Patent ID: 9150735
Filing Date: 2015-10-06
Classification: C09D,H01G,Y02E,Y10T

Abstract:
1. A coated substrate comprising: a coating that includes a water insoluble polymer and a water soluble polymer; and a substrate covered by the coating, wherein the water insoluble polymer is poly(3,4-ethelynedioxythiophene) (“PEDT”), and the water soluble polymer is poly(styrene sulfonic acid) (“PSSH”), the coated substrate is prepared by a method including the following steps: providing an aqueous dispersion containing PEDT and PSSH, applying the aqueous dispersion onto a surface of a substrate, and allowing the applied aqueous dispersion to dry to form, due to different water affinities of the two polymers, on the surface of the substrate a nanosegregant having a thickness of 1-10 nm capable of capturing a water film having a thickness of 0.1-10 mm, wherein the nanosegregant includes a water-insoluble layer containing both PEDT and PSSH and a water-soluble layer also containing both PEDT and PSSH.