Patent ID: 9096780
Filing Date: 2015-08-04
Classification: B32B,B65D,C08L,C09J

Abstract:
1. A package having an adhesive-based reclosable fastener, the package comprising: walls forming a cavity for receiving one or more products; opposing panels of the walls; a reclosable UV-cured adhesive-based fastener supplied from opposing adhesive portions of a UV-cured pressure sensitive adhesive with one of the opposing adhesive portions disposed on each of the opposing panels, the UV-cured pressure sensitive adhesive including at least one UV-curable acrylic oligomer, at least one tack control component, and optionally at least one elastomeric material; an adhesive component ratio (ACR) of the UV-cured pressure sensitive adhesive defined by formula (A) where the weight percent of the UV-curable acrylic oligomer relative to the sum of the weight percents of the tack control component and the optional at least one elastomeric material is about 0.5 to about 1.5 the ACR effective so that the reclosable UV-cured adhesive-based fastener has a first peel adhesion between the opposing adhesive portions of about 200 grams per linear inch (gpli) to about 900 gpli and up to five subsequent peel adhesions between the opposing adhesive portions each about 30 percent to about 200 percent of the first peel adhesion; wherein the ACR and the package walls are effective to form a bond strength of the UV-cured pressure sensitive adhesive to the opposing panels greater than the first peel adhesion and the subsequent peel adhesions between the opposing adhesive layers so that the opposing panels can be repeatedly peeled open without delaminating the opposing adhesive layers from the opposing panels, and wherein the UV-cured pressure sensitive adhesive has a stronger cohesive bond to itself than a bond to non-adhesive or non-cohesive materials without the UV-cured adhesive delaminating from the opposing walls.