Patent ID: 11286347

Abstract:
A branched polyimide of the formula (I) wherein G is a group having a valence of t, present in an amount of 0.01 to 10 mol %, or 0.05 to 5 mol %, or 0.1 to 4 mol %, or 0.1 to 3 mol %, each of Q, M, D, V, and R are as defined herein, q is 0 or 1, m is 0 or 1, d is 0 or 1, p is 1 or 2, t is 2 to 6, preferably 2 to 4, and each n is independently the same or different, and is 1 to 1,000, provided that the total of all values of n is greater than 4, wherein the branched polyimide has a zero-shear viscosity in a range from 500 to 15,000 Pa·s, a rheology ratio of 1.1 to 5, and a strain hardening ratio of 1 to 6.