Polyimide adhesives

摘要

A process of preparing aromatic polyamide-acids for use as adhesives by reacting an aromatic dianhydride to an approximately equimolar amount of an aromatic diamine in a water or lower alkanol miscible ether solvent and wherein the polyamide-acids are converted to polyimides by heating to the temperature range of 200 DEG - 300 DEG C. and wherein the polyimides are thermally stable and insoluble in ethers and other organic solvents.