Building a bridge poly aspartic acid and its salt

摘要

(57) Abstract porisukushinimido and the new building a bridge poly anhydro aspartic acid which is the product of the reaction with toriaminononan (TAN) is disclosed. The constituent where degree of building a bridge differs according to the tonnage of the building a bridge medicine which is used, generates. porisukushinimido like the 3:1: At the mol ratio of TAN you can obtain the water insoluble material, but at mol ratio of the 102:1, 28 weight % with you can obtain the water soluble material. That kind of chemical compound is useful as a thickener, a deflocculant, a coagulant and a water absorption medicine.