CROSSLINKING POLYIMIDE, CROSSLINKING POLYIMIDE PAINT, AND SOLVENT RESISTANT POLYIMIDE FILM

摘要

PROBLEM TO BE SOLVED: To provide a polyimide which does not dissolve or swell by a ketonic solvent after crosslinking, it is also easy to be made a film by coating and drying as a solution in the solvent before crosslinking.;SOLUTION: A crosslinking polyimide has a polyimide unit which is made by combining a residue of a tetra acid including at least one aromatic ring and a residue of a diaminobenzene whose aromatic ring is replaced by methyl or a bisaminophenyl fluorine whose aromatic ring is replaced by methyl in a molecule.;COPYRIGHT: (C)2001,JPO