DuPont Teijin Patents Antifog Coatings

March 25, 2014

U.S. 8,557,384 B2
DuPont Teijin Films U.S. Limited Partnership, Chester, Va. (US) composite film comprising a polyester film substrate having first and second sides, and on at least one of said first and second sides a coating composition comprising an alkali metal silicate, a wetting agent, and a hydrophilic antifog agent, wherein the hydrophilic antifog agent has a molecular weight no greater than 20,000 Daltons.