Patent ID: 9555602
Date: 2017-01-31
CPC Classifications: B29C,B29K,B32B,C09J,Y10T

Claim:
1. A method of making a microstructured adhesive article comprising: (a) providing an article comprising a crosslinked pressure sensitive adhesive layer disposed on a backing, wherein the crosslinked pressure sensitive adhesive layer has a thickness of from about 10 micrometers to about 1500 micrometers, wherein the crosslinked pressure sensitive adhesive does not interfere with light transmission of light in the visible region, having a luminous transmittance of at least 95% and a haze of less than 5% as measured according to ASTM D 1003-95 after dry lamination; and (b) embossing the surface of the crosslinked pressure sensitive adhesive layer with a microstructured liner or a molding tool to form a crosslinked pressure sensitive adhesive layer having a microstructured adhesive surface structure, wherein the structure consists of V-grooves or channels and wherein the surface structure is unstable when not in contact with the microstructured liner or molding tool, and the adhesive layer is able to wet out a substrate surface by flattening of the microstructured surface structures and displays complete wet out to a glass substrate after 48 hours.