A polyether derivative, a process for preparing the polyether derivative, a poly(urethane)ureamide obtained therefrom and a process for preparing the poly(urethane)ureamide

摘要

A poly(urethane)ureamide which comprises a polymer obtained by a reaction of (a) a polyether derivative of the general formula (I) and (b) a polyisocyanate exhibits an excellent wear resistance and heat resistance due to the presence of the aromatic amido groupswherein A is an n-valent radical obtained by removal of hydroxyl groups from an n-valent polyoxyalkylenepolyol having a molecular weight of 400 to 10,000,n is an integer of 2 to 8,x is an average value and a number of 0 ≤ x (n-1) andy is an average value and a number of 0.05 ≤ y 1.