METHOD FOR PREPARATION OF ASPARTATE

摘要

PROBLEM TO BE SOLVED: To provide a new aspartate, a method for preparing the same and to provide a method for using the aspartate as a reactive component for polyisocyanate in two-component polyurethane coating composition and for preparing polyurethane prepolymer. SOLUTION: The aspartate is prepared by at first reacting a diamine or polyamine with an unsaturated ester and then reacting the resultant product with a ketone. COPYRIGHT: (C)2005,JPO&NCIPI