Patent ID: 9605181
Date: 2017-03-28
CPC Classifications: C09J,Y10T

Claim:
1. A micropatterned polymeric structure that provides adhesion, high friction under contact pressure and sealing against a contact surface which can be smooth, rough or wet, the micropatterned structure comprising: a polymeric substrate; an array of discrete polymeric microfibrils protruding from a surface of the substrate, with average microfibril cross-sectional dimension of 1 to 1000 micrometer, microfiber length of 1 to 3000 micrometer, microfibril length to cross-sectional dimension ratio greater than or equal to 1; and rows of continuous polymeric microribbons in between microfibrils, with microribbon width equal to or greater than the average microfibril cross-sectional dimension, and 5 to 500 rows of microfibrils occurring between two consequent microribbons.