| 摘要 |
HEAT RECOVERABLE ARTICLE 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 or fabric, provided with upstanding rails as a first closure means. A heating element is embedded in the sheet, and arranged to follow a serpentine path such that each return loop protion projects beyond the edges of the cover. The sheet is coated on its inner surface with a layer of adhesive and/or sealant In use, the cover is wrapped around a substrate at least once, and first and second closure means 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. |
