METHOD OF MAKING ADHESIVE ARTICLE

摘要

Methods of making cut adhesive articles are described. The methods involve: providing a crosslinked pressure sensitive adhesive layer disposed on a substrate, embossing a surface of the crosslinked pressure sensitive adhesive layer to form a microstructured crosslinked pressure sensitive adhesive layer having a microstructured adhesive surface, and die cutting the microstructured crosslinked pressure sensitive adhesive layer.

主权项

1. A cut adhesive article prepared according to the method comprising:
providing an adhesive article having a chemically crosslinked pressure sensitive adhesive layer disposed on a substrate where the chemically crosslinked pressure sensitive adhesive is a crosslinked poly(meth)acrylate pressure sensitive adhesive, embossing a surface of the chemically crosslinked pressure sensitive adhesive layer with a microstructured release liner, wherein the microstructured release liner comprises a silicone-coated polyethylene terephthalate liner or a high density polyethylene-coated paper liner with a solventless silicone release coating, and wherein the liner comprises a microstructured pattern having features with depths of from 13-25 micrometers to form a microstructured chemically crosslinked pressure sensitive adhesive layer having a microstructured adhesive surface, and die cutting the microstructured chemically crosslinked pressure sensitive adhesive layer, wherein the die cut edge of the microstructured chemically crosslinked pressure sensitive adhesive layer shows decreased adhesive ooze and edge stickiness when compared to the same chemically crosslinked pressure sensitive adhesive layer that does not have a microstructured surface.