| 摘要 |
PROBLEM TO BE SOLVED: To obtain a polyimide soluble in general-purpose low-boiling organic solvents represented by methyl ethyl ketone and capable of affording a negative- type polyimide soluble to aqueous alkaline solution, to provide a method for producing the above polyimide, and to obtain a photosensitive composition using it. SOLUTION: This polyimide is obtained by reaction between a diaminopolysiloxane, two kinds of diamine compound consisting of hydroxyl- contg. diamines or three kinds of diamine compound consisting of the above two kinds and an aromatic or alicyclic diamine, and 4,4'-(hexafluoroisopropylidene)diphthalic dianhydride to form a polyamic acid once which is then subjected to polyimidation reaction. The other objective photosensitive composition is obtained by incorporating the above polyimide with a photocrosslinking agent and a photo-acid generator. |
