Method for joining heat-recoverable sheet material and resulting

Details Method for joining heat-recoverable sheet material and resulting Method for joining heat-recoverable sheet material and resulting

1979-11-01

1982-11-16

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

20415917, 428192, 428245, 428246, 428343, 428345, 428354, 428355, B32B 700, B32B 710

Patent

active

043595022

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 crosslinked hot-melt adhesive coated on one surface of a reinforced polymer layer. The panel has a width approximately that of the sheet material being joined. The panel is disposed, adhesive side down, so that approximately half of its adhesive coated surface contacts the sheet material on either side of the line defined by the uppermost of the overlapping ends. The panel is heated to activate the adhesive and form a secure bond joining the ends. Heat-recoverable sleeves can be made by joining the opposing ends of a single length of heat-recoverable sheet material.

REFERENCES:
patent: 3086242 (1963-04-01), Cook
patent: 3770556 (1973-11-01), Evans et al.
patent: 4087505 (1978-05-01), Sugimoto et al.
patent: 4127545 (1978-11-01), Callon et al.
patent: 4146512 (1979-03-01), Weaver et al.
patent: 4181775 (1980-01-01), Corke
patent: 4199646 (1980-04-01), Hori et al.

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