C61/0625 , B29C61/10 , B29C65/3428 , B29C65/3452 , B29C65/3468 , B29C65/348 , B29C65/68 , B29C66/1142 , B29C66/1312 , B29C66/24221 , B29C66/5326 , B29C66/71 , B29C66/729 , B29C66/7294 , B29C66/91221 , B29C66/91411 , B29C66/91431 , B29C66/91641 , B29C66/91655 , B29C66/961 , B29L2009/00 , H02G15/1813 , Y10S174/08 , Y10T428/1328 , Y10T428/1331 , Y10T428/24777 , Y10T428/28 , B29K2023/06
摘要： The invention relates to a heat-recoverable covers which comprise embedded electrical resistance heaters, and to methods of covering an elongate object using such covers.
In a preferred embodiment, the cover comprises a heat-recoverable polymeric sheet (22) or fabric, provided with upstanding rails (24,25) as a first closure means. A heating element (36) is embedded in the sheet, and arranged to follow a serpentine path such that each return loop protion 38 projects beyond the edges of the cover. The sheet is coated on its inner surface with a layer of adhesive and/or sealant (28,30).
In use, the cover is wrapped around a substrate (32) at least once, and first and second closure means (24,25 and 26,27) are engaged to hold the cover in the wrapped configuration. The cover is then heated to cause the cover to recover, and the adhesive and/or sealant to form a seal.
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