Patent ID: 8182871

Claim:
A method of forming a topographically patterned coating comprising the steps of: a) disposing a composition comprising a polymer or polymer precursors onto a substrate selected from the group polymeric films, paper, polymer-coated paper, rubber and laminates of polymers, to form a liquid coating on the substrate; b) cooling the coating through the substrate by means of an energy transfer surface selected from a plate on the side of the substrate opposite the liquid coating and a roll over which the coated substrate is transported, the plate or roll having a first pattern of areas to form a topographically patterned coating, the topographical pattern corresponding to the first pattern of areas; and c) solidifying the topographically patterned coating by polymerizing, cross-linking, curing, drying, or freezing the coating to yield topographical features having a mean height of 10 nanometers to 1 millimeter and a mean width of 10 nanometers or greater.