Coated recoverable articles

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B - Operations, Transporting

29

C

154/143

B29C 65/40 (2006.01) B29C 61/06 (2006.01) F16L 47/00 (2006.01) F16L 59/20 (2006.01)

Patent

CA 1218005

ABSTRACT COATED RECOVERABLE ARTICLES A recoverable polymeric material is coated with discrete regions of a sealant, such as a mastic, and of a heat-activatable adhesive, such as a hot-melt adhesive. The coated material forms a sleeve which may be of tubular or wrap-around configuration. The sleeve may be used to cover weld joints in polyethylene coated steel pipes. The sealant ensures a flexible water-proof seal around the weld and the adhesive provides a second seal and prevents any long range movement between the sleeve and the pipe.

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