Patent ID: 9126155
Filing Date: 2015-09-08
Classification: B01D,C08G

Abstract:
1. A self-cross-linked aromatic polyimide polymer comprising a formula (II): wherein X 1 , is, wherein X 2 is wherein X 3 is Y 1 —CO— is Y 2 —O— is Y 3 is selected from the group consisting of and mixtures thereof, and —R′— is selected from the group consisting of and mixtures thereof, and —R″— is selected from the group consisting of —H, COCH 3 , and mixtures thereof; n, m, and p are independent integers from 2 to 500; the molar ratio of (n+m)/p is in a range of 1:20 to 1:0; and the molar ratio of n/m is in a range of 1:10 to 10:1.