Method for joining heat-recoverable sheet material

C - Chemistry – Metallurgy – 09 – J

Patent

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117/25, 400/5182

C09J 7/02 (2006.01) B29C 61/00 (2006.01) B29C 61/10 (2006.01) B32B 27/12 (2006.01) C09J 5/06 (2006.01) C09J 5/10 (2006.01) F16L 47/02 (2006.01) H02G 15/18 (2006.01)

Patent

CA 1117688

ABSTRACT The ends of heat-recoverable polymeric sheet material are joined by overlapping the ends and bonding them together by means of a laminar panel comprising a layer of a cross-linked hot- melt adhesive coated on one surface of a reinforced polymer layer. The panel has a length approximately equal to the width of the sheet material being joined and is disposed, adhesive side down, so that approximately half of its adhesive coated sur- face contacts the sheet material on either side of the line defined by the uppermost of the overlapping ends. The panel is heated to activiate the adhesive and form a secure bond joining the ends. Heat-recoverable sleeve can be made by joining the two ends of a single length of heat-recoverable sheet material.

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