Poly aspartic acid and/or manufacturing method of poly aspartic acid imido

摘要

(57) Abstract (A) the maleic anhydride, maleic acid and fumaric acid and/or malic acid (b) ammonia and/or 1st class or the poly aspartic acid which the secondary amine consists of and/or the poly aspartic acid imido, mol ratio (a) of the 1:0.1 - the 1:3: With (b), produces under existing of copolymerization possible chemical compound in the manner which with when, at that time, component (a) (b), it makes contact mutually at the temperature which exceeds the 100, makes condense thermally, it continues at the same time with when adding water resolution this polycondensation union.