Adhesives and release liners with pyramidal structures

Details Adhesives and release liners with pyramidal structures Adhesives and release liners with pyramidal structures

C - Chemistry, Metallurgy

09

J

C09J 7/02 (2006.01)

Patent

CA 2532348

An adhesive article includes a release liner and an adhesive layer on the surface of the release liner. The release liner has a surface with an arrangement of structures thereon, wherein the structures extend downward from a plane of the surface. The structures have at least three sidewalls. A first sidewall makes an angle with respect to the plane of the surface of greater than about 0~ and less than 90~ and a second sidewall makes an angle with respect to the plane of the surface of greater than 0~ and less than 90~. The first sidewall angle differs from the second sidewall angle by more than 10~.

La présente invention concerne un article collant comprenant une feuille de protection et une couche de colle sur la surface de la feuille de protection. Une face de la feuille de protection présente un dispositif de structures en relief prenant naissance sur le plan de la face considérée. Ces structures comportent au moins trois parois latérales. Une première paroi latérale forme avec le plan de la face un angle d'environ 0· à 90·. Une autre paroi latérale forme avec le plan de la face un angle d'environ 0· à 90·. Le premier angle diffère du second d'au moins 10·.

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