"Polyetherester imides are well known having been described in numerous publications and patents including for example, Honore et al, Synthesis and Study of Various Reactive Oligmers and of Poly(ester-imide-ethers)s, European Polymer Journal Vol. 16, pp. 909-916, Oct. 12, 1979; and in Kluiber et al, U.S. Pat. No. 3,274,159 and Wolfe Jr., U.S. Pat. Nos. 4,371,692 and 4,371,693, respectively." . . . .