Method of molding simple or complex micro and/or nanopatterned features on both planar or non-planar molded objects and surfaces and the molded objects produced using same
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United States of America Patent
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Feb 14, 2017
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Mar 12, 2015
app pub date -
Apr 13, 2012
filing date -
Apr 13, 2012
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Abstract
The present invention is a method that (i) allows for creating micro and/or nanostructures on either planar or non-planar three-dimensional surfaces in a single molding step, and (ii) allows for the molded production of complex high-aspect ratio micro and/or nanostructures including but not limited to cylinders, conical structures, low aspect-ratio channels, bumps, or posts. An example of such a complex structure are high aspect ratio pillars with enlarged “mushroom-shaped” or undercut tips which demonstrate enhanced, repeatable adhesion and shear strength on a variety of substrates when compared with other micro and/or nanostructures and unstructured materials. The mold of such a material requires an “undercut” feature that cannot be produced using typical micro/nano-molding processing techniques.
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