Pressure-sensitive adhesives having microstructured surfaces

Details Pressure-sensitive adhesives having microstructured surfaces Pressure-sensitive adhesives having microstructured surfaces

C - Chemistry, Metallurgy

09

J

C09J 7/02 (2006.01)

Patent

CA 2173855

A coated substrate is disclosed. The substrate is coated on at least one side with a continuous layer of a pressure-sensitive adhesive having a microstructured surface. The microstructured surface has a series of features, each of the features having a height 2.5 to 375 micrometers, a spacing aspect ratio of greater than 1 to 1.9, and a lateral aspect ratio of from 0.1 to 10. At least two dimensions of each feature selected from the group consisting of length, width, and depth or height, are microscopic.

L'invention se rapporte à des articles enduits d'un adhésif sensible à la pression, notamment des rubans et des enduits de transfert, qui possèdent des surfaces microstructurées, ainsi qu'à des procédés de fabrication d'articles adhésifs sensibles à la pression possédant ces surfaces microstructurées. Les propriétés de fonctionnement des articles adhésifs sensibles à la pression peuvent être adaptées sur mesure par la modification indépendante de la microstructure et des propriétés rhéologiques de l'adhésif sensible à la pression.

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