Transfer adhesive sandwich for applying adhesive to substrates

Claim 1

A pad of adhesive sandwiches stacked on top of one another and intended for applying adhesive to substrates having a plurality of spaced apart openings therein, each sandwich including a flexible carrier sheet having a pressure-sensitive adhesive layer releasably bonded to one surface thereof, said sheet having an opposite surface to which said adhesive layer is releasably bondable with a tenacity substantially less than the tenacity of the bond between said adhesive layer and said one surface, said sandwiches being stacked with said adhesive layer on one carrier sheet engaging said opposite surface of an adjacent carrier sheet, whereby said sandwiches are strippable from said pad one by one for engaging the adhesive layer with a substrate to which the adhesive layer is bondable with a tenacity substantially greater than the tenacity of the bond between the adhesive layer and carrier sheet so that the carrier sheet is strippable from the adhesive layer which remains on the substrate said adhesive layer having a predetermined discontinuous pattern with a plurality of spaced apart openings constituting areas of said carrier sheet to which adhesive has not been applied and corresponding in size and shape to the spaced apart openings in said substrate.