Methods fro preparing modified release liners and modified adhesive articles
Assignee3M Innovative Properties Company
InventorsFrank T. Sher, David J. Yarusso
Life of this patent
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Abstract
Adhesive articles are prepared through the use of modified release liners. The modified release liners include a fracturable layer and a release surface partially covering the fracturable layer. The modified release liners may be prepared by selective coating of a release material onto the fracturable layer or by selective treatment of a release surface to expose portions of the fracturable layer. Upon removal of an adhesive layer adhered to the modified release liner, portions of the fracturable layer of the release liner adhere to the adhesive layer to form a modified adhesive layer.
Claims7
A method of preparing a release liner comprising:
- providing a base layer wherein the base layer comprises a fracturable layer;
- and
- selectively coating a release coating onto the fracturable layer leaving regions of fracturable layer uncovered by the release surface.
A method of preparing a modified release liner comprising:
- providing a release liner, wherein the release liner comprises a base layer that comprises a fracturable layer and a release coating on the fracturable layer;
- and
- selectively treating regions of the release coating, wherein the treatment selectively exposes the fracturable layer at the treatment sites or changes the surface energy of the release coating in the selected regions.
Dependencies are inferred from the claim text.