Fatty acid ("Baker 9-11")/40 Xylene---to 45% N.V. after correction for loss due to eater formation "Epon" 1004/60
配制方法:
charge the epoxy resin and fatty acid to a three-neck flask fitted with an agitator, thermometer, water trap, and reflux condenser; blanket with CO2. Heat to 500'F and esterify using a xylene azeotrope until an acid number of 2 is obtained. Cool and reduce to 45% N.V with xylene. After cooling to room temperature add 0.005% cobalt drier as metal (for baking) or 0.04% cobalt drier as metal (for air dry), based on total solids of the epoxy ester.