Ultraviolet control of the release of a pressure-sensitive adhesive in contact with a silicone release liner
AssigneeMorgan Adhesives Company
InventorsRobert G. Stocq, Jean-Marc C. Francois
Life of this patent
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Abstract
A pressure-sensitive laminate and a method for making the same, for which the release strength between an adhesive layer and a release liner can be selectively varied after the laminate has been manufactured by exposing the interface between the adhesive layer and the release liner to ultraviolet light. The invention allows the selective enhancement of release strength is specific zones, such as by use of a mask. It also allows for the manufacture of a laminate having two face sheets with no dedicated backing sheet, each face sheet acting as the backing sheet for the other.
Claims9
A pressure-sensitive adhesive laminate comprising:
- an adhesive layer and a first release coating contacting the adhesive layer, the first release coating and the adhesive layer being separable, the force required to separate the adhesive layer and the first release coating being set by application of ultraviolet light to an interface between the adhesive layer and the first release coating.
Dependencies are inferred from the claim text.