Patent ID: 9255181
Filing Date: 2016-02-09
CPC Classification: C08G,C08L,D01D,D01F,D04H,Y10T

Claim Text:
1. A process comprising reaction blending a polyimide resin and an organic compound to produce an aryl amine functionalized polyimide having aryl amine functionality in excess of any anhydride functionality, the process comprising: melt blending an aryl polyimide resin and an organic compound under reaction conditions to form a reaction product comprising an aryl amine functionalized polyimide having aryl amine functionality in excess of any anhydride functionality; wherein the aryl polyimide resin has a weight average molecular weight (Mw) from 5,000 to 100,000 Daltons and an inherent viscosity of 0.35 to 1.0 dl/g as measured in m-cresol at 25° C.; wherein the organic compound comprises at least one primary aliphatic amine, wherein the primary aliphatic amine does not have a direct linkage of a nitrogen to an aryl group, and wherein the primary aliphatic amine does not have a functionality selected from the group consisting of a halogen functionality, a hydroxyl functionality, a sulfonic acid functionality, a sulfonic acid salt functionality, and combinations thereof; wherein the aryl amine functionalized polyimide has an aryl amine content of from 0.3 to 3.0 mole percent of the aryl amine functionalized polyimide; and, recovering the aryl amine functionalized polyimide.