Heat-recoverable sheet for use as protective closure

Details Heat-recoverable sheet for use as protective closure Heat-recoverable sheet for use as protective closure

1985-08-19

1987-10-13

Welsh, J. David

Stock material or miscellaneous articles

Structurally defined web or sheet

Edge feature

428 36, 156 85, 156 86, B32B 306

Patent

active

046998217

ABSTRACT:
A heat-recoverable sheet is provided having two opposing exterior transverse edges and interior edges transverse to the direction of recovery of the sheet extending from one of said exterior edges. When the heat-recoverable sheet is coated on one face thereof with a hot-melt adhesive and used as a wrap-around protective closure with the interior edges and the hot-melt adhesive enveloped within the closure, the movement of the enclosed exterior edge during recovery is retarded to minimize the formation of any void spaces in the hot-melt adhesive.

REFERENCES:
patent: 3770556 (1973-11-01), Evans et al.
patent: 4018733 (1977-04-01), Lopez et al.
patent: 4442153 (1984-04-01), Meltsch
patent: 4448824 (1984-05-01), Holmes et al.
patent: 4586971 (1986-05-01), Wallace

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