Patent ID: 7951426
Filing Date: 2011-05-31
Classification: C03C,C08J,C09D

Abstract:
1. A method of making a coated article including a hydrophilic coating having hydrophilic properties, the method comprising: dissolving at least polyethylenimine in at least water to form a polyethylenimine water mixture and mixing the polyethylenimine water mixture, wherein the polyethylenimine water mixture comprises less than or equal to 10 percent polyethylenimine by weight; applying a surfactant to a surface of a substrate and drying to form a first layer, wherein the surfactant includes a nonionic surfactant and comprises a fluoroalkyl substituted polyethylene glycol; applying the polyethylenimine water mixture over at least the first layer on the substrate and drying the polyethylenimine water mixture to form a second layer; and wherein the second layer is hydrophilic, such that a sessile drop of water in contact with the second layer exhibits a contact angle of less than or equal to 25 degrees.