Patch closure system

Details Patch closure system Patch closure system

1984-09-15

1985-08-06

Herbert, Thomas J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

138 99, 138156, 138161, 156 86, 156668, 428 57, 428 63, 428343, 428349, 428913, B29C 2700, B32B 326, C09J 702

Patent

active

045334196

ABSTRACT:
A patch closure system for joining heat recoverable sheet material, especially for covering a substrate where the joined material is to be recovered around the substrate, comprises a layer of adhesive on one surface, a part of which is a pressure-sensitive adhesive and the remainder of which is a heat-activatable adhesive. The pressure-sensitive adhesive layer is of such an area and is placed such that, when the patch is placed over the overlap between the edges of the heat recoverable sheet material, the patch will continue to cover the overlap when the sheet material is recovered, even if the heat-activatable adhesive layer has not been used to attach the patch to the sheet material.

REFERENCES:
patent: 2975091 (1961-03-01), Tobey
patent: 3379218 (1968-04-01), Conde
patent: 3455336 (1969-07-01), Ellis
patent: 3530898 (1970-09-01), Wilson
patent: 3542077 (1970-11-01), Muchmore
patent: 3574313 (1971-04-01), Tanaka
patent: 3677845 (1972-07-01), Roberts
patent: 3770556 (1973-11-01), Evans et al.
patent: 4200676 (1980-04-01), Caponigro et al.

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