Press Release / The Dow Chemical Company (NYSE: DOW) and Koehler Paper Group are the recipients of a 2017 U.S. Environmental Protection Agency (EPA) Presidential Green Chemistry Challenge Award. The award was given in the design of greener chemicals category for the development of ROPAQUE™ NT-2900 Opaque Polymer for BLUE 4EST™ Thermal Paper. This is the 11th Presidential Green Chemistry Award Dow and its affiliates have received since the EPA introduced the award in 1996. - 6 years ago