ADHESIVES HAVING A MICROREPLICATED TOPOGRAPHY AND METHODS OF MAKING AND USING SAME

The invention provides a method of controlling the topography of an adhesive surface, comprising: contacting a microembossed pattern, which is a surface having a three-dimensional pattern that generates a maximum difference of less than 45 µm in the surface topography of a continuous adhesive, to a...

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Bibliographische Detailangaben
Hauptverfasser:	MEIXNER, LARRY A, SHER, FRANK T, LONCAR, FRANCIS V.,JR, CALHOUN, CLYDE D
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY DYES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL PAINTS PERFORMING OPERATIONS POLISHES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING USE OF MATERIALS AS ADHESIVES WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention provides a method of controlling the topography of an adhesive surface, comprising: contacting a microembossed pattern, which is a surface having a three-dimensional pattern that generates a maximum difference of less than 45 µm in the surface topography of a continuous adhesive, to a layer of adhesive and forming thereby a patterned continuous pressure sensitive adhesive surface having a topography in at least one major, substantially continuous surface that is substantially the inverse of the microembossed pattern such that when an adhesion interface is established between the patterned layer of adhesive and a supporting substrate, the adhesive has a contact area of at least 35% and the topography of the adhesive surface allows exhaustion of fluids from the plane of the adhesion interface. Also provided are articles comprising an adhesive surface with the described topography. Also provided is a release liner for making such an adhesive surface.