Agfa Gevert still makes various Polyester based films in Belgium. One line is the COPEX microfilm, that they are now selling through Eastman Micro-graphics under Kodak's Former Imagelink brand., (I guess the order size was too small these days for Building 38 to handle.)

http://www.agfa.com/sp/global/en/int...ions/index.jsp
shows most of the various film based products. Many of the MACO films are re-purposed Ariel Camera Films.